[Form 4] Rubrik, Inc. Insider Trading Activity
Rubrik director John Wendell Thompson exercised and converted derivatives and sold shares of Class A Common Stock.
Rhea-AI Filing Summary
Rubrik director John Wendell Thompson exercised and converted derivatives and sold shares of Class A Common Stock. On April 1, 2026, he exercised options for 11,000 shares at $4.38 per share and converted Class B into Class A stock. That same day, entities associated with him sold a total of 13,500 Class A shares in open-market transactions at weighted average prices around $48–$49 per share under a pre-arranged Rule 10b5-1 trading plan. After these transactions, he held 4,653 Class A shares directly, 20,000 Class A shares through the John and Sandra Thompson Trust, and the trust also held 815,338 Class B shares convertible into an equal number of Class A shares.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
9 txns
Insider
THOMPSON JOHN WENDELL
Role
Director
Sold
13,500 shs ($660K)
Approx. gross sale proceeds
$660K
Approx. exercise cost
$48K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) | 11,000 | $0.00 | $0.00 |
| Exercise | Class B Common Stock | 11,000 | $0.00 | $0.00 |
| Conversion | Class B Common Stock | 11,000 | $0.00 | $0.00 |
| Sale | Class A Common Stock | 2,400 | $48.93 | $117K |
| Sale | Class A Common Stock | 100 | $49.60 | $5K |
| Conversion | Class A Common Stock | 11,000 | $0.00 | $0.00 |
| Sale | Class A Common Stock | 5,354 | $48.57 | $260K |
| Sale | Class A Common Stock | 5,646 | $49.22 | $278K |
| holding | Class B Common Stock | -- | -- | -- |
Holdings After Transaction:
Stock Option (Right to Buy) — 121,946 contracts (Direct);
Class B Common Stock — 50,001 contracts (Direct);
Class A Common Stock — 20,000 shares (Indirect, By John and Sandra Thompson Trust);
Class A Common Stock — 4,653 shares (Direct);
Class B Common Stock — 815,338 contracts (Indirect, By John and Sandra Thompson Trust)
Footnotes (7)
- 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 $48.46 to $49.45 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 $47.90 to $48.89 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 $48.91 to $49.64 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. Fully vested.
- F7. 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.
Key Figures
Options exercised: 11,000 shares
Option exercise price: $4.38 per share
Total shares sold: 13,500 shares
+5 more
8 metrics
Options exercised
11,000 shares
Stock Option (Right to Buy) exercised on April 1, 2026
Option exercise price
$4.38 per share
Conversion/exercise price for 11,000-share option
Total shares sold
13,500 shares
Net sell shares across four Class A sales on April 1, 2026
Direct Class A holding
4,653 shares
Class A Common Stock held directly after transactions
Indirect Class A holding
20,000 shares
Class A shares held via John and Sandra Thompson Trust after sales
Convertible Class B holding
815,338 shares
Class B shares held indirectly, each convertible into one Class A share
Sale prices range 1
$48.46–$49.45
Weighted average price range in one sale footnote
Sale prices range 2
$47.90–$48.89
Weighted average price range in another sale footnote
Key Terms
Rule 10b5-1 trading plan, weighted average price, Class B Common Stock, co-trustee, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"This sale reported on this Form 4 was 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.
Class B Common Stock financial
"Each share of Class B Common Stock held by the Reporting Person will automatically convert"
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.
co-trustee financial
"for which the Reporting Person serves as a co-trustee and shares voting and dispositive power"
voting and dispositive power financial
"serves as a co-trustee and shares voting and dispositive power with his spouse"
FAQ
What did Rubrik (RBRK) director John W. Thompson do in this Form 4?
Rubrik director John W. Thompson exercised derivatives and sold shares. He exercised options and converted Class B into Class A stock, then sold 13,500 Class A shares in open-market trades while retaining a substantial position through direct and trust holdings.
AI-generated analysis. How Rhea-AI works. Not financial advice.
