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Nachlas Emily

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SEC CIK
0001946843

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Reported relationships

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CompanyLast reported asReport datePublished
WESTERN ALLIANCE BANCORPORATIONWAL · Entity 3616Chief Risk OfficerSeptember 15, 2026September 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

WESTERN ALLIANCE BANCORPORATION

Report date September 15, 2026 · Filed September 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect16,575 Ending reported balance After 2026-09-15 transaction · row 6
6 source rows · reconciled sequence

Row 1 · 2026-09-15 · Exercise / conversion · Acquired 72 · Balance 16,647

F1: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Row 2 · 2026-09-15 · Disposition to issuer · Disposed 72 · Balance 16,575

Row 3 · 2026-09-15 · Exercise / conversion · Acquired 53 · Balance 16,628

F3: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Row 4 · 2026-09-15 · Disposition to issuer · Disposed 53 · Balance 16,575

Row 5 · 2026-09-15 · Exercise / conversion · Acquired 64 · Balance 16,639

F4: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2026 and ending February 2029.

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Row 6 · 2026-09-15 · Disposition to issuer · Disposed 64 · Balance 16,575

Cash Settled Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect357 Reported balance After 2026-09-15 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-09-15 · Exercise / conversion · Disposed 72 · Balance 357

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Cash Settled Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect896 Reported balance After 2026-09-15 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2026-09-15 · Exercise / conversion · Disposed 53 · Balance 896

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Cash Settled Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect1,857 Reported balance After 2026-09-15 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2026-09-15 · Exercise / conversion · Disposed 64 · Balance 1,857

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F4: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2026 and ending February 2029.

Filing footnotes · ownership attribution and instrument terms

F1: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F4: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2026 and ending February 2029.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 15, 2025 Filed Sep 17, 2025 21:25 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001946843-25-000004 · wk-form4_1758144341.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,221

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 21:25 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $89.05 $4,719.65
Disclosure

SEC source: 0001946843-25-000004 · wk-form4_1758144341.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
September 15, 2025 Filed Sep 17, 2025 21:25 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001946843-25-000004 · wk-form4_1758144341.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 21:25 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $89.05 $6,411.60
Disclosure

SEC source: 0001946843-25-000004 · wk-form4_1758144341.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
September 15, 2025 Filed Sep 17, 2025 21:25 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001946843-25-000004 · wk-form4_1758144341.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,585

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,293

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $82.55 $4,375.15
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $82.55 $5,943.60
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
August 15, 2025 Filed Aug 18, 2025 21:34 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000231 · wk-form4_1755552846.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,638

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,365

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $80.99 $4,292.47
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $80.99 $5,831.28
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
July 15, 2025 Filed Jul 17, 2025 21:01 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000201 · wk-form4_1752786088.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,691

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,437

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $71.29 $3,778.37
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $71.29 $5,132.88
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
June 15, 2025 Filed Jun 17, 2025 21:10 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000177 · wk-form4_1750194608.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,744

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,509

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $78.36 $4,153.08
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $78.36 $5,641.92
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
May 15, 2025 Filed May 19, 2025 21:21 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000153 · wk-form4_1747689673.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,797

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,581

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $66.07 $3,501.71
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $66.07 $4,757.04
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
April 15, 2025 Filed Apr 17, 2025 21:12 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000131 · wk-form4_1744924370.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 53 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · derivative · entry 6

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,850

Underlying: Common Stock · 53 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F3 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F3 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · derivative · entry 5

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,653

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 53 $77.24 $4,093.72
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · nonDerivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 53 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $77.24 $5,561.28
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:14 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000105 · wk-form4_1742332438.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
February 16, 2025 Filed Feb 19, 2025 21:24 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Tax withholdingCommon Stock 197 $88.75 $17,483.75
Disclosure

SEC source: 0001212545-25-000083 · wk-form4_1740000250.xml · nonDerivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,671

Read SEC document
February 15, 2025 Filed Feb 19, 2025 21:24 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000083 · wk-form4_1740000250.xml · derivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,725

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document
February 15, 2025 Filed Feb 19, 2025 21:24 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Disposition to issuerCommon Stock 72 $88.75 $6,390.00
Disclosure

SEC source: 0001212545-25-000083 · wk-form4_1740000250.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,868

Read SEC document
February 15, 2025 Filed Feb 19, 2025 21:24 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCommon Stock 72 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000083 · wk-form4_1740000250.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,940

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

Read SEC document
February 07, 2025 Filed Feb 10, 2025 22:36 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Tax withholdingCommon Stock 486 $89.89 $43,686.54
Disclosure

SEC source: 0001212545-25-000065 · wk-form4_1739226991.xml · nonDerivative · entry 2

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,868

Read SEC document
February 06, 2025 Filed Feb 10, 2025 22:36 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 GrantRestricted Stock Units · Derivative 828 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000065 · wk-form4_1739226991.xml · derivative · entry 4

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,050

Underlying: Common Stock · 828 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of WAL common stock.

F4 · derivative.exercise_date: The restricted stock units are payable upon the Reporting Person's Qualified Retirement from the Company as described in the Plan documents.

F4 · derivative.expiration_date: The restricted stock units are payable upon the Reporting Person's Qualified Retirement from the Company as described in the Plan documents.

F5 · balance_after: The number of restricted stock units beneficially owned by the reporting person following the transaction includes the reinvestment of WAL's quarterly dividends, which resulted in an additional 35 restricted stock units.

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February 06, 2025 Filed Feb 10, 2025 22:36 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 GrantCash Settled Restricted Stock Units · Derivative 1,903 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000065 · wk-form4_1739226991.xml · derivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,903

Underlying: Common Stock · 1,903 shares

Expires not disclosed

F1 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning February 2025 and ending January 2028.

F2 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning February 2025 and ending January 2028.

F2 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning February 2025 and ending January 2028.

Read SEC document
February 06, 2025 Filed Feb 10, 2025 22:36 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 GrantCommon Stock 1,270 $0.00 $0.00
Disclosure

SEC source: 0001212545-25-000065 · wk-form4_1739226991.xml · nonDerivative · entry 1

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,354

Read SEC document
January 15, 2025 Filed Jan 17, 2025 21:13 UTC WESTERN ALLIANCE BANCORPORATION WAL · Entity 3616 Exercise / conversionCash Settled Restricted Stock Units · Derivative 72 Not disclosed Not disclosed
Disclosure

SEC source: 0001212545-25-000013 · wk-form4_1737148402.xml · derivative · entry 3

Nachlas Emily · CIK 0001946843 · Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,797

Underlying: Common Stock · 72 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F2 · price: Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

F1 · derivative.exercise_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

F1 · derivative.expiration_date: These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.