Pinnacle West director granted 1,665 stock units

Svinicki Kristine L reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Svinicki Kristine L reported acquisition or exercise transactions in this Form 4 filing.

Pinnacle West Capital Corp director Kristine L. Svinicki received an equity award of 1,665 Stock Units, each economically equivalent to one share of Pinnacle West common stock. The units vested on May 14, 2026 and will be settled in common shares.

Svinicki elected to defer settlement until the last business day of the month following the month in which she separates from service with the company. After this grant, she holds 1,665 Stock Units directly as reported in this filing.

Insider Trade Summary

Grant/Award: 1,665 shares

Grant/Award 1 txn

Insider Svinicki Kristine L

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Units	1,665	$0.00	$0.00

Holdings After Transaction: Stock Units — 1,665 contracts (Direct)

Footnotes (1)

1. F1. Each Stock Unit is the economic equivalent of one share of Pinnacle West common stock. The Stock Units vested on May 14, 2026 and will be settled in shares of common stock. The reporting person elected to defer settlement until the last business day of the month following the month in which the reporting person separates from service from the Company.

Key Figures

Stock Units granted: 1,665 units Price per unit: $0.00 Units after transaction: 1,665 units +2 more

5 metrics

Stock Units granted 1,665 units Equity award to director Kristine L. Svinicki

Price per unit $0.00 Grant price for Stock Units

Units after transaction 1,665 units Total Stock Units held following grant

Underlying common shares 1,665 shares Common stock underlying the Stock Units

Vesting date May 14, 2026 Date on which Stock Units vested

Key Terms

Stock Units, economic equivalent, settled in shares of common stock, defer settlement

4 terms

Stock Units financial

"Each Stock Unit is the economic equivalent of one share of Pinnacle West common stock."

Stock units are individual pieces of ownership in a company, like slices of a pie that together make up the whole business. They matter to investors because each unit represents a claim on the company’s assets, profits and sometimes voting power, and changes in the number or value of these units affect ownership percentages, potential dividends and share dilution — all of which influence an investment’s worth.

economic equivalent financial

"Each Stock Unit is the economic equivalent of one share of Pinnacle West common stock."

settled in shares of common stock financial

"The Stock Units vested on May 14, 2026 and will be settled in shares of common stock."

defer settlement financial

"The reporting person elected to defer settlement until the last business day of the month following the month in which the reporting person separates from service from the Company."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Pinnacle West (PNW) director Kristine L. Svinicki report on this Form 4?

Director Kristine L. Svinicki reported receiving 1,665 Stock Units as an equity award. Each unit is economically equivalent to one share of Pinnacle West common stock and will ultimately be settled in shares.

How many Pinnacle West (PNW) Stock Units were granted to Kristine L. Svinicki?

She was granted 1,665 Stock Units. These units are derivative securities that mirror the value of Pinnacle West common stock and are scheduled to be settled in an equal number of common shares in the future.

When do Kristine L. Svinicki’s Pinnacle West (PNW) Stock Units vest and settle?

The 1,665 Stock Units vested on May 14, 2026 and will be settled in shares of common stock. Settlement occurs after she separates from service, based on the deferral election described in the filing footnote.

How did Kristine L. Svinicki structure the payout timing of her Pinnacle West (PNW) Stock Units?

She elected to defer settlement of the Stock Units until the last business day of the month following the month in which she separates from service. This deferral choice affects when she actually receives the common shares.

What is the economic relationship between the Stock Units and Pinnacle West (PNW) common stock?

Each Stock Unit is the economic equivalent of one share of Pinnacle West common stock. Upon settlement, the units will be paid out in shares, aligning the award’s value directly with the company’s stock price.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 04:44 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Svinicki Kristine L

(Last) (First) (Middle)

400 N. 5TH STREET

(Street)

PHOENIX ARIZONA 85004

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PINNACLE WEST CAPITAL CORP [ PNW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Units	(1)	05/14/2026		A		1,665		(1)	(1)	Common Stock	1,665	(1)	1,665	D

Explanation of Responses:

1. Each Stock Unit is the economic equivalent of one share of Pinnacle West common stock. The Stock Units vested on May 14, 2026 and will be settled in shares of common stock. The reporting person elected to defer settlement until the last business day of the month following the month in which the reporting person separates from service from the Company.

Remarks:

	/s/ Melissa Sallee, Attorney-in-Fact	05/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)