MSA Safety chairman sells 20,000 company shares

Rhea-AI Filing Summary

MSA Safety Inc director and chairman Nishan J. Vartanian reported selling 20,000 shares of common stock on 2026-08-07 in an open market or private transaction at a volume weighted average price of $193.9866 per share, with actual sale prices ranging from $193.575 to $195.6549. Following this sale, he directly holds 50,324 shares and has an additional 1,190 shares held indirectly by his wife.

Insider Trade Summary

Net Seller: 20,000 shares

Net Sell 2 txns

Insider Vartanian Nishan J.

Role Director

Sold 20,000 shs ($3.88M)

Type	Security	Shares	Price	Value
Sale	Common Stock, no par value F1	20,000	$193.9866	$3.88M
holding	Common Stock, no par value	--	--	--

Holdings After Transaction: Common Stock, no par value — 50,324 shares (Direct); Common Stock, no par value — 1,190 shares (Indirect, By Wife)

Footnotes (1)

1. F1. Price is the volume weighted average selling price of all sales by the reporting person on the transaction date within a one dollar range. Actual prices ranged from $193.575 to $195.6549. The reporting person herebyundertakes to provide upon request of the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price

Key Figures

Shares sold: 20,000 shares VWAP sale price: $193.9866 per share Sale price range: $193.575 to $195.6549 per share +3 more

6 metrics

Shares sold 20,000 shares Non-derivative sale of common stock on 2026-08-07

VWAP sale price $193.9866 per share Volume weighted average selling price for the 20,000-share sale

Sale price range $193.575 to $195.6549 per share Actual prices for shares sold on 2026-08-07

Direct holdings after transaction 50,324 shares Common stock directly owned by Nishan J. Vartanian after the sale

Indirect holdings after transaction 1,190 shares Common stock held indirectly by wife after the reported transactions

Net shares sold 20,000 shares Net buy/sell shares in this Form 4 per transaction summary

Key Terms

volume weighted average selling price, non-derivative, indirect ownership, open market or private transaction

4 terms

volume weighted average selling price financial

"Price is the volume weighted average selling price of all sales"

non-derivative financial

"transaction_type": "non-derivative""

indirect ownership financial

"total_shares_following_transaction": "1190.0000" ... "ownership_type": "indirect""

open market or private transaction financial

"transaction_code_description": "Sale in open market or private transaction""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did MSA (MSA Safety Inc) report on this Form 4?

MSA Safety Inc reported that director and chairman Nishan J. Vartanian sold 20,000 shares of common stock on 2026-08-07 in an open market or private transaction.

At what price did the MSA (MSA Safety Inc) insider sell shares?

The reported sale used a volume weighted average price of $193.9866 per share. The actual individual sale prices on 2026-08-07 ranged from $193.575 to $195.6549, according to the transaction footnote.

How many MSA (MSA Safety Inc) shares does Nishan J. Vartanian hold after the sale?

After the transaction, Nishan J. Vartanian directly holds 50,324 shares of MSA Safety Inc common stock, plus an additional 1,190 shares held indirectly through his wife, as reported in the Form 4.

What type of security was involved in the MSA (MSA Safety Inc) insider sale?

The transaction involved Common Stock, no par value of MSA Safety Inc. The Form 4 classifies it as a non-derivative security, sold in an open market or private transaction on 2026-08-07.

Does the MSA (MSA Safety Inc) Form 4 show any derivative transactions for this insider?

No derivative transactions are listed. The Form 4 shows one non-derivative sale of 20,000 common shares and a separate holding entry reflecting 1,190 shares held indirectly by the insider’s wife.

How is the indirect ownership reported in the MSA (MSA Safety Inc) Form 4?

The Form 4 reports 1,190 common shares as indirectly owned by Nishan J. Vartanian, with the nature of ownership described as “By Wife”. These are separate from his direct 50,324-share holding.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/11/2026 - 09:54 AM Accepted by SEC EDGAR 08/11/2026 - 09:53 AM Learn about SEC filing dates

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^*

Vartanian Nishan J.

(Last) (First) (Middle)

1000 CRANBERRY WOODS DRIVE

(Street)

CRANBERRY WOODS TOWNSHIP PENNSYLVANIA 16066

(City) (State) (Zip)

UNITED STATES

(Country)

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)	X	Other (specify below)
			Chairman

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026

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

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

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

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	08/07/2026		S		20,000	D	$193.9866(1)	50,324	D
Common Stock, no par value								1,190	I	By Wife

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. Price is the volume weighted average selling price of all sales by the reporting person on the transaction date within a one dollar range. Actual prices ranged from $193.575 to $195.6549. The reporting person herebyundertakes to provide upon request of the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price

	Richard W. Roda, Attorney in Fact	08/11/2026
	** 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).
** 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.
* Form 4: SEC 1474 (03-26)