Security record
MRCY
Mercury Systems, Inc. · Industrials · Aerospace & Defense
109Tracked holders
0Δ holders
43.26MShares held
$5.28BReported value
+9New positions
−9Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +0.4% · net new positions 0.0% — 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 | 109 | 0 | 43.26M | $5.28B | +9 | −9 |
| 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 ↗ |
| 2 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 9.37M | +5.0% | $1.15B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | State Street Global Advisors ✦ (passive) | 3.42M | -11.6% | $418.05M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 19 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Invesco Ltd. | 2.67M | +9.3% | $326.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Vanguard Capital Management Llc | 2.42M | +0.8% | $296.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 1.84M | +103.8% | $225.34M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 27 | Fidelity (FMR) ✦ | 1.84M | +103.8% | $225.34M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 28 | Fidelity (FMR) ✦ | 1.84M | +103.8% | $225.34M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 30 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 31 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 32 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 33 | Goldman Sachs Group ✦ | 1.58M | +31.2% | $192.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 34 | Geode Capital Management ✦ (passive) | 1.46M | -4.3% | $178.58M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 35 | Geode Capital Management ✦ (passive) | 1.46M | -4.3% | $178.58M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 36 | First Trust Advisors Lp | 1.30M | +11.9% | $158.90M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 37 | T. Rowe Price ✦ | 1.29M | +25.0% | $157.26M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 38 | T. Rowe Price ✦ | 1.29M | +25.0% | $157.26M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 39 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 41 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | Dimensional Fund Advisors Lp | 1.16M | -5.8% | $141.44M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | Fisher Asset Management ✦ | 944.07K | -3.7% | $115.49M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 45 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Franklin Resources Inc | 846.73K | +86.7% | $103.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Neuberger Berman Group LLC | 841.56K | -7.6% | $102.07M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 52 | Neuberger Berman Group LLC | 841.56K | -7.6% | $102.07M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 811.57K | +20.9% | $99.28M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 67 | Wellington Management ✦ | 775.50K | +2.6% | $94.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | Wellington Management ✦ | 775.50K | +2.6% | $94.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Wellington Management ✦ | 775.50K | +2.6% | $94.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Raymond James Financial Inc | 748.81K | -5.7% | $91.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 715.98K | -16.7% | $87.59M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 76 | Loomis Sayles & Co L P | 681.14K | +5.5% | $83.32M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 77 | Loomis Sayles & Co L P | 681.14K | +5.5% | $83.32M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 78 | American Century Companies Inc | 664.96K | +14.1% | $81.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Charles Schwab Investment… | 627.58K | -1.3% | $76.77M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Bamco Inc /Ny/ | 606.92K | -5.9% | $74.24M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 81 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Northern Trust Corp | 597.75K | +9.1% | $73.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 88 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 89 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 90 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Ameriprise Financial Inc | 499.21K | -49.7% | $61.07M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Allspring Global Investments… | 474.87K | -17.2% | $58.43M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 93 | Allspring Global Investments… | 474.87K | -17.2% | $58.43M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 94 | Allspring Global Investments… | 474.87K | -17.2% | $58.43M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 95 | Voya Investment Management Llc | 410.08K | -32.7% | $50.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Voya Investment Management Llc | 410.08K | -32.7% | $50.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 97 | Voya Investment Management Llc | 410.08K | -32.7% | $50.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | Royal Bank Of Canada | 394.08K | -26.0% | $48.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Royal Bank Of Canada | 394.08K | -26.0% | $48.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Royal Bank Of Canada | 394.08K | -26.0% | $48.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Citadel Advisors | $21.35M | was 0.0% |
| Qube Research & Technologies… | $8.11M | was 0.0% |
| Squarepoint Ops LLC | $1.57M | was 0.0% |
| IMC-Chicago, LLC | $395,318 | 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)
Aug 20
Farnsworth David E.
Officer · 6.61K sh · $645,817
Aug 20
Ratner Steven
Officer · 1.03K sh · $100,213
Aug 20
Ballhaus William L
Officer, Director · 22.01K sh · $2.15M
Aug 20
Munro Douglas
Officer · 109 sh · $10,646
Aug 19
Munro Douglas
Officer · 548 sh · $54,968
Aug 19
KUPINSKY STUART
Officer · 1.31K sh · $131,200
Aug 19
Farnsworth David E.
Officer · 8.15K sh · $817,995
Aug 19
Ballhaus William L
Officer, Director · 26.80K sh · $2.69M
Aug 19
Ratner Steven
Officer · 2.19K sh · $219,369
Aug 18
Ballhaus William L
Officer, Director · 24.14K sh · $2.69M
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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