Theodore N. Geisler - 20 Feb 2026 Form 4 Insider Report for PINNACLE WEST CAPITAL CORP (PNW)

Signature
/s/ Melissa Sallee, Attorney-in-Fact
Issuer symbol
PNW
Transactions as of
20 Feb 2026
Net transactions value
-$462,198
Form type
4
Filing time
24 Feb 2026, 20:08:47 UTC
Previous filing
19 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Geisler Theodore N Chairman, CEO and President, Director 400 N. 5TH STREET, PHOENIX /s/ Melissa Sallee, Attorney-in-Fact 24 Feb 2026 0001799703

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PNW Common Stock Options Exercise +2,248 2,248 20 Feb 2026 Direct F1
transaction PNW Common Stock Disposed to Issuer $35,501 -361 -16% $98.34 1,887 20 Feb 2026 Direct F2
transaction PNW Common Stock Tax liability $77,689 -790 -42% $98.34 1,097 20 Feb 2026 Direct F3
transaction PNW Common Stock Options Exercise +1,634 +149% 2,731 20 Feb 2026 Direct F1
transaction PNW Common Stock Disposed to Issuer $18,881 -192 -7% $98.34 2,539 20 Feb 2026 Direct F2
transaction PNW Common Stock Tax liability $59,397 -604 -24% $98.34 1,935 20 Feb 2026 Direct F3
transaction PNW Common Stock Options Exercise +1,943 +100% 3,878 20 Feb 2026 Direct F1
transaction PNW Common Stock Disposed to Issuer $14,948 -152 -3.9% $98.34 3,726 20 Feb 2026 Direct F2
transaction PNW Common Stock Tax liability $73,755 -750 -20% $98.34 2,976 20 Feb 2026 Direct F3
transaction PNW Common Stock Options Exercise +1,736 +58% 4,712 20 Feb 2026 Direct F1
transaction PNW Common Stock Disposed to Issuer $6,589 -67 -1.4% $98.34 4,645 20 Feb 2026 Direct F2
transaction PNW Common Stock Tax liability $68,740 -699 -15% $98.34 3,946 20 Feb 2026 Direct F3
transaction PNW Common Stock Options Exercise +2,458 +62% 6,404 20 Feb 2026 Direct F1
transaction PNW Common Stock Disposed to Issuer $9,441 -96 -1.5% $98.34 6,308 20 Feb 2026 Direct F2
transaction PNW Common Stock Tax liability $97,258 -989 -16% $98.34 5,319 20 Feb 2026 Direct F3
transaction PNW Common Stock Gift -5,319 -100% 0 20 Feb 2026 Direct F4
transaction PNW Common Stock Gift +5,319 +16% 37,567 20 Feb 2026 by Trust F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction PNW Restricted Stock Units Options Exercise -2,248 -100% 0 20 Feb 2026 Common Stock 2,248 Direct F1, F5, F6
transaction PNW Restricted Stock Units Options Exercise -1,634 -50% 1,638 20 Feb 2026 Common Stock 1,634 Direct F1, F7, F8, F9
transaction PNW Restricted Stock Units Options Exercise -1,943 -33% 3,885 20 Feb 2026 Common Stock 1,943 Direct F1, F10, F11, F12
transaction PNW Restricted Stock Units Options Exercise -1,736 -25% 5,208 20 Feb 2026 Common Stock 1,736 Direct F1, F13, F14, F15
transaction PNW Restricted Stock Units Options Exercise -2,458 -25% 7,369 20 Feb 2026 Common Stock 2,458 Direct F1, F16, F17, F18
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in 100% shares of common stock.
F2 Represents the cash settlement of Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
F3 Shares retained by the Company for purpose of meeting tax withholding requirements. The recipient retained all other shares.
F4 The reporting person gifted the shares received on February 20, 2026 to a revocable family trust.
F5 The number of derivative securities in Column 5 includes 361 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.
F6 The Restricted Stock Units award was granted and was effective in February 2022, and vests in four equal, annual installments beginning on February 20, 2023.
F7 The number of derivative securities in Column 5 includes 192 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.
F8 The Restricted Stock Units award was granted and was effective in February 2023, and vests in four equal, annual installments beginning on February 20, 2024.
F9 Includes 196 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
F10 The number of derivative securities in Column 5 includes 152 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.
F11 The Restricted Stock Units award was granted and was effective in February 2024, and vests in four equal, annual installments beginning on February 20, 2025.
F12 Includes 303 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
F13 The number of derivative securities in Column 5 includes 67 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.
F14 The Restricted Stock Units award was granted and was effective in February 2025, and vests in four equal, annual installments beginning on February 20, 2026.
F15 Includes 201 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
F16 The number of derivative securities in Column 5 includes 96 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.
F17 The Restricted Stock Units award was granted and was effective in April 2025, and vests in four equal, annual installments beginning on February 20, 2026.
F18 The number of derivative securities in Column 5 includes 283 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock.