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MRCY

Mercury Systems Inc
$123.07 -3.14 (-2.49%) At close · Jul 6
Market Cap
$7.39B
Shares
60,043,283

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 358
Total Value: $4,557,662,155
Total Shares: 62,474,765
Showing 1–100 of 368 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Superinvestors Holding MRCY

All superinvestors →
Joel Greenblatt $497,392

Holder Concentration

Across 356 13F filers
Top Holder
14.3%
Jun 2023 → Mar 2026 · range 10.2% – 14.3%
of institutional value
Top 5
34.8%
Jun 2023 → Mar 2026 · range 34.8% – 49.9%
of institutional value
Top 10
46.7%
Jun 2023 → Mar 2026 · range 46.7% – 63.5%
of institutional value
HHI
391
Jun 2023 → Mar 2026 · range 391 – 606
Broadly held
Showing 100 of 368
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $650,380,889 14.27% 8,920,325
Mid JANA Partners Management, LP $299,472,283 6.57% 4,107,424
Mega STATE STREET CORP $281,849,572 6.18% 3,865,719
Mega Invesco Ltd. $178,015,448 3.91% 2,441,578
Mega VANGUARD CAPITAL MANAGEMENT LLC $175,262,370 3.85% 2,403,818
Mid Conestoga Capital Advisors, LLC $139,884,469 3.07% 1,918,591
Mega T. Rowe Price Investment Management, Inc. $115,185,551 2.53% 1,579,832
Mega GEODE CAPITAL MANAGEMENT, LLC $111,239,952 2.44% 1,525,716
Mega DIMENSIONAL FUND ADVISORS LP $89,531,655 1.96% 1,227,975
Mega GOLDMAN SACHS GROUP INC $87,573,072 1.92% 1,201,112
Mega FIRST TRUST ADVISORS LP $84,632,105 1.86% 1,160,775
Mega PRICE T ROWE ASSOCIATES INC /MD/ $74,995,881 1.65% 1,028,609
Mega AMERIPRISE FINANCIAL INC $72,312,719 1.59% 991,808
Mega Fisher Asset Management, LLC $71,478,557 1.57% 980,367
Mid SEGALL BRYANT & HAMILL, LLC $68,158,017 1.50% 934,824
Mega NEUBERGER BERMAN GROUP LLC $66,378,575 1.46% 910,418
Mega FMR LLC $65,886,431 1.45% 903,668
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $62,662,280 1.37% 859,447
Mega VAN ECK ASSOCIATES CORP $62,056,981 1.36% 851,145
Mega RAYMOND JAMES FINANCIAL INC $57,892,652 1.27% 794,029
Mega WELLINGTON MANAGEMENT GROUP LLP $55,085,326 1.21% 755,525
Mega JENNISON ASSOCIATES LLC $50,170,391 1.10% 688,114
Mega MORGAN STANLEY $48,946,735 1.07% 671,331
Large LOOMIS SAYLES & CO L P $47,094,901 1.03% 645,932
Large BAMCO INC /NY/ $47,031,762 1.03% 645,066
Large LORD, ABBETT & CO. LLC $46,842,196 1.03% 642,466
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $46,368,572 1.02% 635,970
Large VOYA INVESTMENT MANAGEMENT LLC $44,420,854 0.97% 609,256
Mid EMERALD ADVISERS, LLC $43,404,343 0.95% 595,314
Mid KENNEDY CAPITAL MANAGEMENT LLC $42,962,144 0.94% 589,249
Mega AMERICAN CENTURY COMPANIES INC $42,498,874 0.93% 582,895
Mid SNYDER CAPITAL MANAGEMENT L P $42,335,483 0.93% 580,654
Large Allspring Global Investments Holdings, LLC $41,810,675 0.92% 573,456
Mega NORTHERN TRUST CORP Bank $39,959,271 0.88% 548,063
Mega ROYAL BANK OF CANADA Bank $38,838,206 0.85% 532,687
Mega FRANKLIN RESOURCES INC $33,074,380 0.73% 453,633
Large BESSEMER GROUP INC $32,786,819 0.72% 449,689
Mid OBERWEIS ASSET MANAGEMENT INC/ $28,509,486 0.63% 391,023
Mid EMERALD MUTUAL FUND ADVISERS TRUST Mutual Fund $27,375,663 0.60% 375,472
Large SEI INVESTMENTS CO $27,049,026 0.59% 370,992
Large Artisan Partners Limited Partnership $25,829,461 0.57% 354,265
Mega VANGUARD FIDUCIARY TRUST CO Bank $25,461,994 0.56% 349,225
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $23,862,568 0.52% 327,288
Mega Bank of New York Mellon Corp Bank $22,922,827 0.50% 314,399
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $22,614,348 0.50% 310,168
Large MetLife Investment Management, LLC $21,562,330 0.47% 295,739
Mega BANK OF AMERICA CORP /DE/ Bank $21,502,470 0.47% 294,918
Large Driehaus Capital Management LLC $21,481,327 0.47% 294,628
Mega CITADEL ADVISORS LLC $21,352,859 0.47% 292,866
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $21,037,451 0.46% 288,540
Large FIFTH THIRD BANCORP Bank $19,474,333 0.43% 267,101
Mid Aristotle Capital Boston, LLC $19,424,463 0.43% 266,417
Mega PRINCIPAL FINANCIAL GROUP INC $18,745,160 0.41% 257,100
Mega JPMORGAN CHASE & CO $18,073,439 0.40% 247,887
Mega UBS Group AG $16,993,204 0.37% 233,071
Mega Nuveen, LLC $16,899,370 0.37% 231,784
Mega VICTORY CAPITAL MANAGEMENT INC $16,449,808 0.36% 225,618
Mid ROYCE & ASSOCIATES LP $16,038,741 0.35% 219,980
Large WCM INVESTMENT MANAGEMENT, LLC $15,990,912 0.35% 219,324
Mid MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC $15,438,838 0.34% 211,752
Mid AXIOM INVESTORS LLC /DE $15,388,967 0.34% 211,068
Large KING LUTHER CAPITAL MANAGEMENT CORP $15,313,797 0.34% 210,037
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $14,117,344 0.31% 193,627
Large Public Sector Pension Investment Board Pension $13,777,073 0.30% 188,960
Mega TWO SIGMA INVESTMENTS, LP $11,816,450 0.26% 162,069
Mega BNP PARIBAS ARBITRAGE, SA $11,328,755 0.25% 155,380
Small Freshford Capital Management, LLC $11,232,878 0.25% 154,065
Mega Legal & General Group Plc $11,056,435 0.24% 151,645
Mega RHUMBLINE ADVISERS $10,556,930 0.23% 144,794
Large Man Group plc $10,551,826 0.23% 144,724
Large Thrivent Financial for Lutherans $10,196,973 0.22% 139,857
Mid PEREGRINE CAPITAL MANAGEMENT LLC $9,928,519 0.22% 136,175
Large Vident Advisory, LLC $9,336,779 0.20% 128,059
Mid Penn Capital Management Company, LLC $9,317,095 0.20% 127,789
Mega DEUTSCHE BANK AG\ Bank $9,302,731 0.20% 127,592
Mega WELLS FARGO & COMPANY/MN $9,020,351 0.20% 123,719
Micro Heights Point Management, LP $8,887,583 0.20% 121,898
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $8,470,096 0.19% 116,172
Large Qube Research & Technologies Ltd $8,106,862 0.18% 111,190
Large Russell Investments Group, Ltd. $8,047,219 0.18% 110,372
Small AGMAN CAPITAL LLC $7,920,359 0.17% 108,632
Mega Swiss National Bank Bank $7,794,079 0.17% 106,900
Small Archon Capital Management LLC $6,985,798 0.15% 95,814
Mid Edgestream Partners, L.P. $6,431,245 0.14% 88,208
Large Select Equity Group, L.P. $6,085,506 0.13% 83,466
Large BLAIR WILLIAM & CO/IL $5,744,651 0.13% 78,791
Small MOODY NATIONAL BANK TRUST DIVISION Bank $5,652,135 0.12% 46,204
Large STATE OF WISCONSIN INVESTMENT BOARD $5,577,979 0.12% 76,505
Mid Penserra Capital Management LLC $5,009,863 0.11% 68,713
Mega AQR CAPITAL MANAGEMENT LLC $4,905,382 0.11% 67,280
Large Quantinno Capital Management LP $4,810,383 0.11% 65,977
Mega NORDEA INVESTMENT MANAGEMENT AB $4,695,548 0.10% 64,402
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $4,634,888 0.10% 63,570
Mega ALLIANCEBERNSTEIN L.P. $4,434,094 0.10% 60,816
Large Cerity Partners LLC $4,430,229 0.10% 60,763
Micro 13D Management LLC $4,408,284 0.10% 60,462
Small Candelo Capital Management LP $4,408,138 0.10% 60,460
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,228,780 0.09% 58,000
Mega BARCLAYS PLC $4,215,800 0.09% 57,822
Small DEEPWATER ASSET MANAGEMENT, LLC $4,128,455 0.09% 56,624
Key facts CIK 1049521 CUSIP 589378108 13F (30d) 10 filings 9 filers Visit website Investor relations

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