RBRK
Rubrik, Inc. · Technology · Software - Infrastructure
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | -1 | 205.23K | $22.72M | n/a | −1 |
| Q2 2026 | 132 | -4 | 98.66M | $7.86B | +10 | −13 |
| Q1 2026 | 138 | -3 | 83.54M | $4.10B | +8 | −12 |
| Q4 2025 | 141 | 0 | 93.71M | $7.16B | +2 | −1 |
| Q3 2025 | 21 | 0 | 43.62M | $3.59B | +3 | −4 |
| Q2 2025 | 19 | +1 | 41.01M | $3.67B | +2 | −1 |
| Q1 2025 | 15 | -1 | 14.41M | $878.86M | n/a | −1 |
| Q4 2024 | 16 | +3 | 13.52M | $883.53M | +3 | n/a |
| Q3 2024 | 12 | +1 | 9.15M | $294.28M | +3 | −2 |
| Q2 2024 | 11 | n/a | 6.38M | $195.52M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wealth Enhancement Advisory… | 128.42K | +8.9% | $13.92M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Assenagon Asset Management S.A. | 45.66K | -91.9% | $5.23M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 3 | Assetmark, Inc | 31.15K | -8.3% | $3.57M | 0.0% | ▼ Trim | 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
| TD Waterhouse Canada Inc. | $21,648 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 459 holders, 113.97M shares, $5.39B 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, Director · 3.06K sh · $381,233
Officer, Director · 13 sh · $1,632
Officer, Director · 1.48K sh · $182,267
Officer, Director · 8.27K sh · $1.03M
Officer, Director · 68 sh · $8,684
Officer, Director · 1.07K sh · $135,624
Officer, Director · 11.10K sh · $1.40M
Officer, Director · 582 sh · $72,954
Officer, Director · 2.91K sh · $360,629
Officer, Director · 5.60K sh · $688,744
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology