Rubrik RBRK Insider Ownership

NYSE RBRK

$113.35 +0.94 (+0.84%)

As of: Oct 19, 2026 · 3:59 PM EDT

Insider Holdings by Owner

97.79Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

23.81%

▼-1.41% pp QoQ

Shares Held by Insiders

49.37Mn

filed for Sep 2026

▼-4.91% QoQ

Shares Outstanding

207.30Mn

207,304,433 shares

Direct Holdings

28.80Mn

Indirect: 20.56Mn

Net Shares Traded (QoQ)

-2.55Mn

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, Rubrik insiders bought $502,220 of stock on the open market (10.64K shares) and sold $78.31 million (1.02Mn shares).

Rubrik's open-market purchases in the past 12 months came from one insider, and its sales from 6 insiders.
Among Rubrik insiders, Mark D. McLaughlin (Director) led open-market buying over the past 12 months with $502,220 of purchases (10.64K shares); the latest was on March 30, 2026.
Conversely, Arvind Nithrakashyap (Chief Technology Officer) was RBRK's largest open-market seller in the past 12 months, with $37.72 million of sales (445.04K shares); the latest was on October 7, 2026.
Apart from open-market trades, RBRK insiders received 1.01Mn shares in stock awards, acquired 9.44Mn shares through option exercises and conversions, gave up 48.86K shares to cover taxes or exercise prices and gave away 155K shares as gifts in the past 12 months.
Per Business Quant, RBRK insiders together hold 49.32Mn shares based on their latest Form 4 filings, or 23.79% of the 207.3Mn shares outstanding; that total is down 4.99% from 51.92Mn shares at the end of Q2 2026 and down 2.73% from 50.71Mn shares at the end of Q3 2025.
Rubrik insiders hold 28.77Mn shares directly (58.32% of their total) and 20.56Mn shares (41.68%) indirectly, through entities such as trusts and partnerships.
Holdings in Rubrik stock are reported by 16 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
RBRK's largest insider holders by reported holdings are Bipul Sinha (Chairman of the Board and CEO, 11.24Mn shares), Arvind Nithrakashyap (Chief Technology Officer, 10.47Mn shares) and Greylock XIV GP LLC (10% owner, 9.7Mn shares).
Of the shares held by RBRK insiders, 22.78% belong to Bipul Sinha.
Institutional holders reported 63.13% of Rubrik's outstanding shares for Q2 2026.
In the past year, 11 insiders of Rubrik submitted 72 Form 4 filings reporting trades, awards or other transactions.
This summary of Rubrik insider activity covers Form 4 filings through October 7, 2026.

Form 4 Holdings

Insiders Holding RBRK

Insiders 17

Shares held 97.79Mn

Of outstanding 47.17%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Spv I, Llc Lightspeed	TenPercentOwner	10,011,037	12,945,165	22,956,202	23.5%	27 Mar, 2025
2	Barry Eggers	TenPercentOwner	5,608,998	7,971,167	13,580,165	13.9%	30 Jun, 2025
3	Venture Partners Ix, L.P. Lightspeed	TenPercentOwner	5,608,998	7,971,167	13,580,165	13.9%	30 Jun, 2025
4	Bipul Sinha	Chairman Of The Board And Ceo	10,736,491	500,000	11,236,491	11.5%	25 Sep, 2026
5	Arvind Nithrakashyap	Chief Technology Officer	10,272,647	0	10,272,647	10.5%	07 Oct, 2026
6	Xiv Gp Llc Greylock	TenPercentOwner	0	9,947,659	9,947,659	10.2%	01 Apr, 2025
7	Spv I-B, Llc Lightspeed	TenPercentOwner	4,330,511	3,031,358	7,361,869	7.5%	17 Jan, 2025
8	Ravi Mhatre	Director	125,351	5,370,769	5,496,120	5.6%	14 Jul, 2026
9	Enrique T Salem	Director	76	1,359,640	1,359,716	1.4%	26 Jun, 2025
10	Kiran Kumar Choudary	Chief Financial Officer	958,078	0	958,078	1.0%	17 Sep, 2026
11	Brian K. Mccarthy	Pres.,Global Sales Field Ops	772,794	0	772,794	0.8%	03 Feb, 2026
12	Richard Scott Herren	Director	82,461	0	82,461	0.1%	03 Jun, 2026
13	Mark D Mclaughlin	Director	70,028	0	70,028	0.1%	05 Jun, 2026
14	John Wendell Thompson	Director	58,363	5,000	63,363	0.1%	02 Oct, 2026
15	Yvonne Wassenaar	Director	35,591	0	35,591	0.0%	06 Oct, 2026
16	Rakefet Russak-Aminoach	Director	10,304	0	10,304	0.0%	28 Aug, 2026
17	Asheem Chandna	Director	6,249	0	6,249	0.0%	05 Jun, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,466 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Acquired C	2,501	$0.00	$0	285,358	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	495	$118.92	$58.87K	284,863	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	110	$120.26	$13.23K	284,753	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	901	$121.20	$109.20K	283,852	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	2,801	$121.95	$341.58K	281,051	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	5,600	$122.99	$688.74K	275,451	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	2,913	$123.80	$360.63K	272,538	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Acquired C	12,820	$0.00	$0	285,358	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	582	$125.35	$72.95K	284,776	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	11,101	$126.14	$1.40Mn	273,675	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	1,069	$126.87	$135.62K	272,606	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	68	$127.70	$8.68K	272,538	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Acquired C	12,820	$0.00	$0	285,358	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	1,478	$123.32	$182.27K	283,880	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	8,274	$124.05	$1.03Mn	275,606	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	3,055	$124.79	$381.23K	272,551	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed S	13	$125.57	$1.63K	272,538	Direct
05 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed C	2,501	$0.00	$0	10,025,749	Direct
06 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed C	12,820	$0.00	$0	10,012,929	Direct
07 Oct, 2026	Arvind Nithrakashyap	Chief Technology Officer	Disposed C	12,820	$0.00	$0	10,000,109	Direct

Showing 1 to 20 of 1,466 transactions