Security record · archived quarter
MRCY
Mercury Systems, Inc. · Industrials · Aerospace & Defense
112Tracked holders
+6Δ holders
43.16MShares held
$3.14BReported value
+15New positions
−9Exits
Momentum inputs (comparable managers):
holder breadth +5.7% ·
share flow +6.6% ·
net new positions +5.4%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| 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 | — | −1 |
| Q2 2025 | 14 | 0 | 21.38M | $1.15B | — | — |
| Q1 2025 | 11 | +1 | 6.72M | $289.56M | +1 | — |
| Q4 2024 | 10 | +2 | 6.46M | $271.35M | +2 | — |
| Q3 2024 | 7 | 0 | 2.69M | $99.43M | +2 | −2 |
| Q2 2024 | 7 | — | 4.36M | $117.73M | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ ×17 |
| 2 | State Street Global Advisors ✦ (passive) | 3.87M | +12.9% | $281.85M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 3 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 4 | Vanguard Capital Management Llc | 2.40M | — | $175.26M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.53M | +11.5% | $111.26M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 6 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 7 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 8 | First Trust Advisors Lp | 1.16M | -9.3% | $84.63M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 1.03M | +18.6% | $75.00M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 10 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 11 | Fisher Asset Management ✦ | 980.37K | +13.9% | $71.48M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 12 | Neuberger Berman Group LLC | 910.42K | -11.6% | $66.26M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 13 | Fidelity (FMR) ✦ | 903.67K | -21.6% | $65.89M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 14 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 859.45K | +43.6% | $62.66M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 15 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 16 | Wellington Management ✦ | 755.52K | New | $55.09M | 0.0% | New | 1 | SEC ↗ ×3 |
| 17 | Jennison Associates Llc | 688.11K | +52.9% | $50.17M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 18 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ ×14 |
| 19 | Loomis Sayles & Co L P | 645.93K | -24.2% | $47.09M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 20 | Bamco Inc /Ny/ | 645.07K | -22.8% | $47.03M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 21 | Charles Schwab Investment… | 635.97K | -0.1% | $46.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | Voya Investment Management Llc | 609.26K | +19.1% | $44.42M | 0.1% | ▲ Add | 2 | SEC ↗ ×3 |
| 23 | Allspring Global Investments… | 573.46K | -23.9% | $42.87M | 0.1% | ▼ Trim | 2 | SEC ↗ ×3 |
| 24 | American Century Companies Inc | 582.89K | +144.0% | $42.50M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 26 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 27 | Franklin Resources Inc | 453.63K | +117.6% | $33.07M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 28 | Sei Investments Co | 370.99K | -1.9% | $27.05M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 29 | Artisan Partners Limited Partnership | 354.26K | New | $25.83M | 0.0% | New | 1 | SEC ↗ |
| 30 | Bank of New York Mellon Corp | 314.40K | -2.5% | $22.92M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 31 | Bank Of America Corp /De/ | 294.92K | +19.5% | $21.50M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 32 | Citadel Advisors ✦ | 292.87K | +180.6% | $21.35M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 33 | Nomura Asset Management… | 288.54K | +61.5% | $21.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Fifth Third Bancorp | 267.10K | +22232.9% | $19.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | Principal Financial Group Inc | 257.10K | -2.0% | $18.75M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 36 | JPMorgan Chase ✦ | 247.89K | +127.1% | $17.32M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 37 | UBS Group AG | 233.07K | -7.2% | $16.99M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 38 | Nuveen, LLC | 231.78K | -34.0% | $16.90M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 39 | Victory Capital Management Inc | 225.62K | -0.8% | $16.45M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | Wcm Investment Management, Llc | 219.32K | -17.2% | $15.32M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | New York State Common Retirement… | 193.63K | +39.0% | $14.12M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Two Sigma Investments ✦ | 162.07K | +7.9% | $11.82M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 43 | Bnp Paribas Financial Markets | 155.38K | -5.5% | $11.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Legal & General Group Plc | 151.65K | -5.7% | $11.06M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 45 | Rhumbline Advisers | 144.79K | +1.7% | $10.56M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Man Group plc | 144.72K | -24.6% | $10.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | Deutsche Bank Ag\ | 127.59K | -0.9% | $9.30M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 48 | Wells Fargo & Company/Mn | 123.72K | -17.0% | $9.02M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 49 | UBS AM, a distinct business unit of… | 116.17K | +0.5% | $8.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 50 | Qube Research & Technologies Ltd | 111.19K | +115.9% | $8.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Russell Investments Group, Ltd. | 110.37K | +22.9% | $8.05M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 52 | Swiss National Bank | 106.90K | +0.4% | $7.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 53 | Blair William & Co/Il | 78.79K | -6.0% | $5.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 54 | State Of Wisconsin Investment Board | 76.50K | +36.2% | $5.58M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Quantinno Capital Management LP | 65.98K | -0.9% | $4.81M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | AQR Capital Management ✦ | 67.28K | +61.0% | $4.77M | 0.0% | ▲ Add | 5 | SEC ↗ ×7 |
| 57 | California State Teachers… | 63.57K | +24.1% | $4.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Nordea Investment Management Ab | 64.40K | -4.4% | $4.63M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 59 | Alliancebernstein L.P. | 60.82K | 0.0% | $4.44M | 0.0% | Held | 2 | SEC ↗ |
| 60 | Cerity Partners LLC | 60.76K | +2.0% | $4.43M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 61 | Barclays Plc | 57.82K | -61.2% | $4.22M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 62 | Swedbank AB | 55.26K | +44.1% | $4.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | D. E. Shaw & Co. ✦ | 54.90K | -6.2% | $4.00M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 64 | Prudential Financial Inc | 54.22K | -67.4% | $3.95M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Susquehanna International Group, Llp | 44.71K | New | $3.26M | 0.0% | New | 1 | SEC ↗ |
| 66 | Citigroup Inc | 43.64K | -18.5% | $3.18M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 67 | LPL Financial LLC | 40.59K | -37.0% | $2.96M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Creative Planning | 38.10K | +29.6% | $2.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Td Asset Management Inc | 32.88K | +1.1% | $2.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Envestnet Asset Management Inc | 31.20K | +29.2% | $2.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Manufacturers Life Insurance… | 27.95K | +7.0% | $2.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Janus Henderson Group Plc | 23.48K | 0.0% | $1.71M | 0.0% | Held | 2 | SEC ↗ |
| 73 | Zurcher Kantonalbank (Zurich… | 23.38K | +10.3% | $1.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Captrust Financial Advisors | 22.60K | +17.9% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Squarepoint Ops LLC | 21.57K | New | $1.57M | 0.0% | New | 1 | SEC ↗ |
| 76 | Stifel Financial Corp | 17.94K | -3.1% | $1.31M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 77 | Universal- Beteiligungs- und… | 17.55K | +7.6% | $1.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 78 | Millennium Management ✦ | 16.01K | New | $1.17M | 0.0% | New | 1 | SEC ↗ |
| 79 | Tidal Investments LLC | 15.48K | -5.0% | $1.13M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Connor, Clark & Lunn Investment… | 15.45K | -78.0% | $1.13M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | State Board Of Administration Of… | 14.27K | 0.0% | $1.04M | 0.0% | Held | 2 | SEC ↗ |
| 82 | Mitsubishi UFJ Asset Management… | 10.96K | +21.2% | $799,167 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | Federated Hermes, Inc. | 10.34K | 0.0% | $753,962 | 0.0% | Held | 2 | SEC ↗ |
| 84 | Us Bancorp \De\ | 9.09K | -11.3% | $662,751 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 85 | FIL Ltd | 9.07K | -37.9% | $661,075 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Pictet Asset Management Holding SA | 8.90K | +8.0% | $648,826 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | ProShare Advisors LLC | 8.45K | -16.6% | $615,943 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | Bank Of Montreal /Can/ | 8.12K | +21.1% | $592,394 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 89 | Cwm, Llc | 8.11K | +0.9% | $591,519 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Amundi | 8.03K | New | $585,686 | 0.0% | New | 1 | SEC ↗ |
| 91 | Pnc Financial Services Group, Inc. | 7.04K | +4.7% | $513,650 | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 92 | Gotham Asset Management ✦ | 6.82K | -82.2% | $497,392 | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 93 | Nomura Holdings Inc | 5.89K | New | $429,659 | 0.0% | New | 1 | SEC ↗ |
| 94 | Corient Private Wealth LP | 5.89K | -74.9% | $429,296 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 95 | IMC-Chicago, LLC | 5.42K | New | $395,318 | 0.0% | New | 1 | SEC ↗ |
| 96 | Ensign Peak Advisors, Inc | 5.15K | 0.0% | $375,632 | 0.0% | Held | 2 | SEC ↗ |
| 97 | HighTower Advisors, LLC | 5.06K | New | $369,070 | 0.0% | New | 1 | SEC ↗ |
| 98 | Danske Bank A/S | 4.60K | +56.2% | $335,605 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Capstone Investment Advisors, Llc | 4.52K | -34.9% | $329,262 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 100 | Wealth Enhancement Advisory… | 7.42K | +28.7% | $310,982 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Wellington Management | $55.09M | 0.0% |
| Artisan Partners Limited… | $25.83M | 0.0% |
| Susquehanna International… | $3.26M | 0.0% |
| Squarepoint Ops LLC | $1.57M | 0.0% |
| Millennium Management | $1.17M | 0.0% |
| Amundi | $585,686 | 0.0% |
| Nomura Holdings Inc | $429,659 | 0.0% |
| IMC-Chicago, LLC | $395,318 | 0.0% |
| HighTower Advisors, LLC | $369,070 | 0.0% |
Exited
| Tudor Investment Corp Et Al | $5.05M | was 0.0% |
| Marshall Wace | $2.69M | was 0.0% |
| Hrt Financial Lp | $2.05M | was 0.0% |
| Bridgewater Associates | $1.13M | was 0.0% |
| Focus Partners Wealth | $520,853 | was 0.0% |
| Hsbc Holdings Plc | $496,150 | was 0.0% |
| Canada Pension Plan… | $481,866 | was 0.0% |
| Pacer Advisors, Inc. | $278,460 | was 0.0% |
| Mackenzie Financial Corp | $240,498 | 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 · 10.81K sh · $970,492
Aug 26
Ballhaus William L
Officer, Director · 38.28K sh · $3.40M
Aug 25
Ballhaus William L
Officer, Director · 3.45K sh · $303,400
Aug 25
Ballhaus William L
Officer, Director · 107.63K sh · $9.37M
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
Ratner Steven
Officer · 356 sh · $32,524
Aug 21
KUPINSKY STUART
Officer · 1.00K sh · $95,230
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: Q1 2026 ·
Methodology ·
Get this via the API