Security record · archived quarter
MRCY
Mercury Systems, Inc. · Industrials · Aerospace & Defense
105Tracked holders
+1Δ holders
43.71MShares held
$3.19BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +1.0% ·
share flow -0.6% ·
net new positions +1.0%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 10.39K | $551,779 | n/a | n/a |
| Q2 2026 | 107 | 0 | 43.25M | $5.28B | +9 | −11 |
| Q1 2026 | 112 | +6 | 43.16M | $3.14B | +15 | −9 |
| Q4 2025 | 105 | +1 | 43.71M | $3.19B | +2 | −1 |
| Q3 2025 | 16 | -1 | 24.64M | $1.91B | n/a | −1 |
| Q2 2025 | 14 | 0 | 21.38M | $1.15B | n/a | n/a |
| Q1 2025 | 11 | +1 | 6.72M | $289.56M | +1 | n/a |
| Q4 2024 | 10 | +2 | 6.46M | $271.35M | +2 | n/a |
| Q3 2024 | 7 | 0 | 2.69M | $99.43M | +2 | −2 |
| Q2 2024 | 7 | n/a | 4.36M | $117.73M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 8.61M | +1.6% | $628.74M | 0.0% | ▲ Add | 3 | SEC ↗ ×17 |
| 2 | The Vanguard Group ✦ (passive) | 5.63M | -1.7% | $411.20M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 3.42M | +12.1% | $249.96M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | Invesco Ltd. | 1.91M | n/a | $139.50M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 5 | Dimensional Fund Advisors Lp | 1.48M | n/a | $107.75M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 6 | Geode Capital Management ✦ (passive) | 1.37M | +3.6% | $99.94M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 7 | Ameriprise Financial Inc | 1.29M | n/a | $94.16M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 8 | First Trust Advisors Lp | 1.28M | n/a | $93.41M | 0.1% | n/c | 1 | SEC ↗ |
| 9 | Goldman Sachs Group ✦ | 1.16M | -6.7% | $84.43M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 10 | Fidelity (FMR) ✦ | 1.15M | -22.3% | $84.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 11 | Neuberger Berman Group LLC | 1.03M | n/a | $75.25M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 12 | T. Rowe Price ✦ | 867.67K | +0.2% | $63.35M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 13 | Fisher Asset Management ✦ | 860.38K | -1.7% | $62.82M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | Loomis Sayles & Co L P | 851.82K | n/a | $62.19M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 15 | Bamco Inc /Ny/ | 835.82K | n/a | $61.02M | 0.2% | n/c | 1 | SEC ↗ |
| 16 | Allspring Global Investments… | 753.70K | n/a | $57.30M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 17 | Morgan Stanley ✦ | 730.68K | -16.6% | $53.35M | 0.0% | ▼ Trim | 2 | SEC ↗ ×14 |
| 18 | Raymond James Financial Inc | 708.05K | n/a | $52.07M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 19 | Royal Bank Of Canada | 644.13K | n/a | $47.03M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 20 | Charles Schwab Investment… | 636.62K | n/a | $46.48M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 598.62K | n/a | $43.71M | 0.1% | n/c | 1 | SEC ↗ |
| 22 | Northern Trust Corp | 517.78K | n/a | $37.80M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 23 | Voya Investment Management Llc | 511.32K | n/a | $37.33M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 24 | Jennison Associates Llc | 449.97K | n/a | $32.85M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 25 | Sei Investments Co | 378.36K | n/a | $27.62M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 26 | Nuveen, LLC | 351.13K | n/a | $25.64M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 27 | Bank of New York Mellon Corp | 322.30K | n/a | $23.53M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 28 | Wcm Investment Management, Llc | 264.89K | n/a | $19.56M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Principal Financial Group Inc | 262.29K | n/a | $19.15M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 30 | UBS Group AG | 251.23K | n/a | $18.34M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | Bank Of America Corp /De/ | 246.74K | n/a | $18.01M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 32 | American Century Companies Inc | 238.93K | n/a | $17.44M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Victory Capital Management Inc | 227.53K | n/a | $16.61M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Franklin Resources Inc | 208.45K | n/a | $15.22M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 35 | Man Group plc | 192.03K | n/a | $14.02M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Nomura Asset Management… | 178.68K | n/a | $13.04M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Prudential Financial Inc | 166.14K | n/a | $12.13M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 38 | Bnp Paribas Financial Markets | 164.46K | n/a | $12.01M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Legal & General Group Plc | 160.87K | n/a | $11.75M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 40 | Two Sigma Investments ✦ | 150.18K | +105.6% | $10.96M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 41 | Barclays Plc | 149.17K | n/a | $10.89M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 42 | Wells Fargo & Company/Mn | 148.99K | n/a | $10.88M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 43 | Rhumbline Advisers | 142.34K | n/a | $10.39M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | New York State Common Retirement… | 139.28K | n/a | $10.17M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Deutsche Bank Ag\ | 128.71K | n/a | $9.40M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 46 | UBS AM, a distinct business unit of… | 115.64K | n/a | $8.44M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 47 | JPMorgan Chase ✦ | 109.13K | -70.0% | $7.97M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 48 | Swiss National Bank | 106.50K | n/a | $7.78M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Citadel Advisors ✦ | 104.38K | -30.7% | $7.62M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 50 | Russell Investments Group, Ltd. | 89.79K | n/a | $6.56M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 51 | Blair William & Co/Il | 83.77K | n/a | $6.12M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Connor, Clark & Lunn Investment… | 70.27K | n/a | $5.13M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Tudor Investment Corp Et Al | 69.18K | n/a | $5.05M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Nordea Investment Management Ab | 67.39K | n/a | $4.95M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 55 | Quantinno Capital Management LP | 66.61K | n/a | $4.86M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | LPL Financial LLC | 64.42K | n/a | $4.70M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Alliancebernstein L.P. | 60.82K | n/a | $4.44M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Cerity Partners LLC | 59.56K | n/a | $4.35M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 59 | D. E. Shaw & Co. ✦ | 58.55K | +8.2% | $4.28M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 60 | State Of Wisconsin Investment Board | 56.19K | n/a | $4.10M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Citigroup Inc | 53.54K | n/a | $3.91M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 62 | Qube Research & Technologies Ltd | 51.50K | n/a | $3.76M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | California State Teachers… | 51.22K | n/a | $3.74M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | AQR Capital Management ✦ | 41.78K | +21.7% | $3.05M | 0.0% | ▲ Add | 4 | SEC ↗ ×6 |
| 65 | Swedbank AB | 38.35K | n/a | $2.80M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Gotham Asset Management ✦ | 38.21K | +107.1% | $2.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 67 | Marshall Wace ✦ | 36.82K | New | $2.69M | 0.0% | New | 1 | SEC ↗ |
| 68 | Td Asset Management Inc | 32.54K | n/a | $2.38M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Creative Planning | 29.40K | n/a | $2.15M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Hrt Financial Lp | 28.05K | n/a | $2.05M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Manufacturers Life Insurance… | 26.11K | n/a | $1.91M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Envestnet Asset Management Inc | 24.15K | n/a | $1.76M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Corient Private Wealth LP | 23.43K | n/a | $1.72M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 74 | Janus Henderson Group Plc | 23.48K | n/a | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Zurcher Kantonalbank (Zurich… | 21.19K | n/a | $1.55M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Captrust Financial Advisors | 19.16K | n/a | $1.40M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Stifel Financial Corp | 18.52K | n/a | $1.35M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 78 | Universal- Beteiligungs- und… | 16.31K | n/a | $1.19M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Tidal Investments LLC | 16.29K | n/a | $1.19M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Bridgewater Associates ✦ | 15.47K | New | $1.13M | 0.0% | New | 1 | SEC ↗ |
| 81 | FIL Ltd | 14.60K | n/a | $1.07M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | State Board Of Administration Of… | 14.27K | n/a | $1.04M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Federated Hermes, Inc. | 10.34K | n/a | $754,996 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Us Bancorp \De\ | 10.25K | n/a | $748,353 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 85 | ProShare Advisors LLC | 10.13K | n/a | $739,884 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Mitsubishi UFJ Asset Management… | 9.05K | n/a | $687,767 | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Pictet Asset Management Holding SA | 8.24K | n/a | $601,675 | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Cwm, Llc | 8.04K | n/a | $587,000 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Focus Partners Wealth | 7.13K | n/a | $520,853 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Capstone Investment Advisors, Llc | 6.94K | n/a | $506,616 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Hsbc Holdings Plc | 6.77K | n/a | $496,150 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 92 | Wealth Enhancement Advisory… | 5.77K | n/a | $495,598 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Pnc Financial Services Group, Inc. | 6.73K | n/a | $491,065 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 94 | Bank Of Montreal /Can/ | 6.71K | n/a | $489,970 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 95 | Canada Pension Plan Investment Board | 6.60K | n/a | $481,866 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Ensign Peak Advisors, Inc | 5.15K | n/a | $376,148 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Pacer Advisors, Inc. | 3.81K | n/a | $278,460 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Mackenzie Financial Corp | 3.26K | n/a | $240,498 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Danske Bank A/S | 2.95K | n/a | $215,087 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Fifth Third Bancorp | 1.20K | n/a | $87,320 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $2.69M | 0.0% |
| Bridgewater Associates | $1.13M | 0.0% |
Exited
| Millennium Management | $1.73M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 353 holders, 63.99M shares, $4.30B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 21
KUPINSKY STUART
Officer · 1.00K sh · $86,520
Sep 03
Ratner Steven
Officer · 4.00K sh · $338,030
Aug 26
Ballhaus William L
Officer, Director · 38.28K sh · $3.40M
Aug 26
Ballhaus William L
Officer, Director · 10.81K sh · $970,492
Aug 25
Ballhaus William L
Officer, Director · 107.63K sh · $9.37M
Aug 25
Ballhaus William L
Officer, Director · 3.45K sh · $303,400
Aug 24
Ballhaus William L
Officer, Director · 105.47K sh · $9.44M
Aug 24
Ballhaus William L
Officer, Director · 2.74K sh · $248,063
Aug 21
Ballhaus William L
Officer, Director · 204 sh · $19,076
Aug 21
Ratner Steven
Officer · 356 sh · $32,524
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 31
SC 13G: VANGUARD PORTFOLIO MANAGEMENT LLC
Jul 29
SC 13G/A: BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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