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Mercury Systems Inc

MRCY
Exchange
Nasdaq
Industry
Electronic Components & Accessories
SEC CIK
0001049521

In the last 90 days, Mercury Systems Inc insiders filed 0 open-market purchases and 16 sales; 393 institutions reported holding it in 13F filings for Q2 2026, worth $8.02B in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Mercury Systems Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
357
+16 vs. Q4 2025
Shares held
65.2M
+6.52M (+11.1%) vs. Q4 2025
Total value
$4.75B
+$463.1M (+10.8%) vs. Q4 2025
New holders
58
134 more added
Sold out
42
120 more reduced

6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRCY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 357 institutions
Q1 2021: 282 institutionsQ2 2021: 255 institutionsQ3 2021: 251 institutionsQ4 2021: 252 institutionsQ1 2022: 253 institutionsQ2 2022: 254 institutionsQ3 2022: 235 institutionsQ4 2022: 236 institutionsQ1 2023: 245 institutionsQ2 2023: 236 institutionsQ3 2023: 217 institutionsQ4 2023: 219 institutionsQ1 2024: 222 institutionsQ2 2024: 232 institutionsQ3 2024: 245 institutionsQ4 2024: 243 institutionsQ1 2025: 253 institutionsQ2 2025: 285 institutionsQ3 2025: 326 institutionsQ4 2025: 347 institutionsQ1 2026: 357 institutionsQ2 2026: 393 institutions
Value heldQ1 2026: $4.75B
Q1 2021: $3.75BQ2 2021: $3.48BQ3 2021: $2.51BQ4 2021: $3.14BQ1 2022: $3.77BQ2 2022: $3.65BQ3 2022: $2.33BQ4 2022: $2.61BQ1 2023: $2.94BQ2 2023: $1.95BQ3 2023: $2.22BQ4 2023: $2.23BQ1 2024: $1.84BQ2 2024: $1.75BQ3 2024: $2.33BQ4 2024: $2.66BQ1 2025: $2.72BQ2 2025: $3.50BQ3 2025: $5.02BQ4 2025: $4.72BQ1 2026: $4.75BQ2 2026: $8.02B
Institutions holding MRCY and their total value by quarter
QuarterHoldersValue
Q2 2026393$8.02B
Q1 2026357$4.75B
Q4 2025347$4.72B
Q3 2025326$5.02B
Q2 2025285$3.50B
Q1 2025253$2.72B
Q4 2024243$2.66B
Q3 2024245$2.33B
Q2 2024232$1.75B
Q1 2024222$1.84B
Q4 2023219$2.23B
Q3 2023217$2.22B
Q2 2023236$1.95B
Q1 2023245$2.94B
Q4 2022236$2.61B
Q3 2022235$2.33B
Q2 2022254$3.65B
Q1 2022253$3.77B
Q4 2021252$3.14B
Q3 2021251$2.51B
Q2 2021255$3.48B
Q1 2021282$3.75B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q4 2025.

Institutions holding MRCY in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Picton Mahoney Asset Management6,190$451.3K0.00%+1,450+30.6%Added
Nomura Holdings Inc5,893$429.7K0.00%+5,893New
CI Private Wealth, LLC5,892$429.3K0.00%−1,919−24.6%Reduced
DekaBank Deutsche Girozentrale5,826$429.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)5,824$424.6K0.01%+4,672+405.6%Added
STRS Ohio5,500$401.0K0.00%−7,500−57.7%Reduced
Cambridge Investment Research Advisors, Inc.5,488$400.0K0.00%+520+10.5%Added
F/M Investments LLC5,486$400.0K0.03%+5,486New
Algert Global LLC5,460$398.1K0.01%+5,460New
IMC-Chicago, LLC5,422$395.3K0.01%+5,422New
Keybank National Association5,216$380.3K0.00%+869+20.0%Added
Ensign Peak Advisors, Inc5,152$375.6K0.00%00.0%Unchanged
Evergreen Capital Management LLC5,090$371.1K0.01%+709+16.2%Added
HighTower Advisors, LLC5,062$369.1K0.00%+5,062New
Xponance, Inc.5,033$367.0K0.00%+942+23.0%Added
Bridgefront Capital, LLC4,914$358.3K0.09%+4,914New
Danske Bank A/S4,603$335.6K0.00%+1,657+56.2%Added
Capstone Investment Advisors, LLC4,516$329.3K0.00%−2,423−34.9%Reduced
Ameritas Investment Partners, Inc.4,495$327.7K0.01%+144+3.3%Added
Alamea Verwaltungs GmbH4,354$317.4K0.24%+1,140+35.5%Added
Wealth Enhancement Advisory Services, LLC7,423$311.0K0.00%+1,655+28.7%Added
Centaurus Financial, Inc.4,196$306.0K0.01%+29+0.7%Added
Steward Partners Investment Advisory, LLC4,181$304.8K0.00%+120+3.0%Added
Intrua Financial, LLC4,017$292.9K0.03%00.0%Unchanged
Moors & Cabot, Inc.3,900$284.3K0.01%−500−11.4%Reduced
O'Shaughnessy Asset Management, LLC3,864$281.7K0.00%−2,866−42.6%Reduced
Blackstone Group Inc.3,799$277.0K0.00%+3,799New
CIBC Bancorp USA Inc.3,467$252.8K0.00%+3,467New
Panagora Asset Management Inc3,400$247.9K0.00%+38+1.1%Added
Highland Capital Management, LLC3,300$240.6K0.01%+3,300New
NorthCrest Asset Manangement, LLC3,233$240.0K0.01%−25−0.8%Reduced
Y-Intercept (Hong Kong) Ltd3,213$234.3K0.00%+3,213New
DnB Asset Management AS3,208$233.9K0.00%+3,208New
Hunter Perkins Capital Management, LLC3,190$233.0K0.05%−2,815−46.9%Reduced
Swiss Life Asset Management Ltd3,194$232.9K0.00%+3,194New
Blueshift Asset Management, LLC3,104$226.3K0.07%+3,104New
Abel Hall, LLC3,067$223.6K0.05%+3,067New
Winton Group Ltd3,057$222.9K0.01%+3,057New
Crossmark Global Holdings, Inc.3,043$221.9K0.00%−653−17.7%Reduced
Journey Strategic Wealth LLC3,009$219.4K0.01%+27+0.9%Added
Mariner, LLC2,993$218.2K0.00%+2,993New
Engineers Gate Manager LP2,980$217.3K0.00%+2,980New
Mirae Asset Global Investments Co., Ltd.2,949$215.0K0.00%+1,897+180.3%Added
Abacus Planning Group, Inc.2,904$211.7K0.03%00.0%Unchanged
Hilltop National Bank2,835$206.7K0.05%+227+8.7%Added
Natixis2,814$205.2K0.00%−197−6.5%Reduced
Syon Capital LLC2,752$200.6K0.01%+2,752New
Walleye Capital LLC2,240$163.3K0.00%−86−3.7%Reduced
Smartleaf Asset Management LLC2,246$156.9K0.01%+152+7.3%Added
Nisa Investment Advisors, LLC2,145$156.4K0.00%+276+14.8%Added
Pinnacle Wealth Planning Services, Inc.2,038$148.6K0.02%+23+1.1%Added
KBC Group NV1,886$138.0K0.00%00.0%Unchanged
GAMMA Investing LLC1,829$133.4K0.01%+48+2.7%Added
Simplex Trading, LLC1,294$94.3K0.00%+1,294New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,264$92.2K0.00%+318+33.6%Added
Bayforest Capital Ltd1,037$75.6K0.08%−753−42.1%Reduced
State of Wyoming1,010$73.6K0.01%−386−27.7%Reduced
Caitong International Asset Management Co., Ltd980$71.5K0.01%+980New
Advisor Group Holdings, Inc.965$70.3K0.00%+40+4.3%Added
Sittner & Nelson, LLC918$66.9K0.02%+918New
Hantz Financial Services, Inc.879$64.0K0.00%+625+246.1%Added
Signaturefd, LLC817$59.6K0.00%+13+1.6%Added
Quarry LP740$54.0K0.01%+740New
EverSource Wealth Advisors, LLC727$53.0K0.00%−69−8.7%Reduced
Allworth Financial LP702$51.2K0.00%+9+1.3%Added
GHP Investment Advisors, Inc.700$51.0K0.00%00.0%Unchanged
Eurizon Capital SGR S.p.A.703$49.4K0.00%−810−53.5%Reduced
Quaker Wealth Management, LLC644$47.0K0.01%00.0%Unchanged
Banque Transatlantique SA642$46.8K0.00%+642New
Jones Financial Companies LLLP653$46.6K0.00%−35−5.1%Reduced
Rockefeller Capital Management L.P.636$46.4K0.00%−17−2.6%Reduced
Walleye Trading LLC635$46.3K0.00%+635New
Barrow Hanley Mewhinney & Strauss LLC460$33.5K0.00%+137+42.4%Added
Versant Capital Management, Inc432$31.5K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.420$30.6K0.00%−117−21.8%Reduced
Public Employees Retirement System of Ohio406$29.6K0.00%−66−14.0%Reduced
Coston, McIsaac & Partners396$28.0K0.01%00.0%Unchanged
Salomon & Ludwin, LLC375$27.8K0.00%00.0%Unchanged
Leonteq Securities AG349$25.4K0.00%−130−27.1%Reduced
Kemnay Advisory Services Inc.346$25.2K0.00%+203+142.0%Added
Optiver Holding B.V.331$24.1K0.00%+331New
Group One Trading, L.P.303$22.1K0.00%+303New
Umb Bank N A273$19.9K0.00%+2+0.7%Added
Whittier Trust Co262$19.8K0.00%+169+181.7%Added
Los Angeles Capital Management LLC258$18.8K0.00%−10,699−97.6%Reduced
Farther Finance Advisors, LLC243$18.2K0.00%+109+81.3%Added
Mark Sheptoff Financial Planning, LLC200$16.6K0.01%−900−81.8%Reduced
Massmutual Trust Co FSB212$15.5K0.00%+44+26.2%Added
HM Payson & Co200$14.6K0.00%+200New
Huntington National Bank193$14.1K0.00%+43+28.7%Added
Root Financial Partners, LLC192$14.0K0.00%+15+8.5%Added
Parallel Advisors, LLC181$13.2K0.00%00.0%Unchanged
Parkside Financial Bank & Trust168$12.3K0.00%+1+0.6%Added
Quent Capital, LLC161$11.7K0.00%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA160$11.7K0.00%00.0%Unchanged
Bare Financial Services, Inc158$11.5K0.00%+33+26.4%Added
WPG Advisers, LLC155$11.3K0.01%−2−1.3%Reduced
Cedar Mountain Advisors, LLC152$11.1K0.00%+152New
Matrix Trust Co135$10.0K0.00%−22−14.0%Reduced
Ancora Advisors, LLC135$9.84K0.00%00.0%Unchanged