Welcome to our dedicated page for Oklo SEC filings (Ticker: OKLO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Oklo Inc. (OKLO) SEC filings document the regulatory record of an advanced nuclear technology company developing fast fission power plants, nuclear fuel recycling and critical isotope supply. For Oklo, quarterly reports and amended quarterly reports are useful for reviewing operating updates, capital-structure disclosure, risk factors and the company’s description of its nuclear development activities.
Oklo’s Form 8-K filings are especially relevant because the company’s business can be affected by material agreements, financing arrangements, officer and director changes, shareholder voting results and other reported events. Recent 8-K categories include material definitive agreements, governance matters and annual meeting results. These filings help investors separate company-disclosed events from general market commentary about advanced nuclear power.
Annual reports, quarterly reports and proxy statements can also show how Oklo explains its business model, emerging growth company status, governance structure, executive compensation framework and stockholder voting matters. The company’s proxy materials and meeting-result filings provide details on board elections, auditor ratification and other shareholder matters.
For OKLO stock research, the most relevant filing types include Form 10-K for annual business and risk disclosure, Form 10-Q for quarterly updates, Form 8-K for material events, and DEF 14A proxy statements for governance and compensation information. These documents are central to understanding Oklo’s public-company obligations as it works on Aurora powerhouse commercialization, fuel recycling and isotope-related projects.
Oklo Inc. filed Amendment No. 1 to a shelf registration statement to offer up to $3,500,000,000 of securities, including common stock, preferred stock, debt securities, warrants, rights, and units. The company may sell these from time to time in one or more offerings, with specific terms, amounts, and prices to be detailed in accompanying prospectus supplements.
Sales may occur through underwriters, dealers, agents, directly to purchasers, or via methods deemed an “at the market offering” under Rule 415(a)(4), after effectiveness. Oklo qualifies as an emerging growth company and notes that investing in its securities involves risks described in the prospectus and incorporated reports. Oklo’s Class A common stock trades on the NYSE under “OKLO,” and the closing price was $111.17 on November 12, 2025.
Oklo Inc. reported third-quarter 2025 results marked by higher spending to advance its advanced fission projects and strong liquidity after capital raises. Net loss was $29.7 million for Q3, driven by operating expenses of $36.3 million (research and development $14.9 million; general and administrative $21.4 million). Interest and dividend income contributed $7.1 million in the quarter.
Liquidity strengthened materially: as of September 30, 2025, cash, cash equivalents, and marketable debt securities totaled $1.18 billion. The company completed an underwritten public offering for net proceeds of $440.1 million and sold shares via its at-the-market program for net proceeds of $526.1 million during the period. Oklo acquired Atomic Alchemy for total consideration of $28.4 million, recording $27.5 million of indefinite‑lived IPR&D and $6.7 million of goodwill. A $25.0 million right‑of‑first‑refusal liability reflects an LOI tied to future power sales capacity. Class A common shares outstanding were 156,247,075 as of November 7, 2025.
The Vanguard Group filed an amended Schedule 13G reporting passive beneficial ownership of Oklo Inc. common stock. Vanguard reports 11,593,468 shares beneficially owned, representing 7.85% of the class as of the stated event date.
The filing details 0 shares with sole voting power and 739,468 shares with shared voting power. It also lists 10,730,641 shares with sole dispositive power and 862,827 shares with shared dispositive power. Vanguard certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.
Oklo Inc. filed a universal shelf registration on Form S-3 to offer and sell up to $3,500,000,000 of securities, including common stock, preferred stock, debt securities, warrants, rights, and units, from time to time. Each sale will be detailed in a prospectus supplement with specific amounts, prices, and terms.
The company may sell through underwriters, dealers, agents, directly to purchasers, or via an “at the market offering” under Rule 415(a)(4). Use of proceeds will be described in the applicable supplement. Oklo is an emerging growth company and its common stock trades on the NYSE under OKLO. The closing price of the common stock was $132.28 on October 28, 2025.
Oklo Inc. (OKLO): Beneficial ownership update. BlackRock, Inc. filed a Schedule 13G reporting beneficial ownership of 8,076,075 Class A shares, representing 5.5% of the class as of 09/30/2025.
BlackRock reports sole voting power over 7,839,797 shares and sole dispositive power over 8,076,075 shares, with no shared voting or dispositive power. The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.
Oklo Inc. (OKLO) filed a Form 144 reporting a proposed sale of 300,000 Class A common shares through J.P. Morgan Securities LLC. The filing shows the shares were founder shares originally acquired from the issuer on 12/31/2013. The filing reports an aggregate market value of $34,953,000, lists 147,609,194 shares outstanding, and states an approximate sale date of 09/30/2025 on the NYSE. The filer reports no securities sold in the past three months and includes the standard attestation that the selling person is not aware of undisclosed material adverse information.
Oklo Inc. (OKLO) filed a Form 144 disclosing a proposed sale of 300,000 Class A shares through J.P. Morgan Securities LLC on the NYSE with an aggregate market value of $34,953,000. The shares were acquired as founder shares from the issuer on 12/31/2013 and the filing lists the approximate sale date as 09/30/2025. The filing reports 147,609,194 Class A shares outstanding, making the proposed sale about 0.20% of outstanding shares. The filer reports no securities sold in the past three months and includes the standard Rule 144 attestations and signature warning statements.
Michael Stuart Klein, a director and reported 10% owner of Oklo Inc. (OKLO), reported sales of common stock on 09/22/2025. The Form 4 shows a sale of 40,000 shares at a weighted-average price of $133.3978 (shares sold in multiple transactions at prices ranging $133.255 to $133.57) leaving 160,000 shares beneficially owned, and a separate sale of 10,000 shares at $135.20 leaving 150,000 shares beneficially owned. The shares are held of record by M. Klein Associates, Inc., of which Mr. Klein is the controlling stockholder. The filing includes a signed authorization dated 09/24/2025 from M. Klein Associates, Inc.
Caroline Cochran, co-founder, COO, director and reported 10% owner of Oklo Inc. (OKLO), reported a Form 4 disclosing a gift transaction dated 09/22/2025. The filing shows a Code G transaction for 25,000 shares of Class A common stock transferred as a gift to a donor-advised fund by the reporting person’s spouse. Post-transaction beneficial ownership figures are reported in the filing and identify securities held indirectly by Jacob DeWitte and interests held in GRATs; the filing is signed by an attorney-in-fact on 09/24/2025.
DeWitte Jacob, Co-Founder, CEO and Director of Oklo Inc. (OKLO), reported a gift transaction on 09/22/2025 disposing of 25,000 shares of Class A Common Stock via a donor advised fund at a reported price of $121.8445 per share. After the transaction, the filing shows 10,080,098 shares owned directly by the reporting person and several indirect holdings: 9,802,108 shares held by spouse Caroline Cochran, 2,000,000 held indirectly by a Jacob DeWitte GRAT and 2,000,000 by a Caroline Cochran GRAT. The Form 4 is signed by an attorney-in-fact on behalf of the reporting person on 09/24/2025. The filing identifies the transfer as a G (gift) transaction.