13F

Stock

Mercury Sys Inc

Ticker not mapped · held by 355 managers

Reported value

$4.38B

Holders

355

+51 new · −42 exited

Holders’ est. mark

−$9.16M

Price effect on 211 books still in the name

Largest holder

$650.4M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.8.92M$650.4M−$861.2KAdded$21.6M
JANA Partners Management, LP4.11M$299.5M−$410.7KCut−$62.6M
State Street3.87M$281.8M−$342.4KAdded$31.9M
VANGUARD PORTFOLIO MANAGEMENT LLC2.91M$212.2MHeld
Invesco Ltd.2.44M$178M−$191.1KAdded$38.5M
VANGUARD CAPITAL MANAGEMENT LLC2.4M$175.3MHeld
Conestoga Capital Advisors, LLC1.92M$139.9M−$191.9KCut−$18.9M
GEODE CAPITAL MANAGEMENT, LLC1.53M$111.3M−$135.4KAdded$11.3M
DIMENSIONAL FUND ADVISORS LP1.23M$89.5M−$138.4KCut−$18.2M
GOLDMAN SACHS GROUP INC1.2M$87.6M−$115.6KAdded$3.14M
FIRST TRUST ADVISORS LP1.16M$84.6M−$116.1KCut−$8.78M
AMERIPRISE FINANCIAL INC991.8K$72.3M−$99.1KCut−$21.8M
Fisher Asset Management, LLC980.4K$71.5M−$86KAdded$8.66M
SEGALL BRYANT & HAMILL, LLC934.8K$68.2M−$63.7KAdded$21.7M
NEUBERGER BERMAN GROUP LLC910.4K$66.3M−$247.8KCut−$8.99M
Fidelity903.7K$65.9M−$90.4KCut−$18.2M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.859.4K$62.7M−$59.9KAdded$19M
RAYMOND JAMES FINANCIAL INC794K$56.3M−$1.89MAdded$4.2M
WELLINGTON MANAGEMENT GROUP LLP755.5K$55.1MNew
JENNISON ASSOCIATES LLC688.1K$50.2M−$45KAdded$17.3M
MORGAN STANLEY671.3K$48.9M−$67.2KCut−$4.4M
LOOMIS SAYLES & CO L P645.9K$47.1M−$64.6KCut−$15.1M
BAMCO INC /NY/645.1K$47M−$64.5KCut−$14M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC636K$46.4M−$63.6KCut−$111.4K
VOYA INVESTMENT MANAGEMENT LLC609.3K$44.4M−$51.1KAdded$7.09M
EMERALD ADVISERS, LLC595.3K$43.4M−$53.1KAdded$4.63M
KENNEDY CAPITAL MANAGEMENT LLC589.2K$43M−$58.9KCut−$5.99M
Allspring Global Investments Holdings, LLC573.5K$42.9M−$734KCut−$14.4M
AMERICAN CENTURY COMPANIES INC582.9K$42.5M−$23.9KAdded$25.1M
SNYDER CAPITAL MANAGEMENT L P580.7K$42.3M−$58.1KCut−$12.3M
NORTHERN TRUST CORP548.1K$40M−$51.8KAdded$2.16M
ROYAL BANK OF CANADA532.7K$38.8M−$52.4KCut−$8.19M
FRANKLIN RESOURCES INC453.6K$33.1M−$20.8KAdded$17.9M
OBERWEIS ASSET MANAGEMENT INC/391K$28.5M−$39.1KCut−$1.72M
EMERALD MUTUAL FUND ADVISERS TRUST375.5K$27.4M−$33.6KAdded$2.84M
SEI INVESTMENTS CO371K$27M−$37.2KCut−$575K
Artisan Partners Limited Partnership354.3K$25.8MNew
VANGUARD FIDUCIARY TRUST CO349.2K$25.5MHeld
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC327.3K$23.9M−$32.7KCut−$48M
Bank of New York Mellon Corp314.4K$22.9M−$31.4KCut−$608.3K
SILVERCREST ASSET MANAGEMENT GROUP LLC310.2K$22.6M−$30.2KAdded$546.6K
MetLife Investment Management, LLC295.7K$21.6M−$26.8KAdded$1.97M
BANK OF AMERICA CORP /DE/294.9K$21.5M−$24.7KAdded$3.49M
Driehaus Capital Management LLC294.6K$21.5M−$29.5KCut−$766.7K
Citadel292.9K$21.4M−$10.4KAdded$13.7M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.288.5K$21M−$17.6KAdded$7.99M
FIFTH THIRD BANCORP267.1K$19.5M−$120Added$19.4M
Aristotle Capital Boston, LLC266.4K$19.5M$10.9KCut−$930.9K
PRINCIPAL FINANCIAL GROUP INC257.1K$18.7M−$25.7KCut−$404.9K
JPMORGAN CHASE & CO247.9K$17.3M−$343.8KAdded$9.35M
UBS Group AG233.1K$17M−$23.3KCut−$1.35M
Nuveen, LLC231.8K$16.9M−$23.2KCut−$8.74M
VICTORY CAPITAL MANAGEMENT INC225.6K$16.4M−$22.6KCut−$162.4K
ROYCE & ASSOCIATES LP220K$16M−$19.7KAdded$1.65M
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC211.8K$15.4M−$21.2KCut−$576.9K
AXIOM INVESTORS LLC /DE211.1K$15.4M−$18.3KAdded$2.02M
WCM INVESTMENT MANAGEMENT, LLC219.3K$15.3M−$875.1KCut−$4.24M
KING LUTHER CAPITAL MANAGEMENT CORP210K$15.3M−$20.3KAdded$518.8K
NEW YORK STATE COMMON RETIREMENT FUND193.6K$14.1M−$13.9KAdded$3.95M
PUBLIC SECTOR PENSION INVESTMENT BOARD189K$13.8M−$18.3KAdded$413.8K
TWO SIGMA INVESTMENTS, LP162.1K$11.8M−$15KAdded$852K
BNP PARIBAS FINANCIAL MARKETS155.4K$11.3M−$15.5KCut−$678.7K
Freshford Capital Management, LLC154.1K$11.2M−$15.4KCut−$2.09M
Legal & General Group Plc151.6K$11.1M−$15.2KCut−$689K
RHUMBLINE ADVISERS144.8K$10.6M−$14.2KAdded$164.8K
Man Group plc144.7K$10.6M−$14.5KCut−$3.47M
PEREGRINE CAPITAL MANAGEMENT LLC136.2K$9.93M−$13.6KCut−$451.9K
Penn Capital Management Company, LLC127.8K$9.34M−$12.3KCut−$4.7M
Vident Advisory, LLC128.1K$9.34M−$12.2KAdded$437.7K
DEUTSCHE BANK AG\127.6K$9.3M−$12.8KCut−$94K
WELLS FARGO & COMPANY/MN123.7K$9.02M−$12.4KCut−$1.86M
Heights Point Management, LP121.9K$8.89M−$12.2KCut−$1.56M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC116.2K$8.47M−$11.6KAdded$27.6K
Qube Research & Technologies Ltd111.2K$8.11M−$5.15KAdded$4.35M
Russell Investments Group, Ltd.110.4K$8.05M−$8.96KAdded$1.49M
AGMAN CAPITAL LLC108.6K$7.92M−$10.9KCut−$1.05M
Swiss National Bank106.9K$7.79M−$10.7KAdded$18.5K
Archon Capital Management LLC95.8K$6.99M−$7.46KAdded$1.54M
Edgestream Partners, L.P.88.2K$6.43M−$4.72KAdded$2.99M
Select Equity Group, L.P.83.5K$6.09M−$7.78KAdded$403.8K
BLAIR WILLIAM & CO/IL78.8K$5.74M−$7.88KCut−$371.5K
STATE OF WISCONSIN INVESTMENT BOARD76.5K$5.58M−$5.62KAdded$1.48M
Quantinno Capital Management LP66K$4.81M−$6.6KCut−$52.5K
Icahn Capital67.3K$4.77M−$86.5KAdded$1.72M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM63.6K$4.63M−$5.12KAdded$895K
NORDEA INVESTMENT MANAGEMENT AB64.4K$4.63M−$101.1KCut−$320.5K
ALLIANCEBERNSTEIN L.P.60.8K$4.44M$0Held
Cerity Partners LLC60.8K$4.43M−$5.91KAdded$82.1K
13D Management LLC60.5K$4.41M−$6.05KCut−$3.17M
Candelo Capital Management LP60.5K$4.41M−$6.05KCut−$281K
BARCLAYS PLC57.8K$4.22M−$5.78KCut−$6.68M
DEEPWATER ASSET MANAGEMENT, LLC56.6K$4.13M−$5.66KCut−$796.9K
Calamos Advisors LLC56.5K$4.12M−$4.98KAdded$478.8K
Pier Capital, LLC56K$4.08M−$5.6KCut−$58.2K
Swedbank AB55.3K$4.03M−$3.83KAdded$1.23M
D. E. Shaw & Co., Inc.54.9K$4M−$5.49KCut−$272.1K
PRUDENTIAL FINANCIAL INC54.2K$3.95M−$5.42KCut−$8.18M
Lisanti Capital Growth, LLC53.6K$3.91M−$5.36KCut−$2.98M
Future Fund LLC48.6K$3.55M−$2.93KAdded$1.41M
SUSQUEHANNA INTERNATIONAL GROUP, LLP44.7K$3.26MNew
CITIGROUP INC43.6K$3.18M−$4.36KCut−$727.2K
VANGUARD ASSET MANAGEMENT, Ltd43.1K$3.14MHeld
RICE HALL JAMES & ASSOCIATES, LLC42.2K$3.08M−$4.22KCut−$485.5K
MOODY NATIONAL BANK TRUST DIVISION41.1K$3M−$2.98KAdded$817.4K
LPL Financial LLC40.6K$2.96M−$4.06KCut−$1.74M
One Capital Management, LLC40.5K$2.95M−$2.93KAdded$814K
INTECH INVESTMENT MANAGEMENT LLC39.9K$2.91M−$3.99KCut−$2.03M
Hennion & Walsh Asset Management, Inc.39.4K$2.88M−$3.1KAdded$611K
ExodusPoint Capital Management, LP39.2K$2.86MNew
Creative Planning38.1K$2.78M−$2.92KAdded$631.8K
IRONWOOD INVESTMENT MANAGEMENT LLC37.7K$2.75M−$3.77KCut−$129.1K
Summit Trail Advisors, LLC34.6K$2.52M−$3.46KCut−$250.6K
TD Asset Management Inc32.9K$2.4M−$3.25KAdded$21.7K
B. Metzler seel. Sohn & Co. AG32.8K$2.39M−$3.28KCut−$916.1K
Bouvel Investment Partners, LLC32.8K$2.39M−$3.13KAdded$103.9K
Freemont Management S.A.31.7K$2.31MNew
ENVESTNET ASSET MANAGEMENT INC31.2K$2.27M−$2.41KAdded$511.8K
Pathstone Holdings, LLC29.8K$2.17M−$2.99KCut−$61.9K
Cresset Asset Management, LLC29.1K$2.12M−$2.89KAdded$13.2K
GABELLI FUNDS LLC28.9K$2.11M−$843Added$1.49M
Illinois Municipal Retirement Fund28K$2.04M−$2.65KAdded$101K
MANUFACTURERS LIFE INSURANCE COMPANY, THE28K$2.04M−$2.61KAdded$131.5K
Manatuck Hill Partners, LLC26.4K$1.92M−$2.64KCut−$1.36M
CASTLEARK MANAGEMENT LLC25K$1.83M−$2.5KCut−$6.82M
State of New Jersey Common Pension Fund D25K$1.82M−$2.5KCut−$493.1K
Vestmark Advisory Solutions, Inc.24.4K$1.78M−$2.44KCut−$127.5K
JANUS HENDERSON GROUP PLC23.5K$1.71M−$2.23KCut−$2.23K
Louisiana State Employees Retirement System23.4K$1.71M−$2.34KCut−$60.7K
Zurcher Kantonalbank (Zurich Cantonalbank)23.4K$1.7M−$2.12KAdded$157.5K
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/23K$1.68M−$2.3KCut−$1.79M
Vanguard Global Advisers, LLC22.7K$1.66MHeld
CAPTRUST FINANCIAL ADVISORS22.6K$1.65M−$1.92KAdded$248.3K
GREAT LAKES ADVISORS, LLC21.6K$1.57M−$2.16KCut−$141.8K
Squarepoint Ops LLC21.6K$1.57MNew
Legato Capital Management LLC19.7K$1.44M−$1.97KCut−$1.58M
STIFEL FINANCIAL CORP17.9K$1.31M−$1.78KCut−$44K
Universal- Beteiligungs- und Servicegesellschaft mbH17.6K$1.28M−$1.63KAdded$89K
COOKSON PEIRCE & CO INC17.3K$1.26M−$1.65KAdded$54.6K
Sterling Capital Management LLC17.3K$1.26M−$1.73KCut−$724.1K
PRELUDE CAPITAL MANAGEMENT, LLC16.4K$1.19M−$728Added$661.4K
MILLENNIUM MANAGEMENT LLC16K$1.17MNew
Tidal Investments LLC15.5K$1.13M−$1.55KCut−$60.5K
Connor, Clark & Lunn Investment Management Ltd.15.4K$1.13M−$1.54KCut−$4M
ARIZONA STATE RETIREMENT SYSTEM14.8K$1.08M−$1.48KCut−$28.7K
Police & Firemen's Retirement System of New Jersey14.8K$1.08M−$1.43KAdded$33K
OPPENHEIMER & CO INC14.6K$1.06M−$1.45KCut−$530.8K
YOUSIF CAPITAL MANAGEMENT, LLC14.4K$1.05M−$346.2KCut−$343.2K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM14.3K$1.04M−$1.43KCut−$1.43K
Rafferty Asset Management, LLC13.4K$979.7K−$1.22KAdded$92K
Vanguard Investments Australia, Ltd.13.1K$958.7KHeld
Corecam Pte. Ltd.13.1K$957.3K−$412Added$636.3K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS13.1K$952.2K−$1.31KCut−$3.71K
Defiance ETFs, LLC12.1K$881.4K−$11.4KCut−$86.3K
OREGON PUBLIC EMPLOYEES RETIREMENT FUND12.1K$879.1K−$1.21KCut−$1.21K
TWO SIGMA SECURITIES, LLC11.9K$871.3K−$631Added$410.4K
State of Tennessee, Department of Treasury11.9K$871.1K−$250.5KCut−$464K
KLP KAPITALFORVALTNING AS11.9K$867.6K−$1.15KAdded$28K
Mitsubishi UFJ Asset Management Co., Ltd.11K$799.2K−$28.2KAdded$111.4K
Richard Bernstein Advisors LLC10.7K$781.2KNew
Callan Family Office, LLC10.6K$770.8K−$1.02KAdded$24.1K
FEDERATED HERMES, INC.10.3K$754K−$1.03KCut−$1.03K
NEEDHAM INVESTMENT MANAGEMENT LLC10K$729.1K−$1KCut−$1K
GLENMEDE TRUST CO NA9.45K$689.2K−$945Cut−$8.83K
US BANCORP \DE\9.09K$662.8K−$910Cut−$85.6K
FIL Ltd9.07K$661.1K−$907Cut−$404.7K
CIM INVESTMENT MANAGEMENT INC8.93K$650.9K−$761Added$94.5K
Pictet Asset Management Holding SA8.9K$648.8K−$824Added$47.2K
M&T Bank Corp8.89K$648.1K−$999Cut−$643.8K
ProShare Advisors LLC8.45K$615.9K−$846Cut−$123.9K
Perbak Capital Partners LLP8.18K$596.7KNew
BANK OF MONTREAL /CAN/8.13K$592.4K−$671Added$102.4K
CWM, LLC8.11K$591.5K$585.5KAdded$590.9K
Amundi8.03K$585.7KNew
QUADRANT CAPITAL GROUP LLC7.88K$574.3K−$770Added$12K
GUIDANCE CAPITAL, INC6.85K$568.1KNew
Maryland State Retirement & Pension System7.69K$560.4K−$769Cut−$2.81K
Vontobel Holding Ltd.7.26K$529.3K−$726Cut−$18.7K
Vanguard Personalized Indexing Management, LLC7.16K$521.9K−$584Added$95.3K
PNC Financial Services Group, Inc.7.04K$513.6K−$673Added$22.6K
Gotham Asset Management, LLC6.82K$497.4K−$682Cut−$2.29M
Cinctive Capital Management LP6.62K$482.3K−$661Cut−$10.3M
GREENWOOD CAPITAL ASSOCIATES LLC6.61K$481.8K−$661Cut−$168.2K
PICTON MAHONEY ASSET MANAGEMENT6.19K$451.3K−$474Added$105.2K
NOMURA HOLDINGS INC5.89K$429.7KNew
Corient Private Wealth LLC5.89K$429.3K−$2.72KCut−$143.4K
Tower Research Capital LLC (TRC)5.82K$424.6K−$116Added$340.5K
STRS OHIO5.5K$401K−$550Cut−$548.1K
F/m Investments LLC5.49K$400KNew
IMC-Chicago, LLC5.42K$395.3KNew
KEYBANK NATIONAL ASSOCIATION/OH5.22K$380.3K−$433Added$62.9K
Ensign Peak Advisors, Inc5.15K$375.6K−$516Cut−$516
EVERGREEN CAPITAL MANAGEMENT LLC5.09K$371.1K−$438Added$51.3K
HighTower Advisors, LLC5.06K$369.1KNew
XPONANCE LLC5.03K$367K−$409Added$68.3K
Bridgefront Capital, LLC4.91K$358.3KNew
DANSKE BANK A/S4.6K$335.6K−$294Added$120.5K
CAPSTONE INVESTMENT ADVISORS, LLC4.52K$329.3K−$451Cut−$177.4K
Ameritas Investment Partners, Inc.4.5K$327.7K−$436Added$10.1K
Alamea Verwaltungs GmbH4.35K$317.4K−$67.4KAdded$15.7K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC7.42K$311K−$254KCut−$184.6K
Steward Partners Investment Advisory, LLC4.18K$304.8K−$406Added$8.34K
Intrua Financial, LLC4.02K$292.9K−$402Cut−$402
Moors & Cabot, Inc.3.9K$284.3K−$390Cut−$36.9K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC3.86K$281.7K−$386Cut−$209.6K
Blackstone Inc.3.8K$277KNew
CIBC Bancorp USA Inc.3.47K$252.8KHeld
PANAGORA ASSET MANAGEMENT INC3.4K$247.9K−$337Added$2.43K
HIGHLAND CAPITAL MANAGEMENT, LLC3.3K$240.6KNew
NorthCrest Asset Manangement, LLC3.23K$240K−$22.9KCut−$24.9K
Y-Intercept (Hong Kong) Ltd3.21K$234.3KNew
DNB Asset Management AS3.21K$233.9KNew
Swiss Life Asset Management Ltd3.19K$232.9KNew
Blueshift Asset Management, LLC3.1K$226.3KNew
Abel Hall, LLC3.07K$223.6KNew
WINTON GROUP Ltd3.06K$222.9KNew
Crossmark Global Holdings, Inc.3.04K$221.9K−$304Cut−$48K
JOURNEY STRATEGIC WEALTH LLC3.01K$219.4K−$297Added$1.67K
Mariner, LLC2.99K$218.2KNew
Engineers Gate Manager LP2.98K$217.3KNew
Mirae Asset Global Investments Co., Ltd.2.95K$215K−$106Added$138.2K
Abacus Planning Group, Inc.2.9K$211.7K−$290Cut−$290
Hilltop National Bank2.83K$206.7K−$261Added$16.3K
NATIXIS2.81K$205.2K−$281Cut−$14.7K
SYON CAPITAL LLC2.75K$200.6KNew
Walleye Capital LLC2.24K$163.3K−$224Cut−$6.5K
Smartleaf Asset Management LLC2.25K$156.9K−$8.35KAdded$2.26K
NISA INVESTMENT ADVISORS, LLC2.15K$156.4K−$187Added$19.9K
Pinnacle Wealth Planning Services, Inc.2.04K$148.6K−$201Added$1.48K
GAMMA Investing LLC1.83K$133.4K−$179Added$3.32K
T. Rowe Price Investment Management, Inc.1.58M$115.2K−$154Added$2.54K
SIMPLEX TRADING, LLC1.29K$94.3KNew
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1.26K$92.2K$68.9KAdded$92.1K
Bayforest Capital Ltd1.04K$75.6K−$103Cut−$55.1K
PRICE T ROWE ASSOCIATES INC /MD/1.03M$75K−$86Added$11.6K
State of Wyoming1.01K$73.6K−$101Cut−$28.3K
Caitong International Asset Management Co., Ltd980$71.5KNew
OSAIC HOLDINGS, INC.965$70.3K−$98Added$2.82K
SITTNER & NELSON, LLC918$66.9KNew
VAN ECK ASSOCIATES CORP851.1K$62.1K−$73Added$9.1K
SIGNATUREFD, LLC817$59.6K−$81Added$867
Quarry LP740$54KNew
EverSource Wealth Advisors, LLC727$53K−$72Cut−$5.11K
Allworth Financial LP702$51.2K−$69Added$587
GHP Investment Advisors, Inc.700$51K−$70Cut−$70
Eurizon Capital SGR S.p.A.703$49.4K−$2.06KCut−$61.3K
Quaker Wealth Management, LLC644$47K−$64Cut−$64
LORD, ABBETT & CO. LLC642.5K$46.8K−$62Added$1.88K
Banque Transatlantique SA642$46.8KNew
JONES FINANCIAL COMPANIES LLLP653$46.6K−$1.05KCut−$3.61K
Rockefeller Capital Management L.P.636$46.4K−$64Cut−$1.3K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.