MSA Safety ex-officer plans $645,626 stock sale

MSA Safety Inc (MSA) is the issuer of common stock that a former officer, David J. Howells, plans to sell under Rule 144.

Rhea-AI Filing Summary

MSA Safety Inc (MSA) is the issuer of common stock that a former officer, David J. Howells, plans to sell under Rule 144. A total of 3,407 common shares are indicated for potential sale through Fidelity Brokerage Services LLC on the NYSE by 08/18/2026, with an approximate value of $645,626.84.

The notice also references shares from restricted stock vesting awards: 1,299 shares vesting on 03/08/2025, 1,187 shares vesting on 03/08/2026, and 921 shares vesting on 07/01/2026, all described as compensation from MSA Safety Inc.

Key Figures

Shares to be sold: 3,407 shares Approximate value of shares to be sold: $645,626.84 Vesting shares 03/08/2025: 1,299 shares +2 more

5 metrics

Shares to be sold 3,407 shares Common stock indicated for potential sale through Fidelity Brokerage Services LLC

Approximate value of shares to be sold $645,626.84 Aggregate value associated with 3,407 MSA common shares

Vesting shares 03/08/2025 1,299 shares Restricted stock vesting as compensation on 03/08/2025

Vesting shares 03/08/2026 1,187 shares Restricted stock vesting as compensation on 03/08/2026

Vesting shares 07/01/2026 921 shares Restricted stock vesting as compensation on 07/01/2026

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 03/08/2025 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for David Howells"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

What does the Form 144 notice relate to for MSA (MSA Safety Inc)?

The notice relates to a potential sale of 3,407 MSA common shares by former officer David J. Howells under Rule 144, with the shares to be sold through Fidelity Brokerage Services LLC on the NYSE by 08/18/2026.

How many MSA (MSA Safety Inc) shares are planned for sale and what is their value?

The notice covers a potential sale of 3,407 MSA common shares with an indicated aggregate value of about $645,626.84. These shares are to be sold through Fidelity Brokerage Services LLC on the NYSE by 08/18/2026.

Who is the selling security holder in this MSA (MSA Safety Inc) Form 144?

The selling security holder is former officer David J. Howells. The notice is signed by Fidelity Brokerage Services LLC as attorney-in-fact for Howells, indicating it will handle the potential sale of his MSA common shares.

What restricted stock awards are identified for MSA (MSA Safety Inc) in this notice?

The notice lists MSA restricted stock vesting awards of 1,299 shares on 03/08/2025, 1,187 shares on 03/08/2026, and 921 shares on 07/01/2026. All are described as compensation from MSA Safety Inc.

On which exchange may the MSA (MSA Safety Inc) shares be sold under this notice?

The shares covered by the notice may be sold on the NYSE. The document specifies that 3,407 MSA common shares could be sold through Fidelity Brokerage Services LLC on the NYSE by 08/18/2026.

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

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Available on EDGAR 08/18/2026 - 03:57 PM Accepted by SEC EDGAR 08/18/2026 - 03:56 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002025382
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MSA Safety Inc
SEC File Number	001-15579
Address of Issuer	1000 CRANBERRY WOODS DRIVE CRANBERRY TOWNSHIP PENNSYLVANIA 16066
Phone	724-776-8600
Name of Person for Whose Account the Securities are To Be Sold	Howells David J
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	3407	645626.84	38578289	08/18/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/08/2025	Restricted Stock Vesting	Issuer			1299	03/08/2025	Compensation
Common	03/08/2026	Restricted Stock Vesting	Issuer			1187	03/08/2026	Compensation
Common	07/01/2026	Restricted Stock Vesting	Issuer			921	07/01/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for David Howells
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)