MRCY
Mercury Systems, Inc. · Industrials · Aerospace & Defense
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 10.39K | $551,779 | n/a | n/a |
| 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 | 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 |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wealth Enhancement Advisory… | 10.39K | +22.0% | $551,779 | 0.0% | ▲ Add | 4 | 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
| No tracked exits this quarter. |
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.
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)
Officer · 1.00K sh · $86,520
Officer · 4.00K sh · $338,030
Officer, Director · 38.28K sh · $3.40M
Officer, Director · 10.81K sh · $970,492
Officer, Director · 107.63K sh · $9.37M
Officer, Director · 3.45K sh · $303,400
Officer, Director · 105.47K sh · $9.44M
Officer, Director · 2.74K sh · $248,063
Officer, Director · 204 sh · $19,076
Officer · 356 sh · $32,524
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology