WAL.PRA / Western Alliance Bancorporation - Preferred Stock - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

Western Alliance Bancorporation - الأسهم المفضلة
US ˙ NYSE

الإحصائيات الأساسية
LEI 5493003VJXZ5JXT9S762
CIK 1212545
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Western Alliance Bancorporation - Preferred Stock
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
August 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

August 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

July 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 17, 2025 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 17, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 17, 2025 EX-99.1

Western Alliance Bancorporation Names Vishal Idnani as Next Chief Financial Officer Current Vice Chairman and Chief Financial Officer, Dale Gibbons, to transition to new leadership role as Vice Chairman and Chief Banking Officer, Deposit Initiatives

Western Alliance Bancorporation Names Vishal Idnani as Next Chief Financial Officer Current Vice Chairman and Chief Financial Officer, Dale Gibbons, to transition to new leadership role as Vice Chairman and Chief Banking Officer, Deposit Initiatives and Innovation PHOENIX — July 17, 2025 — Western Alliance Bancorporation (NYSE: WAL), one of the country’s top- performing banking companies, today announced a planned transition in the Chief Financial Officer position, with Vishal Idnani joining the Company to assume the role of CFO and Dale Gibbons transitioning to a new leadership position focused on the Company’s organic deposit strategy.

July 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 14, 2025 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 14, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 17, 2025 EX-99.1

51.8%1, adjusted for deposit costs

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-July 17, 2025 SECOND QUARTER 2025 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $237.8 million $2.07 $331.2 million 3.53% 60.1% $61.77 51.8%1, adjusted for deposit cost

July 17, 2025 EX-99.2

EARNINGS CALL 2nd Quarter 2025 July 18, 2025 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matte

walq22025earningspresent EARNINGS CALL 2nd Quarter 2025 July 18, 2025 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

June 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

May 1, 2025 EX-10.1

Stock Unit Agreement pursuant to the Company's 2005 Stock Incentive Plan.

WESTERN ALLIANCE BANCORPORATION PERFORMANCE STOCK UNIT AGREEMENT Western Alliance Bancorporation (the “Company”) has granted to the Participant named in the Notice of Grant of Stock Units (the “Grant Notice”) to which this Performance Stock Unit Agreement (the “Agreement”) is attached an Award consisting of Stock Units subject to the terms and conditions set forth in the Grant Notice and this Agreement.

May 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 0

May 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 WESTERN ALLIANCE BANC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commis

April 23, 2025 DEF 14A

Our People

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 23, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

April 21, 2025 EX-99.2

EARNINGS CALL 1st Quarter 2025 April 22, 2025 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concer

EARNINGS CALL 1st Quarter 2025 April 22, 2025 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

April 21, 2025 EX-99.1

55.8%1, adjusted for deposit costs

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-April 21, 2025 FIRST QUARTER 2025 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $199.1 million $1.79 $277.6 million 3.47% 63.5% $60.03 55.8%1, adjusted for deposit cost

April 21, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

March 27, 2025 EX-4.1

Certificate of Amendment to the BW Real Estate, Inc. Articles of Incorporation establishing the Certificate of Designation of the BW Real Estate, Inc. 9.500% Fixed-Rate Reset Non-Cumulative Exchangeable Perpetual Series B Preferred Stock, dated March 25, 2025 (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed March 27, 2025).

BW REAL ESTATE, INC. Certificate of Designation of 9.500% Fixed-Rate Reset Non-Cumulative Exchangeable Perpetual Series B Preferred Stock 1. Definitions. The following terms used herein shall be defined as set forth below. Unless otherwise defined herein, capitalized terms used herein have the meanings set forth in the Articles of Incorporation (defined below). “Appropriate Federal Banking Agency”

March 27, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 27, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

March 25, 2025 EX-1.1

, 2025, by and among Western Alliance Bancorporation, Western Alliance Bank and BW Real Estate, Inc., and J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as representatives of the initial purchasers.

Exhibit 1.1 BW Real Estate, Inc. 300,000 Shares of 9.500% Fixed-Rate Reset Non-Cumulative Exchangeable Perpetual Series B Preferred Stock Automatically Exchangeable in Specified Circumstances into 300,000 Shares of 9.500% Fixed-Rate Reset Non-Cumulative Perpetual Series A Preferred Stock of Western Alliance Bank Purchase Agreement March 24, 2025 J.P. Morgan Securities LLC MUFG Securities Americas

March 25, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

February 25, 2025 EX-21.1

List of Subsidiaries of Western Alliance.

Exhibit 21.1 WESTERN ALLIANCE BANCORPORATION LIST OF SUBSIDIARIES (As of December 31, 2024) Name Doing Business As Jurisdiction of Incorporation or Organization Western Alliance Bank Alliance Bank of Arizona Bridge Bank First Independent Bank Bank of Nevada Torrey Pines Bank Alliance Association Bank Western Alliance Corporate Finance Western Alliance Public Finance Western Alliance Resort Finance

February 25, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-32550 WESTERN AL

February 25, 2025 EX-19

Western Alliance Bancorporation Insider Trading Policy

WESTERN ALLIANCE BANCORPORATION INSIDER TRADING POLICY 1 Trading in Securities While in Possession of Material Nonpublic Information is Prohibited The purchase or sale of securities by any person who possesses material nonpublic information is a violation of federal and state securities laws.

February 7, 2025 EX-99

JOINT FILING AGREEMENT

Invesco Joint Filing Agreement JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) (l) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of the attached Schedule 13G, and any and all amendments thereto, and expressly authorize Invesco Ltd.

February 6, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 27, 2025 EX-99.1

51.1%1, adjusted for deposit costs

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-January 27, 2025 FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $216.9 million $1.95 $319.4 million 3.48% 61.2% $58.24 51.1%1, adjusted

January 27, 2025 EX-99.2

EARNINGS CALL 4th Quarter 2024 January 28, 2025 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions conc

EARNINGS CALL 4th Quarter 2024 January 28, 2025 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

January 27, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2025 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

December 17, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 12, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

December 11, 2024 EX-99.1

Date: December 10, 2024

Exhibit 99.1 Date: December 10, 2024 Subject line: Letter from the CEO Dear Colleagues and Shareholders, This evening, I informed WAL’s Board of Directors that I will be taking a leave of absence beginning next Monday to undergo bypass surgery. Despite having no symptoms of cardiovascular disease and feeling in perfect health, a routine screening identified the need for this important procedure. I

December 11, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

November 1, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file numbe

October 17, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 17, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 17, 2024 EX-99.1

52.7%1, adjusted for deposit costs

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-October 17, 2024 THIRD QUARTER 2024 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $199.8 million $1.80 $285.7 million 3.61% 64.5% $57.97 52.7%1, adjusted for deposit co

October 17, 2024 EX-99.2

EARNINGS CALL 3rd Quarter 2024 October 18, 2024 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions conc

EARNINGS CALL 3rd Quarter 2024 October 18, 2024 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

August 1, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2024 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

August 1, 2024 EX-10.1

Form of Deferred Stock Unit Agreement pursuant to the Company's 2005 Stock Incentive Plan.

WESTERN ALLIANCE BANCORPORATION DEFERRED STOCK UNIT AGREEMENT Western Alliance Bancorporation (the “Company”) has granted to the Participant named in the Notice of Grant of Deferred Stock Units (the “Grant Notice”) to which this Deferred Stock Unit Agreement (the “Agreement”) is attached an Award consisting of Stock Units subject to the terms and conditions set forth in the Grant Notice and this Agreement.

July 30, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 18, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 18, 2024 EX-99.2

EARNINGS CALL 2nd Quarter 2024 July 19, 2024 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concern

EARNINGS CALL 2nd Quarter 2024 July 19, 2024 Q2 20241 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

July 18, 2024 EX-99.1

51.5%1, adjusted for deposit costs

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-July 18, 2024 SECOND QUARTER 2024 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $193.6 million $1.75 $285.0 million 3.63% 62.3% $54.80 51.5%1, adjusted for deposit cost

June 13, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 12, 2024 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 12, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

May 21, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

May 21, 2024 EX-99.1

INVESTOR UPDATE 2nd Quarter 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions con

INVESTOR UPDATE 2nd Quarter 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

May 8, 2024 S-3ASR

As filed with the Securities and Exchange Commission on May 8, 2024

Table of Contents As filed with the Securities and Exchange Commission on May 8, 2024 Registration No.

May 8, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Western Alliance Bancorporation (Exact Name of Registrant as Specified in its Charter) Table 1-Newly Registered Securities Security Type Security Class Title (1) Fee Calculation Rule or Instruction(2) Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to Be  Paid Debt Debt Securities(4) 456(b) and 457(r) (2) (3) (3) (3) (2) (2) Equity Common Stock, par value $0.

May 2, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commis

May 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 0

April 26, 2024 PX14A6G

United States Securities and Exchange Commission Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Pursuant to Rule 14a-103

United States Securities and Exchange Commission Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Pursuant to Rule 14a-103 Name of the Registrant: Western Alliance Bancorporation Name of persons relying on exemption: Inspire Investing, LLC Address of persons relying on exemption: 3597 E Monarch Sky Ln, Suite 330, Meridian, ID 83646 As over 100 investors and financial professionals, serving tho

April 24, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant  ☒        Filed by a Party other than the Registrant  ☐ Check the appropriate box:   ☐ Preliminary Proxy Statement   ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(

April 24, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 24, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒       Filed by a Party other than the Registrant ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Pr

April 18, 2024 EX-99.1

$190.9 million1, excluding notable items

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-April 18, 2024 FIRST QUARTER 2024 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio Book value per common share $177.4 million $1.60 $247.0 million 3.60% 65.2% $53.33 $190.9 million1, excluding notabl

April 18, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2024 WESTERN ALLIANCE B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 18, 2024 EX-99.2

EARNINGS CALL 1st Quarter 2024 April 19, 2024 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matt

EARNINGS CALL 1st Quarter 2024 April 19, 2024 2 This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

March 28, 2024 PX14A6G

Conclusion

NOTICE OF EXEMPT SOLICITATION SUBMITTED BY NON-MANAGEMENT U.S. Securities and Exchange Commission Washington, DC 20549 Notice of Exempt Solicitation under Rule 14a-103 Name of Registrant: Western Alliance Bancorporation Name of person relying on exemption: Bowyer Research Address of person relying on exemption: P.O. Box 120, McKeesport, PA 15135 Vote Yes: – Report on Risks of Politicized De-bankin

February 28, 2024 EX-10.16

pursuant to the Company’s 2005 Stock Incentive Plan

Exhibit 10.16 WESTERN ALLIANCE BANCORPORATION NOTICE OF GRANT OF CASH-SETTLED STOCK UNITS The Participant has been granted an award of cash-settled Stock Units (the “Award”) pursuant to the Western Alliance Bancorporation 2005 Stock Incentive Plan, as amended and restated effective April 7, 2023 (the “Plan”), and the Cash-Settled Stock Unit Agreement attached hereto (the “Agreement”), as follows:

February 28, 2024 EX-97.1

Western Alliance Bancorporation Dodd-Frank Clawback Policy.

Exhibit 97.1 Western Alliance Bancorporation DODD-FRANK CLAWBACK POLICY On September 20, 2023, the Compensation Committee (the “Compensation Committee”) of the Board of Directors (the “Board”) of Western Alliance Bancorporation (the “Company”) recommend the Board adopt, and the Board thereafter has adopted, the following Dodd-Frank Clawback Policy (this “Policy”), effective as of October 2, 2023 (

February 28, 2024 EX-10.14

Form of Performance-Based Stock Unit Agreement pursuant to the Company's 2005 Stock Incentive Plan. ±

Exhibit 10.14 WESTERN ALLIANCE BANCORPORATION PERFORMANCE STOCK UNIT AGREEMENT Western Alliance Bancorporation (the “Company”) has granted to the Participant named in the Notice of Grant of Stock Units (the “Grant Notice”) to which this Performance Stock Unit Agreement (the “Agreement”) is attached an Award consisting of Stock Units subject to the terms and conditions set forth in the Grant Notice

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-32550 WESTERN AL

February 28, 2024 EX-21.1

List of Subsidiaries of Western Alliance.

Exhibit 21.1 WESTERN ALLIANCE BANCORPORATION LIST OF SUBSIDIARIES (As of December 31, 2023) Name Doing Business As Jurisdiction of Incorporation or Organization Western Alliance Bank Alliance Bank of Arizona Bridge Bank First Independent Bank Bank of Nevada Torrey Pines Bank Alliance Association Bank Western Alliance Corporate Finance Western Alliance Public Finance Western Alliance Resort Finance

February 28, 2024 EX-10.15

Executive Restricted Stock Agreement pursuant to the Company’s 2005 Stock Incentive Plan. ±

Exhibit 10.15 EXECUTIVE RESTRICTED STOCK AGREEMENT Western Alliance Bancorporation (the “Company”) has granted to the Participant (or “you”) named in the Notice of Grant of Restricted Stock (the “Grant Notice”) to which this Executive Restricted Stock Agreement (the “Agreement”) is attached an Award consisting of Restricted Stock subject to the terms and conditions set forth in the Grant Notice an

February 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 WESTERN ALLIANC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

February 14, 2024 SC 13G/A

WAL / Western Alliance Bancorporation / CITADEL ADVISORS LLC - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. 1)* WESTERN ALLIANCE BANCORPORATION (Name of Issuer) Common Stock, $0.0001 par value per share (the “Shares”) (Title of Class of Securities) 95

February 14, 2024 EX-99.1

INVESTOR UPDATE 1st Quarter 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions con

INVESTOR UPDATE 1st Quarter 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

February 13, 2024 SC 13G/A

WAL / Western Alliance Bancorporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02274-westernalliancebanco.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Western Alliance Bancorp Title of Class of Securities: Common Stock CUSIP Number: 957638109 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box

February 9, 2024 SC 13G/A

WAL / Western Alliance Bancorporation / Capital International Investors - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the approp

February 6, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2024 WESTERN ALLIANCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

February 5, 2024 CORRESP

February 5, 2024

February 5, 2024 Via EDGAR Office of Finance Division of Corporation Finance United States Securities and Exchange Commission Washington, D.

January 25, 2024 EX-99.1

Adjusted efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-January 25, 2024 FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Adjusted efficiency ratio1 Book value per common share $147.9 million $1.33 $220.3 million 3.65% 59.1% $52.81 $1.911

January 25, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2024 WESTERN ALLIANCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2024 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 25, 2024 EX-99.2

EARNINGS CALL 4th Quarter 2023 JANUARY 26, 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 4th Quarter 2023 JANUARY 26, 2024 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

October 31, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file numbe

October 30, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 19, 2023 EX-99.2

EARNINGS CALL 3rd Quarter 2023 OCTOBER 20, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 3rd Quarter 2023 OCTOBER 20, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

October 19, 2023 EX-99.1

Adjusted efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-October 19, 2023 THIRD QUARTER 2023 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Adjusted efficiency ratio1 Book value per common share $216.6 million $1.97 $290.0 million 3.67% 50.0% $49.78 $43.661, excluding go

October 19, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 10, 2023 CORRESP

October 10, 2023

October 10, 2023 Via EDGAR Office of Finance Division of Corporation Finance United States Securities and Exchange Commission Washington, D.

August 1, 2023 S-8

As filed with the Securities and Exchange Commission on August 1, 2023

Form S-8 As filed with the Securities and Exchange Commission on August 1, 2023 Registration No.

August 1, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Western Alliance Bancorporation (Exact Name of Registrant as Specified in its Charter) Table 1-Newly Registered Securities Security Type Security Class Title Fee Calculation Rule or Instruction Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to Be Paid Equity Common Stock, $0.

August 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2023 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

August 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

July 18, 2023 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-July 18, 2023 SECOND QUARTER 2023 FINANCIAL RESULTS Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $215.7 million $1.96 $282.1 million 3.42% 50.5% $49.22 $43.091, excluding goodwill and

July 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2023 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 18, 2023 EX-99.2

EARNINGS CALL 2nd Quarter 2023 JULY 19, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar exp

q22023earningspresentati EARNINGS CALL 2nd Quarter 2023 JULY 19, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

June 14, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

June 14, 2023 EX-10.1

Certificate of Conversion, as filed with the Delaware Secretary of State on May 29, 2014 (incorporated by reference to Exhibit 3.2 of Western Alliance’s Form 8-K filed with the SEC on June 3, 2014).

WESTERN ALLIANCE BANCORPORATION 2005 STOCK INCENTIVE PLAN (As Amended and Restated Effective April 7, 2023) Western Alliance Bancorporation, a Delaware corporation (the “Company”), sets forth herein the terms of its 2005 Stock Incentive Plan, as amended and restated (the “Plan”), as follows: 1.

May 16, 2023 EX-99.1

INVESTOR UPDATE 2Q 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning m

wal2q23investorpresxfin INVESTOR UPDATE 2Q 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

May 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 WESTERN ALLIANCE BAN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

May 9, 2023 DEFR14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

DEFR14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

May 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 0

May 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 WESTERN ALLIANCE BANC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commis

May 4, 2023 EX-99.1

Western Alliance Bancorporation Issues Statement Disputing Recent Financial Times Article

Western Alliance Bancorporation Issues Statement Disputing Recent Financial Times Article PHOENIX (May 4, 2023) – Western Alliance Bancorporation (“Western Alliance” or the “Bank”) (NYSE: WAL), the holding company for Western Alliance Bank, today issued the following statement in response to an article published by the Financial Times.

May 2, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2023 WESTERN ALLIANCE BANC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commis

April 27, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

April 27, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMI S S IO N Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMI S S IO N Washington, D.

April 18, 2023 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-April 18, 2023 FIRST QUARTER 2023 FINANCIAL RESULTS Fourth Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $142.2 million $1.28 $351.6 million 3.79% 43.2% $47.72 $2.301, as adjusted $41.5

April 18, 2023 EX-99.2

EARNINGS CALL 1st Quarter 2023 APRIL 19, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar ex

walq12023earningspresent EARNINGS CALL 1st Quarter 2023 APRIL 19, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

April 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2023 WESTERN ALLIANCE B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 10, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2023 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

April 5, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 5, 2023 WESTERN ALLIANCE BA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 5, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

April 5, 2023 EX-99.1

Western Alliance Bancorporation Issues Updated Financial Information

Western Alliance Bancorporation Issues Updated Financial Information PHOENIX - Western Alliance Bancorporation (“Western Alliance” or the “Bank”) (NYSE: WAL), the holding company for Western Alliance Bank, today provides additional unaudited financial information and clarifies deposit levels as of March 31, 2023: •End of quarter total deposits were $47.

April 5, 2023 EX-99.1

Western Alliance Bancorporation Announces First Quarter 2023 Earnings Release Date, Conference Call and Webcast, and provides Quarter End Financial Update

Western Alliance Bancorporation Announces First Quarter 2023 Earnings Release Date, Conference Call and Webcast, and provides Quarter End Financial Update PHOENIX-(BUSINESS WIRE)- Western Alliance Bancorporation (NYSE: WAL) announced today that it plans to release its first quarter 2023 financial results after the market closes on Tuesday, April 18, 2023.

April 5, 2023 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

March 14, 2023 EX-99.1

JOINT FILING AGREEMENT

EXHIBIT 99.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Statement on Schedule 13G filed herewith (and any amendments thereto), relating to the Shares of Western Alliance Bancorporation, a Delaware corporation, is being filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(c) under the Securities Exchange Act of 1934, as amended, on behalf of each of the

March 14, 2023 SC 13G

WAL / Western Alliance Bancorp / CITADEL ADVISORS LLC - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. )* Western Alliance Bancorporation (Name of Issuer) Common Stock, par value $0.0001 per share (the “Shares”) (Title of Class of Securities) 957

March 13, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

February 23, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-32550 WESTERN AL

February 23, 2023 EX-21.1

List of Subsidiaries of Western Alliance.

Exhibit 21.1 WESTERN ALLIANCE BANCORPORATION LIST OF SUBSIDIARIES (As of December 31, 2022) Name Doing Business As Jurisdiction of Incorporation or Organization Western Alliance Bank Alliance Bank of Arizona Bridge Bank First Independent Bank Bank of Nevada Torrey Pines Bank Alliance Association Bank Western Alliance Corporate Finance Western Alliance Public Finance Western Alliance Resort Finance

February 14, 2023 EX-99.1

INVESTOR UPDATE 1Q 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning m

INVESTOR UPDATE 1Q 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

February 14, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

February 13, 2023 SC 13G/A

WAL / Western Alliance Bancorporation / Capital International Investors - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the approp

February 9, 2023 SC 13G/A

WAL / Western Alliance Bancorporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02243-westernalliancebanco.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Western Alliance Bancorp Title of Class of Securities: Common Stock CUSIP Number: 957638109 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box t

February 9, 2023 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 2, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction

February 7, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 6, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 24, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 24, 2023 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 24, 2023 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-January 24, 2023 FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Fourth Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $293.0 million $2.67 $367.8 million 3.98% 46.9% $46.47 $40.251,

January 24, 2023 EX-99.2

EARNINGS CALL 4th Quarter 2022 JANUARY 25, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 4th Quarter 2022 JANUARY 25, 2023 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

December 8, 2022 EX-99.1

Western Alliance Bancorporation Adds New Members to Board of Directors

Exhibit 99.1 FOR IMMEDIATE RELEASE Western Alliance Bancorporation Adds New Members to Board of Directors PHOENIX (Dec. 8, 2022) ? Western Alliance Bancorporation (NYSE: WAL) today announced the addition of two new members to its Board of Directors. The Board of Directors on December 2, 2022, appointed two new Board members, effective immediately: Kevin M. Blakely and Paul Galant. The new director

December 8, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 2, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

November 2, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

November 2, 2022 EX-99.1

INVESTOR UPDATE 4Q 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning m

INVESTOR UPDATE 4Q 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

November 1, 2022 EX-10.1

Form of Amendment to Executive Restricted Stock Agreement pursuant to the Company's 2005 Stock Incentive Plan.

Exhibit 10.1 TO: FROM: Barbara Kennedy DATE: September 30, 2022 RE: Amendment to RSA Award Agreements – Adding Consulting Services Requirement for Qualified Retirement You have outstanding, unvested restricted stock awards (the “Outstanding RSA Awards”) under the Western Alliance Bancorporation 2005 Stock Incentive Plan. The company approved changes to the Outstanding RSA Awards to add a condition

November 1, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file numbe

October 31, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 20, 2022 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-October 20, 2022 THIRD QUARTER 2022 FINANCIAL RESULTS Third Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $264.0 million $2.42 $358.1 million 3.78% 45.5% $43.39 $37.161, excluding goodw

October 20, 2022 EX-99.2

EARNINGS CALL 3rd Quarter 2022 OCTOBER 21, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 3rd Quarter 2022 OCTOBER 21, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

October 20, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

September 7, 2022 EX-99.1

Western Alliance Bank Announces Executive Promotions, Newly Formed Executive Leadership Team The bank further aligns its management structure to support industry-leading growth

Exhibit 99.1 Media Contact: Stephanie Whitlow Senior Marketing Director 480.998.6547 [email protected] FOR IMMEDIATE RELEASE Western Alliance Bank Announces Executive Promotions, Newly Formed Executive Leadership Team The bank further aligns its management structure to support industry-leading growth PHOENIX (Sept. 6, 2022) ? Western Alliance Bank, one of the country's top-performin

September 7, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

July 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

July 28, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 21, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 21, 2022 EX-99.2

EARNINGS CALL 2nd Quarter 2022 JULY 22, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar exp

EARNINGS CALL 2nd Quarter 2022 JULY 22, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

July 21, 2022 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-July 21, 2022 SECOND QUARTER 2022 FINANCIAL RESULTS Second Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $260.2 million $2.39 $351.1 million 3.54% 42.8% $43.07 $36.671, excluding goodwi

June 16, 2022 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

June 16, 2022 EX-3.1

Amended and Restated Bylaws of Western Alliance, effective as of June 14, 2022 (incorporated by reference to Exhibit 3.1 of Western Alliance's Form 8-K filed with the SEC on June 16, 2022).

BYLAWS OF WESTERN ALLIANCE BANCORPORATION As amended effective June 14, 2022 ARTICLE I STOCKHOLDERS 1.

April 29, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

April 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 0

April 29, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

April 26, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 21, 2022 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-April 21, 2022 FIRST QUARTER 2022 FINANCIAL RESULTS First Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $240.1 million $2.22 $307.2 million 3.32% 44.1% $43.56 $37.131, excluding goodwil

April 21, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 21, 2022 EX-99.2

EARNINGS CALL 1st Quarter 2022 APRIL 22, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar ex

EARNINGS CALL 1st Quarter 2022 APRIL 22, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

April 7, 2022 EX-99.2

Western Alliance Bancorporation Announces Two Retirements from Board of Directors Sarver and Hilton have served on the Board since 2002

Exhibit 99.2 Press Release Western Alliance Bancorporation Announces Two Retirements from Board of Directors Sarver and Hilton have served on the Board since 2002 PHOENIX - Western Alliance Bancorporation today announced that Robert Sarver and Steve Hilton will be retiring from their respective roles as Executive Chairman and Director of the Board of Directors of the company and its principal subs

April 7, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

April 7, 2022 EX-99.1

Western Alliance Bancorporation Board Extends Contract of Chief Executive Officer CEO Kenneth A. Vecchione signs new three-year deal; Bruce Beach to become Chairman of the Board; Patricia Arvielo receives Board director nomination

Exhibit 99.1 Press Release Western Alliance Bancorporation Board Extends Contract of Chief Executive Officer CEO Kenneth A. Vecchione signs new three-year deal; Bruce Beach to become Chairman of the Board; Patricia Arvielo receives Board director nomination PHOENIX - Western Alliance Bancorporation today announced that its Board of Directors and Chief Executive Office have agreed to a contract ext

April 7, 2022 EX-10.1

Letter Agreement, dated as of April 6, 2022, between Western Alliance Bancorporation and Kenneth A. Vecchione (incorporated by reference to Exhibit 10.1 of Western Alliance’s Current Report on Form 8-K filed with the SEC on April 7, 2022). ±

Exhibit 10.1 Robert Latta Compensation Committee Chairman [email protected] April 6, 2022 Kenneth A. Vecchione Subject: Terms of Employment Dear Ken: This letter amends and restates your May 1, 2017 offer letter with Western Alliance Bank (?WAB?) and Western Alliance Bancorporation (?WAL?) (collectively WAB and WAL are the ?Company?) and provides the terms of your continued employment in the positio

February 28, 2022 EX-1.1

Amendment No. 2 to the Distribution Agreement, dated February 28, 2022, by and between Western Alliance Bancorporation, J.P. Morgan Securities LLC and Piper Sandler & Co. (incorporated by reference to Exhibit 1.1 of Western Alliance’s Form 8-K filed with the SEC on February 28, 2022).

Exhibit 1.1 WESTERN ALLIANCE BANCORPORATION AMENDMENT NO. 2 TO DISTRIBUTION AGREEMENT February 28, 2022 Piper Sandler & Co. U.S. Bancorp Center 800 Nicollet Mall Minneapolis, Minnesota 55402 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Ladies and Gentlemen: Reference is made to the Distribution Agreement, dated June 3, 2021 (the ?Original Agreement?), as amended by Amendm

February 28, 2022 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) WESTERN ALLIANCE BANCORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry For

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) WESTERN ALLIANCE BANCORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Security(1) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee (2) Newly Registered Securities Fees to be Paid Equity Common Stock 457 (o) 3,000,000 $ 92.

February 28, 2022 424B5

Up to 3,000,000 Shares Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 PROSPECTUS SUPPLEMENT (To Prospectus dated May 14, 2021) Up to 3,000,000 Shares Common Stock We have entered into a distribution agreement, dated June 3, 2021, as amended by Amendment No. 1 on November 18, 2021 and as further amended by Amendment No. 2 on February 28, 2022, with J.P. Morgan Securities LLC and

February 28, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

February 25, 2022 EX-4.1

Description of Securities of the Registrant (incorporated by reference to Exhibit 4.1 of Western Alliance's Form 10-K filed with the SEC on February 25, 2022).

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2021, Western Alliance Bancorporation (?Western Alliance,? ?we,? ?us,? ?our,? or the ?Company?) had two classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): (i) common stock, $0.0001

February 25, 2022 EX-21.1

List of Subsidiaries of Western Alliance.

Exhibit 21.1 WESTERN ALLIANCE BANCORPORATION LIST OF SUBSIDIARIES (As of December 31, 2021) Name Doing Business As Jurisdiction of Incorporation or Organization Western Alliance Bank Alliance Bank of Arizona Bridge Bank First Independent Bank Bank of Nevada Torrey Pines Bank Alliance Association Bank Western Alliance Corporate Finance Western Alliance Public Finance Western Alliance Resort Finance

February 25, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-32550 WESTERN AL

February 11, 2022 SC 13G

WAL / Western Alliance Bancorporation / Capital International Investors - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

February 11, 2022 SC 13G

WAL / Western Alliance Bancorporation / Capital International Investors - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

February 10, 2022 SC 13G/A

WAL / Western Alliance Bancorporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Western Alliance Bancorp Title of Class of Securities: Common Stock CUSIP Number: 957638109 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is fil

February 8, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 8, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

February 4, 2022 SC 13G/A

WAL / Western Alliance Bancorporation / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

January 27, 2022 EX-99.2

EARNINGS CALL 4th Quarter 2021 JANUARY 28, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 4th Quarter 2021 JANUARY 28, 2022 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

January 27, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2022 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 27, 2022 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-January 27, 2022 FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Fourth Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $246.0 million $2.32 $325.9 million 3.33% 41.3% $43.78 $2.34, e

January 3, 2022 EX-4.1

Note Issuance and Administration Agreement, dated December 29, 2021

EXECUTION VERSION WESTERN ALLIANCE BANK as Issuer -and- COMPUTERSHARE TRUST COMPANY, N.

January 3, 2022 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 29, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

December 14, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 14, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

November 19, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

November 19, 2021 424B5

4,000,000 Shares Western Alliance Bancorporation Common stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-256120 Supplement dated November 18, 2021 To Prospectus Supplement dated June 3, 2021 (To Prospectus dated May 14, 2021) 4,000,000 Shares Western Alliance Bancorporation Common stock This supplement (this ?Supplement?) supplements the prospectus supplement, dated June 3, 2021 (the ?Prospectus Supplement?), relating to the offer and sale of shar

November 19, 2021 EX-1.1

Amendment to the Distribution Agreement, dated November 18, 2021, by and between Western Alliance Bancorporation, J.P. Morgan Securities LLC and Piper Sandler & Co. (incorporated by reference to Exhibit 1.1 of Western Alliance's Form 8-K filed with the SEC on November 19. 2021).

EX-1.1 2 d174326dex11.htm EX-1.1 Exhibit 1.1 WESTERN ALLIANCE BANCORPORATION AMENDMENT NO. 1 TO DISTRIBUTION AGREEMENT November 18, 2021 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Piper Sandler & Co. U.S. Bancorp Center 800 Nicollet Mall Minneapolis, Minnesota 55402 Ladies and Gentlemen: Reference is made to the Distribution Agreement, dated June 3, 2021 (the “Original

November 16, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

November 16, 2021 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 29, 2021, pursuant to the provisions of Rule 12d2-2 (a).

November 16, 2021 EX-99.1

Notice of Redemption to the holders of Western Alliance's 6.25% Subordinated Debentures due 2056

noticeofredemptionwal625

November 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file numbe

November 2, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 21, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 21, 2021 EX-99.2

EARNINGS CALL 3rd Quarter 2021 OCTOBER 22, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar

EARNINGS CALL 3rd Quarter 2021 OCTOBER 22, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

October 21, 2021 EX-99.1

Efficiency ratio1

EX-99.1 2 pressrelease-9302021.htm EX-99.1 Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-October 21, 2021 THIRD QUARTER 2021 FINANCIAL RESULTS Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $236.9 million $2.28 $317.1 million 3.43% 41.5% $40.49 $2.30,

September 22, 2021 8-K

Material Modification to Rights of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation)

September 22, 2021 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 WESTERN ALLIANCE BANCORPORATION (Exact name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 88-0365922 (State of incorporation or organization) (I.R.S. Employer Identification No.) One E. Washi

September 22, 2021 EX-4.1

Deposit Agreement, dated September 22, 2021, by and among Western Alliance Bancorporation, Computershare Inc. and Computershare Trust Company, N.A., and holders from time to time of Depositary Receipts described therein (incorporated by referenced to Exhibit 4.1 of Western Alliance’s Form 8-K filed with the SEC on September 22, 2021).

EX-4.1 3 d164539dex41.htm EX-4.1 Exhibit 4.1 EXECUTION VERSION DEPOSIT AGREEMENT among WESTERN ALLIANCE BANCORPORATION, and COMPUTERSHARE INC. and COMPUTERSHARE TRUST COMPANY, N.A., Jointly as Depositary, and THE HOLDERS FROM TIME TO TIME OF THE DEPOSITARY RECEIPTS DESCRIBED HEREIN Dated as of September 22, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINED TERMS 1 Section 1.1 Definitions 1 ARTICLE II

September 22, 2021 EX-3.1

Certificate of Amendment designating the 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A, effective September 22, 2021 (incorporated by reference to Exhibit 3.1 of Western Alliance's Form 8-K filed with the SEC on September 22, 2021).

Exhibit 3.1 CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF INCORPORATION OF WESTERN ALLIANCE BANCORPORATION TO: State of Delaware Division of Corporations Pursuant to the provisions of Sections 141 and 151 of the General Corporation Law of the State of Delaware, the undersigned corporation, Western Alliance Bancorporation (the ?Corporation?), executes the following Certificate of Amendment to the

September 16, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 15, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation)

September 16, 2021 EX-1.1

Underwriting Agreement, dated September 15, 2021, by and among Western Alliance Bancorporation and Morgan Stanley & Co. LLC, BofA Securities, Inc., J.P. Morgan Securities LLC and Piper Sandler & Co.

Exhibit 1.1 Western Alliance Bancorporation 12,000,000 Depositary Shares Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A Underwriting Agreement September 15, 2021 Morgan Stanley & Co. LLC BofA Securities, Inc. J.P. Morgan Securities LLC Piper Sandler & Co. As Representatives of the several Underwriters named in Schedule

September 16, 2021 424B5

Calculation of Registration Fee Title of Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1) Depositary Shares Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 Calculation of Registration Fee Title of Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1) Depositary Shares Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A $300,000,000 $32,730.00 (1) This fi

September 15, 2021 FWP

WESTERN ALLIANCE BANCORPORATION 12,000,000 Depositary Shares Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A (liquidation preference $25 per Depositary Share (equivalent to

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-256120 September 15, 2021 WESTERN ALLIANCE BANCORPORATION 12,000,000 Depositary Shares Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A (liquidation preference $25 per Depositary Share (equivalent to $10,000 per share of Preferred Stock)) Prici

September 15, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement dated September 15, 2021

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 The information contained in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell nor do they seek an offer to buy the depositary shares in any jurisdiction where the offer or sale is not permi

July 30, 2021 EX-10.3

Form of Executive Participation Agreement under the Severance and Change in Control Plan (CEO).

Exhibit 10.3 [DATE], 2021 [NAME] [ADDRESS] Dear [NAME], Re: Executive Participation Agreement Western Alliance Bancorporation Severance and Change in Control Plan Western Alliance Bancorporation (the ?Company?) has established the Western Alliance Bancorporation Severance and Change in Control Plan (the ?Plan?). The Plan provides severance payments and benefits to certain eligible executives in th

July 30, 2021 EX-10.4

Form of Executive Participation Agreement under the Severance and Change in Control Plan (non-CEO).

Exhibit 10.4 [DATE], 2021 [NAME] [ADDRESS] Dear [NAME], Re: Executive Participation Agreement Western Alliance Bancorporation Severance and Change in Control Plan Western Alliance Bancorporation (the ?Company?) has established the Western Alliance Bancorporation Severance and Change in Control Plan (the ?Plan?). The Plan provides severance payments and benefits to certain eligible executives in th

July 30, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

July 30, 2021 EX-10.2

Severance and Change in Control Plan, as amended and restated effective as of July 28, 2021.

Exhibit 10.2 WESTERN ALLIANCE BANCORPORATION SEVERANCE AND CHANGE IN CONTROL PLAN (As Amended and Restated Effective July 28, 2021) (And Summary Plan Description) ARTICLE 1. Establishment and Term of the Plan 1.1 Establishment of the Plan. The Company established the Western Alliance Bancorporation Severance and Change in Control Plan, effective September 19, 2012, which was subsequently amended a

July 27, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 15, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 15, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 15, 2021 EX-99.2

EARNINGS CALL 2nd Quarter 2021 JULY 16, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar exp

EARNINGS CALL 2nd Quarter 2021 JULY 16, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

July 15, 2021 EX-99.1

Efficiency ratio1

EX-99.1 2 pressrelease-6302021.htm EX-99.1 Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-July 15, 2021 SECOND QUARTER 2021 FINANCIAL RESULTS Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $223.8 million $2.17 $277.4 million 3.51% 44.5% $38.70 $2.29, ex

July 1, 2021 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 28, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

July 1, 2021 EX-4.1

Note Purchase Agreement, dated as of June 28, 2021

CLIFFORD CHANCE US LLP Execution Version Dated as of June 28, 2021 WESTERN ALLIANCE BANK $242,000,000.

June 16, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

June 7, 2021 EX-4.2

First Supplemental Indenture to the Subordinated Indenture for the 3.00% Fixed to Floating Rate Subordinated Notes due 2031, dated June 7, 2021, by and between the Company and U.S. Bank National Association, as trustee

EX-4.2 4 d67643dex42.htm EX-4.2 Exhibit 4.2 WESTERN ALLIANCE BANCORPORATION as Issuer AND U.S. BANK NATIONAL ASSOCIATION as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of June 7, 2021 TO SUBORDINATED DEBT INDENTURE DATED AS OF JUNE 7, 2021 3.00% Fixed to Floating Rate Subordinated Notes due 2031 TABLE OF CONTENTS Page ARTICLE I APPLICATION OF FIRST SUPPLEMENTAL INDENTURE; DEFINITIONS 1 Section 1

June 7, 2021 EX-1.1

Underwriting Agreement, dated June 3, 2021, by and among the Company and the Representatives named therein

Exhibit 1.1 Execution Copy $600,000,000 Aggregate Principal Amount of 3.00% Fixed-to-Floating Rate Subordinated Notes due 2031 WESTERN ALLIANCE BANCORPORATION UNDERWRITING AGREEMENT June 3, 2021 Piper Sandler & Co. J.P. Morgan Securities LLC As Representatives of the several Underwriters c/o Piper Sandler & Co. 1251 Avenue of the Americas, 6th Floor New York, New York 10022 c/o J.P. Morgan Securit

June 7, 2021 EX-4.1

Subordinated Debt Indenture, dated as of June 7, 2021, by and between the Company and U.S. Bank National Association, as trustee

Exhibit 4.1 WESTERN ALLIANCE BANCORPORATION, Issuer to U.S. BANK NATIONAL ASSOCIATION Trustee SUBORDINATED DEBT INDENTURE Dated as of June 7, 2021 Subordinated Debt Securities Reconciliation and tie between Trust Indenture Act of 1939 (the ?Trust Indenture Act?) and Indenture Trust Indenture Act Section Indenture Section ?310(a)(1) 607 (a)(2) 607 (b) 608 ?312(a) 701 (b) 702 (c) 702 ?313(a) 703 (b)

June 7, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 7, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

June 4, 2021 424B5

Calculation of Registration Fee Title of Class of Securities Offered Amount to be Registered Maximum Offering Price Per Unit Maximum Aggregate Offering Price Amount of Registration Fee 3.00% Fixed to Floating Rate Subordinated Notes due 2031 $600,000

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 Calculation of Registration Fee Title of Class of Securities Offered Amount to be Registered Maximum Offering Price Per Unit Maximum Aggregate Offering Price Amount of Registration Fee 3.00% Fixed to Floating Rate Subordinated Notes due 2031 $600,000,000 100% $600,000,000 $65,460.00(1) (1) This filing fee is c

June 4, 2021 FWP

Western Alliance Bancorporation 3.00% Fixed to Floating Rate Subordinated Notes due 2031 Term Sheet Issuer: Western Alliance Bancorporation (the “Company”) Security: 3.00% Fixed to Floating Rate Subordinated Notes due 2031 (the “Notes”) Aggregate Pri

Free Writing Prospectus Filed pursuant to Rule 433 Supplementing the Preliminary Prospectus Supplement, dated June 3, 2021 Registration No.

June 4, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 3, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

June 3, 2021 EX-1.1

Distribution Agreement, dated June 3, 2021, by and between Western Alliance Bancorporation and J.P. Morgan Securities LLC.

Exhibit 1.1 DISTRIBUTION AGREEMENT June 3, 2021 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Ladies and Gentlemen: Western Alliance Bancorporation, a Delaware corporation (the ?Company?), confirms its agreement with J.P. Morgan Securities LLC, as agent and/or principal under any Terms Agreement (as defined in Section 1(a) below) (?you? or the ?Agent?), with respect to the

June 3, 2021 FWP

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-256120 June 3, 2021 INVESTOR PRESENTATION JUNE 3, 2021Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-256120 June 3, 2021 INVESTOR PRESENTAT

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-256120 June 3, 2021 INVESTOR PRESENTATION JUNE 3, 2021Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-256120 June 3, 2021 INVESTOR PRESENTATION JUNE 3, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, f

June 3, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement dated June 3, 2021

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 The information contained in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell nor do they seek an offer to buy the subordinated notes in any jurisdiction where the offer or sale is not perm

June 3, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price Per Security(2) Proposed Maximum Aggregate Offering Price(2) Amount of Registration Fee(3) Common stock, par

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-256120 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price Per Security(2) Proposed Maximum Aggregate Offering Price(2) Amount of Registration Fee(3) Common stock, par value $0.0001 per share 4,000,000 $96.80 $387,200,000.00 $42

June 3, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 3, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

June 1, 2021 EX-99.1

Investment Highlights Seasoned Leadership Team Diversified Business Model – Sustainable Across Market Cycles Diverse, High Quality Loan Portfolio Conservative Credit Culture – Superior Asset Quality Stable, Low-Cost Deposit Franchise Well Capitalized

EX-99.1 2 d153119dex991.htm EX-99.1 Exhibit 99.1 INVESTOR CALL PRESENTATION JUNE 1, 2021Exhibit 99.1 INVESTOR CALL PRESENTATION JUNE 1, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical fa

June 1, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Commi

May 14, 2021 EX-99.1

Cover AMERIHOME MORTGAGE COMPANY, LLC CONSOLIDATED FINANCIAL STATEMENTS Years ended December 31, 2020 and 2019 AmeriHome Mortgage Company, LLC Index to Consolidated Financial Statements Table of Contents Page Consolidated Balance Sheet 3 Consolidated

EX-99.1 3 amerihome20inancialstate.htm EX-99.1 Cover AMERIHOME MORTGAGE COMPANY, LLC CONSOLIDATED FINANCIAL STATEMENTS Years ended December 31, 2020 and 2019 AmeriHome Mortgage Company, LLC Index to Consolidated Financial Statements Table of Contents Page Consolidated Balance Sheet 3 Consolidated Statement of Income 4 Consolidated Statement of Changes in Members’ Equity 5 Consolidated Statement of

May 14, 2021 EX-99.2

WESTERN ALLIANCE BANCORPORATION AND SUBSIDIARIES UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS

Exhibit 99.2 WESTERN ALLIANCE BANCORPORATION AND SUBSIDIARIES UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS Summary of Transaction On April 7, 2021, Western Alliance Bancorporation (?WAL? or the ?Company?), completed its previously announced acquisition (the "Acquisition") of Aris Mortgage Holding Company, LLC, (?Aris?), the parent company of AmeriHome Mortgage Company, LLC (?AmeriHome? or ?AH

May 14, 2021 S-3ASR

As filed with the Securities and Exchange Commission on May 14, 2021

As filed with the Securities and Exchange Commission on May 14, 2021 Registration No.

May 14, 2021 8-K/A

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 14, 2021 (April 7, 2021) WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other j

May 4, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definit

April 30, 2021 DEF 14A

definitive proxy statement

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

April 30, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definit

April 30, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 0

April 27, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 15, 2021 EX-99.1

Efficiency ratio1

EX-99.1 2 pressrelease-3312021.htm EX-99.1 Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-April 15, 2021 FIRST QUARTER 2021 FINANCIAL RESULTS Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $192.5 million $1.90 $202.0 million 3.37% 39.1% $35.89 $33.021,

April 15, 2021 EX-99.2

EARNINGS CALL 1st Quarter 2021 APRIL 16, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar ex

EX-99.2 3 walq12021earningspresent.htm EX-99.2 EARNINGS CALL 1st Quarter 2021 APRIL 16, 2021 Forward-Looking Statements This presentation contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts. Examples of forward-looking statements incl

April 15, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Com

April 7, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (Comm

April 7, 2021 EX-99.1

Western Alliance Completes Previously Announced AmeriHome Mortgage Company Transaction

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE MEDIA: Robyn Young April 7, 2021 Chief Marketing Officer [email protected] INVESTORS: Dale Gibbons Chief Financial Officer [email protected] Western Alliance Completes Previously Announced AmeriHome Mortgage Company Transaction PHOENIX-Western Alliance Bancorporation (“Western Alliance”) (NYSE: WAL) today announced it has

March 4, 2021 EX-10.1

Form of Securities Purchase Agreement dated February 28, 2021*

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT WESTERN ALLIANCE BANCORPORATION Common Stock, par value $0.0001 per share This SECURITIES PURCHASE AGREEMENT (the ?Agreement?) is made and entered into as of February 28, 2021, by and between Western Alliance Bancorporation, a Delaware corporation (the ?Company?), and each purchaser identified on the signature pages hereto (each, an ?Investor? and collect

March 4, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

March 4, 2021 EX-99.1

Western Alliance Bancorporation Announces Pricing of 2.3 Million Shares of Common Stock

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE MEDIA: Robyn Young March 1, 2021 Chief Marketing Officer [email protected] INVESTORS: Dale Gibbons Chief Financial Officer (602) 952-5476 Western Alliance Bancorporation Announces Pricing of 2.3 Million Shares of Common Stock PHOENIX-Western Alliance Bancorporation (“Western Alliance”) (NYSE: WAL) today announced the pricing of 2.3 milli

March 1, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Security Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) Common stock, par value $

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No.

February 25, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-32550 WESTERN AL

February 25, 2021 EX-21.1

List of Subsidiaries of Western Alliance.

Exhibit 21.1 WESTERN ALLIANCE BANCORPORATION LIST OF SUBSIDIARIES (As of December 31, 2020) Name Doing Business As Jurisdiction of Incorporation or Organization Western Alliance Bank Alliance Bank of Arizona Bridge Bank First Independent Bank Bank of Nevada Torrey Pines Bank Alliance Association Bank Western Alliance Corporate Finance Western Alliance Public Finance Western Alliance Resort Finance

February 16, 2021 EX-99.1

Western Alliance to Acquire AmeriHome, a Leading National B2B Mortgage Acquirer & Servicer Extends WAL’s National Commercial Bank Strategy with correspondent mortgage platform that enhances growth, returns and diversification

NEWS RELEASE FOR IMMEDIATE RELEASE INVESTORS: Dale Gibbons MEDIA: Robyn Young February 16, 2021 Chief Financial Officer Chief Marketing Officer (602) 952-5476 ryoung@westernalliancebank.

February 16, 2021 EX-99.2

C o p y r i g h t © 2 0 2 1 W e s t e r n A l l i a n c e B a n c o r p o r a t i o n . A l l R i g h t s R e s e r v e d . F e b r u a r y 1 6 , 2 0 2 1 WESTERN ALLIANCE TO ACQUIRE AMERIHOME February 16th, 2021 Forward-Looking Statements This presen

C o p y r i g h t ? 2 0 2 1 W e s t e r n A l l i a n c e B a n c o r p o r a t i o n .

February 16, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (

February 16, 2021 EX-2.1

Agreement and Plan of Merger, dated February 16, 2021, by and among Western Alliance Bank, Western Alliance Equipment Finance, Inc., WAB Mortgage Sub, LLC, Aris Mortgage Holding Company, LLC, A-A Mortgage Opportunities, LP, and the individual members set forth on the signature page thereto

AGREEMENT AND PLAN OF MERGER BY AND AMONG WESTERN ALLIANCE BANK, WESTERN ALLIANCE EQUIPMENT FINANCE, INC.

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Western Alliance Bancorp Title of Class of Securities: Common Stock CUSIP Number: 957638109 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is fil

February 9, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 9, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

February 4, 2021 SC 13G

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Western Alliance Bancorporation (Name of Issuer) Common Stock (Title of Class of Securities) 957638109 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

January 21, 2021 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-January 21, 2021 FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $193.6 million $1.93 $206.4 million 3.84% 38.2% $33.85 $30.901, excluding goodwill and int

January 21, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

January 21, 2021 EX-99.2

EARNINGS CALL 4th QUARTER 2020 January 22, 2020 2 2 This release contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matte

walq42020earningspresent EARNINGS CALL 4th QUARTER 2020 January 22, 2020 2 2 This release contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

January 19, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2021 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 30, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file numbe

October 30, 2020 8-K

- 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2020 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

October 22, 2020 EX-99.2

EARNINGS CALL 3rd QUARTER 2020 October 23, 2020 Forward-Looking Statements This release contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expre

walq32020earningspresent EARNINGS CALL 3rd QUARTER 2020 October 23, 2020 Forward-Looking Statements This release contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts.

October 22, 2020 EX-99.1

Efficiency ratio1

Western Alliance Bancorporation One East Washington Street Phoenix, AZ 85004 www.westernalliancebancorporation.com PHOENIX-(BUSINESS WIRE)-October 22, 2020 THIRD QUARTER 2020 FINANCIAL RESULTS Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $135.8 million $1.36 $181.3 million 3.71% 39.7% $31.98 $29.031, excluding goodwill and intangibles CEO CO

October 22, 2020 8-K

- 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2020 WESTERN ALLIANCE BANCORPORATION (Exact name of registrant as specified in its charter) Delaware 001-32550 88-0365922 (State or other jurisdiction of incorporation) (C

July 31, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 00

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