[Form 4] Mine Safety Incorporated Insider Trading Activity

Rhea-AI Filing Summary

Stephanie L. Sciullo, President of MSA Safety Inc. (MSA), reported an insider sale on 09/01/2025. She disposed of 3,869 shares of the company’s common stock at a reported price of $170.60 per share, leaving her with beneficial ownership of 16,144 shares. The Form 4 was filed as a single reporting person and signed by an attorney-in-fact on 09/03/2025.

Positive

• Reporting person retains meaningful ownership: 16,144 shares remain beneficially owned after the sale
• Filing appears complete and signed by an attorney-in-fact, indicating proper execution of Form 4 requirements

Negative

• Insider disposition reported: 3,869 shares were sold on 09/01/2025 at $170.60 per share
• No disclosure in this filing of a trading plan, purpose of sale, or whether the sale was part of a Rule 10b5-1 plan

Insights

Financial Analyst

TL;DR: Insider sale of 3,869 shares is a routine disclosure; remaining holding is 16,144 shares.

The transaction is a straightforward disclosure of a voluntary sale by the company president. The sale reduced direct beneficial ownership by 3,869 shares at $170.60 each. There is no accompanying information in the filing about proceeds use, trading plan, or unusual timing, and no derivative transactions were reported. From a financial-data perspective this is a routine SEC Section 16 disclosure without additional context to change an investment thesis.

Corporate Governance Expert

TL;DR: A standard Form 4 reporting an officer sale; governance implications are limited without further detail.

The filing identifies the reporting person as President and an officer of MSA Safety Inc., reporting a direct disposition. The Form is properly executed by an attorney-in-fact. Absent information about Rule 10b5-1 plans, approvals, or related-party transactions, this sale appears routine. No material corporate governance events or departures are disclosed.

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^*

Sciullo Stephanie 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)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2025

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	09/01/2025		F		3,869	D	$170.6	16,144	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	09/03/2025
	** 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 did the MSA (MSA) insider sell?

The reporting person disposed of 3,869 shares of MSA common stock.

At what price were the shares sold in the Form 4?

The Form 4 reports a sale price of $170.60 per share for the disposed shares.

How many MSA shares does the reporting person own after the sale?

Following the reported transaction, the reporting person beneficially owns 16,144 shares.

Who is the reporting person on this Form 4?

The Form identifies Stephanie L. Sciullo, President of MSA Safety Inc., as the reporting person.

When was the transaction and when was the Form 4 signed?

The transaction date is 09/01/2025 and the Form 4 was signed by an attorney-in-fact on 09/03/2025.