[144] Mine Safety Incorporated SEC Filing

Rhea-AI Filing Summary

Mine Safety Incorporated (MSA) filing a Form 144 notifies a proposed sale of 1,034 common shares through Fidelity Brokerage Services on the NYSE with an aggregate market value of $178,154.27 and an approximate sale date of 09/11/2025. The 1,034 shares match recent restricted stock vesting events recorded on 02/22/2025 (100 shares), 03/08/2025 (350 shares) and 08/31/2025 (584 shares), each acquired from the issuer as compensation. The filer reports no securities sold in the past three months and includes the standard representation that no material nonpublic information is known by the seller.

Positive

• Full transparency on share count, acquisition dates, broker and aggregate market value provided in the filing
• Securities tied to restricted stock vesting, indicating the shares were issued as compensation and are not newly purchased shares
• No sales in the past three months reported, simplifying the aggregated sales calculation under Rule 144

Negative

• Proposed sale represents 1,034 shares with an aggregate value of $178,154.27 which could be perceived as insider monetization
• Filing lacks identity details about the person for whose account the securities are sold (role or holdings percentage not provided)

Insights

Securities Compliance Analyst

TL;DR: Routine insider sale notice tied to vested restricted stock; procedural compliance appears complete.

The Form 144 documents a proposed public sale of 1,034 common shares via a registered broker with clear linkage to restricted stock vesting events and compensation. The filing lists the broker, share counts, acquisition dates and aggregate market value, and states there were no sales in the prior three months. From a compliance perspective, the submission contains the core elements required for Rule 144 notice: identity of broker, class and amount of securities, acquisition details and the seller's representational statement.

Corporate Governance Expert

TL;DR: This is a standard disclosure of insider-derivative compensation being monetized; no governance red flags in the notice itself.

The transaction arises from restricted stock vesting, indicating compensation realization by an insider or holder. The filing discloses dates and amounts for each vesting tranche and specifies no prior sales in the three-month lookback. The inclusion of the broker and the approximate sale date supports transparency. The form does not contain additional governance details such as insider role or shareholding percentage, so any broader governance implications cannot be assessed from this notice alone.

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	1034	178154.27	39143220	09/11/2025	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	08/31/2025	Restricted Stock Vesting	Issuer			584	08/31/2025	Compensation
Common	03/08/2025	Restricted Stock Vesting	Issuer			350	03/08/2025	Compensation
Common	02/22/2025	Restricted Stock Vesting	Issuer			100	02/22/2025	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

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

How many Mine Safety Incorporated (MSA) shares are proposed for sale in this Form 144?

The notice proposes the sale of 1,034 common shares.

What is the aggregate market value of the proposed MSA sale?

The aggregate market value reported is $178,154.27.

When are the shares expected to be sold and on which exchange?

The approximate sale date is listed as 09/11/2025 and the sale is to occur on the NYSE through Fidelity Brokerage Services.

How were the securities acquired that are being sold?

All 1,034 shares were acquired via restricted stock vesting from the issuer on 02/22/2025, 03/08/2025, and 08/31/2025, and the nature of payment is reported as compensation.

Did the filer sell any of the issuer's securities in the past three months?

The filing states "Nothing to Report" for securities sold during the past three months.