Michael Stuart Klein - May 9, 2024 Form 4 Insider Report for AltC Acquisition Corp. (OKLO)

Role: Director, 10%+ Owner
Signature: See Exhibit 99.1 for signatures
Stock symbol: OKLO
Transactions as of: May 9, 2024
Transactions value $: $0
Form type: 4
Date filed: 5/13/2024, 04:39 PM
Previous filing: May 8, 2024
Next filing: Jul 22, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OKLO	Class A Common Stock, par value $0.0001 per share	Options Exercise		+12.5M	+870.78%		13.9M	May 9, 2024	See Footnotes	F1, F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OKLO	Class B Common Stock, par value $0.0001 per share	Options Exercise		-12.5M	-100%		0	May 9, 2024	Class A Common Stock, par value $0.0001 per share	12.5M		See Footnotes	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This Form 4 is filed by the following Reporting Persons: Michael Stuart Klein, M. Klein Associates, Inc., and AltC Sponsor LLC (the "Sponsor"). Because of the relationships among the Reporting Persons, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests.
F2	Upon the consummation of AltC Acquisition Corp.'s business combination with Oklo Inc. on May 9, 2024 (the "Business Combination"), each issued and outstanding share of Class B common stock of the Issuer (formerly, AltC Acquisition Corp.) automatically converted into one share of Class A common stock, par value $0.0001 per share, of the Issuer pursuant to the Issuer's certificate of incorporation in effect prior to the Business Combination.
F3	The reported shares of the Issuer are directly held by the Sponsor. Michael Klein is the controlling stockholder of M. Klein Associates, Inc., which is the managing member of the Sponsor. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, or otherwise, any of the Reporting Persons is the beneficial owner of any securities reported herein. The Reporting Persons disclaim beneficial ownership of any securities of the Issuer except to the extent of such Reporting Person's pecuniary interest therein.

Remarks:

Exhibit 99.1 (Joint filer information) is incorporated by reference here.