Mercury Systems MRCY Institutional Ownership

NASDAQ MRCY

$75.56 +0.07 (+0.09%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

393 Institutions

Increased 215 54.7%

Unchanged 48 12.2%

Reduced 130 33.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

65.39Mn

of 59.50Mn outstanding

▲+2.22% QoQ

Shares Outstanding

59.50Mn

Institutional Investors

393

filed 13F for Jun 2026

▲+38 vs prior quarter

Net Shares Added (QoQ)

+1.42Mn

accumulated since last quarter

Value of Holdings

$4.94Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Mercury Systems Inc (NASDAQ:MRCY) was held by 393 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

Total holdings of MRCY shares rose 2.22% from Q1 2026, and the holder count rose 38.87% from Q2 2025.
Looking at the 393 holders of MRCY individually, 215 added to their positions, 130 reduced their stakes and 48 left their positions unchanged.
The aggregate institutional position in Mercury Systems was 65.39Mn shares at the end of Q2 2026, up 1.42Mn from the prior quarter and up 1.56Mn from a year earlier.
BlackRock, Inc. led 13F holders of MRCY with 9.37Mn shares as of June 30, 2026.
The biggest increases in MRCY positions during Q2 2026 came from FMR LLC (+938.43K shares), BlackRock, Inc. (+450.58K shares), Franklin Templeton Inc (+393.1K shares), Goldman Sachs Group Inc (+374.62K shares) and T. Rowe Price Associates Inc (+256.96K shares).
Among holders that kept a stake in Mercury Systems, the biggest sellers in Q2 2026 were Ameriprise Financial Inc (-492.6K shares), State Street Corp (-447.43K shares), Conestoga Capital Advisors, LLC (-431.4K shares), Jennison Associates LLC (-333.22K shares) and Voya Investment Management LLC (-199.18K shares).
Per Business Quant, the top 10 investors in MRCY for the quarter ended June 30, 2026 were BlackRock, Inc. (9.37Mn shares), JANA Partners Management, LP (3.96Mn shares), State Street Corp (3.42Mn shares), Vanguard Portfolio Management LLC (3.03Mn shares), Invesco Ltd. (2.67Mn shares), Vanguard Capital Management LLC (2.42Mn shares), FMR LLC (1.84Mn shares), T. Rowe Price Investment Management, Inc. (1.6Mn shares), Goldman Sachs Group Inc (1.58Mn shares) and Conestoga Capital Advisors, LLC (1.49Mn shares).

Form 13F Holdings

393 Institutional Holders

Report period 30 Jun, 2026

Total shares held 65.39Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	9,370,902	15.75%	▲450,577	+5.05%	$1.15Bn
2	JANA Partners Management, LP	0001998597	3,958,849	6.65%	▼148,575	-3.62%	$484.29Mn
3	State Street Corp	0000093751	3,418,290	5.75%	▼447,429	-11.57%	$418.05Mn
4	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	3,031,459	5.09%	▲120,555	+4.14%	$370.84Mn
5	Invesco Ltd.	0000914208	2,669,450	4.49%	▲227,872	+9.33%	$326.55Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,422,629	4.07%	▲18,811	+0.78%	$296.36Mn
7	FMR LLC	0000315066	1,842,103	3.10%	▲938,435	+103.85%	$225.34Mn
8	T. Rowe Price Investment Management, Inc.	0001897612	1,595,711	2.68%	▲15,879	+1.01%	$195.20K
9	Goldman Sachs Group Inc	0000886982	1,575,727	2.65%	▲374,615	+31.19%	$192.76Mn
10	Conestoga Capital Advisors, LLC	0001163744	1,487,191	2.50%	▼431,400	-22.49%	$181.93Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,459,574	2.45%	▼66,142	-4.34%	$178.58Mn
12	FIRST TRUST ADVISORS LP	0001125816	1,298,957	2.18%	▲138,182	+11.90%	$158.90Mn
13	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,285,569	2.16%	▲256,960	+24.98%	$157.26K
14	DIMENSIONAL FUND ADVISORS LP	0000354204	1,156,682	1.94%	▼71,293	-5.81%	$141.44Mn
15	SEGALL BRYANT & HAMILL, LLC	0001006378	1,029,491	1.73%	▲1,029,491	0.00%	$125.94Mn
16	Fisher Asset Management, LLC	0000850529	944,069	1.59%	▼36,298	-3.70%	$115.49Mn
17	Franklin Templeton Inc	0000038777	846,732	1.42%	▲393,099	+86.66%	$103.58Mn
18	Neuberger Berman Group LLC	0001465109	841,556	1.41%	▼68,862	-7.56%	$102.07Mn
19	Morgan Stanley	0000895421	811,565	1.36%	▲140,234	+20.89%	$99.28Mn
20	WELLINGTON MANAGEMENT GROUP LLP	0000902219	775,502	1.30%	▲19,977	+2.64%	$94.87Mn

Showing 1 to 20 of 393 holders