Transaction · 0002019143-26-000023

Nithrakashyap Arvind

Nithrakashyap Arvind, CTO, reported an open-market or private sale at Rubrik, Inc. involving 13.000000 shares for an estimated $1632.41. Reported holdings after the transaction were 272538.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCTO
RBRKRubrik, Inc.
Filing timeOct 07
Trade dateOct 07, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded<0.01%Shares sold ÷ (holdings after + shares sold). Estimated position before: 272,551 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$123.73
Pre-filing
1mo ago -24.3%1w ago -7.5%1d ago +1.7%
Returns since
7d30d90d180d1y

RBRK price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
RBRK since 2026-10-07Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0002019143-26-000023
Class A Common Stock
Transaction date
Oct 07, 2026
Filed Oct 07, 2026, 10:55 PM · 0d delay
Shares
13 sh
$125.57 per share
Estimated value
-$1.63k
Computed from shares × price
Holdings after
272k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Repeat Seller 10b5-1 Detected
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Technology Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025.

  2. F2

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.48 to $119.47 per share, inclusive. The Reporting Person underta…

  3. F3

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.065 to $120.425 per share, inclusive. The Reporting Person under…

  4. F4

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.54 to $121.4775

  5. 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 re…

  6. F5

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.49 to $122.45 per share, inclusive. The Reporting Person underta…

  7. F6

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.48 to $123.475 per share, inclusive. The Reporting Person undert…

  8. F7

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.49 to $124.17 per share, inclusive. The Reporting Person underta…

  9. F8

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.655 to $125.61 per share, inclusive. The Reporting Person undert…

  10. F9

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $125.675 to $126.645 per share, inclusive. The Reporting Person under…

  11. F10

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $126.655 to $127.445 per share, inclusive. The Reporting Person under…

  12. F11

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $127.69 to $127.70 per share, inclusive. The Reporting Person underta…

  13. F12

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.565 to $123.55 per share, inclusive. The Reporting Person undert…

  14. F13

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.565 to $124.56 per share, inclusive. The Reporting Person undert…

  15. F14

    The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.5725 to $125.535 per share, inclusive. The Reporting Person unde…

  16. F15

    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, subje…

  17. F16

    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 po…

Original filing · 0002019143-26-000023
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Same reporting owner
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RBRK