MSA director awarded 899 shares of stock

LAMBERT WILLIAM M reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

LAMBERT WILLIAM M reported acquisition or exercise transactions in this Form 4 filing.

MSA Safety Inc director William M. Lambert reported a stock grant and updated his holdings. He received an award of 899 shares of common stock at no cost, bringing his direct ownership to 35,626 shares. The filing also reports 40,250 shares held indirectly through his wife and 13,500 shares held indirectly through a GRAT associated with his wife.

Insider Trade Summary

Grant/Award: 899 shares

Grant/Award 3 txns

Insider LAMBERT WILLIAM M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, no par value	899	$0.00	$0.00
holding	Common Stock, no par value	--	--	--
holding	Common Stock, no par value	--	--	--

Holdings After Transaction: Common Stock, no par value — 35,626 shares (Direct); Common Stock, no par value — 13,500 shares (Indirect, By GRAT (Wife)); Common Stock, no par value — 40,250 shares (Indirect, By Wife)

Key Figures

Director stock grant: 899 shares Direct holdings after grant: 35,626 shares Indirect holdings via wife: 40,250 shares +1 more

4 metrics

Director stock grant 899 shares Common Stock grant coded as acquisition (A)

Direct holdings after grant 35,626 shares Common Stock held directly by Lambert

Indirect holdings via wife 40,250 shares Common Stock reported as held by wife

Indirect holdings via GRAT (wife) 13,500 shares Common Stock held by GRAT associated with wife

Key Terms

Grant, award, or other acquisition, non-derivative, indirect ownership, GRAT

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

non-derivative financial

"transaction_type: non-derivative"

indirect ownership financial

"ownership_type: indirect"

GRAT financial

"nature_of_ownership: By GRAT (Wife)"

FAQ

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

What did MSA (MSA) director William M. Lambert report in this Form 4?

William M. Lambert reported receiving an award of 899 shares of MSA common stock. This grant increased his direct holdings to 35,626 shares and updated disclosure of additional indirect holdings through his wife and a GRAT associated with his wife.

How many MSA (MSA) shares did William M. Lambert acquire in this filing?

He acquired 899 shares of MSA common stock as a grant at no cost. This compensation-related award is not an open-market purchase and reflects additional equity given to him in his capacity as a director of the company.

What are William M. Lambert’s direct MSA (MSA) holdings after the reported grant?

After the grant, Lambert’s direct ownership stands at 35,626 shares of MSA common stock. This figure reflects only shares held in his own name and excludes indirect holdings reported through his spouse and a related GRAT vehicle.

What indirect MSA (MSA) holdings are attributed to William M. Lambert?

The filing reports 40,250 MSA shares held indirectly through his wife and 13,500 shares held indirectly through a GRAT associated with his wife. These positions are disclosed as indirect ownership interests rather than shares held directly by Lambert himself.

Was the MSA (MSA) Form 4 transaction a market purchase or sale?

The Form 4 shows a grant of 899 shares coded as an acquisition, not a market trade. The zero share price indicates a compensation-related award rather than an open-market purchase or sale on a stock exchange.

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

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Accepted by SEC EDGAR 05/14/2026 - 11:13 AM 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^*

LAMBERT WILLIAM M

(Last) (First) (Middle)

1000 CRANBERRY WOODS DRIVE

(Street)

CRANBERRY WOODS TOWNSHIP PENNSYLVANIA 16066

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MSA Safety Inc [ MSA ]

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)
05/13/2026

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, no par value	05/13/2026		A		899	A	$0.0000	35,626	D
Common Stock, no par value								13,500	I	By GRAT (Wife)
Common Stock, no par value								40,250	I	By Wife

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:

	Richard W. Roda, Attorney in Fact	05/14/2026
	** 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)