Mercury Systems, Inc. (MRCY) Institutional Ownership & Insider Trading

392 institutions reported holding Mercury Systems, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 46 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-07-03 · read by EquiReason

MRCYMercury Systems, Inc.Follow MRCY — free

Aerospace & Defense · Industrials

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Market cap: 4.5B
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 10 Nov, in 17 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

392 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +0.8%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	392	66	+0.8%	118	72	122	33
Mar 26	355	65	+0.9%	123	46	111	35
Dec 25	341	65	-0.9%	118	34	106	26
Sep 25	318	65	-1.1%	94	60	100	22
Jun 25	281	65	+2.9%	98	47	70	19
Mar 25	249	63	+0.3%	77	34	79	27
Dec 24	238	63	+1.4%	70	18	75	21
Sep 24	241	63	-3.9%	67	29	83	19

Mercury Systems, Inc. — questions

Who owns Mercury Systems, Inc. stock?: 392 institutions reported Mercury Systems, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (15.6%), JANA Partners Management, LP (6.6%), STATE STREET CORP (5.7%).
Are Mercury Systems, Inc. insiders buying or selling?: 46 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Mercury Systems, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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