[Form 4/A] MSA Safety Inc Amended Insider Trading Activity

Rhea-AI Filing Summary

Amended Form 4 for Stephanie L. Sciullo, President of MSA Safety Inc. (MSA). The filing reports two sell transactions on 09/11/2025: 1,700 shares sold at $172.465 and 3,000 shares sold at $172.33. The entries list post-transaction beneficial holdings of 14,444 shares and 11,444 shares respectively, with ownership reported as direct. The amendment corrects the transaction code to "S" (sale) which had been misreported. The form is signed by an attorney-in-fact on 09/12/2025. The document contains only the reported sales, positions after the sales, the officer role of the reporting person, and the correction to the transaction code.

Positive

• Accurate disclosure: Amendment corrects transaction code to "S", improving regulatory and investor transparency.
• Timely filing: Amendment filed the day after the original, indicating prompt correction of the error.

Negative

• Insider selling: The President sold a total of 4,700 shares on 09/11/2025, which may be viewed negatively by some investors.
• Reduced holdings: Post-sale direct holdings are reported as 14,444 and 11,444 shares, showing a decline in insider ownership.

Insights

Financial Analyst

TL;DR: Insider sales totaling 4,700 shares were executed at roughly $172 per share; amendment corrected reporting code to sale.

This Form 4/A documents two contemporaneous sales totaling 4,700 shares by the President, executed at $172.465 and $172.33 on 09/11/2025. Post-transaction holdings are reported as 14,444 and 11,444 direct shares. The amendment solely fixes the transaction code to reflect sales, improving disclosure accuracy. From a market-impact perspective, the reported quantities are modest relative to large-cap float and provide no forward-looking company information; the filing is primarily a compliance disclosure.

Corporate Governance Expert

TL;DR: Correction improves governance transparency; insider sales were properly disclosed via amended Form 4.

The amendment addresses a filing error by changing the transaction code to "S", clarifying that the transactions were sales rather than another code. Accurate Section 16 reporting is important for governance and market confidence. The reporting person is identified as President and an officer-level insider, which makes timely and correct disclosure material for regulatory compliance. The form does not disclose any plans, hedging, or Rule 10b5-1 arrangements.

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
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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)
09/11/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
09/12/2025

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	09/11/2025		S(1)		1,700	D	$172.465	14,444	D
Common Stock, no par value	09/11/2025		S(1)		3,000	D	$172.33	11,444	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. This amendment corrects the transaction code in Table 1, which was inadvertently reported as 'D' and has been corrected to 'S'.

	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 transactions does the MSA Form 4/A for Stephanie Sciullo report?

The form reports two sales on 09/11/2025: 1,700 shares at $172.465 and 3,000 shares at $172.33.

Why was this Form 4 amended?

The amendment corrects the transaction code to "S" (sale), which was inadvertently reported incorrectly in the original filing.

What are the reporting person’s holdings after the transactions?

The filing lists post-transaction direct beneficial ownership as 14,444 shares and 11,444 shares on the respective lines.

What is the reporting person’s role at MSA?

Stephanie L. Sciullo is listed as President and an officer of MSA Safety Inc.

When was the Form 4/A signed and by whom?

The form bears a signature by an attorney-in-fact, Richard W. Roda, dated 09/12/2025.