Form 4 for RBRK Rubrik, Inc.
Accepted 2026-09-03 21:05:45 ET · period of report 2026-09-03 · accession 0001707744-26-000021 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-09-03 21:05 | 2026-09-03 | RBRK | Wassenaar Yvonne | Dir | C - Cnv Deriv | $0.00 | +513 | 4,430 | +13% | $0 |
| DT | 2026-09-03 21:05 | 2026-09-03 | RBRK | Wassenaar Yvonne | Dir | S - Sale | $89.52 | -721 | 3,709 | -16% | -$64.5K |
| DT | 2026-09-03 21:05 | 2026-09-03 | RBRK | Wassenaar Yvonne | Dir | C - Cnv Deriv | $0.00 | -513 | 32.6K | -2% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2026-09-03 | C | A | 513 | $0.00 | 4,430 | D | — | — | |
| 2 | Common | Class A Common Stock | 2026-09-03 | S | D | 721 | $89.52 | 3,709 | D | — | — | (F1) This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted December 15, 2025. |
| 3 | Derivative | Class B Common Stock | 2026-09-03 | C | D | 513 | $0.00 | 32,603 | D | — · — to — | 513 Class A Common Stock | (F2) Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. (F2) Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. (F2) Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. |