HERNDON LYNNE (Chief Credit Officer) exercised options at WESTERN ALLIANCE BANCORPORATION

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 3 exercises

HERNDON LYNNE

Filed: 6/17/2026ACC: 0001628280-26-044003

InsiderHERNDON LYNNECIK 2007542

→

IssuerWESTERN ALLIANCE BANCORPORATIONCIK 1212545

Officer· Chief Credit Officer

Since Feb 2026

-84.00

Net shares

Net seller

$6.9K

Total sold

Open market trades

0B · 0S

Total transactions

84.00 acquired · 168.00 disposed

Non-Derivative Transactions6

Common Stock

Direct

M · Option Exercise

+35.00

Price / share

—

Trade value

—

% of position

1.9%

6/15/2026

1.88K→1.92K

Common Stock

Direct

D · Disposition

−35.00

Price / share

$81.81

Trade value

$2.86K

% of position

1.8%

6/15/2026

1.92K→1.88K

Common Stock

Direct

M · Option Exercise

+22.00

Price / share

—

Trade value

—

% of position

1.2%

6/15/2026

1.88K→1.90K

Common Stock

Direct

D · Disposition

−22.00

Price / share

$81.81

Trade value

$1.80K

% of position

1.2%

6/15/2026

1.90K→1.88K

Common Stock

Direct

M · Option Exercise

+27.00

Price / share

—

Trade value

—

% of position

1.4%

6/15/2026

1.88K→1.91K

Common Stock

Direct

D · Disposition

−27.00

Price / share

$81.81

Trade value

$2.21K

% of position

1.4%

6/15/2026

1.91K→1.88K

Total

Net shares

+0.00

Net value

-$6.87K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/15/2026	M · Option Exercise	+35.00	—	—	1.9%	1.88K	1.92K
Common Stock Direct	6/15/2026	D · Disposition	−35.00	$81.81	$2.86K	1.8%	1.92K	1.88K
Common Stock Direct	6/15/2026	M · Option Exercise	+22.00	—	—	1.2%	1.88K	1.90K
Common Stock Direct	6/15/2026	D · Disposition	−22.00	$81.81	$1.80K	1.2%	1.90K	1.88K
Common Stock Direct	6/15/2026	M · Option Exercise	+27.00	—	—	1.4%	1.88K	1.91K
Common Stock Direct	6/15/2026	D · Disposition	−27.00	$81.81	$2.21K	1.4%	1.91K	1.88K
Total			+0.00		-$6.87K

Derivative Transactions3

Cash Settled Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

35.00 shares

−35.00

Strike price

Held after

262.00

Exercisable

—

6/15/2026

Cash Settled Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

22.00 shares

−22.00

Strike price

Held after

442.00

Exercisable

—

6/15/2026

Cash Settled Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

27.00 shares

−27.00

Strike price

Held after

879.00

Exercisable

—

6/15/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Cash Settled Restricted Stock Units Direct	Common Stock35.00 shares	6/15/2026	M · Option Exercise	−35.00	—	262.00
Cash Settled Restricted Stock Units Direct	Common Stock22.00 shares	6/15/2026	M · Option Exercise	−22.00	—	442.00
Cash Settled Restricted Stock Units Direct	Common Stock27.00 shares	6/15/2026	M · Option Exercise	−27.00	—	879.00