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PINNACLE WEST CAPITAL CORP·4

Feb 24, 6:11 PM ET

Cooper Andrew D 4

4 · PINNACLE WEST CAPITAL CORP · Filed Feb 24, 2026

Insider Transaction Report

Form 4
Period: 2026-02-20
PINNACLE WEST CAPITAL CORPPNW
Cooper Andrew D
SVP & CFO
Transactions
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-02-20+490→ 15,997 total
  • Disposition to Issuer

    Common Stock

    [F2]
    2026-02-20$98.34/sh−81$7,966→ 15,916 total
  • Tax Payment

    Common Stock

    [F3]
    2026-02-20$98.34/sh−172$16,914→ 15,744 total
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-02-20+998→ 16,742 total
  • Disposition to Issuer

    Common Stock

    [F2]
    2026-02-20$98.34/sh−150$14,751→ 16,592 total
  • Tax Payment

    Common Stock

    [F3]
    2026-02-20$98.34/sh−357$35,107→ 16,235 total
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-02-20+1,880→ 18,115 total
  • Disposition to Issuer

    Common Stock

    [F2]
    2026-02-20$98.34/sh−227$22,323→ 17,888 total
  • Tax Payment

    Common Stock

    [F3]
    2026-02-20$98.34/sh−692$68,051→ 17,196 total
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-02-20+2,435→ 19,631 total
  • Disposition to Issuer

    Common Stock

    [F2]
    2026-02-20$98.34/sh−191$18,783→ 19,440 total
  • Tax Payment

    Common Stock

    [F3]
    2026-02-20$98.34/sh−940$92,440→ 18,500 total
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-02-20+1,968→ 20,468 total
  • Disposition to Issuer

    Common Stock

    [F2]
    2026-02-20$98.34/sh−76$7,474→ 20,392 total
  • Tax Payment

    Common Stock

    [F3]
    2026-02-20$98.34/sh−792$77,885→ 19,600 total
  • Exercise/Conversion

    Restricted Stock Units

    [F1][F4][F5]
    2026-02-20+490→ 0 total
    → Common Stock (490 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    [F1][F6][F7]
    2026-02-20+998→ 0 total
    → Common Stock (998 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    [F1][F8][F9][F10]
    2026-02-20+1,880→ 1,873 total
    → Common Stock (1,880 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    [F1][F11][F12][F13]
    2026-02-20+2,435→ 4,870 total
    → Common Stock (2,435 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    [F1][F14][F15][F16]
    2026-02-20+1,968→ 5,902 total
    → Common Stock (1,968 underlying)
Footnotes (16)
  • [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.
  • [F10]Includes 220 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
  • [F11]The number of derivative securities in Column 5 includes 191 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.
  • [F12]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.
  • [F13]Includes 382 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
  • [F14]The number of derivative securities in Column 5 includes 76 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.
  • [F15]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.
  • [F16]Includes 226 Restricted Stock Units received in connection with the settlement of dividend equivalent rights.
  • [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 number of derivative securities in Column 5 includes 81 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.
  • [F5]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.
  • [F6]The number of derivative securities in Column 5 includes 150 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.
  • [F7]The Restricted Stock Units award was granted and was effective in May 2022, and vests in four equal, annual installments beginning on February 20, 2023.
  • [F8]The number of derivative securities in Column 5 includes 227 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.
  • [F9]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.
Signature
/s/ Melissa Sallee, Attorney-in-Fact|2026-02-24

Documents

1 file
  • 4
    wk-form4_1771974675.xmlPrimary

    FORM 4