THOMPSON JOHN WENDELL sold 90.0% of their position (9.01K shares) of RUBRIK, INC. on the open market

Open‑market sale worth $619.3K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

THOMPSON JOHN WENDELL

Filed: 12/2/2025ACC: 0001207433-25-000011

InsiderTHOMPSON JOHN WENDELLCIK 1207433

→

IssuerRUBRIK, INC.CIK 1943896

Director

Since Mar 2026

-9.01K

Net shares

Net seller

$619.3K

Total sold

Open market trades

0B · 3S

Total transactions

9.01K acquired · 18.02K disposed

Non-Derivative Transactions4

Class A Common Stock

Indirect

C · Conversion

+9.01K

Price / share

—

Trade value

—

% of position

902.7%

12/1/2025

998.00→10.01K

Class A Common Stock

Indirect

S · Sale

−4.22K

Price / share

$68.40

Trade value

$288.85K

% of position

42.2%

12/1/2025

10.01K→5.78K

Class A Common Stock

Indirect

S · Sale

−4.59K

Price / share

$69.02

Trade value

$316.53K

% of position

79.3%

12/1/2025

5.78K→1.20K

Class A Common Stock

Indirect

S · Sale

−200.00

Price / share

$69.83

Trade value

$13.97K

% of position

16.7%

12/1/2025

1.20K→998.00

Total

Net shares

+0.00

Net value

-$619.34K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	12/1/2025	C · Conversion	+9.01K	—	—	902.7%	998.00	10.01K
Class A Common Stock Indirect	12/1/2025	S · Sale	−4.22K	$68.40	$288.85K	42.2%	10.01K	5.78K
Class A Common Stock Indirect	12/1/2025	S · Sale	−4.59K	$69.02	$316.53K	79.3%	5.78K	1.20K
Class A Common Stock Indirect	12/1/2025	S · Sale	−200.00	$69.83	$13.97K	16.7%	1.20K	998.00
Total			+0.00		-$619.34K

Derivative Transactions1

Class B Common Stock

Indirect

C · Conversion

Converts to

Class A Common Stock

9.01K shares

−9.01K

Strike price

Held after

845.34K

Exercisable

—

12/1/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Indirect	Class A Common Stock9.01K shares	12/1/2025	C · Conversion	−9.01K		—	845.34K

Non-Derivative Holdings (Post-Transaction)1

Class A Common Stock

Direct

Shares owned2.70K

Total

2.70K direct2.70K

Security Title	Shares Owned	Ownership Type
Class A Common Stock	2.70K	Direct
Total	2.70K	2.70K direct

Derivative Holdings (Post-Transaction)1

Class B Common Stock

Direct

Underlying security

Class A Common Stock

Underlying shares

25K

Shares owned

25K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

25K

Owned

25K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Direct	Class A Common Stock		—	—	25K	25K
Total					25K	25K