NITHRAKASHYAP ARVIND (Chief Technology Officer) sold 41.7% of their position (225.09K shares) of RUBRIK, INC. on the open market

Open‑market sale worth $18.87M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 17 sales

NITHRAKASHYAP ARVIND

Filed: 6/4/2026ACC: 0002019143-26-000011

InsiderNITHRAKASHYAP ARVINDCIK 2019143

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IssuerRUBRIK, INC.CIK 1943896

DirectorOfficer10% Owner· Chief Technology Officer

Since Apr 2024

-225.09K

Net shares

Net seller

$18.87M

Total sold

Open market trades

0B · 17S

Total transactions

97.63K acquired · 322.72K disposed

Non-Derivative Transactions20

Class A Common Stock

Direct

C · Conversion

+71.99K

Price / share

—

Trade value

—

% of position

16.3%

6/1/2026

441.50K→513.50K

Class A Common Stock

Direct

S · Sale

−4.16K

Price / share

$79.68

Trade value

$331.07K

% of position

0.8%

6/1/2026

513.50K→509.34K

Class A Common Stock

Direct

S · Sale

−1.94K

Price / share

$80.99

Trade value

$156.96K

% of position

0.4%

6/1/2026

509.34K→507.40K

Class A Common Stock

Direct

S · Sale

−22.24K

Price / share

$82.11

Trade value

$1.83M

% of position

4.4%

6/1/2026

507.40K→485.16K

Class A Common Stock

Direct

S · Sale

−22.21K

Price / share

$82.72

Trade value

$1.84M

% of position

4.6%

6/1/2026

485.16K→462.96K

Class A Common Stock

Direct

S · Sale

−28.33K

Price / share

$84.14

Trade value

$2.38M

% of position

6.1%

6/1/2026

462.96K→434.63K

Class A Common Stock

Direct

S · Sale

−72.69K

Price / share

$84.75

Trade value

$6.16M

% of position

16.7%

6/1/2026

434.63K→361.94K

Class A Common Stock

Direct

S · Sale

−47.63K

Price / share

$85.90

Trade value

$4.09M

% of position

13.2%

6/1/2026

361.94K→314.31K

Class A Common Stock

Direct

S · Sale

−262.00

Price / share

$86.40

Trade value

$22.64K

% of position

0.1%

6/1/2026

314.31K→314.05K

Class A Common Stock

Direct

C · Conversion

+12.82K

Price / share

—

Trade value

—

% of position

4.1%

6/2/2026

314.05K→326.87K

Class A Common Stock

Direct

S · Sale

−1.83K

Price / share

$81.31

Trade value

$149.04K

% of position

0.6%

6/2/2026

326.87K→325.04K

Class A Common Stock

Direct

S · Sale

−9.99K

Price / share

$82.23

Trade value

$821.15K

% of position

3.1%

6/2/2026

325.04K→315.05K

Class A Common Stock

Direct

S · Sale

−831.00

Price / share

$82.88

Trade value

$68.87K

% of position

0.3%

6/2/2026

315.05K→314.22K

Class A Common Stock

Direct

S · Sale

−170.00

Price / share

$84.06

Trade value

$14.29K

% of position

0.1%

6/2/2026

314.22K→314.05K

Class A Common Stock

Direct

C · Conversion

+12.82K

Price / share

—

Trade value

—

% of position

4.1%

6/3/2026

314.05K→326.87K

Class A Common Stock

Direct

S · Sale

−1.03K

Price / share

$76.66

Trade value

$78.73K

% of position

0.3%

6/3/2026

326.87K→325.84K

Class A Common Stock

Direct

S · Sale

−1.70K

Price / share

$77.68

Trade value

$132.06K

% of position

0.5%

6/3/2026

325.84K→324.14K

Class A Common Stock

Direct

S · Sale

−4.25K

Price / share

$78.96

Trade value

$335.26K

% of position

1.3%

6/3/2026

324.14K→319.89K

Class A Common Stock

Direct

S · Sale

−5.66K

Price / share

$79.56

Trade value

$449.91K

% of position

1.8%

6/3/2026

319.89K→314.24K

Class A Common Stock

Direct

S · Sale

−192.00

Price / share

$80.45

Trade value

$15.45K

% of position

0.1%

6/3/2026

314.24K→314.05K

Total

Net shares

−127.45K

Net value

-$18.87M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	6/1/2026	C · Conversion	+71.99K	—	—	16.3%	441.50K	513.50K
Class A Common Stock Direct	6/1/2026	S · Sale	−4.16K	$79.68	$331.07K	0.8%	513.50K	509.34K
Class A Common Stock Direct	6/1/2026	S · Sale	−1.94K	$80.99	$156.96K	0.4%	509.34K	507.40K
Class A Common Stock Direct	6/1/2026	S · Sale	−22.24K	$82.11	$1.83M	4.4%	507.40K	485.16K
Class A Common Stock Direct	6/1/2026	S · Sale	−22.21K	$82.72	$1.84M	4.6%	485.16K	462.96K
Class A Common Stock Direct	6/1/2026	S · Sale	−28.33K	$84.14	$2.38M	6.1%	462.96K	434.63K
Class A Common Stock Direct	6/1/2026	S · Sale	−72.69K	$84.75	$6.16M	16.7%	434.63K	361.94K
Class A Common Stock Direct	6/1/2026	S · Sale	−47.63K	$85.90	$4.09M	13.2%	361.94K	314.31K
Class A Common Stock Direct	6/1/2026	S · Sale	−262.00	$86.40	$22.64K	0.1%	314.31K	314.05K
Class A Common Stock Direct	6/2/2026	C · Conversion	+12.82K	—	—	4.1%	314.05K	326.87K
Class A Common Stock Direct	6/2/2026	S · Sale	−1.83K	$81.31	$149.04K	0.6%	326.87K	325.04K
Class A Common Stock Direct	6/2/2026	S · Sale	−9.99K	$82.23	$821.15K	3.1%	325.04K	315.05K
Class A Common Stock Direct	6/2/2026	S · Sale	−831.00	$82.88	$68.87K	0.3%	315.05K	314.22K
Class A Common Stock Direct	6/2/2026	S · Sale	−170.00	$84.06	$14.29K	0.1%	314.22K	314.05K
Class A Common Stock Direct	6/3/2026	C · Conversion	+12.82K	—	—	4.1%	314.05K	326.87K
Class A Common Stock Direct	6/3/2026	S · Sale	−1.03K	$76.66	$78.73K	0.3%	326.87K	325.84K
Class A Common Stock Direct	6/3/2026	S · Sale	−1.70K	$77.68	$132.06K	0.5%	325.84K	324.14K
Class A Common Stock Direct	6/3/2026	S · Sale	−4.25K	$78.96	$335.26K	1.3%	324.14K	319.89K
Class A Common Stock Direct	6/3/2026	S · Sale	−5.66K	$79.56	$449.91K	1.8%	319.89K	314.24K
Class A Common Stock Direct	6/3/2026	S · Sale	−192.00	$80.45	$15.45K	0.1%	314.24K	314.05K
Total			−127.45K		-$18.87M

Derivative Transactions3

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

71.99K shares

−71.99K

Strike price

Held after

10.16M

Exercisable

—

6/1/2026

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

12.82K shares

−12.82K

Strike price

Held after

10.15M

Exercisable

—

6/2/2026

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

12.82K shares

−12.82K

Strike price

Held after

10.13M

Exercisable

—

6/3/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock71.99K shares	6/1/2026	C · Conversion	−71.99K	—	10.16M
Class B Common Stock Direct	Class A Common Stock12.82K shares	6/2/2026	C · Conversion	−12.82K	—	10.15M
Class B Common Stock Direct	Class A Common Stock12.82K shares	6/3/2026	C · Conversion	−12.82K	—	10.13M

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)1

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

200K

Shares owned

200K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

200K

Owned

200K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Indirect	Class A Common Stock		—	—	200K	200K
Total					200K	200K