THOMPSON JOHN WENDELL sold 78.7% of their position (13.50K shares) of RUBRIK, INC. on the open market

Open‑market sale worth $746.5K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

THOMPSON JOHN WENDELL

Filed: 2/3/2026ACC: 0001207433-26-000006

InsiderTHOMPSON JOHN WENDELLCIK 1207433

→

IssuerRUBRIK, INC.CIK 1943896

Director

Since Mar 2026

-13.50K

Net shares

Net seller

$746.5K

Total sold

Open market trades

0B · 6S

Total transactions

22K acquired · 35.50K disposed

Non-Derivative Transactions7

Class A Common Stock

Indirect

S · Sale

−1.10K

Price / share

$54.52

Trade value

$59.97K

% of position

3.9%

2/2/2026

28.50K→27.40K

Class A Common Stock

Indirect

S · Sale

−900.00

Price / share

$55.64

Trade value

$50.08K

% of position

3.3%

2/2/2026

27.40K→26.50K

Class A Common Stock

Indirect

S · Sale

−500.00

Price / share

$56.42

Trade value

$28.21K

% of position

1.9%

2/2/2026

26.50K→26K

Class A Common Stock

Direct

C · Conversion

+11K

Price / share

—

Trade value

—

% of position

301.0%

2/2/2026

3.65K→14.65K

Class A Common Stock

Direct

S · Sale

−4.50K

Price / share

$54.42

Trade value

$244.78K

% of position

30.7%

2/2/2026

14.65K→10.16K

Class A Common Stock

Direct

S · Sale

−3.90K

Price / share

$55.65

Trade value

$217.15K

% of position

38.4%

2/2/2026

10.16K→6.25K

Class A Common Stock

Direct

S · Sale

−2.60K

Price / share

$56.26

Trade value

$146.28K

% of position

41.6%

2/2/2026

6.25K→3.65K

Total

Net shares

−2.50K

Net value

-$746.46K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	2/2/2026	S · Sale	−1.10K	$54.52	$59.97K	3.9%	28.50K	27.40K
Class A Common Stock Indirect	2/2/2026	S · Sale	−900.00	$55.64	$50.08K	3.3%	27.40K	26.50K
Class A Common Stock Indirect	2/2/2026	S · Sale	−500.00	$56.42	$28.21K	1.9%	26.50K	26K
Class A Common Stock Direct	2/2/2026	C · Conversion	+11K	—	—	301.0%	3.65K	14.65K
Class A Common Stock Direct	2/2/2026	S · Sale	−4.50K	$54.42	$244.78K	30.7%	14.65K	10.16K
Class A Common Stock Direct	2/2/2026	S · Sale	−3.90K	$55.65	$217.15K	38.4%	10.16K	6.25K
Class A Common Stock Direct	2/2/2026	S · Sale	−2.60K	$56.26	$146.28K	41.6%	6.25K	3.65K
Total			−2.50K		-$746.46K

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

143.95K

Exercisable

—

2/2/2026

Class B Common Stock

Direct

M · Option Exercise

Converts to

Class A Common Stock

11K shares

+11K

Strike price

Held after

61K

Exercisable

—

2/2/2026

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

11K shares

−11K

Strike price

Held after

50K

Exercisable

—

2/2/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (Right to Buy) Direct	Class B Common Stock11K shares	2/2/2026	M · Option Exercise	−11K	4.38	—	143.95K
Class B Common Stock Direct	Class A Common Stock11K shares	2/2/2026	M · Option Exercise	+11K		—	61K
Class B Common Stock Direct	Class A Common Stock11K shares	2/2/2026	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