Security record
MRCY
Mercury Systems, Inc. · Industrials · Aerospace & Defense
107Tracked holders
0Δ holders
43.25MShares held
$5.28BReported value
+9New positions
−11Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +0.5% · net new positions -1.9% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 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 · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ ×17 |
| 2 | State Street Global Advisors ✦ (passive) | 3.42M | -11.6% | $418.05M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 3 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 4 | Vanguard Capital Management Llc | 2.42M | +0.8% | $296.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 1.84M | +103.8% | $225.34M | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 6 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 7 | Geode Capital Management ✦ (passive) | 1.46M | -4.3% | $178.58M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 8 | First Trust Advisors Lp | 1.30M | +11.9% | $158.90M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 1.29M | +25.0% | $157.26M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 10 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 11 | Fisher Asset Management ✦ | 944.07K | -3.7% | $115.49M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 12 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 13 | Neuberger Berman Group LLC | 841.56K | -7.6% | $102.07M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 14 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ ×14 |
| 15 | Wellington Management ✦ | 775.50K | +2.6% | $94.87M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 16 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 17 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 715.98K | -16.7% | $87.59M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 18 | Loomis Sayles & Co L P | 681.14K | +5.5% | $83.32M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 19 | American Century Companies Inc | 664.96K | +14.1% | $81.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | Charles Schwab Investment… | 627.58K | -1.3% | $76.77M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Bamco Inc /Ny/ | 606.92K | -5.9% | $74.24M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 22 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 23 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 24 | Allspring Global Investments… | 474.87K | -17.2% | $58.43M | 0.1% | ▼ Trim | 3 | SEC ↗ ×3 |
| 25 | Voya Investment Management Llc | 410.08K | -32.7% | $50.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 26 | Royal Bank Of Canada | 394.08K | -26.0% | $48.21M | 0.0% | ▼ Trim | 3 | SEC ↗ ×9 |
| 27 | Artisan Partners Limited Partnership | 372.82K | +5.2% | $45.61M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 28 | Jennison Associates Llc | 354.89K | -48.4% | $43.41M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 29 | Bank of New York Mellon Corp | 314.22K | -0.1% | $38.44M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 30 | UBS Group AG | 274.80K | +17.9% | $33.62M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 31 | Sei Investments Co | 261.71K | -29.5% | $32.02M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 32 | Principal Financial Group Inc | 258.56K | +0.6% | $31.63M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 33 | Swedbank AB | 244.30K | +342.1% | $29.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Bank Of America Corp /De/ | 223.53K | -24.2% | $27.34M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 35 | Fifth Third Bancorp | 222.39K | -16.7% | $27.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Wcm Investment Management, Llc | 219.32K | 0.0% | $24.17M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Victory Capital Management Inc | 193.07K | -14.4% | $23.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Nuveen, LLC | 186.62K | -19.5% | $22.83M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 39 | JPMorgan Chase ✦ | 193.47K | -21.9% | $21.60M | 0.0% | ▼ Trim | 4 | SEC ↗ ×6 |
| 40 | Bnp Paribas Financial Markets | 158.22K | +1.8% | $19.36M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | Deutsche Bank Ag\ | 142.68K | +11.8% | $17.45M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 42 | Nomura Asset Management… | 142.03K | -50.8% | $17.37M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | Wells Fargo & Company/Mn | 136.98K | +10.7% | $16.76M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 44 | New York State Common Retirement… | 133.23K | -31.2% | $16.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Rhumbline Advisers | 127.93K | -11.7% | $15.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | Legal & General Group Plc | 126.26K | -16.7% | $15.45M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 47 | UBS AM, a distinct business unit of… | 122.58K | +5.5% | $15.00M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 48 | Jane Street Group, Llc | 115.34K | New | $14.11M | 0.0% | New | 1 | SEC ↗ ×2 |
| 49 | Man Group plc | 110.60K | -23.6% | $13.53M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Swiss National Bank | 108.40K | +1.4% | $13.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Russell Investments Group, Ltd. | 93.88K | -14.9% | $11.48M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 52 | Blair William & Co/Il | 77.71K | -1.4% | $9.51M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Quantinno Capital Management LP | 76.11K | +15.4% | $9.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Two Sigma Investments ✦ | 71.86K | -55.7% | $8.79M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 55 | State Of Wisconsin Investment Board | 67.35K | -12.0% | $8.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Nordea Investment Management Ab | 65.67K | +2.0% | $7.58M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 57 | D. E. Shaw & Co. ✦ | 61.83K | +12.6% | $7.56M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 58 | Cerity Partners LLC | 60.45K | -0.5% | $7.39M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 59 | Prudential Financial Inc | 55.17K | +1.8% | $6.75M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Barclays Plc | 54.49K | -5.8% | $6.67M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 61 | AQR Capital Management ✦ | 55.16K | -18.0% | $6.34M | 0.0% | ▼ Trim | 6 | SEC ↗ ×7 |
| 62 | Creative Planning | 51.77K | +35.9% | $6.33M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 63 | Citigroup Inc | 48.15K | +10.3% | $5.89M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 64 | Alliancebernstein L.P. | 71.64K | +17.8% | $5.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Universal- Beteiligungs- und… | 35.96K | +104.9% | $4.40M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Susquehanna International Group, Llp | 35.03K | -21.7% | $4.28M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Td Asset Management Inc | 33.15K | +0.8% | $4.06M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Envestnet Asset Management Inc | 32.15K | +3.0% | $3.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Manufacturers Life Insurance… | 31.82K | +13.8% | $3.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Peak6 Llc | 29.87K | New | $3.65M | 0.1% | New | 1 | SEC ↗ |
| 71 | Zurcher Kantonalbank (Zurich… | 26.69K | +14.2% | $3.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Stifel Financial Corp | 21.89K | +22.0% | $2.68M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 73 | LPL Financial LLC | 18.14K | -55.3% | $2.22M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Captrust Financial Advisors | 17.78K | -21.3% | $2.17M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | State Board Of Administration Of… | 17.34K | +21.5% | $2.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Bank Of Montreal /Can/ | 16.03K | +97.3% | $1.96M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 77 | Federated Hermes, Inc. | 12.85K | +24.2% | $1.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Corient Private Wealth LP | 10.74K | +82.4% | $1.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Mitsubishi UFJ Asset Management… | 9.41K | -14.2% | $1.15M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Pictet Asset Management Holding SA | 8.87K | -0.3% | $1.09M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | ProShare Advisors LLC | 8.00K | -5.3% | $978,640 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Pnc Financial Services Group, Inc. | 7.80K | +10.7% | $953,806 | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 83 | Tidal Investments LLC | 7.33K | -52.7% | $896,190 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | Gotham Asset Management ✦ | 6.83K | +0.2% | $836,126 | 0.0% | ▲ Add | 7 | SEC ↗ |
| 85 | Danske Bank A/S | 5.94K | +29.1% | $726,640 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Nomura Holdings Inc | 5.46K | -7.3% | $668,044 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Connor, Clark & Lunn Investment… | 4.97K | -67.8% | $607,735 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 88 | Focus Partners Wealth | 4.97K | New | $607,613 | 0.0% | New | 1 | SEC ↗ |
| 89 | Wealth Enhancement Advisory… | 8.51K | +14.7% | $548,161 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Commonwealth Equity Services, Llc | 4.30K | New | $526,630 | 0.0% | New | 1 | SEC ↗ |
| 91 | CIBC Bancorp USA Inc. | 3.73K | +7.5% | $462,774 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 92 | Ensign Peak Advisors, Inc | 3.65K | -29.1% | $446,749 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Us Bancorp \De\ | 3.15K | -65.4% | $385,217 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 94 | Mercer Global Advisors Inc /Adv | 3.11K | New | $380,569 | 0.0% | New | 1 | SEC ↗ |
| 95 | Millennium Management ✦ | 2.90K | -81.9% | $354,879 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 96 | Cetera Investment Advisers | 2.77K | New | $339,343 | 0.0% | New | 1 | SEC ↗ |
| 97 | Lazard Asset Management Llc | 2.46K | New | $301,543 | 0.0% | New | 1 | SEC ↗ |
| 98 | CIBC Asset Management Inc | 1.86K | New | $227,044 | 0.0% | New | 1 | SEC ↗ |
| 99 | Simplex Trading, Llc | 1.66K | +28.1% | $202,700 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 100 | Mitsubishi UFJ Trust & Banking Corp | 1.59K | New | $194,138 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Jane Street Group, Llc | $14.11M | 0.0% |
| Peak6 Llc | $3.65M | 0.1% |
| Focus Partners Wealth | $607,613 | 0.0% |
| Commonwealth Equity Services… | $526,630 | 0.0% |
| Mercer Global Advisors Inc… | $380,569 | 0.0% |
| Cetera Investment Advisers | $339,343 | 0.0% |
| Lazard Asset Management Llc | $301,543 | 0.0% |
| CIBC Asset Management Inc | $227,044 | 0.0% |
| Mitsubishi UFJ Trust &… | $194,138 | 0.0% |
Exited
| Citadel Advisors | $21.35M | was 0.0% |
| Qube Research & Technologies… | $8.11M | was 0.0% |
| Squarepoint Ops LLC | $1.57M | was 0.0% |
| Amundi | $585,686 | was 0.0% |
| IMC-Chicago, LLC | $395,318 | was 0.0% |
| HighTower Advisors, LLC | $369,070 | was 0.0% |
| Capstone Investment Advisors… | $329,262 | was 0.0% |
| Mariner, LLC | $218,152 | was 0.0% |
| Walleye Trading LLC | $46,298 | was 0.0% |
| Optiver Holding B.V. | $24,133 | was 0.0% |
| Group One Trading Llc | $22,092 | 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: Q2 2026 ·
Methodology ·
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