Company · Ownership research

MERCURY SYSTEMS INC MRCY

CIK 0001049521

Form 4 transactions dated Nov 1, 2023 to Nov 11, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 30, 2026.

Insider purchases & sales

Purchased: $67.53M
Sold: $260.13M

Nov 1, 2023 – Oct 30, 2026
Available records · partial months are marked ·

2023, from Nov 1, 20239 of 9 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 19, 2023	McCarthy Michelle M SVP, CAO	Sale	$8.52K 231 shares sold	0.70% sold Direct holding	▾
Nov 30, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$2.18M 63,648 shares bought	1.24% added Indirect holding	▾
Nov 29, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$3.92M 117,881 shares bought	2.34% added Indirect holding	▾
Nov 28, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$2.14M 64,435 shares bought	1.30% added Indirect holding	▾
Nov 20, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$10.73K 315 shares bought	0.01% added Indirect holding	▾
Nov 17, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$1.50M 44,057 shares bought	0.89% added Indirect holding	▾
Nov 16, 2023	JANA Partners Management, LP Director · See Remarks	Purchase	$7.17M 215,550 shares bought	4.58% added Indirect holding	▾
Nov 16, 2023	Wells Charles Roger IV EVP President Microelectronics	Sale	$52.40K 1,554 shares sold	1.69% sold Direct holding	▾
Nov 13, 2023	Carvalho Orlando D Director	Purchase	$1.18M 35,000 shares bought	202.85% added Direct holding	▾

Showing 9 / 9 record groups in 2023. The complete set is available through the API.

MERCURY SYSTEMS INC · MRCY

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 9 of 9 purchase / sale groups and 0 of 0 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"MRCY","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.