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
Lightspeed SPV I-B, LLC
Comparable rows
10/50
Latest evidence
02 Nov 2026
- Public ticker
- RBRK on NYSE
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Arvind Nithrakashyap
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
10 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Arvind Nithrakashyap
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
02 Nov 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001943896
- Issuer location
- Palo Alto, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
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
Lightspeed SPV I-B, LLC
Comparable rows
10/50
Latest evidence
02 Nov 2026
3/4/5
13D/G
13F
Lead comparable stake: 12%
40 rows are not safely comparable across share classes.
13D/G row: Arvind Nithrakashyap
Showing 1-8 of 50 holder rows.
Quick read
Arvind Nithrakashyap leads the comparable SEC ownership view at 12%.
10 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.
Open SEC evidence
Opens Arvind Nithrakashyap's linked filing trail.
Comparable ownership
Top 5
Arvind Nithrakashyap
12%
VANGUARD GROUP INC
9.2%
FMR LLC
9.1%
Bipul Sinha
8.9%
AQR CAPITAL MANAGEMENT LLC
6.2%
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 |
3/4/5
13D/G
Chief Technology Officer, Director
|
12%
Reported 13D/G
· 31 Dec 2024
|
$1,261,481,528
10,434,187 shares
mixed-class rows
|
-$42,230,095 | 02 Nov 2026 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
9.2%
Reported 13D/G
· 30 Sep 2025
|
$1,070,586,398
13,016,248 shares
|
+$20,277,175 | 30 Sep 2025 |
| FMR LLC |
13D/G
13F
Company
|
9.1%
Reported 13D/G
· 30 Sep 2026
|
$1,846,506,827
15,274,273 shares
|
+$831,421,942 | 30 Sep 2026 |
| Bipul Sinha |
13D/G
3/4/5
Chairman of the Board and CEO, Director, 10%+ Owner
|
8.9%
Reported 13D/G
· 12 Sep 2025
|
$1,309,499,697
13,791,466 shares
|
+$41,225,486 | 12 Sep 2025 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
13F
Company
|
6.2%
Reported 13D/G
· 30 Jun 2026
|
$839,650,699
9,948,468 shares
|
$0 | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
4.9%
Reported 13D/G
· 30 Sep 2026
|
$941,700,734
8,226,616 shares
|
+$11,402,586 | 30 Sep 2026 |
| NORGES BANK |
13F
13D/G
Company
|
4.9%
Reported 13D/G
· 31 Dec 2024
|
$326,693,359
4,069,424 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
4.8%
Reported 13D/G
· 30 Sep 2026
|
$918,041,044
8,019,927 shares
|
$0 | 30 Sep 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: -$81,947,710.
Buys
$502,220
Insiders: 1
Sells
$82,449,930
Insiders: 6
Net
-$81,947,710
Shares: -1,039,321
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 10,638
Shares: 1,049,959
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 178,043 | $0 | $19,398,417 | -$19,398,417 |
| 3-6 | 0 | 384,142 | $0 | $31,847,539 | -$31,847,539 |
| 6-9 | 10,638 | 232,080 | $502,220 | $11,555,737 | -$11,053,517 |
| 9-12 | 0 | 255,694 | $0 | $19,648,238 | -$19,648,238 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-19 of 19 reporting-owner rows connected to Rubrik, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
19
Largest Forms 3/4/5 holder
Lightspeed SPV I-B, LLC
Net 12M change
-$81.95M
Full value: -$81,947,710 · USD · 12-month changeLatest report
04 Nov 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 | ||
| Arvind Nithrakashyap | Chief Technology Officer, Director | $1,261,481,528 | -$42,230,095 | -3.2% | Mixed | 02 Nov 2026 |
| Barry Eggers | 10%+ Owner | $1,214,926,910 | Mixed | 26 Jun 2025 | ||
| Lightspeed Venture Partners IX, L.P. | 10%+ Owner | $1,214,926,910 | Mixed | 26 Jun 2025 | ||
| Ravi Mhatre | Director | $1,194,998,697 | -$9,385,459 | -0.78% | Mixed | 10 Jul 2026 |
| Bipul Sinha | Chairman of the Board and CEO, Director, 10%+ Owner | $881,133,048 | Mixed | 24 Sep 2026 | ||
| Greylock XIV GP LLC | 10%+ Owner | $622,101,723 | Mixed | 28 Mar 2025 | ||
| Asheem Chandna | Director | $545,300,209 | Mixed | 03 Jun 2026 | ||
| Kiran Kumar Choudary | Chief Financial Officer | $120,944,327 | -$15,323,277 | -11% | Mixed | 15 Sep 2026 |
| John Wendell Thompson | Director | $106,465,196 | -$12,100,461 | -10% | Mixed | 02 Nov 2026 |
| Enrique T. Salem | Director | $87,838,679 | Mixed | 24 Jun 2025 | ||
| Brian K. McCarthy | Pres.,Global Sales & Field Ops | $74,853,285 | -$2,741,576 | -3.5% | Mixed | 31 Jan 2026 |
| Lightspeed Management Company, L.L.C. | 10%+ Owner | $72,099,739 | Mixed | 30 Jun 2025 | ||
| Mark D. McLaughlin | Director | $7,143,356 | +$502,220 | +7.6% | Mixed | 03 Jun 2026 |
| Yvonne Wassenaar | Director | $3,288,430 | -$669,062 | -17% | Mixed | 04 Nov 2026 |
| Rakefet Russak-Aminoach | Director | $827,205 | Mixed | 26 Aug 2026 | ||
| Richard Scott Herren | Director | $365,365 | Mixed | 03 Jun 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 | -19.4% | -$84,076 | $116.61 | -721 | 2,988 | 04 Nov 2026 | Direct |
| Yvonne Wassenaar | RBRK | Class A Common Stock | Conversion of derivative security | 24.1% | 721 | 3,709 | 04 Nov 2026 | Direct | ||
| Yvonne Wassenaar | RBRK | Class B Common Stock | Conversion of derivative security | -2.21% | -721 | 31,882 | 04 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,513,762 | $118.08 | -12,820 | 272,538 | 04 Nov 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.7% | 12,820 | 285,358 | 04 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 9,961,649 | 04 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,495,799 | $116.68 | -12,820 | 272,538 | 03 Nov 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.7% | 12,820 | 285,358 | 03 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 9,974,469 | 03 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,505,246 | $117.41 | -12,820 | 272,538 | 02 Nov 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.7% | 12,820 | 285,358 | 02 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 9,987,289 | 02 Nov 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -56.8% | -$1,290,009 | $117.27 | -11,000 | 8,362 | 02 Nov 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 131.6% | 11,000 | 19,362 | 02 Nov 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -50% | -$293,184 | $117.27 | -2,500 | 2,500 | 02 Nov 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 Nov 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 02 Nov 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -19.7% | -11,000 | 44,946 | 02 Nov 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,591,523 | $124.14 | -12,820 | 272,538 | 07 Oct 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.7% | 12,820 | 285,358 | 07 Oct 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 10,000,109 | 07 Oct 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,617,541 | $126.17 | -12,820 | 272,538 | 06 Oct 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.7% | 12,820 | 285,358 | 06 Oct 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 10,012,929 | 06 Oct 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.49% | -$1,572,251 | $122.64 | -12,820 | 272,538 | 05 Oct 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 0.88% | 2,501 | 285,358 | 05 Oct 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.02% | -2,501 | 10,025,749 | 05 Oct 2026 | Direct | ||
| Yvonne Wassenaar | RBRK | Class A Common Stock | Sale | -19.4% | -$85,799 | $119.00 | -721 | 2,988 | 05 Oct 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -56.8% | -$1,272,630 | $115.69 | -11,000 | 8,362 | 01 Oct 2026 | Direct |
| John Wendell Thompson | RBRK | Class A Common Stock | Conversion of derivative security | 131.6% | 11,000 | 19,362 | 01 Oct 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class A Common Stock | Sale | -33.3% | -$289,193 | $115.68 | -2,500 | 5,000 | 01 Oct 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 Oct 2026 | Direct | ||
| John Wendell Thompson | RBRK | Class B Common Stock | Options Exercise | 22% | 11,000 | 61,001 | 01 Oct 2026 | Direct | ||
| John Wendell Thompson | RBRK | Stock Option (Right to Buy) | Options Exercise | -16.4% | -11,000 | 55,946 | 01 Oct 2026 | Direct | ||
| Bipul Sinha | RBRK | Class A Common Stock | Gift | -49.3% | -55,000 | 56,652 | 25 Sep 2026 | Direct | ||
| Bipul Sinha | RBRK | Prepaid Variable Forward Contract (obligation to sell) | Other | 500,000 | 500,000 | 25 Sep 2026 | By SPV | |||
| Bipul Sinha | RBRK | Class A Common Stock | Conversion of derivative security | 97.1% | 55,000 | 111,652 | 24 Sep 2026 | Direct | ||
| Bipul Sinha | RBRK | Class A Common Stock | Conversion of derivative security | 500,000 | 500,000 | 24 Sep 2026 | By SPV | |||
| Bipul Sinha | RBRK | Class B Common Stock | Conversion of derivative security | -4.94% | -555,000 | 10,679,839 | 24 Sep 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Sale | -0.62% | -$643,922 | $107.32 | -6,000 | 958,078 | 17 Sep 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Tax liability | -3.56% | -10,436 | 282,857 | 15 Sep 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Tax liability | -1.43% | -13,995 | 964,078 | 15 Sep 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Sale | -0.41% | -$404,186 | $101.05 | -4,000 | 978,073 | 15 Sep 2026 | Direct |
| Kiran Kumar Choudary | RBRK | Class A Common Stock | Conversion of derivative security | 0.41% | 4,000 | 982,073 | 15 Sep 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Conversion of derivative security | -100% | -4,000 | 0 | 15 Sep 2026 | Direct | ||
| Kiran Kumar Choudary | RBRK | Class B Common Stock | Options Exercise | 4,000 | 4,000 | 15 Sep 2026 | Direct | |||
| Kiran Kumar Choudary | RBRK | Stock Option (Right to Buy) | Options Exercise | -25.9% | -4,000 | 11,450 | 15 Sep 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Sale | -4.19% | -$1,159,040 | $90.41 | -12,820 | 293,293 | 10 Sep 2026 | Direct |
| Arvind Nithrakashyap | RBRK | Class A Common Stock | Conversion of derivative security | 4.37% | 12,820 | 306,113 | 10 Sep 2026 | Direct | ||
| Arvind Nithrakashyap | RBRK | Class B Common Stock | Conversion of derivative security | -0.13% | -12,820 | 10,028,250 | 10 Sep 2026 | Direct |
* marks a reported price that did not pass the local price check.