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Mercury Systems
MRCY

Overview Fund Activity

281 hedge funds and large institutions have $3.5B invested in Mercury Systems in 2025 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 116 increasing their positions, 74 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
281
Holders Change
+29
Holders Change %
+11.51%
% of All Funds
3.77%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
54
Increased
116
Reduced
74
Closed
22
Calls
$6.47M
Puts
$4.53M
Net Calls
+$1.94M
Net Calls Change
+$2.25M

Top Buyers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
$52.2M
2
Loomis, Sayles & Company
Loomis, Sayles & Company
Massachusetts
$53.5M
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
$29.8M
4
EA
Emerald Advisers
Pennsylvania
$24.6M
5
SAM
Silvercrest Asset Management
New York
$20.9M

Top Sellers

1
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
$294K
2
William Blair Investment Management
William Blair Investment Management
Illinois
$253M
3
BlackRock
BlackRock
New York
$444M
4
Marshall Wace
Marshall Wace
United Kingdom
$3.66M
5
SCM
Scopia Capital Management
New York
$24.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
COPPSERS
151
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$702K +$48.5K +900 +7%
American Century Companies
152
American Century Companies
Missouri
$697K -$2.69M -49,935 -79%
GF
153
Gabelli Funds
New York
$690K – – –
LJAC
154
L.J. Altfest & Co
New York
$688K -$260K -4,827 -27%
Bank of Montreal
155
Bank of Montreal
Ontario, Canada
$668K -$2.96K -55 -0.4%
PFSRSONJ
156
Police & Firemen's Retirement System of New Jersey
New Jersey
$646K +$27.6K +512 +4%
OFG
157
OmniStar Financial Group
North Carolina
$639K -$191K -3,542 -23%
TD Asset Management
158
TD Asset Management
Ontario, Canada
$631K +$631K +11,718 New
OPERF
159
Oregon Public Employees Retirement Fund
Oregon
$628K – – –
ProShare Advisors
160
ProShare Advisors
Maryland
$625K -$33.6K -624 -5%
GIM
161
Glenmede Investment Management
Pennsylvania
$624K +$624K +11,584 New
KK
162
KLP Kapitalforvaltning
Norway
$598K +$26.9K +500 +5%
STA
163
Summit Trail Advisors
New York
$582K +$582K +10,805 New
WG
164
Winton Group
United Kingdom
$565K +$565K +10,493 New
Mitsubishi UFJ Asset Management
165
Mitsubishi UFJ Asset Management
Japan
$561K -$72.4K -1,344 -11%
Group One Trading
166
Group One Trading
Illinois
$552K +$455K +8,454 +472%
NIM
167
Needham Investment Management
New York
$539K -$943K -17,500 -64%
YC
168
Yarbrough Capital
Tennessee
$538K – – –
GCA
169
Greenwood Capital Associates
South Carolina
$537K -$5.98K -111 -1%
KeyBank National Association
170
KeyBank National Association
Ohio
$499K -$90K -1,671 -15%
HPCM
171
Hunter Perkins Capital Management
Illinois
$477K -$32.3K -600 -6%
IFU
172
iSAM Funds (UK)
United Kingdom
$472K +$144K +2,676 +44%
Zurich Cantonal Bank
173
Zurich Cantonal Bank
Switzerland
$457K -$296K -5,503 -39%
Holocene Advisors
174
Holocene Advisors
New York
$429K -$7.38K -137 -2%
HIIFS
175
Harel Insurance Investments & Financial Services
Israel
$417K +$83.2K +1,547 +25%
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