[144] Mine Safety Incorporated SEC Filing

Rhea-AI Filing Summary

Form 144 notice by an insider of Mine Safety Incorporated (MSA). The filer reports a proposed sale of 250 shares of common stock through Fidelity Brokerage Services on the NYSE, with an aggregate market value of $43,774.32 and an approximate sale date of 08/22/2025. The shares were acquired on 05/18/2023 upon restricted stock vesting and were received as compensation. The filing also discloses that the same person sold 500 shares on 06/10/2025 for $83,288.79 and 439 shares on 07/16/2025 for $75,069.00. The signer represents no undisclosed material adverse information about the issuer.

Positive

• Clear Rule 144 compliance: The filing specifies acquisition dates, nature (restricted stock vesting), and payment method (compensation).
• Disclosure of recent transactions: The filer reported prior sales of 500 shares and 439 shares with gross proceeds, improving transparency.

Negative

• Insider selling shares: The filer has sold 939 shares in June–July 2025 and proposes to sell an additional 250 shares on 08/22/2025.
• Outstanding share count shown: 39,143,220 shares outstanding, indicating the insider sales are a small fraction but increase share supply.

Insights

Securities Analyst

TL;DR: Insider plans a modest Rule 144 sale after restricted stock vesting; recent small-volume sales were also disclosed.

The filing shows a proposed sale of 250 common shares by an insider via Fidelity on the NYSE with an indicated market value of $43,774.32 and an expected date of 08/22/2025. The shares originated from restricted stock that vested on 05/18/2023 and were paid as compensation. The filer disclosed two recent sales totaling 939 shares generating $158,357.79 in gross proceeds during June and July 2025. From a market-impact perspective, these are small transactions relative to the issuer's stated outstanding share count of 39,143,220 and are routine for insiders monetizing vested compensation; they contain no statements of undisclosed material adverse information.

Corporate Governance Expert

TL;DR: Disclosure aligns with Rule 144 requirements; transaction originates from vested compensation and includes prior recent sales.

The submission identifies the relationship of the shares to compensation and documents acquisition and payment dates, which meets Rule 144 disclosure standards. The signer also affirms lack of undisclosed material adverse information. The record of recent sales (500 shares and 439 shares) demonstrates ongoing dispositions by the same person. No governance irregularities or procedural omissions are evident within the provided content.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	250	43774.32	39143220	08/22/2025	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	05/18/2023	Restricted Stock Vesting	Issuer			250	05/18/2023	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Rebecca B. Roberts 1000 Cranberry Woods Drive Cranberry Township PA 16066-5207	Common	06/10/2025	500	83288.79
Rebecca B. Roberts 1000 Cranberry Woods Drive Cranberry Township PA 16066-5207	Common	07/16/2025	439	75069.00

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Mine Safety Incorporated's (MSA) Form 144 disclose?

The filing discloses a proposed sale of 250 common shares$43,774.32, acquired on 05/18/2023 from restricted stock vesting and paid as compensation.

When is the proposed sale scheduled for the 250 MSA shares?

The filing lists the approximate sale date as 08/22/2025.

How many MSA shares did the insider sell in the past three months?

The filer sold 500 shares on 06/10/2025 for $83,288.79 and 439 shares on 07/16/2025 for $75,069.00, totaling 939 shares.

How were the 250 shares being sold acquired?

They were acquired on 05/18/2023 through restricted stock vesting from the issuer and paid as compensation.

What does the signer represent about material information?

By signing, the person represents they do not know any material adverse information about the issuer that has not been publicly disclosed.