Changes in Beneficial Ownership · 4
Rubrik, Inc.
RBRKNYSEEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4
form4-10062026_091053.xml
Filing details
- Report period
- 2026-10-05
- Issuer
- Rubrik, Inc.
- Issuer CIK
- 0001943896
- Trading symbol
- RBRK
- Rule 10b5-1 indication
- Checked
Reporting owner 1
- Name
- Wassenaar Yvonne
- Reporting owner CIK
- 0001707744
- Relationship
- Director
- Address
- C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO, CA, 94304
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| Class A Common Stock | 2026-10-05 | S · Form 4[F1] | 721 | D | 119 | 2,988 | D |
Table key
- S · Form 4
- Sale on the market or privately
- D
- Direct
Footnotes
- F1
- This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted December 15, 2025.↩ 1
Signature 1
- Signed
- /s/ Anne-Kathrin Lalendran, Attorney-in-Fact
- Date
- 2026-10-06
Company context
Rubrik (NYSE: RBRK), the Security and AI Operations Company, leads at the intersection of data protection, cyber resilience, and enterprise AI acceleration. Rubrik Security Cloud delivers complete cyber resilience by securing, monitoring, and recovering data, identities, and workloads across clouds. Rubrik Agent Cloud accelerates trusted AI agent deployments at scale by monitoring and auditing agentic actions, enforcing real-time guardrails, fine-tuning for accuracy and undoing agentic mistakes.