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MRCY · Industrials

Mercury Sys Inc

USA Industrials Filing: 2026-03-31
23/100
Smart-money confidence1 of 3 sources positive
Bearish — money moving out

No standout activity across the feeds we track.

Hedge funds
31
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Market cap
$6.5B
Industry
Aerospace & Defense
Sector
Industrials
Exchange
NasdaqGS
About MERCURY SYS INC

Mercury Systems, Inc., a technology company, manufactures and sells components, products, modules, and subsystems for defense prime contractors, original equipment manufacturers, government, and commercial aerospace companies. The company offers components, including power amplifiers and limiters, switches, oscillators, filters, equalizers, digital and analog converters, chips, monolithic microwave integrated circuits, and memory and storage devices; modules and sub-assemblies, such as embedded processing boards, switched fabrics and boards, digital receivers, multi-chip modules, integrated…

Who's behind the signal
Every informed buyer we can see on MRCY, across all three feeds.
Hedge funds · 6
Citadel Advisors Increased +181%
AQR Capital Management Increased +61%
JANA Partners Management Decreased −17%
D.E. Shaw & Co Decreased −6%
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Not a model pick — but on our radar. MERCURY SYS INC isn't in the top-10 model right now, but 6 tracked investors hold it. Everything below is real signal from public filings — treat this as a watch candidate, not a conviction call.
6
Investors
1
New positions
2
Increasing
3
Decreasing
0
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Trust weight: 1.0×
New position
% of portfolio
0.0%
Position change
NEW
0.0% of Millennium Management's portfolio
Trust weight: 1.0×
Increased +181%
% of portfolio
0.0%
Position change
+181%
0.0% of Citadel Advisors's portfolio
Trust weight: 1.0×
Increased +61%
% of portfolio
0.0%
Position change
+61%
0.0% of AQR Capital Management's portfolio
Trust weight: 1.1×
Decreased −17%
% of portfolio
18.6%
Position change
−17%
18.6% of JANA Partners Management's portfolio
Trust weight: 1.1×
Decreased −82%
% of portfolio
0.0%
Position change
−82%
0.0% of Gotham Asset Mgmt's portfolio
Trust weight: 1.0×
Decreased −6%
% of portfolio
0.0%
Position change
−6%
0.0% of D.E. Shaw & Co's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to MERCURY SYS INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell MERCURY SYS INC or any security.

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