Simpson Manufacturing (SSD) CFO Matt Dunn receives 2,667 restricted stock units

Rhea-AI Filing Summary

Simpson Manufacturing’s Chief Financial Officer Matt Dunn reported an equity award of 2,667 shares of common stock on January 27, 2026, granted at a price of $0 per share as restricted stock units (RSUs) under the company’s 2011 Equity Incentive Plan.

Each RSU represents one share of common stock and is scheduled to vest in three equal annual installments beginning in February 2027. After this grant, Dunn beneficially owned 4,872 shares in total, including 4,740 RSUs that had not yet vested.

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

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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^*

Dunn Matt

(Last) (First) (Middle)

5956 W. LAS POSITAS BLVD

(Street)

PLEASANTON CA 94588

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Simpson Manufacturing Co., Inc. [ SSD ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/27/2026

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	01/27/2026		A		2,667(1)	A	$0	4,872(2)	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:

1. Represents Restricted Stock Units (RSUs). Each RSU represents a right to receive, subject to the terms and conditions of the 2011 Equity Incentive Plan and an RSU Award Agreement, one share of the Company's common stock subject to vesting in three equal annual installments, beginning in February 2027.

2. Includes 4,740 Restricted Stock Units that have not yet vested.

Remarks:

	Cari Fisher, Attorney-in-Fact	01/29/2026
	** 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.

FAQ

What insider transaction did SSD Chief Financial Officer Matt Dunn report?

Matt Dunn, Chief Financial Officer of Simpson Manufacturing (SSD), reported receiving 2,667 shares of common stock as restricted stock units (RSUs) on January 27, 2026. The RSUs were granted at $0 per share under the company’s 2011 Equity Incentive Plan, reflecting equity-based compensation.

How many Simpson Manufacturing (SSD) shares does Matt Dunn own after this Form 4?

After the reported grant, Matt Dunn beneficially owned 4,872 shares of Simpson Manufacturing common stock. This total includes 4,740 restricted stock units that have not yet vested, indicating a significant portion of his reported holdings is tied to future vesting conditions under company equity plans.

How do Matt Dunn’s new RSUs at SSD vest over time?

The 2,667 restricted stock units granted to Matt Dunn vest in three equal annual installments beginning in February 2027. Each RSU converts into one share of Simpson Manufacturing common stock as vesting occurs, subject to the terms and conditions of the 2011 Equity Incentive Plan and the RSU award agreement.

What is the nature of the security reported in Matt Dunn’s SSD Form 4?

The reported security is Simpson Manufacturing common stock delivered through restricted stock units (RSUs). Each RSU represents a right to receive one share of common stock, contingent on vesting in three equal annual installments starting February 2027, as governed by the 2011 Equity Incentive Plan documents.

Was Matt Dunn’s SSD equity award a purchase or a compensation grant?

The filing shows an acquisition coded as “A” of 2,667 shares at $0 per share, indicating a compensation-related grant rather than an open-market purchase. The award is structured as restricted stock units under Simpson Manufacturing’s 2011 Equity Incentive Plan and a related RSU award agreement.