MRCY
Mercury System (MRCY)
NASDAQ
$109.58-$2.18 (-1.95%)
Price as of Jun 23, 2026 7:23 PM EDT
  • $6.7B
    Market Cap
  • 115.63%
    1-Year Change
  • Aerospace & Defense
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
14.86%
8.9M
+308,687 (+3.46%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
14.69%
8.8M
+145,124 (+1.65%)
Dec 31, 2024
BLACKROCK INC.
14.67%
8.8M
+1.4M (+15.93%)
Jun 30, 2024
VANGUARD GROUP INC
9.38%
5.6M
-98,984 (-1.76%)
Dec 31, 2025
JANA PARTNERS LLC
7.32%
4.4M
+2.4M (+54.64%)
Jun 30, 2023
JANA PARTNERS MANAGEMENT, LP
6.84%
4.1M
-852,057 (-20.74%)
Mar 31, 2026
STATE STREET CORP
6.44%
3.9M
+442,119 (+11.44%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.1B (72.15%)
  • Mutual Funds415.3M (26.97%)
  • Insiders13.7M (0.89%)
  • Other0 (0.00%)

Insider Transactions

  • 0.89% (13.7M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 8
    Number of InsiderSelling (last 12 months)
  • $2.2B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Ratner Steven
EVP, CHRO
Award
Mar 16, 2026
$0.00
437
$0.00
34,238
JANA Partners Management, LP
Sell
Mar 04, 2026
$9.0M
100,899
$89.68
4.1M
JANA Partners Management, LP
Sell
Mar 03, 2026
$15.2M
168,648
$90.12
4.2M
JANA Partners Management, LP
Sell
Mar 02, 2026
$17.2M
182,510
$94.05
4.4M
LANCE HOWARD L
Sell
Feb 25, 2026
$429,959.57
4,832
$88.98
27,272
Munro Douglas
SVP, CAO
Sell
Feb 17, 2026
$48,629.24
582
$83.56
14,328
KUPINSKY STUART
EVP, CLO & Corp Sec
Sell
Feb 17, 2026
$191,091.20
2,287
$83.56
68,010
JANA Partners Management, LP
Sell
Feb 09, 2026
$32.4M
400,000
$81.00
4.6M
Nearhos Barry R
Award
Jan 15, 2026
$0.00
474
$0.00
31,079
Plunkett Debora A
Sell
Nov 07, 2025
$125,784.02
1,700
$73.99
16,833
JANA Partners Management, LP
Sell
Nov 06, 2025
$75.5M
1.0M
$75.45
5.0M
Carvalho Orlando D
Award
Oct 22, 2025
$0.00
2,362
$0.00
59,448
LANCE HOWARD L
Award
Oct 22, 2025
$0.00
2,362
$0.00
32,104
Nearhos Barry R
Award
Oct 22, 2025
$0.00
2,362
$0.00
30,605
BUA JEAN A
Award
Oct 22, 2025
$0.00
2,362
$0.00
7,815
DEMURO GERARD J
Award
Oct 22, 2025
$0.00
2,362
$0.00
17,481
DISBROW LISA S
Award
Oct 22, 2025
$0.00
2,362
$0.00
31,236
JANA Partners Management, LP
Award
Oct 22, 2025
$0.00
2,362
$0.00
6.0M
Munro Douglas
VP, CAO
Sell
Sep 16, 2025
$4,918.08
67
$73.40
16,007
Ratner Steven
EVP, CHRO
Sell
Aug 20, 2025
$446,312.30
7,000
$63.76
33,801
Ballhaus William L
Chairman, President & CEO
Sell
Aug 19, 2025
$841,255.20
13,050
$64.46
374,976
Farnsworth David E.
EVP, CFO
Sell
Aug 19, 2025
$488,121.41
7,572
$64.46
161,326
Ratner Steven
EVP, CHRO
Sell
Aug 19, 2025
$111,845.04
1,735
$64.46
40,801
KUPINSKY STUART
EVP, CLO & Corp Sec
Sell
Aug 19, 2025
$78,646.08
1,220
$64.46
70,297
Farnsworth David E.
EVP, CFO
Sell
Aug 18, 2025
$488,163.13
7,339
$66.52
168,898
Ratner Steven
EVP, CHRO
Sell
Aug 18, 2025
$111,813.90
1,681
$66.52
42,536
Ballhaus William L
Chairman, President & CEO
Sell
Aug 18, 2025
$691,436.94
10,395
$66.52
388,026
KUPINSKY STUART
EVP, CLO & Corp Sec
Sell
Aug 18, 2025
$78,622.27
1,182
$66.52
71,517
Ballhaus William L
Chairman, President & CEO
Award
Aug 15, 2025
$0.00
44,940
$0.00
398,421
KUPINSKY STUART
EVP, CLO & Corp Sec
Award
Aug 15, 2025
$0.00
9,865
$0.00
72,699