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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; 392 institutions reported holding it in 13F filings for Q2 2026, worth $8.01B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Mercury Systems Inc as of Dec 31, 2025. 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
347
+24 vs. Q3 2025
Shares held
64.6M
−244.2K (−0.4%) vs. Q3 2025
Total value
$4.72B
−$300.3M (−6.0%) vs. Q3 2025
New holders
55
127 more added
Sold out
31
113 more reduced

3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 347 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: 392 institutions
Value heldQ4 2025: $4.72B
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: $8.01B
Institutions holding MRCY and their total value by quarter
QuarterHoldersValue
Q2 2026392$8.01B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q3 2025.

Institutions holding MRCY in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Harbour Investments, Inc.1$730.00%00.0%Unchanged
Dunhill Financial, LLC1$850.00%+1New
True Wealth Design, LLC2$1470.00%−1−33.3%Reduced
Bear Mountain Capital, Inc.2$2060.00%00.0%Unchanged
TD Capital Management LLC4$2920.00%+4New
Rialto Wealth Management, LLC4$2930.00%−2−33.3%Reduced
Abound Wealth Management4$2930.00%00.0%Unchanged
Gilpin Wealth Management, LLC4$2930.00%+4New
Flagship Harbor Advisors, LLC5$3650.00%+5New
Elyxium Wealth, LLC5$3650.00%+5New
Signature Equity Partners, LLC6$4380.00%+6New
HFM Investment Advisors, LLC6$4390.00%00.0%Unchanged
CVA Family Office, LLC7$5110.00%+7New
SJS Investment Consulting Inc.7$5120.00%00.0%Unchanged
Central Trust Co7$5120.00%+7New
Bell Investment Advisors, Inc7$5120.00%+7New
Sunbelt Securities, Inc.8$5840.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC8$5840.00%+2+33.3%Added
Financial Consulate, Inc9$6580.00%00.0%Unchanged
Advocate Investing Services LLC10$7300.00%+10New
South State Corp.10$7310.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.11$8040.00%00.0%Unchanged
Ankerstar Wealth, LLC12$8760.00%+12New
MV Capital Management, Inc.14$1.02K0.00%00.0%Unchanged
Manchester Capital Management LLC16$1.17K0.00%+16New
Essential Partners LLC18$1.31K0.00%00.0%Unchanged
Sachetta, LLC20$1.46K0.00%00.0%Unchanged
Raffa Wealth Management, LLC26$1.90K0.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.27$1.97K0.00%+27New
Clearstead Advisors, LLC27$1.97K0.00%−20−42.6%Reduced
Golden State Wealth Management, LLC30$2.19K0.00%00.0%Unchanged
UMA Financial Services, Inc.30$2.19K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC31$2.26K0.00%+15+93.8%Added
Farmers & Merchants Investments Inc32$2.34K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC39$2.85K0.00%00.0%Unchanged
Armstrong Advisory Group, Inc39$2.85K0.00%00.0%Unchanged
SBI Securities Co., Ltd.46$3.36K0.00%−222−82.8%Reduced
Whittier Trust Co of Nevada Inc45$3.79K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC52$3.80K0.00%+13+33.3%Added
Private Wealth Management Group, LLC56$4.09K0.00%00.0%Unchanged
Colonial Trust Co75$5.54K0.00%00.0%Unchanged
Rothschild Investment LLC88$6.42K0.00%+3+3.5%Added
Hilton Head Capital Partners, LLC94$6.86K0.00%+94New
Toth Financial Advisory Corp100$7.30K0.00%00.0%Unchanged
Whittier Trust Co93$7.83K0.00%00.0%Unchanged
Covestor Ltd107$8.00K0.00%−41−27.7%Reduced
Fortitude Family Office, LLC116$8.47K0.00%+33+39.8%Added
Hillsdale Investment Management Inc.120$8.76K0.00%00.0%Unchanged
Basecamp Wealth Advisors LLC122$8.91K0.00%+122New
Bare Financial Services, Inc125$9.13K0.00%+17+15.7%Added
Farther Finance Advisors, LLC134$9.78K0.00%+66+97.1%Added
Ancora Advisors, LLC135$9.86K0.00%+135New
IFP Advisors, Inc141$10.3K0.00%+28+24.8%Added
Aster Capital Management (DIFC) Ltd141$10.3K0.00%+101+252.5%Added
Kemnay Advisory Services Inc.143$10.4K0.00%+143New
Huntington National Bank150$11.0K0.00%−12−7.4%Reduced
Matrix Trust Co157$11.0K0.00%+157New
Sound Income Strategies, LLC109$11.2K0.00%+109New
WPG Advisers, LLC157$11.5K0.01%−6−3.7%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA160$11.7K0.00%−200−55.6%Reduced
Quent Capital, LLC161$11.8K0.00%00.0%Unchanged
Parkside Financial Bank & Trust167$12.2K0.00%00.0%Unchanged
Massmutual Trust Co FSB168$12.3K0.00%+18+12.0%Added
Root Financial Partners, LLC177$12.9K0.00%−18−9.2%Reduced
Parallel Advisors, LLC181$13.2K0.00%+17+10.4%Added
Larson Financial Group LLC204$14.9K0.00%+117+134.5%Added
Hantz Financial Services, Inc.254$19.0K0.00%+188+284.8%Added
Umb Bank N A271$19.8K0.00%+3+1.1%Added
Barrow Hanley Mewhinney & Strauss LLC323$23.6K0.00%+9+2.9%Added
Coston, McIsaac & Partners396$28.0K0.01%00.0%Unchanged
Quest Partners LLC401$29.3K0.00%−168−29.5%Reduced
Salomon & Ludwin, LLC375$30.5K0.00%−8−2.1%Reduced
Versant Capital Management, Inc432$31.5K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio472$34.5K0.00%−85−15.3%Reduced
Leonteq Securities AG479$35.0K0.00%+47+10.9%Added
Hollencrest Capital Management500$36.5K0.00%+500New
SRS Capital Advisors, Inc.537$39.2K0.00%−1,148−68.1%Reduced
Quaker Wealth Management, LLC644$47.0K0.01%00.0%Unchanged
Rockefeller Capital Management L.P.653$47.7K0.00%+228+53.6%Added
Jones Financial Companies LLLP688$50.2K0.00%−20−2.8%Reduced
Allworth Financial LP693$50.6K0.00%+5+0.7%Added
GHP Investment Advisors, Inc.700$51.1K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC796$58.1K0.00%−101−11.3%Reduced
Signaturefd, LLC804$58.7K0.00%+107+15.4%Added
Advisor Group Holdings, Inc.925$67.5K0.00%−13,491−93.6%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.946$69.0K0.00%+946New
Mirae Asset Global Investments Co., Ltd.1,052$76.8K0.00%−253−19.4%Reduced
Mark Sheptoff Financial Planning, LLC1,100$80.3K0.04%00.0%Unchanged
Tower Research Capital LLC (TRC)1,152$84.1K0.00%−576−33.3%Reduced
Fifth Third Bancorp1,196$87.3K0.00%−55−4.4%Reduced
State of Wyoming1,396$101.9K0.01%+272+24.2%Added
Eurizon Capital SGR S.p.A.1,513$110.7K0.00%+1,513New
GAMMA Investing LLC1,781$130.0K0.01%+181+11.3%Added
Bayforest Capital Ltd1,790$130.7K0.10%−13,725−88.5%Reduced
Nisa Investment Advisors, LLC1,869$136.5K0.00%−72−3.7%Reduced
KBC Group NV1,886$138.0K0.00%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.2,015$147.1K0.02%+2,015New
Smartleaf Asset Management LLC2,094$154.6K0.01%+1,804+622.1%Added
Kestra Advisory Services, LLC2,250$164.3K0.00%+2,250New
Walleye Capital LLC2,326$169.8K0.00%−439−15.9%Reduced