Pinnacle West director receives 1,665-share stock grant

Sims Paula J reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Sims Paula J reported acquisition or exercise transactions in this Form 4 filing.

Pinnacle West Capital director Paula J. Sims received a grant of company stock. On the reported date, she was awarded 1,665 shares of Pinnacle West Capital common stock at an indicated value of $99.77 per share as a compensation-related grant. Following this award, she directly owns 11,032 common shares.

Insider Trade Summary

Grant/Award: 1,665 shares

Grant/Award 1 txn

Insider Sims Paula J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,665	$99.77	$166K

Holdings After Transaction: Common Stock — 11,032 shares (Direct)

Key Figures

Shares granted: 1,665 shares Grant value per share: $99.77 per share Shares held after grant: 11,032 shares

3 metrics

Shares granted 1,665 shares Non-derivative stock grant to director Paula J. Sims

Grant value per share $99.77 per share Indicated value for common stock grant

Shares held after grant 11,032 shares Direct ownership following reported transaction

Key Terms

Grant, award, or other acquisition, Common Stock, non-derivative, direct ownership

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

non-derivative financial

"transaction_type: non-derivative"

direct ownership financial

"ownership_type: direct"

FAQ

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

What insider transaction did Pinnacle West Capital (PNW) report for Paula J. Sims?

Pinnacle West Capital reported that director Paula J. Sims received a grant of 1,665 shares of common stock. The transaction is classified as a grant, award, or other acquisition rather than an open-market purchase or sale.

Was Paula J. Sims buying or selling PNW shares in this Form 4 filing?

Paula J. Sims was not buying or selling shares on the open market. The Form 4 shows an acquisition coded as a grant, award, or other acquisition of 1,665 Pinnacle West Capital common shares, which is a compensation-related transaction.

At what price was Paula J. Sims’ Pinnacle West Capital stock grant valued?

The stock grant to Paula J. Sims was valued at $99.77 per share. This price is used in the Form 4 to indicate the value of the 1,665 Pinnacle West Capital common shares received in the compensation-related award.

How many Pinnacle West Capital (PNW) shares does Paula J. Sims hold after this grant?

After receiving the 1,665-share grant, Paula J. Sims directly holds 11,032 shares of Pinnacle West Capital common stock. This total reflects her direct ownership position following the reported compensation-related stock award.

Is the Paula J. Sims Form 4 transaction in PNW common stock a derivative exercise?

No, the reported transaction is not a derivative exercise. The Form 4 classifies it as a non-derivative acquisition of common stock, specifically a grant, award, or other acquisition of 1,665 Pinnacle West Capital common shares.

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

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Accepted by SEC EDGAR 05/18/2026 - 04:45 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^*

Sims Paula J

(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
Common Stock	05/14/2026		A		1,665	A	$99.77	11,032	D

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

Explanation of Responses:

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)