[144] Mercury Systems Inc. SEC Filing

Rhea-AI Filing Summary

Mercury Systems (MRCY) Form 144 notice shows a proposed sale of 376 common shares on 08/19/2025 through Fidelity Brokerage Services on the NASDAQ, with an aggregate market value of $24,238.38. The shares were acquired by the reporting person via restricted stock vesting on 08/18/2025 and were paid as compensation. The filing also discloses that the reporting person sold 363 common shares on 08/18/2025 for gross proceeds of $24,145.42. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information about the issuer.

Insights

Financial Analyst

TL;DR: Routine insider sale following restricted stock vesting; size is immaterial relative to typical public float.

The Form 144 documents a near-term planned sale of 376 shares acquired by restricted stock vesting and sold through a retail broker on NASDAQ. The transaction appears to be compensation-related and not the result of a cash purchase. The contemporaneous sale of 363 shares the prior day indicates active disposition of recently vested awards. Given the share counts and stated dollar amounts, these transactions are small in absolute terms and do not, by themselves, indicate a change in company fundamentals.

Corporate Governance Expert

TL;DR: Disclosure follows Rule 144 requirements; provides standard seller certifications and trading details.

The filing includes required details: acquisition date, nature of acquisition (restricted stock vesting), planned sale date, broker, and market value. The signer certifies no undisclosed material adverse information. This is a routine compliance disclosure for disposition of restricted-equity compensation and contains no governance red flags based on the information provided.

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	376	24238.38	59915670	08/19/2025	NASDAQ

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	08/18/2025	Restricted Stock Vesting	Issuer			376	08/18/2025	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Douglas Munro 50 Minuteman Road Andover MA 01810	Common	08/18/2025	363	24145.42

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)