[Form 4] MSA Safety Inc Insider Trading Activity

Rhea-AI Filing Summary

Stephanie L. Sciullo, President and Director of MSA Safety Inc (MSA), reported an insider sale. On 09/12/2025 she disposed of 2,361 shares of MSA common stock at $169.51 per share, leaving her with 9,083 shares beneficially owned. The Form 4 was signed by Richard W. Roda as attorney‑in‑fact on 09/15/2025. No derivative transactions or additional details are reported in this filing.

Positive

• Reporting transparency: Insider sale and resulting ownership are disclosed in accordance with Section 16 filing requirements
• Retained stake: Reporting person still beneficially owns 9,083 shares after the sale

Negative

• Insider sale: 2,361 shares were disposed of on 09/12/2025 at $169.51, which may be interpreted negatively by some investors
• Limited context: Filing does not state whether the sale was part of a prearranged plan or the percentage of total outstanding shares, restricting materiality assessment

Insights

Corporate Governance Expert

TL;DR: A routine disclosure of an insider stock sale by the company president; no derivatives or other complex transactions reported.

This Form 4 documents a straightforward sale of 2,361 shares at $169.51, reducing beneficial ownership to 9,083 shares. The filing identifies the reporting person as President and Director and shows signature by an attorney‑in‑fact. The transaction appears procedural and contains no indications of pledging, option exercises, or other non‑routine activity.

Securities Analyst

TL;DR: Insider sale disclosed; materiality cannot be assessed from this filing alone because total holdings and percentage ownership relative to outstanding shares are not provided.

The record shows a sale (code S) on 09/12/2025 for 2,361 shares at $169.51, leaving 9,083 shares beneficially owned. The Form contains no information about motivations, 10b5‑1 plans, or hedging arrangements. Without context on total shares outstanding or historical trading by this insider, investor impact is unclear.

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)
09/12/2025

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	09/12/2025		S		2,361	D	$169.51	9,083	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	09/15/2025
	** 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 Stephanie L. Sciullo report on Form 4 for MSA (MSA)?

She reported a sale of 2,361 shares of MSA common stock on 09/12/2025 at a price of $169.51, leaving her with 9,083 shares beneficially owned.

When was the Form 4 signed and by whom?

Signed by Richard W. Roda, attorney‑in‑fact, on 09/15/2025 according to the filing.

Does the Form 4 show any option exercises or derivative transactions?

No. Table II for derivative securities contains no reported transactions in this filing.

Is there any indication the sale was under a 10b5‑1 plan?

No indication. The filing does not check or disclose that the transaction was made pursuant to a 10b5‑1 plan.

What is the reporting person’s role at MSA?

Stephanie L. Sciullo is listed as President and a Director of MSA Safety Inc in the Form 4.