Comparable stake leader
Arvind Nithrakashyap
SEC ownership of Rubrik, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001943896.
Disclosed value leader
Bipul Sinha
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Symbol
- RBRK on NYSE
- Ownership evidence mix
- 13D/G, 3/4/5, and 13F
- Largest current holder
- Arvind Nithrakashyap
- Latest large-stake holder
- Arvind Nithrakashyap
- Latest evidence date
- 31 Mar 2026
- CIK
- 0001943896
- Location
- Palo Alto, CA
Ownership snapshot
2 signals
Issuer identity
2 identity fields
Ownership snapshot
Top shareholders of Rubrik, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Arvind Nithrakashyap
Disclosed value leader
Bipul Sinha
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 12%
13D/G row: Arvind Nithrakashyap
Showing 1-8 of 50 holder rows.
Quick read
Arvind Nithrakashyap leads the comparable SEC ownership view at 12%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
Arvind Nithrakashyap
12%
VANGUARD GROUP INC
9.2%
Bipul Sinha
8.9%
FMR LLC
5.3%
NORGES BANK
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Arvind Nithrakashyap |
13D/G
3/4/5
Chief Technology Officer, Director
|
12%
|
$802,422,708
11,343,267 shares
|
$0 | 31 Dec 2024 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
9.2%
|
$1,070,586,398
13,016,248 shares
|
+$20,277,175 | 30 Sep 2025 |
| Bipul Sinha |
13D/G
3/4/5
Chairman of the Board and CEO, Director, 10%+ Owner
|
8.9%
|
$1,309,499,697
13,791,466 shares
|
+$41,225,486 | 12 Sep 2025 |
| FMR LLC |
13F
13D/G
Company
|
5.3%
from 13D/G
|
$404,560,307
8,261,391 shares
|
— | 31 Mar 2026 |
| NORGES BANK |
13D/G
|
4.9%
|
$300,228,058
4,244,106 shares
|
$0 | 31 Dec 2024 |
| Greylock XIV Limited Partnership |
13D/G
Greylock XIV GP LLC
|
3.9%
|
$420,487,588
4,973,830 shares
|
-$420,487,504 | 30 Jun 2025 |
| Lightspeed Venture Partners IX, L.P. |
3/4/5
13D/G
10%+ Owner · LS SPV Management, LLC
|
2.8%
from 13D/G
|
$1,214,926,910
13,690,860 shares
mixed-class rows
|
— | 26 Jun 2025 |
| Asheem Chandna |
3/4/5
Director
|
0.97%
|
$587,343,761
1,533,956 shares
mixed-class rows
|
— | 15 Jan 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$185,959,928.
Buys
$502,220
Insiders: 1
Sells
$186,462,148
Insiders: 9
Net
-$185,959,928
Shares: -2,291,778
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 10,638
Shares: 2,302,416
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 10,638 | 201,418 | $502,220 | $9,961,497 | -$9,459,277 |
| 3-6 | 0 | 266,685 | $0 | $19,833,907 | -$19,833,907 |
| 6-9 | 0 | 735,273 | $0 | $55,660,255 | -$55,660,255 |
| 9-12 | 0 | 1,099,040 | $0 | $101,006,489 | -$101,006,489 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-18 of 18 reporting-owner rows connected to Rubrik, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest current holder
Lightspeed SPV I-B, LLC
Net 12M change
-$182,620,027
Latest report
29 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Lightspeed SPV I-B, LLC | 10%+ Owner | $2,024,120,118 | Mixed | 15 Jan 2025 | ||
| Lightspeed SPV I, LLC | 10%+ Owner | $1,607,948,803 | Mixed | 25 Mar 2025 | ||
| Lightspeed Venture Partners IX, L.P. | 10%+ Owner | $1,214,926,910 | Mixed | 26 Jun 2025 | ||
| Barry Eggers | 10%+ Owner | $1,214,926,910 | Mixed | 26 Jun 2025 | ||
| Ravi Mhatre | Director | $1,183,882,807 | -$10,289,904 | -0.86% | Mixed | 15 Jan 2026 |
| Bipul Sinha | Chairman of the Board and CEO, Director, 10%+ Owner | $841,824,133 | -$46,573,483 | -5.2% | Mixed | 12 Sep 2025 |
| Greylock XIV GP LLC | 10%+ Owner | $622,101,723 | Mixed | 28 Mar 2025 | ||
| Arvind Nithrakashyap | Chief Technology Officer, Director | $588,333,593 | -$20,642,422 | -3.4% | Mixed | 14 Apr 2026 |
| Asheem Chandna | Director | $587,343,761 | Mixed | 15 Jan 2026 | ||
| Enrique T. Salem | Director | $87,838,679 | -$65,731,288 | -43% | Mixed | 24 Jun 2025 |
| Brian K. McCarthy | Pres.,Global Sales & Field Ops | $74,853,285 | -$11,184,884 | -13% | Mixed | 31 Jan 2026 |
| Lightspeed Management Company, L.L.C. | 10%+ Owner | $72,099,739 | -$1,519,558 | -2.1% | Mixed | 30 Jun 2025 |
| Kiran Kumar Choudary | Chief Financial Officer | $67,082,909 | -$18,318,302 | -21% | Mixed | 14 Apr 2026 |
| John Wendell Thompson | Director | $41,725,608 | -$8,273,184 | -17% | Mixed | 01 May 2026 |
| Mark D. McLaughlin | Director | $6,806,482 | +$502,220 | +8% | Mixed | 30 Mar 2026 |
| Yvonne Wassenaar | Director | $3,114,450 | -$589,222 | -16% | Mixed | 29 May 2026 |
| Richard Scott Herren | Director | $286,952 | Mixed | 15 Jan 2026 | ||
| Khosla Ventures VI, L.P. | 10%+ Owner | Mixed | 24 Apr 2024 |
Recent insider transactions for Rubrik, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Yvonne Wassenaar | RBRK | Class A Common Stock | Sale | -55% | $212,850 | $75.00 | -2,838 | 2,326 | 29 May 2026 | Direct |
| Yvonne Wassenaar | RBRK | Class A Common Stock | Conversion of derivative security | 72.1% | 2,163 | 5,164 | 29 May 2026 | Direct | ||
| Yvonne Wassenaar | RBRK | Class B Common Stock | Conversion of derivative security | -6.01% | -2,163 | 33,837 | 29 May 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -70.3% | $610,298 | $55.48 | -11,000 | 4,653 | 01 May 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 236.4% | 11,000 | 15,653 | 01 May 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -12.5% | $138,780 | $55.51 | -2,500 | 17,500 | 01 May 2026 | By John and Sandra Thompson Trust |
| John Wendell Thompson | RBRK | Class B Common Stock | Conversion of derivative security | -18% | -11,000 | 50,001 | 01 May 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 01 May 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -9.02% | -11,000 | 110,946 | 01 May 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Award | 84.4% | 464,167 | 1,014,068 | 14 Apr 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Award | 26.6% | 92,834 | 441,502 | 14 Apr 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Sale | -3.51% | $1,033,733 | $51.69 | -20,000 | 549,901 | 07 Apr 2026 | Direct |
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Conversion of derivative security | 0.89% | 5,000 | 569,901 | 07 Apr 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Conversion of derivative security | -100% | -5,000 | 0 | 07 Apr 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Options Exercise | 5,000 | 5,000 | 07 Apr 2026 | Direct | |||
| Kiran Kumar Choudary | RBRK | Stock Option (Right to Buy) | Options Exercise | -13.7% | -5,000 | 31,450 | 07 Apr 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -70.3% | $537,940 | $48.90 | -11,000 | 4,653 | 01 Apr 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 236.4% | 11,000 | 15,653 | 01 Apr 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -11.1% | $122,392 | $48.96 | -2,500 | 20,000 | 01 Apr 2026 | By John and Sandra Thompson Trust |
| John Wendell Thompson | RBRK | Class B Common Stock | Conversion of derivative security | -18% | -11,000 | 50,001 | 01 Apr 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 01 Apr 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -8.27% | -11,000 | 121,946 | 01 Apr 2026 | Direct | ||
| Mark D. Mclaughlin | RBRK | Class A Common Stock | Purchase | 354.5% | $502,220 | $47.21 | 10,638 | 13,639 | 30 Mar 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -7.67% | $1,396,085 | $48.20 | -28,967 | 348,668 | 24 Mar 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 12% | 40,625 | 377,635 | 24 Mar 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.4% | -40,625 | 10,230,945 | 24 Mar 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Options Exercise | 0.4% | 40,625 | 10,271,570 | 24 Mar 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Restricted Stock Unit | Options Exercise | -100% | -40,625 | 0 | 24 Mar 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Sale | -17.8% | $5,909,419 | $48.20 | -122,613 | 564,901 | 24 Mar 2026 | Direct |
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Conversion of derivative security | 44.6% | 212,188 | 687,514 | 24 Mar 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Conversion of derivative security | -100% | -212,188 | 0 | 24 Mar 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Options Exercise | 212,188 | 212,188 | 24 Mar 2026 | Direct | |||
| Kiran Kumar Choudary | RBRK | Restricted Stock Units | Options Exercise | -100% | -212,188 | 0 | 24 Mar 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -70.3% | $589,766 | $53.62 | -11,000 | 4,653 | 02 Mar 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 236.4% | 11,000 | 15,653 | 02 Mar 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -10% | $133,878 | $53.55 | -2,500 | 22,500 | 02 Mar 2026 | By John and Sandra Thompson Trust |
| John Wendell Thompson | RBRK | Class B Common Stock | Conversion of derivative security | -18% | -11,000 | 50,001 | 02 Mar 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 02 Mar 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -7.64% | -11,000 | 132,946 | 02 Mar 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Sale | -4.04% | $1,083,445 | $54.17 | -20,000 | 474,959 | 18 Feb 2026 | Direct |
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Conversion of derivative security | 1.02% | 5,000 | 494,959 | 18 Feb 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Conversion of derivative security | -100% | -5,000 | 0 | 18 Feb 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Options Exercise | 5,000 | 5,000 | 18 Feb 2026 | Direct | |||
| Kiran Kumar Choudary | RBRK | Stock Option (Right to Buy) | Options Exercise | -12.1% | -5,000 | 36,450 | 18 Feb 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -75.1% | $608,203 | $55.29 | -11,000 | 3,655 | 02 Feb 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 301% | 11,000 | 14,655 | 02 Feb 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -8.77% | $138,258 | $55.30 | -2,500 | 25,998 | 02 Feb 2026 | By John and Sandra Thompson Trust |
| John Wendell Thompson | RBRK | Class B Common Stock | Conversion of derivative security | -18% | -11,000 | 50,001 | 02 Feb 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 02 Feb 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -7.1% | -11,000 | 143,946 | 02 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.