Rubrik (RBRK) CTO Arvind logs 225k share sales and conversions under 10b5-1 plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Rubrik, Inc. director and CTO Nithrakashyap Arvind reported a mix of open-market sales and share conversions in early June 2026. Over June 1–3, he sold a total of 225,087 shares of Class A Common Stock in multiple open-market transactions at prices generally in the mid‑$70s to mid‑$80s per share, under a pre‑arranged Rule 10b5‑1 trading plan adopted on October 15, 2025.
Across the same dates, he converted 97,633 shares of Class B Common Stock into Class A Common Stock at a stated price of $0.00 per share through derivative conversions. After these transactions, one table entry shows 326,868 shares of Class A Common Stock held directly, 10,133,312 shares of Class B Common Stock held directly, and a further 200,000 shares of Class B Common Stock held indirectly through the Nithrakashyap/Chatterjee Revocable Trust, which he shares voting and dispositive power over with his spouse. Each share of Class B is convertible into one share of Class A and has no expiration date.
Positive
- None.
Negative
- None.
Insights
CTO’s pre‑planned sales are sizable but leave a large remaining stake.
Rubrik’s CTO and director, Nithrakashyap Arvind, reported net open‑market sales of 225,087 Class A shares and derivative conversions of 97,633 Class B into Class A. A footnote states the sales were made under a Rule 10b5‑1 trading plan adopted on October 15, 2025, indicating the timing was pre‑scheduled rather than discretionary.
Following these transactions, tabular entries show he still holds 326,868 Class A shares directly, 10,133,312 Class B shares directly, and 200,000 Class B shares indirectly via a revocable trust, all of which are convertible one‑for‑one into Class A. That remaining position suggests the activity reflects partial liquidity rather than a full exit.
Because the filing does not quantify these holdings relative to Rubrik’s total shares outstanding, the broader impact on ownership structure cannot be assessed here. Overall, with large ongoing holdings and a pre‑planned trading program, this Form 4 reads as a routine but sizable insider liquidity event rather than a clear shift in company outlook.
Insider Trade Summary 10b5-1
Net Seller: 225,087 shares ($18,873,677)
Net Sell
24 txns
Insider
Nithrakashyap Arvind
Role
Chief Technology Officer
Sold
225,087 shs ($18.87M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Conversion | Class B Common Stock | 12,820 | $0.00 | -- |
| Conversion | Class A Common Stock | 12,820 | $0.00 | -- |
| Sale | Class A Common Stock | 1,027 | $76.66 | $79K |
| Sale | Class A Common Stock | 1,700 | $77.68 | $132K |
| Sale | Class A Common Stock | 4,246 | $78.96 | $335K |
| Sale | Class A Common Stock | 5,655 | $79.56 | $450K |
| Sale | Class A Common Stock | 192 | $80.45 | $15K |
| Conversion | Class B Common Stock | 12,820 | $0.00 | -- |
| Conversion | Class A Common Stock | 12,820 | $0.00 | -- |
| Sale | Class A Common Stock | 1,833 | $81.31 | $149K |
| Sale | Class A Common Stock | 9,986 | $82.23 | $821K |
| Sale | Class A Common Stock | 831 | $82.88 | $69K |
| Sale | Class A Common Stock | 170 | $84.06 | $14K |
| Conversion | Class B Common Stock | 71,993 | $0.00 | -- |
| Conversion | Class A Common Stock | 71,993 | $0.00 | -- |
| Sale | Class A Common Stock | 4,155 | $79.68 | $331K |
| Sale | Class A Common Stock | 1,938 | $80.99 | $157K |
| Sale | Class A Common Stock | 22,240 | $82.11 | $1.83M |
| Sale | Class A Common Stock | 22,206 | $82.72 | $1.84M |
| Sale | Class A Common Stock | 28,329 | $84.14 | $2.38M |
| Sale | Class A Common Stock | 72,687 | $84.75 | $6.16M |
| Sale | Class A Common Stock | 47,630 | $85.90 | $4.09M |
| Sale | Class A Common Stock | 262 | $86.40 | $23K |
| holding | Class B Common Stock | -- | -- | -- |
Holdings After Transaction:
Class B Common Stock — 10,133,312 shares (Direct, null);
Class A Common Stock — 326,868 shares (Direct, null);
Class B Common Stock — 200,000 shares (Indirect, By Arvind Nithrakashyap, as Trustee of the Nithrakashyap Chatterjee Revocable Trust)
Footnotes (1)
- This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.38 to $80.16 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.415 to $81.375 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.46 to $82.37 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.38 to $83.37 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.535 to $84.375 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.38 to $85.375 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.38 to $86.37 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.385 to $86.45 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.73 to $81.725 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.765 to $82.725 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.73 to $83.66 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.895 to $84.20 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.22 to $77.17 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.225 to $78.215 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.235 to $79.215 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.235 to $80.195 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.24 to $80.64 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. 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 is also convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The shares are held of record by Arvind Nithrakashyap, as Trustee of the Nithrakashyap/Chatterjee Revocable Trust, for which the Reporting Person serves as trustee and shares voting and dispositive power with his spouse.
Key Figures
Total Class A shares sold: 225,087 shares
Shares converted from Class B to Class A: 97,633 shares
Direct Class A holdings: 326,868 shares
+5 more
8 metrics
Total Class A shares sold
225,087 shares
Open-market sales over June 1–3, 2026
Shares converted from Class B to Class A
97,633 shares
Derivative conversions at $0.00 per share
Direct Class A holdings
326,868 shares
Total shares following latest reported Class A conversion entry
Direct Class B holdings
10,133,312 shares
Total Class B shares following June 3, 2026 conversion
Indirect Class B holdings via trust
200,000 shares
Held by Nithrakashyap/Chatterjee Revocable Trust, underlying Class A
Example sale price
$86.4000 per share
June 1, 2026 Class A sale transaction
Lowest reported price range
$76.22–$77.17 per share
Weighted-average price range described in footnote F14
Highest reported price range
$86.385–$86.45 per share
Weighted-average price range described in footnote F9
Key Terms
Rule 10b5-1 trading plan, weighted average price, Class B Common Stock, derivative conversion, +1 more
5 terms
Rule 10b5-1 trading plan financial
"This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025."
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 into one share of Class A Common Stock..."
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.
derivative conversion financial
"transaction_action": "derivative conversion","transaction_code_description": "Conversion of derivative security""
revocable trust financial
"the Nithrakashyap/Chatterjee Revocable Trust, for which the Reporting Person serves as trustee and shares voting and dispositive power"
A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.
FAQ
What insider transactions did Rubrik (RBRK) CTO Nithrakashyap Arvind report?
He reported open-market sales of 225,087 Rubrik Class A shares and derivative conversions of 97,633 Class B into Class A. These trades occurred over June 1–3, 2026 and involved multiple price ranges in the mid‑$70s to mid‑$80s per share.
Were Rubrik (RBRK) CTO Nithrakashyap Arvind’s stock sales pre-planned?
Yes. A footnote states the sale reported on this Form 4 was effected under a Rule 10b5-1 trading plan adopted on October 15, 2025. Such plans schedule trades in advance, reducing the significance of short-term market timing in interpreting insider activity.
What prices did Rubrik (RBRK) CTO Nithrakashyap Arvind receive for his stock sales?
Individual transaction rows show weighted average sale prices such as $86.40, $85.90, $84.75 and down to $76.66 per share. Footnotes explain each reported price reflects multiple trades within specified ranges, for example $79.38 to $80.16 per share.
What do the Class B to Class A conversions mean for Rubrik (RBRK) CTO holdings?
He converted 97,633 Class B shares into Class A at a stated $0.00 price via derivative conversions. A footnote clarifies each Class B share can convert into one Class A share at any time and automatically converts upon certain transfers, with no expiration date.