Mercury Systems (NASDAQ: MRCY) director sells 7,000 shares in open-market trade

Rhea-AI Filing Summary

MERCURY SYSTEMS INC director Orlando D. Carvalho reported an open-market sale of 7,000 shares of Common Stock at $89.361 per share. After this transaction, he directly holds 52,448 shares. The filing reflects a single net-selling transaction with no derivative exercises reported.

Insider Trade Summary

Net Seller: 7,000 shares ($625,527)

Net Sell 1 txn

Insider Carvalho Orlando D

Role null

Sold 7,000 shs ($626K)

Type	Security	Shares	Price	Value
Sale	Common Stock	7,000	$89.361	$626K

Holdings After Transaction: Common Stock — 52,448 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 7,000 shares Sale price: $89.361 per share Shares owned after transaction: 52,448 shares +2 more

5 metrics

Shares sold 7,000 shares Common Stock open-market sale on 2026-05-12

Sale price $89.361 per share Price for 7,000 Common Stock shares sold

Shares owned after transaction 52,448 shares Direct holdings following the sale

Net buy/sell shares -7,000 shares Net-sell direction from transaction summary

Sell transactions count 1 transaction Single reported sale in this Form 4

Key Terms

open-market sale, Common Stock, Form 4, transaction code "S"

4 terms

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

transaction code "S" financial

"transaction_code_description: Sale in open market or private transaction"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Carvalho Orlando D

(Last) (First) (Middle)

50 MINUTEMAN ROAD

(Street)

ANDOVER MASSACHUSETTS 01810

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MERCURY SYSTEMS INC [ MRCY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/12/2026		S		7,000	D	$89.361	52,448	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Douglas Munro, attorney-in-fact	05/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did MERCURY SYSTEMS INC (MRCY) report for Orlando D. Carvalho?

MERCURY SYSTEMS INC reported that director Orlando D. Carvalho sold 7,000 shares of Common Stock. The transaction was an open-market sale at a reported price of $89.361 per share, according to the Form 4 insider filing details.

At what price did Orlando D. Carvalho sell MRCY shares in the latest Form 4?

Orlando D. Carvalho sold his MRCY Common Stock at a reported price of $89.361 per share. This price applies to the 7,000 shares sold in the open-market transaction disclosed in the Form 4 insider trading report.

How many MRCY shares does Orlando D. Carvalho hold after the reported sale?

Following the sale, Orlando D. Carvalho directly holds 52,448 shares of MERCURY SYSTEMS INC Common Stock. This post-transaction holding figure is explicitly stated in the Form 4 and reflects his remaining direct ownership position.

Was the MRCY insider transaction by Orlando D. Carvalho a purchase or a sale?

The transaction reported for Orlando D. Carvalho was a sale of MRCY shares. The Form 4 classifies it as an open-market sale of 7,000 shares of Common Stock, using transaction code “S” for a sale in open market or private transaction.

Does the latest MRCY Form 4 show any derivative security exercises by Orlando D. Carvalho?

The latest Form 4 for Orlando D. Carvalho does not show any derivative security exercises. The filing reports only a single non-derivative transaction: an open-market sale of 7,000 shares of Common Stock, with no options or other derivatives listed.