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

Open‑market sale worth $679.7K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

THOMPSON JOHN WENDELL

Filed: 11/4/2025ACC: 0001207433-25-000009

InsiderTHOMPSON JOHN WENDELLCIK 1207433

→

IssuerRUBRIK, INC.CIK 1943896

Director

Since Mar 2026

-9.01K

Net shares

Net seller

$679.7K

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%

11/3/2025

998.00→10.01K

Class A Common Stock

Indirect

S · Sale

−1.11K

Price / share

$74.43

Trade value

$82.32K

% of position

11.1%

11/3/2025

10.01K→8.90K

Class A Common Stock

Indirect

S · Sale

−7.40K

Price / share

$75.55

Trade value

$559.30K

% of position

83.2%

11/3/2025

8.90K→1.50K

Class A Common Stock

Indirect

S · Sale

−500.00

Price / share

$76.21

Trade value

$38.10K

% of position

33.4%

11/3/2025

1.50K→998.00

Total

Net shares

+0.00

Net value

-$679.72K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	11/3/2025	C · Conversion	+9.01K	—	—	902.7%	998.00	10.01K
Class A Common Stock Indirect	11/3/2025	S · Sale	−1.11K	$74.43	$82.32K	11.1%	10.01K	8.90K
Class A Common Stock Indirect	11/3/2025	S · Sale	−7.40K	$75.55	$559.30K	83.2%	8.90K	1.50K
Class A Common Stock Indirect	11/3/2025	S · Sale	−500.00	$76.21	$38.10K	33.4%	1.50K	998.00
Total			+0.00		-$679.72K

Derivative Transactions1

Class B Common Stock

Indirect

C · Conversion

Converts to

Class A Common Stock

9.01K shares

−9.01K

Strike price

Held after

854.35K

Exercisable

—

11/3/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Indirect	Class A Common Stock9.01K shares	11/3/2025	C · Conversion	−9.01K		—	854.35K

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