Mercury SystemsMRCY

13F holders, Q2 2024 (June 30)
232holders +10
34new positions
24sold out
3famous investors
$27.00avg. 13F price*

At the end of Q2 2024, 232 institutions reported holding Mercury Systems Inc. (MRCY) in their 13F filings, up 10 from Q1 2024. 34 opened new positions and 24 sold out. The largest holders were BlackRock Inc. ($237.8M), JANA Partners Management, LP ($186.9M) and William Blair Investment Management, LLC ($173.2M). 3 famous investors held it, including Jeff Smith (1.4% of Starboard Value's portfolio), Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).

Company
Mercury Systems Inc.
CUSIP
589378108
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 222Q1 2024Q2 2024: 232Q2 2024Q3 2024: 245Q3 2024Q4 2024: 243Q4 2024Q1 2025: 253Q1 2025Q2 2025: 285Q2 2025Q3 2025: 326Q3 2025Q4 2025: 347Q4 2025Q1 2026: 357Q1 2026Q2 2026: 392Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions34$13.5M
Exits24$16.6M

All 13F filers, Q1 2024 → Q2 2024: 5,879,619 shares bought and 3,427,646 shares sold, net +2,451,973 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 232 holders

BlackRock Inc. 0.01% Add +18.9% 8,808,929 $237.8M
JANA Partners Management, LP 10.93% No change 6,924,896 $186.9M
William Blair Investment Management, LLC 0.45% Add +0.6% 6,416,449 $173.2M
Vanguard Group Inc. 0.00% Add +7.5% 5,715,286 $154.3M
State Street Corp. 0.00% Reduce -11.2% 3,327,335 $89.8M
Starboard Value 1.44% Reduce -13.9% 2,294,000 $61.9M
Dimensional Fund Advisors LP 0.01% Add +1.0% 2,027,158 $54.7M
Victory Capital Management Inc. 0.05% Reduce -3.0% 1,813,698 $49.0M
Westwood Holdings Group Inc. 0.32% Reduce -6.8% 1,448,303 $39.1M
Segall Bryant & Hamill, LLC 0.63% Reduce -12.2% 1,310,580 $35.4M
Conestoga Capital Advisors, LLC 0.53% Add +3.1% 1,308,965 $35.3M
Scopia Capital Management LP 5.22% Add +23.3% 1,306,118 $35.3M
Geode Capital Management, LLC 0.00% Add +46.6% 1,274,959 $34.4M
Fuller & Thaler Asset Management, Inc. 0.14% Reduce -0.9% 1,225,954 $33.1M
Baron Capital (BAMCO) 0.09% Reduce -34.9% 1,205,654 $32.5M
Snyder Capital Management L P 0.69% Add +34.7% 1,147,564 $31.0M
Neuberger Berman Group LLC 0.02% Add +41.1% 1,000,039 $27.0M
Morgan Stanley 0.00% Add +57.5% 805,544 $21.7M
Royal Bank of Canada 0.01% Reduce -0.8% 805,217 $21.7M
Charles Schwab Investment Management Inc. 0.00% Add +32.8% 649,251 $17.5M
Invesco Ltd. 0.00% Add +0.7% 581,994 $15.7M
Bank of New York Mellon Corp 0.00% Reduce -9.4% 567,242 $15.3M
Sasco Capital Inc. / CT/ 2.14% Add +10.5% 561,030 $15.1M
Clearline Capital LP 1.24% Add +18.4% 526,611 $14.2M
Aristotle Capital Boston, LLC 0.48% Reduce -4.7% 524,623 $14.2M
Staley Capital Advisers Inc. 0.62% Add +10.8% 497,870 $13.4M
Crestline Management, L.P. 1.01% Add +75.9% 478,973 $12.9M
WCM Investment Management, LLC 0.03% Reduce -0.2% 449,704 $12.0M
Goldman Sachs Group Inc. 0.00% Add +332.1% 402,984 $10.9M
Two Sigma Investments, LP 0.03% Add +8.5% 381,684 $10.3M
Mesirow Institutional Investment Management, Inc. 0.88% Add +14.6% 373,784 $10.1M
Ameriprise Financial Inc. 0.00% Reduce -7.1% 368,430 $9.9M
Northern Trust Corp. 0.00% Add +6.5% 359,219 $9.7M
Sei Investments Co. 0.01% Add +28.8% 279,327 $7.5M
CenterBook Partners LP 0.46% Add +5.2% 277,198 $7.5M
Prelude Capital Management, LLC 0.60% Add +28.6% 265,460 $7.2M
Loomis Sayles & Co. L P 0.01% Add +0.7% 261,767 $7.1M
Principal Financial Group Inc. 0.00% Reduce -4.4% 257,867 $7.0M
Two Sigma Advisers, LP 0.02% Add +13.1% 255,900 $6.9M
Nuveen Asset Management, LLC 0.00% Reduce -19.2% 226,429 $6.1M
Royce & Associates LP 0.06% Add +2.8% 219,359 $5.9M
Bank of America Corp. 0.00% Add +36.8% 214,930 $5.8M
D. E. Shaw & Co. 0.01% Reduce -11.5% 205,949 $5.6M
Brandywine Global Investment Management, LLC 0.04% Add +87.1% 187,528 $5.1M
Boothbay Fund Management, LLC 0.16% Add +28.7% 175,053 $4.7M
Van Eck Associates Corp. 0.01% Add +52.1% 171,618 $4.6M
Rhumbline Advisers 0.00% Add +24.2% 167,840 $4.5M
Legal & General Group Plc 0.00% Add +2.4% 163,520 $4.4M
Roubaix Capital, LLC 2.33% New 136,479 $3.7M
Redwood Investment Management, LLC 0.32% Reduce -2.5% 108,329 $3.7M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +122.0% 131,394 $3.5M
13D Management LLC 2.59% Reduce -18.5% 131,286 $3.5M
Comerica Bank 0.01% Add +0.2% 126,114 $3.4M
Marshall Wace, LLP 0.00% Reduce -35.0% 119,854 $3.2M
Public Sector Pension Investment Board 0.02% Add +7.3% 114,899 $3.1M
Healthcare of Ontario Pension Plan Trust Fund 0.01% New 114,065 $3.1M
King Luther Capital Management Corp. 0.01% Add +13.7% 108,177 $2.9M
Swiss National Bank 0.00% Reduce -5.5% 99,200 $2.7M
Citigroup Inc. 0.00% Reduce -41.4% 95,763 $2.6M
ExodusPoint Capital Management, LP 0.03% Reduce -17.6% 88,553 $2.4M
Needham Investment Management LLC 0.19% Add +45.8% 87,500 $2.4M
Western Standard LLC 2.26% New 80,768 $2.2M
Blair William & Co. 0.01% Reduce -34.9% 77,271 $2.1M
B. Metzler seel. Sohn & Co. AG 0.02% No change 76,501 $2.1M
Trexquant Investment LP 0.03% Add +276.3% 71,324 $1.9M
Voloridge Investment Management, LLC 0.01% Reduce -53.2% 71,037 $1.9M
Alliancebernstein L.P. 0.00% Add +177.4% 68,435 $1.8M
Mutual of America Capital Management LLC 0.02% Reduce -4.2% 68,309 $1.8M
State of Wisconsin Investment Board 0.00% Reduce -0.5% 67,310 $1.8M
Raymond James & Associates 0.00% Add +2.8% 66,736 $1.8M
Steel Partners Holdings L.P. 2.27% No change 66,543 $1.8M
Squarepoint Ops LLC 0.01% Add +38.2% 66,209 $1.8M
M&T Bank Corp 0.01% Add +46.6% 63,439 $1.7M
New York State Teachers Retirement System 0.00% No change 61,611 $1.7M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% — 58,670 $1.6M
Prudential Financial Inc. 0.00% Add +0.9% 57,988 $1.6M
Cerity Partners LLC 0.00% Reduce -1.4% 56,559 $1.5M
CANADA LIFE ASSURANCE Co 0.00% Add +15.3% 53,112 $1.4M
Public Employees Retirement System of Ohio 0.01% Reduce -36.5% 52,785 $1.4M
BNP Paribas Financial Markets 0.00% Reduce -33.3% 51,032 $1.4M
Susquehanna International Group, LLP 0.00% Reduce -46.4% 49,642 $1.3M
California State Teachers Retirement System 0.00% Reduce -7.3% 49,540 $1.3M
Wellington Management Group LLP 0.00% Reduce -18.8% 46,129 $1.2M
Deutsche Bank AG 0.00% Add +83.6% 45,598 $1.2M
JPMorgan Chase & Co. 0.00% Add +132.1% 44,489 $1.2M
Thrivent Financial for Lutherans 0.00% Reduce -4.3% 43,354 $1.2M
Jump Financial, LLC 0.02% Reduce -46.1% 42,174 $1.1M
Ironwood Investment Management LLC 0.59% Reduce -0.2% 40,722 $1.1M
LPL Financial LLC 0.00% Reduce -2.3% 40,247 $1.1M
Moody National Bank Trust Division 0.08% Add +4.5% 39,423 $1.1M
T. Rowe Price Associates Inc. 0.00% Add +15.4% 39,282 $1.1M
Zions Bancorporation, N.A. 0.08% Reduce -3.3% 37,431 $1.0M
Oppenheimer & Co. Inc. 0.02% Reduce -0.6% 36,998 $999K
Wells Fargo & Company 0.00% Add +480.1% 36,219 $978K
Occudo Quantitative Strategies LP 0.16% Add +260.8% 33,400 $901K
LaFleur & Godfrey LLC 0.13% Reduce -14.2% 32,370 $874K
Schonfeld Strategic Advisors LLC 0.01% Add +84.1% 32,258 $871K
First Trust Advisors LP 0.00% Add +21.1% 32,084 $866K
Corebridge Financial, Inc. 0.00% — 31,689 $856K
Barclays PLC 0.00% Add +25.7% 30,731 $829K
State of Alaska, Department of Revenue 0.01% Reduce -3.7% 30,662 $827K
New York State Common Retirement Fund 0.00% Reduce -16.4% 30,257 $817K
RBF Capital, LLC 0.05% New 30,000 $810K
Manufacturers Life Insurance Company, The 0.00% Add +232.7% 29,411 $794K
Illinois Municipal Retirement Fund 0.01% Reduce -1.8% 29,249 $789K
Natixis 0.00% Add +19.9% 28,156 $760K
Camelot Portfolios, LLC 0.43% Reduce -10.3% 28,124 $759K
Vident Advisory, LLC 0.02% Add +72.5% 27,734 $749K
Louisiana State Employees Retirement System 0.01% Add +1.5% 26,300 $710K
Hunter Perkins Capital Management, LLC 0.14% Add +24.5% 25,271 $682K
Bank of Montreal 0.00% Add +89.8% 21,478 $676K
Janus Henderson Group PLC 0.00% Reduce -1.2% 24,025 $649K
South Dakota Investment Council 0.01% No change 21,678 $585K
Allianz Asset Management GmbH 0.00% Reduce -58.1% 21,500 $580K
Yousif Capital Management, LLC 0.01% Reduce -11.1% 20,983 $566K
Ensign Peak Advisors, Inc 0.00% No change 20,002 $540K
Teachers Retirement System of the State of Kentucky 0.00% No change 19,640 $530K
Dark Forest Capital Management LP 0.10% New 19,494 $526K
Balyasny Asset Management L.P. 0.00% New 18,540 $500K
Voya Investment Management LLC 0.00% New 18,343 $495K
Maryland State Retirement & Pension System 0.01% Reduce -21.0% 18,209 $491K
American Century Companies Inc. 0.00% Add +134.2% 18,114 $489K
Amalgamated Bank 0.00% Reduce -10.5% 16,041 $433K
Jane Street Group, LLC 0.00% Reduce -93.8% 15,971 $431K
Sugar Maple Asset Management, LLC 0.39% Add +25.0% 15,000 $405K
SG Americas Securities, LLC 0.00% New 14,864 $401K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% Add +26.6% 14,658 $396K
State Board of Administration of Florida Retirement System 0.00% Reduce -75.1% 14,269 $385K
Lombard Odier Asset Management (USA) Corp 0.17% Reduce -6.6% 14,224 $384K
Arizona State Retirement System 0.00% Reduce -3.6% 14,127 $381K
State of Tennessee, Department of Treasury 0.00% No change 14,032 $379K
MetLife Investment Management, LLC 0.00% Add +1221.6% 13,824 $373K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +16.6% 12,900 $348K
Gabelli Funds LLC 0.00% Add +8.4% 12,859 $347K
Oregon Public Employees Retirement Fund 0.01% Reduce -9.3% 12,662 $342K
Natixis Advisors, LLC 0.00% Reduce -17.3% 12,431 $336K
State of Wyoming 0.06% Add +849.4% 12,390 $334K
UBS Group AG 0.00% Reduce -60.1% 12,388 $334K
Rafferty Asset Management, LLC 0.00% Reduce -7.5% 12,357 $334K
Altfest L J & Co. Inc. 0.04% New 11,677 $315K
UniSuper Management Pty Ltd 0.00% No change 11,601 $313K
Cwm, LLC 0.00% Add +118.5% 11,493 $310K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -0.3% 11,253 $304K
Envestnet Asset Management Inc. 0.00% Add +34.4% 11,183 $302K
Hennion & Walsh Asset Management, Inc. 0.02% Add +41.0% 11,130 $300K
Aigen Investment Management, LP 0.06% New 11,009 $297K
Deerfield Management Company, L.P. 0.01% New 10,569 $285K
Keybank National Association 0.00% Add +0.2% 10,314 $278K
Aquatic Capital Management LLC 0.01% Reduce -17.2% 10,100 $273K
Quantinno Capital Management LP 0.00% New 9,618 $260K
Walleye Capital LLC 0.00% Add +414.8% 9,540 $257K
Iridian Asset Management LLC 0.06% Add +11.4% 9,464 $255K
Pathstone Holdings, LLC 0.00% Reduce -0.7% 8,242 $222K
Cim Investment Management Inc. 0.07% Reduce -19.2% 8,072 $218K
Creative Planning 0.00% New 7,970 $215K
Public Employees Retirement Association of Colorado 0.00% No change 7,486 $202K
Quantbot Technologies LP 0.01% Reduce -60.2% 6,508 $176K
Headlands Technologies LLC 0.02% Add +625.7% 5,726 $155K
Simplex Trading, LLC 0.00% New 5,386 $145K
Ameritas Investment Partners, Inc. 0.01% New 5,371 $145K
Lazard Asset Management LLC 0.00% Reduce -11.9% 5,131 $138K
DekaBank Deutsche Girozentrale 0.00% Reduce -11.9% 5,131 $137K
AlphaQuest LLC 0.02% Add +10995.5% 4,882 $132K
Osaic Holdings, Inc. 0.00% Reduce -5.7% 4,631 $125K
CIBC Private Wealth Group LLC 0.00% Add +35.1% 3,435 $103K
nVerses Capital, LLC 0.05% New 3,000 $81K
PNC Financial Services Group, Inc. 0.00% Reduce -28.9% 2,489 $67K
Harel Insurance Investments & Financial Services Ltd. 0.00% Add +216.0% 2,373 $64K
Peregrine Capital Management LLC 0.00% No change 2,134 $58K
FMR LLC 0.00% Add +44.3% 2,093 $56K
Creative Financial Designs Inc. 0.00% Reduce -18.5% 1,875 $51K
Russell Investments Group, Ltd. 0.00% Add +385.5% 1,840 $50K
EntryPoint Capital, LLC 0.02% Reduce -72.6% 1,713 $46K
KBC Group NV 0.00% No change 1,671 $45K
US Bancorp \de 0.00% Add +20.9% 1,660 $45K
Covestor Ltd 0.03% Add +4.6% 1,504 $40K
Ridgewood Investments LLC 0.02% New 1,350 $36K
Quadrant Capital Group LLC 0.00% Add +121.1% 1,300 $35K
Nisa Investment Advisors, LLC 0.00% Add +1126.3% 1,165 $31K
Fifth Third Bancorp 0.00% Add +4.6% 1,129 $30K
Hilltop National Bank 0.01% Add +4.7% 1,027 $28K
Whittier Trust Co. 0.00% No change 1,012 $27K
Group One Trading LLC 0.00% New 890 $24K
EverSource Wealth Advisors, LLC 0.00% Add +155.3% 646 $23K
Allworth Financial LP 0.00% Add +2840.9% 647 $22K
GHP Investment Advisors, Inc. 0.00% No change 700 $19K
Innealta Capital, LLC 0.01% New 590 $16K
Coston, McIsaac & Partners 0.00% No change 396 $10K
Leonteq Securities AG 0.00% Add +6.8% 361 $10K
Towarzystwo Funduszy Inwestycyjnych Pzu SA 0.00% No change 360 $10K
GAMMA Investing LLC 0.00% Reduce -35.9% 345 $9K
Tower Research Capital LLC (TRC) 0.00% Reduce -83.3% 291 $8K
Blue Trust, Inc. 0.00% Add +48.0% 253 $7K
Signaturefd, LLC 0.00% Add +92.3% 273 $7K
Smartleaf Asset Management LLC 0.00% New 216 $6K
Parallel Advisors, LLC 0.00% Add +62.1% 201 $5K
LRI Investments, LLC 0.00% New 158 $4K
HM Payson & Co. 0.00% Reduce -57.1% 150 $4K
NewEdge Advisors, LLC 0.00% No change 150 $4K
Toth Financial Advisory Corp. 0.00% No change 100 $3K
LGT Financial Advisors LLC 0.00% No change 82 $2K
Beaird Harris Wealth Management, LLC 0.00% New 79 $2K
UMB Bank, n.a. 0.00% Add +175.0% 77 $2K
Lindbrook Capital, LLC 0.00% Reduce -69.7% 76 $2K
Bessemer Group Inc. 0.00% New 91 $2K
Venturi Wealth Management, LLC 0.00% New 67 $2K
GPS Wealth Strategies Group, LLC 0.00% No change 65 $2K
Versant Capital Management, Inc 0.00% Reduce -12.1% 58 $2K
Private Wealth Management Group, LLC 0.00% Add +229.4% 56 $2K
Whittier Trust Co. of Nevada Inc. 0.00% No change 45 $1K
Farmers & Merchants Investments Inc. 0.00% No change 35 $945
Farther Finance Advisors, LLC 0.00% Reduce -54.3% 32 $907
Eagle Bay Advisors LLC 0.00% Reduce -25.0% 27 $729
Raffa Wealth Management, LLC 0.00% No change 26 $702
AdvisorNet Financial, Inc 0.00% Reduce -7.1% 26 $702
Sachetta, LLC 0.00% New 20 $693
IFP Advisors, Inc 0.00% New 25 $675
Redwood Wealth Management Group, LLC 0.00% New 20 $540
MV Capital Management, Inc. 0.00% New 20 $540
MassMutual Private Wealth & Trust, FSB 0.00% Reduce -16.7% 20 $540
Arax Advisory Partners 0.00% New 17 $459
JFS Wealth Advisors, LLC 0.00% No change 16 $432
Huntington National Bank 0.00% New 12 $324
Allspring Global Investments Holdings, LLC 0.00% New 12 $323
International Assets Investment Management, LLC 0.00% New 10 $270
Abound Wealth Management 0.00% No change 9 $243
SJS Investment Consulting Inc. 0.00% No change 6 $162
DiNuzzo Private Wealth, Inc. 0.00% Add +20.0% 6 $162
Rothschild Investment LLC 0.00% New 5 $135
Gradient Investments LLC 0.00% New 5 $135
Parkside Financial Bank & Trust 0.00% Reduce -77.8% 4 $108
Larson Financial Group LLC 0.00% Reduce -99.2% 4 $108

"% of holder's portfolio" is MRCY's weight in each manager's 13F, not the share of Mercury Systems Inc. the manager owns.