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Disclosery

MRCY MERCURY SYS INC

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Stock (common), issuer CIK 1049521

345 managers (357 13F filers) reported a position in MRCY shares at 2026-03-31, 65,178,313 shares in all. 51 filers opened a position and 42 filers sold out during the quarter.

Managers
345
13F filers
357
New
51
Added
134
Reduced
120
Sold out
42
Shares held by filers
65,178,313

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
IMC-Chicago, LLC5,422$395K0.01%new13F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…5,216$380K<0.01%+86913F-HRTimelineGroup
Ensign Peak Advisors, Inc5,152$376K<0.01%013F-HR/ATimeline
EVERGREEN CAPITAL MANAGEMENT LLC5,090$371K0.01%+70913F-HRTimeline
HighTower Advisors, LLC5,062$369K<0.01%new13F-HRTimeline
XPONANCE LLC5,033$367K<0.01%+94213F-HRTimeline
Bridgefront Capital, LLC4,914$358K0.09%new13F-HRTimeline
DANSKE BANK A/S4,603$336K<0.01%+1,65713F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…4,516$329K<0.01%-2,42313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,495$328K0.01%+14413F-HRTimelineGroup
Alamea Verwaltungs GmbH4,354$317K0.24%+1,14013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…7,423$311K<0.01%+1,65513F-HRTimeline
CENTAURUS FINANCIAL, INC.4,196$306K0.01%+2913F-HRTimeline
Steward Partners Investment Advisory, L…4,181$305K<0.01%+12013F-HRTimeline
Intrua Financial, LLC4,017$293K0.03%013F-HRTimeline
Moors & Cabot, Inc.3,900$284K0.01%-50013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC3,864$282K<0.01%-2,86613F-HRTimeline
Blackstone Inc.in group Blackstone Inc.3,799$277K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.3,467$253K<0.01%13F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC3,400$248K<0.01%+3813F-HRTimeline
HIGHLAND CAPITAL MANAGEMENT, LLC3,300$241K0.01%new13F-HRTimeline
NorthCrest Asset Manangement, LLC3,233$240K0.01%-2513F-HRTimeline
Y-Intercept (Hong Kong) Ltd3,213$234K<0.01%new13F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS3,208$234K<0.01%new13F-HRTimelineGroup
Hunter Perkins Capital Management, LLC3,190$233K0.05%-2,81513F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…3,194$233K<0.01%new13F-HRTimelineGroup
Blueshift Asset Management, LLC3,104$226K0.07%new13F-HRTimeline
Abel Hall, LLC3,067$224K0.05%new13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd3,057$223K0.01%new13F-HRTimelineGroup
Crossmark Global Holdings, Inc.3,043$222K<0.01%-65313F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC3,009$219K0.01%+2713F-HRTimeline
Mariner, LLCin group Mariner, LLC2,993$218K<0.01%new13F-HRTimelineGroup
Engineers Gate Manager LP2,980$217K<0.01%new13F-HRTimeline
Abacus Planning Group, Inc.2,904$212K0.03%013F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding2,875$210K+549Timeline
Hilltop National Bank2,835$207K0.05%+22713F-HRTimeline
SYON CAPITAL LLC2,752$201K0.01%new13F-HRTimeline
Smartleaf Asset Management LLC2,246$157K0.01%+15213F-HRTimeline
NISA INVESTMENT ADVISORS, LLC2,145$156K<0.01%+27613F-HRTimeline
Pinnacle Wealth Planning Services, Inc.2,038$149K0.02%+2313F-HRTimeline
KBC Group NVin group KBC Group NV1,886$138K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC1,829$133K0.01%+4813F-HRTimeline
SIMPLEX TRADING, LLC1,294$94.3K<0.01%new13F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,264$92.2K<0.01%+31813F-HRTimelineGroup
Bayforest Capital Ltd1,037$75.6K0.08%-75313F-HRTimeline
State of Wyoming1,010$73.6K0.01%-38613F-HRTimeline
Caitong International Asset Management …980$71.5K0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.965$70.3K<0.01%+4013F-HRTimelineGroup
SITTNER & NELSON, LLC918$66.9K0.02%new13F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.879$64K<0.01%+62513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
SIGNATUREFD, LLC817$59.6K<0.01%+1313F-HRTimeline
Quarry LP740$54K0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…727$53K<0.01%-6913F-HR/ATimelineGroup
Allworth Financial LP702$51.2K<0.01%+913F-HRTimeline
GHP Investment Advisors, Inc.700$51K<0.01%013F-HRTimeline
Eurizon Capital SGR S.p.A.703$49.4K<0.01%-81013F-HRTimeline
Quaker Wealth Management, LLC644$47K0.01%013F-HRTimeline
Banque Transatlantique SAin group Banque Transatlantique SA642$46.8K<0.01%new13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP653$46.6K<0.01%-3513F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…636$46.4K<0.01%-1713F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC460$33.5K<0.01%+13713F-HRTimeline
Versant Capital Management, Inc432$31.5K<0.01%013F-HRTimeline
Arax Advisory Partners420$30.6K<0.01%-11713F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…406$29.6K<0.01%-6613F-HRTimeline
Coston, McIsaac & Partners396$28K0.01%013F-HRTimeline
Salomon & Ludwin, LLC375$27.8K<0.01%013F-HRTimeline
Leonteq Securities AG349$25.4K<0.01%-13013F-HRTimeline
Kemnay Advisory Services Inc.346$25.2K<0.01%+20313F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.331$24.1K<0.01%new13F-HR/ATimelineGroup
GROUP ONE TRADING LLC303$22.1K<0.01%new13F-HRTimeline
UMB Bank, n.a.273$19.9K<0.01%+213F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
WHITTIER TRUST CO262$19.8K<0.01%+16913F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC258$18.8K<0.01%-10,69913F-HRTimeline
Farther Finance Advisors, LLC243$18.2K<0.01%+10913F-HRTimeline
MARK SHEPTOFF FINANCIAL PLANNING, LLC200$16.6K0.01%-90013F-HRTimeline
MassMutual Private Wealth & Trust, FSB212$15.5K<0.01%+4413F-HRTimeline
HM PAYSON & CO200$14.6K<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK193$14.1K<0.01%+4313F-HRTimelineGroup
Root Financial Partners, LLC192$14K<0.01%+1513F-HRTimeline
Parallel Advisors, LLC181$13.2K<0.01%013F-HR/ATimeline
Parkside Financial Bank & Trust168$12.2K<0.01%+113F-HRTimeline
Quent Capital, LLC161$11.7K<0.01%013F-HRTimeline
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…160$11.7K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Bare Financial Services, Inc158$11.5K<0.01%+3313F-HRTimeline
WPG Advisers, LLC155$11.3K0.01%-213F-HRTimeline
Cedar Mountain Advisors, LLC152$11.1K<0.01%new13F-HRTimeline
Matrix Trust Co135$10K<0.01%-2213F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC135$9.84K<0.01%013F-HRTimelineGroup
IFP Advisors, Inc132$9.62K<0.01%-913F-HRTimeline
Fortitude Family Office, LLC129$9.4K<0.01%+1313F-HRTimeline
Basecamp Wealth Advisors LLC122$8.89K<0.01%013F-HRTimeline
Millstone Evans Group, LLC119$8.68K0.01%new13F-HRTimeline
Sound Income Strategies, LLC110$8.22K<0.01%+113F-HRTimeline
Covestor Ltd106$8K0.01%-113F-HRTimeline
ROTHSCHILD INVESTMENT LLC108$7.87K<0.01%+2013F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC108$7.87K<0.01%new13F-HRTimeline
Hilton Head Capital Partners, LLC94$6.85K<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…88$6.42K<0.01%+6113F-HRTimeline
TOTH FINANCIAL ADVISORY CORP80$5.83K<0.01%-2013F-HRTimeline
Larson Financial Group LLC58$4.23K<0.01%-14613F-HRTimeline
JFS WEALTH ADVISORS, LLC56$4.08K<0.01%+413F-HRTimeline
SBI Securities Co., Ltd.56$4.08K<0.01%+1013F-HRTimeline
Private Wealth Management Group, LLC56$4.08K<0.01%013F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors55$3.84K<0.01%-2013F-HRTimelineGroup
MAI Capital Management49$3.57K<0.01%new13F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC45$3.41K<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC42$3.06K<0.01%+313F-HRTimeline
CVA Family Office, LLC40$2.92K<0.01%+3313F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC39$2.84K<0.01%013F-HRTimeline
Annis Gardner Whiting Capital Advisors,…31$2.26K<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.30$2.19K<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…30$2.19K<0.01%-213F-HRTimelineGroup
Golden State Wealth Management, LLC30$2.19K<0.01%013F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC26$1.9K<0.01%013F-HRTimeline
NBT BANK, N.A.in group NBT BANK, N.A.24$1.75K<0.01%new13F-HRTimelineGroup
Sachetta, LLC20$1.46K<0.01%013F-HRTimeline
Essential Partners LLC18$1.31K<0.01%013F-HRTimeline
Manchester Capital Management LLC16$1.17K<0.01%013F-HRTimeline
MV CAPITAL MANAGEMENT, INC.14$1.02K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.12$875<0.01%+513F-HRTimeline
DiNuzzo Private Wealth, Inc.12$875<0.01%+113F-HRTimeline
Ankerstar Wealth, LLC12$875<0.01%013F-HRTimeline
Wall Street Financial Group, Inc.11$802<0.01%new13F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…10$748<0.01%new13F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp10$730<0.01%013F-HRTimelineGroup
FINANCIAL CONSULATE, INC9$657<0.01%013F-HRTimeline
Rakuten Securities, Inc.in group Rakuten Group, Inc.9$656<0.01%new13F-HRTimelineGroup
GILPIN WEALTH MANAGEMENT, LLC8$584<0.01%+413F-HRTimeline
Sunbelt Securities, Inc.8$583<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC8$583<0.01%013F-HRTimeline
Rossby Financial, LCC7$523<0.01%new13F-HRTimeline
CENTRAL TRUST Co7$511<0.01%013F-HRTimeline
Bell Investment Advisors, Inc7$511<0.01%013F-HRTimeline
Rialto Wealth Management, LLC7$511<0.01%+313F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC6$437<0.01%new13F-HRTimelineGroup
Bogart Wealth, LLC6$437<0.01%new13F-HRTimeline
Signature Equity Partners, LLC6$437<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.5$365<0.01%+413F-HRTimeline
HFM Investment Advisors, LLC4$292<0.01%-213F-HRTimeline
Vermillion Wealth Management, Inc.3$219<0.01%new13F-HRTimeline
Bear Mountain Capital, Inc.2$168<0.01%013F-HRTimeline
Abound Wealth Management2$146<0.01%-213F-HRTimeline
True Wealth Design, LLC2$146<0.01%013F-HRTimeline
Dunhill Financial, LLC1$85<0.01%013F-HRTimeline
Advisory Services Network, LLC1$73<0.01%new13F-HRTimeline