THOMPSON JOHN WENDELL sold 74.4% of their position (13.50K shares) of RUBRIK, INC. on the open market

Open‑market sale worth $1.14M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 11 sales

THOMPSON JOHN WENDELL

Filed: 6/4/2026ACC: 0001207433-26-000014

InsiderTHOMPSON JOHN WENDELLCIK 1207433

→

IssuerRUBRIK, INC.CIK 1943896

Director

Since Mar 2026

-9.79K

Net shares

Net seller

$1.14M

Total sold

Open market trades

0B · 11S

Total transactions

25.71K acquired · 35.50K disposed

Non-Derivative Transactions13

Class A Common Stock

Indirect

S · Sale

−100.00

Price / share

$79.91

Trade value

$7.99K

% of position

0.6%

6/1/2026

17.50K→17.40K

Class A Common Stock

Indirect

S · Sale

−300.00

Price / share

$82.45

Trade value

$24.73K

% of position

1.7%

6/1/2026

17.40K→17.10K

Class A Common Stock

Indirect

S · Sale

−160.00

Price / share

$83.49

Trade value

$13.36K

% of position

0.9%

6/1/2026

17.10K→16.94K

Class A Common Stock

Indirect

S · Sale

−1.14K

Price / share

$84.64

Trade value

$96.49K

% of position

6.7%

6/1/2026

16.94K→15.80K

Class A Common Stock

Indirect

S · Sale

−800.00

Price / share

$85.87

Trade value

$68.70K

% of position

5.1%

6/1/2026

15.80K→15K

Class A Common Stock

Direct

C · Conversion

+11K

Price / share

—

Trade value

—

% of position

236.4%

6/1/2026

4.65K→15.65K

Class A Common Stock

Direct

S · Sale

−200.00

Price / share

$79.77

Trade value

$15.95K

% of position

1.3%

6/1/2026

15.65K→15.45K

Class A Common Stock

Direct

S · Sale

−750.00

Price / share

$82.13

Trade value

$61.60K

% of position

4.9%

6/1/2026

15.45K→14.70K

Class A Common Stock

Direct

S · Sale

−991.00

Price / share

$82.73

Trade value

$81.99K

% of position

6.7%

6/1/2026

14.70K→13.71K

Class A Common Stock

Direct

S · Sale

−4K

Price / share

$84.41

Trade value

$337.64K

% of position

29.2%

6/1/2026

13.71K→9.71K

Class A Common Stock

Direct

S · Sale

−3.36K

Price / share

$85.30

Trade value

$286.52K

% of position

34.6%

6/1/2026

9.71K→6.35K

Class A Common Stock

Direct

S · Sale

−1.70K

Price / share

$86.07

Trade value

$146.32K

% of position

26.8%

6/1/2026

6.35K→4.65K

Class A Common Stock

Direct

A · Award

+3.71K

Price / share

—

Trade value

—

% of position

79.7%

6/3/2026

4.65K→8.36K

Total

Net shares

+1.21K

Net value

-$1.14M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	6/1/2026	S · Sale	−100.00	$79.91	$7.99K	0.6%	17.50K	17.40K
Class A Common Stock Indirect	6/1/2026	S · Sale	−300.00	$82.45	$24.73K	1.7%	17.40K	17.10K
Class A Common Stock Indirect	6/1/2026	S · Sale	−160.00	$83.49	$13.36K	0.9%	17.10K	16.94K
Class A Common Stock Indirect	6/1/2026	S · Sale	−1.14K	$84.64	$96.49K	6.7%	16.94K	15.80K
Class A Common Stock Indirect	6/1/2026	S · Sale	−800.00	$85.87	$68.70K	5.1%	15.80K	15K
Class A Common Stock Direct	6/1/2026	C · Conversion	+11K	—	—	236.4%	4.65K	15.65K
Class A Common Stock Direct	6/1/2026	S · Sale	−200.00	$79.77	$15.95K	1.3%	15.65K	15.45K
Class A Common Stock Direct	6/1/2026	S · Sale	−750.00	$82.13	$61.60K	4.9%	15.45K	14.70K
Class A Common Stock Direct	6/1/2026	S · Sale	−991.00	$82.73	$81.99K	6.7%	14.70K	13.71K
Class A Common Stock Direct	6/1/2026	S · Sale	−4K	$84.41	$337.64K	29.2%	13.71K	9.71K
Class A Common Stock Direct	6/1/2026	S · Sale	−3.36K	$85.30	$286.52K	34.6%	9.71K	6.35K
Class A Common Stock Direct	6/1/2026	S · Sale	−1.70K	$86.07	$146.32K	26.8%	6.35K	4.65K
Class A Common Stock Direct	6/3/2026	A · Award	+3.71K	—	—	79.7%	4.65K	8.36K
Total			+1.21K		-$1.14M

Derivative Transactions3

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Class B Common Stock

11K shares

−11K

Strike price

4.38

Held after

99.95K

Exercisable

—

6/1/2026

Class B Common Stock

Direct

M · Option Exercise

Converts to

Class A Common Stock

11K shares

+11K

Strike price

Held after

61K

Exercisable

—

6/1/2026

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

11K shares

−11K

Strike price

Held after

50K

Exercisable

—

6/1/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (Right to Buy) Direct	Class B Common Stock11K shares	6/1/2026	M · Option Exercise	−11K	4.38	—	99.95K
Class B Common Stock Direct	Class A Common Stock11K shares	6/1/2026	M · Option Exercise	+11K		—	61K
Class B Common Stock Direct	Class A Common Stock11K shares	6/1/2026	C · Conversion	−11K		—	50K

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

815.34K

Shares owned

815.34K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

815.34K

Owned

815.34K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Indirect	Class A Common Stock		—	—	815.34K	815.34K
Total					815.34K	815.34K