Brian K. McCarthy is CRO at Rubrik, Inc. (RBRK). They have made 7 open-market trades across 1 company since 2024, most recently 2026-01-31.
CIK 0002020217
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| RBRK | 772,794 | $86.8M |
Shares reported on the most recent Form 4, priced at the 2026-02-03 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RBRK | SELL | 2026-01-12 | 2026-01-13 | $70.88 | $709K | -3.1% | -24.6% | -31.0% |
| RBRK | SELL | 2025-12-17 | 2025-12-18 | $76.18 | $731K | -0.4% | -15.5% | -32.2% |
| RBRK | SELL · 10b5-1 | 2025-12-10 | 2025-12-10 | $90.83 | $908K | -10.2% | -20.5% | -37.0% |
| RBRK | SELL · 10b5-1 | 2025-11-10 | 2025-11-12 | $75.90 | $1.5M | -8.2% | +11.1% | -23.9% |
| RBRK | SELL · 10b5-1 | 2025-10-13 | 2025-10-14 | $83.14 | $1.5M | -4.1% | -12.1% | -11.1% |
| RBRK | SELL | 2025-09-16 | 2025-09-18 | $74.21 | $693K | +4.8% | +0.4% | -6.8% |
| RBRK | SELL · 10b5-1 | 2025-09-02 | 2025-09-04 | $87.90 | $2.1M | -15.4% | -7.3% | -19.5% |
| RBRK | SELL · 10b5-1 | 2025-08-01 | 2025-08-04 | $87.54 | $1.7M | -9.4% | -5.9% | -18.7% |
| RBRK | SELL · 10b5-1 | 2025-07-01 | 2025-07-07 | $86.08 | $4.1M | -2.9% | +2.5% | -8.1% |
| RBRK | SELL | 2025-06-17 | 2025-06-20 | $88.56 | $847K | -0.5% | +0.6% | -9.3% |
| RBRK | SELL · 10b5-1 | 2025-06-05 | 2025-06-09 | $100.18 | $2.5M | -5.2% | +1.6% | +6.0% |
| RBRK | SELL · 10b5-1 | 2025-06-02 | 2025-06-04 | $98.31 | $4.7M | -6.7% | -8.9% | -10.8% |
| RBRK | SELL · 10b5-1 | 2025-05-22 | 2025-05-27 | $90.10 | $2.3M | +3.2% | -2.9% | -7.4% |
| RBRK | SELL · 10b5-1 | 2025-05-13 | 2025-05-15 | $80.01 | $4.0M | +7.5% | +5.1% | +0.7% |
| RBRK | SELL · 10b5-1 | 2025-05-01 | 2025-05-02 | $71.44 | $3.6M | +17.1% | +38.1% | +31.4% |
| RBRK | SELL · 10b5-1 | 2025-04-01 | 2025-04-01 | $60.19 | $2.9M | -1.3% | +19.0% | +49.9% |
| RBRK | SELL | 2025-03-21 | 2025-03-25 | $70.04 | $11.9M | -26.1% | -2.6% | +28.0% |
| RBRK | SELL · 10b5-1 | 2025-03-14 | 2025-03-18 | $70.00 | $1.8M | -9.2% | -12.1% | +31.2% |
| RBRK | SELL · 10b5-1 | 2025-03-03 | 2025-03-04 | $63.13 | $3.1M | +15.5% | -6.1% | +63.1% |
| RBRK | SELL · 10b5-1 | 2025-02-03 | 2025-02-05 | $70.94 | $3.5M | +2.7% | -24.6% | -2.4% |
| RBRK | SELL | 2025-01-07 | 2025-01-08 | $66.06 | $8.7M | +14.6% | +19.7% | -15.2% |
| RBRK | SELL · 10b5-1 | 2025-01-03 | 2025-01-03 | $66.99 | $3.1M | -1.1% | +2.7% | -16.7% |
| RBRK | SELL | 2024-12-17 | 2024-12-19 | $72.34 | $4.1M | +2.3% | +10.0% | +9.4% |
| RBRK | SELL · 10b5-1 | 2024-12-06 | 2024-12-06 | $64.37 | $3.2M | +6.4% | +7.1% | -8.4% |
| RBRK | SELL · 10b5-1 | 2024-12-02 | 2024-12-04 | $49.99 | $2.5M | +44.4% | +27.9% | +17.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.