John M. Jansen

Sits on 1 board. Last updated September 28, 2026

Time on boards

3 years of board service in total across 1 board, counting each seat separately. Longest: Oklo Inc., 2 years.

Oklo Inc. Director

2 years · Since 2024

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date	Company	Transaction	Shares	Price	Value
Sep 14, 2026	Oklo Inc.	Open-market sale	−6,354	$36.67	$233,001
Mar 27, 2026	Oklo Inc.	Open-market sale	−10,500	$51.52	$540,960
Mar 6, 2026	Oklo Inc.	Option exercise	+16,854	$58.25	$981,746
Mar 27, 2025	Oklo Inc.	Open-market purchase	+6,000	$24.57	$147,420

John M. Jansen sits on the board of Oklo Inc.

Our records show at least 3 years of board service across 1 board, the earliest from 2024.

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