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 | 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 · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 8.92M | +3.6% | $650.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | State Street Global Advisors ✦ (passive) | 3.87M | +12.9% | $281.85M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 19 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | Invesco Ltd. | 2.44M | +27.8% | $178.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Vanguard Capital Management Llc | 2.40M | — | $175.26M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.53M | +11.5% | $111.26M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 1.53M | +11.5% | $111.26M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 28 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 30 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Dimensional Fund Advisors Lp | 1.23M | -16.8% | $89.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Goldman Sachs Group ✦ | 1.20M | +3.9% | $87.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | First Trust Advisors Lp | 1.16M | -9.3% | $84.63M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 39 | T. Rowe Price ✦ | 1.03M | +18.6% | $75.00M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 40 | T. Rowe Price ✦ | 1.03M | +18.6% | $75.00M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 41 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Ameriprise Financial Inc | 991.81K | -23.1% | $72.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Fisher Asset Management ✦ | 980.37K | +13.9% | $71.48M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 47 | Neuberger Berman Group LLC | 910.42K | -11.6% | $66.26M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 48 | Neuberger Berman Group LLC | 910.42K | -11.6% | $66.26M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 49 | Fidelity (FMR) ✦ | 903.67K | -21.6% | $65.89M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 50 | Fidelity (FMR) ✦ | 903.67K | -21.6% | $65.89M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 51 | Fidelity (FMR) ✦ | 903.67K | -21.6% | $65.89M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 52 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 859.45K | +43.6% | $62.66M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 53 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Raymond James Financial Inc | 794.03K | +12.1% | $56.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Wellington Management ✦ | 755.52K | New | $55.09M | 0.0% | New | 1 | SEC ↗ |
| 59 | Wellington Management ✦ | 755.52K | New | $55.09M | 0.0% | New | 1 | SEC ↗ |
| 60 | Wellington Management ✦ | 755.52K | New | $55.09M | 0.0% | New | 1 | SEC ↗ |
| 61 | Jennison Associates Llc | 688.11K | +52.9% | $50.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Jennison Associates Llc | 688.11K | +52.9% | $50.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 671.33K | -8.1% | $48.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 77 | Loomis Sayles & Co L P | 645.93K | -24.2% | $47.09M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 78 | Loomis Sayles & Co L P | 645.93K | -24.2% | $47.09M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 79 | Bamco Inc /Ny/ | 645.07K | -22.8% | $47.03M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 80 | Charles Schwab Investment… | 635.97K | -0.1% | $46.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Voya Investment Management Llc | 609.26K | +19.1% | $44.42M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 82 | Voya Investment Management Llc | 609.26K | +19.1% | $44.42M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 83 | Voya Investment Management Llc | 609.26K | +19.1% | $44.42M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 84 | Allspring Global Investments… | 573.46K | -23.9% | $42.87M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 85 | Allspring Global Investments… | 573.46K | -23.9% | $42.87M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 86 | Allspring Global Investments… | 573.46K | -23.9% | $42.87M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 87 | American Century Companies Inc | 582.89K | +144.0% | $42.50M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | Northern Trust Corp | 548.06K | +5.8% | $39.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 95 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 96 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 100 | Royal Bank Of Canada | 532.69K | -17.3% | $38.84M | 0.0% | ▼ Trim | 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% |
| Wellington Management | $55.09M | 0.0% |
| Wellington Management | $55.09M | 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)
Aug 24
Ballhaus William L
Officer, Director · 2.74K sh · $248,063
Aug 24
Ballhaus William L
Officer, Director · 105.47K sh · $9.44M
Aug 21
Ratner Steven
Officer · 356 sh · $32,524
Aug 21
KUPINSKY STUART
Officer · 1.00K sh · $95,230
Aug 21
Ballhaus William L
Officer, Director · 204 sh · $19,076
Aug 21
Ballhaus William L
Officer, Director · 64.80K sh · $5.99M
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
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 ·
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