Rubrik director Thompson sells 13,500 shares
Sales of the reported Class A shares were made under a Rule 10b5-1 plan adopted October 6, 2025.
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Form Type
4
Rhea-AI Filing Summary
Rubrik, Inc. (RBRK) director John Wendell Thompson reported exercising fully vested options for 11,000 Class B shares at an exercise price of $4.38 per share on October 1, 2026; the shares were converted into 11,000 Class A shares. The stock-option row lists 55,946 shares following the transaction.
Thompson also reported sales of 13,500 Class A shares on October 1, 2026. The six reported weighted-average sale prices were $114.68, $115.62, $116.47, $114.71, $115.57 and $116.46 per share. The sales were effected under a Rule 10b5-1 trading plan adopted October 6, 2025. Some sold shares were held of record by the John and Sandra Thompson Trust; Thompson is a co-trustee and shares voting and dispositive power with his spouse. A separate holding entry lists 815,338 Class B shares held by the trust, with Class A Common Stock identified as the underlying security.
Insights
Analyzing...
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
11 txns
Insider
THOMPSON JOHN WENDELL
Role
Director
Sold
13,500 shs ($1.56M)
Approx. gross sale proceeds
$1.56M
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F9 | 11,000 | $0.00 | $0.00 |
| Exercise | Class B Common Stock F10 | 11,000 | -- | -- |
| Conversion | Class B Common Stock F10 | 11,000 | -- | -- |
| Sale | Class A Common Stock F1, F2, F3 | 300 | $114.68 | $34K |
| Sale | Class A Common Stock F1, F4, F3 | 1,700 | $115.62 | $197K |
| Sale | Class A Common Stock F1, F5, F3 | 500 | $116.47 | $58K |
| Conversion | Class A Common Stock | 11,000 | $0.00 | $0.00 |
| Sale | Class A Common Stock F1, F6 | 896 | $114.71 | $103K |
| Sale | Class A Common Stock F1, F7 | 7,710 | $115.57 | $891K |
| Sale | Class A Common Stock F1, F8 | 2,394 | $116.46 | $279K |
| holding | Class B Common Stock F10, F3 | -- | -- | -- |
Holdings After Transaction:
Stock Option (Right to Buy) — 55,946 contracts (Direct);
Class B Common Stock — 50,001 contracts (Direct);
Class A Common Stock — 5,000 shares (Indirect, By John and Sandra Thompson Trust);
Class A Common Stock — 8,362 shares (Direct);
Class B Common Stock — 815,338 contracts (Indirect, By John and Sandra Thompson Trust)
Footnotes (10)
- F1. This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 6, 2025.
- F2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.18 to $115.16 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F3. The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.
- F4. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.20 to $115.99 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F5. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.34 to $116.65 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F6. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.11 to $115.10 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F7. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.12 to $116.11 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F8. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.16 to $116.97 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.
- F9. Fully vested.
- F10. 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.
Key Figures
Class A shares sold: 13,500 shares
Options exercised: 11,000 shares
Exercise price: $4.38 per share
+2 more
5 metrics
Class A shares sold
13,500 shares
Reported on October 1, 2026
Options exercised
11,000 shares
For Class B shares on October 1, 2026
Exercise price
$4.38 per share
Reported option exercise on October 1, 2026
Shares following option transaction
55,946 shares
Reported after the October 1, 2026 transaction
Class B shares held by trust
815,338 shares
Holding entry identifies Class A Common Stock as the underlying security
Key Terms
Rule 10b5-1 trading plan, weighted average price, voting and dispositive power, Class B Common Stock
4 terms
Rule 10b5-1 trading plan regulatory
"effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The reported price in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
voting and dispositive power regulatory
"shares voting and dispositive power with his spouse"
Class B Common Stock financial
"Each share of Class B Common Stock held by the Reporting Person"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What options did John Wendell Thompson exercise in RBRK?
Thompson exercised fully vested options for 11,000 Class B shares on October 1, 2026, at $4.38 per share. The shares converted into 11,000 Class A shares, and the stock-option row lists 55,946 shares following the transaction.
AI-generated analysis. How Rhea-AI works. Not financial advice.
