Form 4 for OKLO Oklo Inc.

Accepted 2025-06-25 00:00:00 ET · period of report 2025-06-23 · accession 0001104659-25-062672 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
MI	2025-06-25	2025-06-23	OKLO	Klein Michael Stuart	Dir	S - Sale	$54.85	-50.0K	225.0K	-18%	-$2.74M

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock, par value $0.0001 per share	2025-06-23	S	D	12,900	$55.22	200,000	I See footnote	—	—	(F3) The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.
2	Common	Common Stock, par value $0.0001 per share	2025-06-23	S	D	12,100	$53.71	212,900	I See footnote	—	—	(F2) The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.
3	Common	Common Stock, par value $0.0001 per share	2025-06-23	S	D	25,000	$55.22	225,000	I See footnote	—	—	(F1) 212,900 of the shares reported (the "Shares") are held of record by M. Klein Associates, Inc. and 12,100 of the Shares are held of record by Allies Capital Corp. Michael Klein is the controlling stockholder of M. Klein Associates, Inc. Michael Klein is the sole stockholder of Allies Capital Corp. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.2165 to $55.2248, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.