[Form 4] MSA Safety Inc Insider Trading Activity

Rhea-AI Filing Summary

Sandra L. Phillips, a director of MSA Safety Inc (MSA), reported a non-derivative acquisition of 8.283 shares of MSA common stock on 09/10/2025 at a reported price of $0.0000. After the transaction the filing shows 8,021.843 shares beneficially owned (reported as disposed in the form). The Form 4 was signed by an attorney-in-fact on 09/12/2025.

Insights

Financial Analyst

TL;DR: Small, routine insider transaction; no material impact on capitalization or investor valuation.

The filing documents a very small non-derivative acquisition of 8.283 shares reported at $0.0000, with 8,021.843 shares shown as beneficially owned following the reported activity. The size and reported price indicate a de minimis transfer relative to a public company’s outstanding shares; there is no earnings or debt detail in this Form 4 to change financial models.

Corporate Governance Expert

TL;DR: Disclosure meets Section 16 reporting; transaction appears administrative and not indicative of governance changes.

The report names Sandra L. Phillips as a director and shows the required Section 16 disclosure of a transaction dated 09/10/2025, with execution acknowledged via power of attorney on 09/12/2025. There are no indications of officer resignation, new grants, or other governance actions in this filing.

09/12/2025 - 12:18 PM

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^*

Phillips Sandra L.

(Last) (First) (Middle)

1000 CRANBERRY WOODS DRIVE

(Street)

CRANBERRY WOODS TOWNSHIP PA 16066

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2025

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, no par value	09/10/2025		A		8.283	A	$0.0000	8,021.843	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:

	Richard W. Roda, Attorney in Fact	09/12/2025
	** 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.

FAQ

What insider transaction did Sandra L. Phillips report for MSA (MSA)?

The Form 4 reports a non-derivative acquisition of 8.283 shares on 09/10/2025 with a reported price of $0.0000.

How many shares did Sandra L. Phillips beneficially own after the reported transaction?

The filing shows 8,021.843 shares beneficially owned following the reported transaction.

What is Sandra L. Phillips' relationship to MSA?

She is reported as a Director of MSA Safety Inc.

When was the Form 4 signed and by whom?

The Form 4 was signed by Richard W. Roda, Attorney in Fact on 09/12/2025.