CSW INDUSTRIALS EVP Don Sullivan Sells 4,136 Company Shares

Rhea-AI Filing Summary

CSW INDUSTRIALS, INC. executive EVP and Chief Strategy Officer Don Sullivan reported an open-market sale of company stock. On 12/08/2025, he sold 4,136 shares of common stock at a weighted average price of $301.41 per share, with individual trades executed between $301.04 and $302.23. After this transaction, he beneficially owned 18,196 shares directly and an additional 1,875 shares indirectly through an ESOP. The filing notes that detailed trade-by-trade pricing information is available upon request.

Insider Trade Summary

Net Seller: 4,136 shares

Net Sell 2 txns

Insider Sullivan Don

Role EVP, Chief Strategy Officer

Sold 4,136 shs ($1.25M)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,136	$301.41	$1.25M
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 18,196 shares (Direct); Common Stock — 1,875 shares (Indirect, by ESOP)

Footnotes (1)

1. F1. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $301.04 to $302.23, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

FAQ

What insider transaction did CSW (CSW) disclose in this Form 4?

The filing reports that EVP and Chief Strategy Officer Don Sullivan sold 4,136 shares of CSW INDUSTRIALS, INC. common stock on 12/08/2025.

At what price were the CSW INDUSTRIALS, INC. shares sold in this insider trade?

The shares were sold at a weighted average price of $301.41 per share, with individual sale prices ranging from $301.04 to $302.23.

How many CSW shares does Don Sullivan own after the reported transaction?

Following the sale, Don Sullivan beneficially owned 18,196 shares of CSW common stock directly and 1,875 shares indirectly through an ESOP.

What is Don Sullivan’s role at CSW INDUSTRIALS, INC.?

Don Sullivan is an officer of CSW INDUSTRIALS, INC., serving as EVP, Chief Strategy Officer, as indicated in the filing.

Is detailed pricing information for each CSW share sale transaction available?

Yes. The filing states that the reporting person will provide full information on the number of shares sold at each separate price within the $301.04 to $302.23 range upon request.

Is this CSW filing made by a single reporting person or a group?

The document indicates that it is a Form filed by one reporting person, referring to Don Sullivan.

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Accepted by SEC EDGAR 12/09/2025 - 04:55 PM 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^*

Sullivan Don

(Last) (First) (Middle)

5420 LBJ FREEWAY

SUITE 500

(Street)

DALLAS TX 75240

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CSW INDUSTRIALS, INC. [ CSW ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Strategy Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/08/2025

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	12/08/2025		S		4,136	D	$301.41(1)	18,196	D
Common Stock								1,875	I	by ESOP

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. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $301.04 to $302.23, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Remarks:

	/s/ Luke E. Alverson, Attorney-in-Fact for Don Sullivan	12/09/2025
	** 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.