MSA Safety (MSA) president corrects prior Form 4 stock award details

Rhea-AI Filing Summary

Sciullo Stephanie L reported acquisition or exercise transactions in this Form 4 filing.

MSA Safety Inc President Stephanie L. Sciullo filed an amended Form 4 to correct a prior report of a stock award. The correction reflects a grant of 6,077 shares of common stock at no cost, bringing her directly owned shares to 16,383. According to the footnote, the original Form 4 contained an administrative error in the number of shares awarded under performance stock units and in the reported shares beneficially owned, so this amendment updates the figures rather than recording a new economic transaction.

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

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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^*

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)
03/08/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)
03/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/08/2026		A		6,077(1)	A	$0.0000	16,383	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 is filed to amend the number of shares reported as awarded under performance stock units in the original Form 4, which amount was incorrect due to administrative error, and is deemed to amend the number of shares reported as securities beneficially owned following the reported transactions in Table I to reflect the correction.

	Richard W. Roda, Attorney in Fact	03/10/2026
	** 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).
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FAQ

What does the latest Form 4/A for MSA (MSA) report?

The Form 4/A updates a prior insider filing for MSA Safety Inc. It corrects the number of common shares awarded under performance stock units and the total shares beneficially owned, reflecting an amended, not new, transaction for President Stephanie L. Sciullo.

How many MSA Safety (MSA) shares were reported in the corrected award?

The amended filing reports a grant of 6,077 shares of MSA Safety common stock. These shares were awarded at no cost under performance stock units and are now reflected accurately in the insider’s beneficial ownership totals after correcting an earlier administrative error.

What is Stephanie L. Sciullo’s MSA (MSA) share ownership after the amendment?

After the correction, Stephanie L. Sciullo is shown as directly owning 16,383 MSA Safety common shares. The Form 4/A states this figure reflects an amended beneficial ownership total following correction of an earlier misreported award amount due to administrative error.

Was the MSA (MSA) Form 4/A a new purchase or a stock grant?

The Form 4/A reflects a stock grant classified as a grant or award acquisition, coded “A.” The 6,077 shares of common stock were awarded at a price of $0.00 per share and relate to performance stock units rather than an open-market purchase.

Does the MSA (MSA) Form 4/A indicate insider buying or selling?

The filing indicates an acquisition through a share award, not an open-market buy or sell. It corrects previously reported award and ownership figures. There are no reported sales, and the change is described as an administrative correction to the original Form 4.