Rubrik
RBRK
123.73
-2.07
-1.65%
Rubrik
US · RBRK
#824 by market cap
Listed 2024
123.73
-2.07
-1.65%
Live - 5344 symbols - heartbeat 566s ago
· 2026-10-08 07:40
Pre-market
122.79
-0.76%
After-hours
123.73
0.00%
Overnight
122.28
-1.17%
- Market cap
- 25.65B
- P/E (TTM)i
- -97.43
- P/Bi
- -51.36
- EPSi
- -1.78
- Div yieldi
- 0.00%
- 52W posi
- 95%
Reader sentiment
Are you bullish or bearish on RBRK?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 4 in the most recent period (2026/Q3).
- Total institutional ownership fell 2.1 percentage points.
Institutional ownership
- Held by institutions
- 69.30% -2.08pp
- Institutions
- 687 -4
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund47.73%
Individual/Insider17.65%
Hedge Fund8.77%
VC/PE Fund4.90%
Public Company2.91%
Sovereign Wealth Fund2.21%
Private Company1.46%
Government Pension Fund0.87%
Family Office/Trust0.23%
Other13.26%
Top holders as of 2026-03-31
Arvind Jain
5.39% · 11.18M sh
Bipul Sinha
5.18% · 10.74M sh
Arvind Nithrakashyap
4.94% · 10.24M sh
BlackRock
4.82% · 9.99M sh
AQR Capital Management
4.75% · 9.86M sh
FMR
4.43% · 9.18M sh
Vanguard Portfolio Management, LLC
4.00% · 8.30M sh
Vanguard Capital Management, LLC
3.82% · 7.91M sh
First Trust Advisors L.P.
2.88% · 5.98M sh
Lightspeed Management Company, LLC
2.30% · 4.76M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 11 buys · 39 sells
| Name | Role | Stake |
|---|---|---|
| Bipul Sinha | Chairperson & CEO | 5.18% |
| Arvind Nithrakashyap | Co-Founder & CTO | 4.94% |
| Asheem Chandna | Independent Director | 0.55% |
| John Thompson | Lead Independent Director | 0.42% |
| Ravi Mhatre | Independent Director | 0.35% |
| Peter Nieh | -- | 0.25% |
| Barry Eggers | -- | 0.20% |
| Kiran Choudary | Chief Financial Officer | 0.18% |
| Brian McCarthy | Chief Revenue Officer | 0.08% |
| Mark McLaughlin | Independent Director | 0.04% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-30 | John Thompson | Lead Independent Director | Automatic Disposition | -2,500 | $114.68–116.47 |
| 2026-09-30 | John Thompson | Lead Independent Director | Derivative Exercise and Sale | -11,000 | -- |
| 2026-09-24 | Bipul Sinha | Chairperson & CEO | Derivative Exercise and Sale | -55,000 | -- |
| 2026-09-24 | Bipul Sinha | Chairperson & CEO | Other Derivative Acquisition | +500,000 | -- |
| 2026-09-23 | Bipul Sinha | Chairperson & CEO | Derivative Exercise and Retained | +500,000 | -- |
| 2026-09-16 | Kiran Choudary | Chief Financial Officer | Automatic Disposition | -6,000 | $102.05–108.05 |
| 2026-09-16 | Kiran Choudary | Chief Financial Officer | Derivative Exercise and Sale | -4,000 | -- |
| 2026-09-14 | Arvind Nithrakashyap | Co-Founder & CTO | Sale to Issuer | -10,436 | $100.20 |
| 2026-09-14 | Kiran Choudary | Chief Financial Officer | Sale to Issuer | -13,995 | $100.20 |
| 2026-09-14 | Kiran Choudary | Chief Financial Officer | Derivative Exercise and Sale | -4,000 | $99.08–103.48 |
| 2026-09-09 | Arvind Nithrakashyap | Co-Founder & CTO | Derivative Exercise and Sale | -38,460 | $87.55–92.87 |
| 2026-09-07 | Arvind Nithrakashyap | Co-Founder & CTO | Intent to Sell (Form 144) | -128,200 | $91.63 |
| 2026-09-02 | Yvonne Wassenaar | Independent Director | Automatic Disposition | -208 | $89.52 |
| 2026-09-02 | Yvonne Wassenaar | Independent Director | Derivative Exercise and Sale | -513 | $89.52 |
| 2026-08-31 | John Thompson | Lead Independent Director | Automatic Disposition | -2,500 | $88.58–91.66 |
| 2026-08-31 | John Thompson | Lead Independent Director | Derivative Exercise and Sale | -11,000 | $88.34–92.37 |
| 2026-08-31 | John Thompson | Lead Independent Director | Other Derivative Acquisition | +11,000 | -- |
| 2026-08-31 | John Thompson | Lead Independent Director | Other Derivative Disposition | -11,000 | -- |
| 2026-08-25 | Rakefet Russak-Aminoach | Director | Other Acquisition | +10,304 | -- |
| 2026-08-23 | Kiran Choudary | Chief Financial Officer | Automatic Disposition | -6,000 | $97.81–99.93 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 07:40:00 · For reference only, not investment advice and not tailored to your situation.