Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
Lightspeed Venture Partners IX, L.P. - 31 Dec 2025 SCHEDULE 13G/A Report for RUBRIK, INC. Class A Common Stock, $0.000025 par value (RBRK)
- Filing manager
- Lightspeed Venture Partners IX, L.P.
- Reporting owner
- LS SPV Management, LLC
- Beneficially owned shares
- 4,396,744 shares
- Large-stake signal
-
Ownership
2.8%Beneficial ownership of this reported class.
Shares
4,396,744 sharesShares beneficially owned as disclosed.
Event date
31 Dec 2025Date tied to the ownership event or amendment.
Accepted by SEC
17 Feb 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 2.8%
- Symbol
- RBRK
- Shares outstanding
- 157,026,571 shares
- SEC form
- SCHEDULE 13G/A
- Accepted by SEC
- 17 Feb 2026, 19:01:36 UTC
- Event date
- 31 Dec 2025
- Prior SEC filing
- 14 Aug 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
Lightspeed Venture Partners IX, L.P. disclosed 2.8% ownership in RUBRIK, INC. Class A Common Stock, $0.000025 par value (RBRK) on 31 Dec 2025.
Key facts
- Lightspeed Venture Partners IX, L.P. filed SCHEDULE 13G/A for RUBRIK, INC. Class A Common Stock, $0.000025 par value (RBRK).
- Disclosed ownership: 2.8%.
- Date of event: 31 Dec 2025.
Change
- Previous schedule filing date: 14 Aug 2025.
- Current filing was accepted on 17 Feb 2026, 19:01.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (14)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Lightspeed Venture Partners IX, L.P. | 2.6% | 4,162,362 | 0 | 4,162,362 | /s/ Ravi Mhatre | See Note 1 | |
| Lightspeed General Partner IX, L.P. | 2.6% | 4,162,362 | 0 | 4,162,362 | /s/ Ravi Mhatre | By Lightspeed Ultimate General Partner IX, Ltd., its General Partner, By Ravi Mhatre, Director | |
| Lightspeed Ultimate General Partner IX, Ltd. | 2.6% | 4,162,362 | 0 | 4,162,362 | /s/ Ravi Mhatre | By Ravi Mhatre, Director | |
| Lightspeed SPV I, LLC | 1.2% | 1,880,593 | 0 | 1,880,593 | /s/ Ravi Mhatre | By LS SPV Management, LLC, its Manager, By Ravi Mhatre, Managing Member | |
| Lightspeed SPV I-B, LLC | 0.9% | 1,480,133 | 0 | 1,480,133 | /s/ Ravi Mhatre | By LS SPV Management, LLC, its Manager, By Ravi Mhatre, Managing Member | |
| Lightspeed SPV I-C, LLC | 0.7% | 1,036,018 | 0 | 1,036,018 | /s/ Ravi Mhatre | By LS SPV Management, LLC, its Manager, By Ravi Mhatre, Managing Member | |
| LS SPV Management, LLC | 2.8% | 4,396,744 | 0 | 4,396,744 | /s/ Ravi Mhatre | By Ravi Mhatre, Managing Member | |
| Lightspeed Venture Partners Select II, L.P. | 0.6% | 966,307 | 0 | 966,307 | /s/ Ravi Mhatre | See Note 2 | |
| Lightspeed General Partner Select II, L.P. | 0.6% | 966,307 | 0 | 966,307 | /s/ Ravi Mhatre | By Lightspeed Ultimate General Partner Select II, Ltd., its General Partner, By Ravi Mhatre, Director | |
| Lightspeed Ultimate General Partner Select II, Ltd. | 0.6% | 966,307 | 0 | 966,307 | /s/ Ravi Mhatre | By Ravi Mhatre, Director | |
| Lightspeed Venture Partners X, L.P. | 0% | 0 | 0 | 0 | /s/ Ravi Mhatre | See Note 3 | |
| Lightspeed General Partner X, L.P. | 0% | 0 | 0 | 0 | /s/ Ravi Mhatre | By Lightspeed Ultimate General Partner X, Ltd., its General Partner, By Ravi Mhatre, Director | |
| Lightspeed Ultimate General Partner X, Ltd. | 0% | 0 | 0 | 0 | /s/ Ravi Mhatre | By Ravi Mhatre, Director | |
| Lightspeed Management Company, L.L.C. | 0% | 0 | 0 | 0 | /s/ Ravi Mhatre | By Ravi Mhatre, Managing Member |
CIK / CUSIP context first