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

Open‑market sale worth $745.6K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

THOMPSON JOHN WENDELL

Filed: 10/2/2025ACC: 0001207433-25-000007

InsiderTHOMPSON JOHN WENDELLCIK 1207433

→

IssuerRUBRIK, INC.CIK 1943896

Director

Since Mar 2026

-9.01K

Net shares

Net seller

$745.6K

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%

10/1/2025

998.00→10.01K

Class A Common Stock

Indirect

S · Sale

−3.55K

Price / share

$82.27

Trade value

$292.14K

% of position

35.5%

10/1/2025

10.01K→6.46K

Class A Common Stock

Indirect

S · Sale

−5.36K

Price / share

$83.07

Trade value

$445.09K

% of position

83.0%

10/1/2025

6.46K→1.10K

Class A Common Stock

Indirect

S · Sale

−100.00

Price / share

$83.77

Trade value

$8.38K

% of position

9.1%

10/1/2025

1.10K→998.00

Total

Net shares

+0.00

Net value

-$745.61K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	10/1/2025	C · Conversion	+9.01K	—	—	902.7%	998.00	10.01K
Class A Common Stock Indirect	10/1/2025	S · Sale	−3.55K	$82.27	$292.14K	35.5%	10.01K	6.46K
Class A Common Stock Indirect	10/1/2025	S · Sale	−5.36K	$83.07	$445.09K	83.0%	6.46K	1.10K
Class A Common Stock Indirect	10/1/2025	S · Sale	−100.00	$83.77	$8.38K	9.1%	1.10K	998.00
Total			+0.00		-$745.61K

Derivative Transactions1

Class B Common Stock

Indirect

C · Conversion

Converts to

Class A Common Stock

9.01K shares

−9.01K

Strike price

Held after

863.36K

Exercisable

—

10/1/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Indirect	Class A Common Stock9.01K shares	10/1/2025	C · Conversion	−9.01K		—	863.36K

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