Stratus CEO reports small tax share withholding

Stratus Properties Inc. director and CEO William H. Armstrong III reported a small tax-related share disposition.

Rhea-AI Filing Summary

Stratus Properties Inc. director and CEO William H. Armstrong III reported a small tax-related share disposition. On the vesting of Common Stock restricted stock units, 984 shares of Common Stock were withheld at a price of $32.34 per share to cover taxes, rather than sold in the open market.

After this withholding, Armstrong beneficially owns 683,872 shares directly, which include 37,691 restricted stock units, and 3,250 shares indirectly through an IRA for his benefit. The filing reflects routine equity compensation and tax settlement activity, not a discretionary share sale.

Insider Trade Summary

Exercise Price or Tax Liability: 984 shares

Exercise Price or Tax Liability 2 txns

Insider ARMSTRONG WILLIAM H III

Role Chair of Board, President, CEO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	984	$32.34	$32K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 683,872 shares (Direct); Common Stock — 3,250 shares (Indirect, IRA for Self)

Footnotes (2)

1. F1. Shares withheld to cover the taxes due upon the vesting of Common Stock Restricted Stock Units ("RSUs").
2. F2. Amount beneficially owned following the reported transaction includes 37,691 RSUs.

FAQ

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

What insider transaction did STRATUS PROPERTIES INC (STRS) report for William H. Armstrong III?

William H. Armstrong III had 984 shares of Common Stock withheld at $32.34 per share to cover taxes due on vested restricted stock units, a routine compensation-related transaction rather than an open-market sale.

Is the STRS insider transaction by William H. Armstrong III a stock sale?

The transaction is not an open-market stock sale. It reflects 984 shares withheld by the company to pay taxes owed when Common Stock restricted stock units vested, a standard method of satisfying tax obligations on equity compensation.

How many STRS shares does William H. Armstrong III hold after this Form 4 filing?

Following the tax withholding, William H. Armstrong III beneficially owns 683,872 shares directly, including 37,691 restricted stock units, and 3,250 shares indirectly through an IRA for his benefit, as disclosed in the filing’s ownership details.

What does the RSU vesting footnote mean in the STRS Form 4 filing?

The footnote explains that shares were withheld to cover taxes due upon vesting of Common Stock restricted stock units. It also states that Armstrong’s beneficial ownership total includes 37,691 RSUs, highlighting that part of his reported holdings are unvested or restricted units.

Does the STRS Form 4 show any option exercises or derivative transactions?

The Form 4 summary indicates no option exercises or other derivative transactions. It shows one tax-withholding disposition of 984 Common Stock shares and a holding entry for 3,250 indirectly owned shares in an IRA, with no remaining derivative positions listed.

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

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Accepted by SEC EDGAR 03/17/2026 - 04:39 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^*

ARMSTRONG WILLIAM H III

(Last) (First) (Middle)

212 LAVACA STREET

SUITE 300

(Street)

AUSTIN TX 78701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
STRATUS PROPERTIES INC [ STRS ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chair of Board, President, CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

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

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

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

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	03/15/2026		F		984(1)	D	$32.34	683,872(2)	D
Common Stock								3,250	I	IRA for Self

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:

1. Shares withheld to cover the taxes due upon the vesting of Common Stock Restricted Stock Units ("RSUs").

2. Amount beneficially owned following the reported transaction includes 37,691 RSUs.

Remarks:

	Kelly C. Simoneaux, on behalf of William H. Armstrong III pursuant to a power of attorney	03/17/2026
	** 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.