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  4. [144] MERCURY SYSTEMS INC SEC Filing

Mercury Systems (MRCY) seller plans post-vesting stock sale

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
144

Rhea-AI Filing Summary

MERCURY SYSTEMS INC (MRCY) insider David E. Farnsworth filed a notice of proposed sale of common stock under Rule 144. The notice covers 7,347 shares of common stock, related to restricted stock vesting, with an aggregate market value of $818,145.03. A remark states that the sale includes an amount necessary to cover a tax obligation from settlement of a vested equity award distribution. Over the prior three months, Farnsworth reported selling 1,345 shares of common stock for $147,883.96.

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Shares to be sold 7,347 shares Common stock proposed for sale under Rule 144
Aggregate market value of proposed sale $818,145.03 Market value of 7,347 shares covered by the Rule 144 notice
Shares outstanding 60,043,283 shares Common shares outstanding of MERCURY SYSTEMS INC listed with the Rule 144 information
Shares sold in past 3 months 1,345 shares Common shares sold by David E. Farnsworth during the past three months
Value of shares sold in past 3 months $147,883.96 Total sale value of 1,345 shares sold in the past three months
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 | 08/17/2026 | 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"
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

What does the Form 144 filing disclose for MERCURY SYSTEMS INC (MRCY)?
The filing discloses that David E. Farnsworth intends to sell 7,347 shares of MRCY common stock under Rule 144, tied to restricted stock vesting and covering tax obligations from a vested equity award settlement.

How many MRCY shares are proposed to be sold under this Rule 144 notice?
The notice covers a proposed sale of 7,347 shares of MERCURY SYSTEMS INC common stock. These shares relate to restricted stock vesting and include an amount intended to satisfy a tax obligation from the settlement of a vested equity award.

What is the aggregate market value of the MRCY shares in this Form 144?
The aggregate market value of the 7,347 shares covered by the notice is reported as $818,145.03. This figure reflects the market value used in the Rule 144 filing for the proposed sale of MERCURY SYSTEMS INC common stock.

How many MRCY shares has David E. Farnsworth sold in the past three months?
Over the past three months, David E. Farnsworth is reported to have sold 1,345 shares of MERCURY SYSTEMS INC common stock. The filing lists total sale value for these shares as $147,883.96 during that period.

Why does the MRCY Form 144 mention tax obligations?
The remarks explain that the sale includes an amount necessary to cover a tax obligation arising from the settlement of a vested equity award distribution. This indicates part of the proposed share sale is intended to satisfy related tax liabilities.

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

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144: Filer Information

144: Issuer Information

144: Securities Information



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


* 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

144: Remarks and Signature

Source: View Original Filing on SEC EDGAR