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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)
With an account, also○dividends▲splits◌next earningswith an account
End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Oct 14, 2026Reported sale · Form 4Alexandra Renner, Chief Product Officer · $21.2KOpen the filing ↗
- Oct 14, 2026Notice of sale · Form 144Renner Alexandra · Officer · $21.2KOpen the filing ↗
- Oct 9, 2026Reported sale · Form 4Vivek Narayanadas, General Counsel & Secretary · $12.6KOpen the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record46116 flagged findings
Reported transactions (Form 4)80since May 1, 2026 · and 16 other holdings
Corporate events (8-K)19since Jul 11, 2023
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
Oklo Inc. is a publicly traded American nuclear power company based in Santa Clara, California. The company develops a small modular nuclear reactor, the Aurora Powerhouse, and intends to sell both electricity and radioisotopes produced by their Aurora reactors. The company's name is derived from Oklo, a region in the country of Gabon, Africa, where self-sustaining nuclear fission reactions occurred approximately 1.7 billion years ago.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
Identity
Formerly traded as ALCC.
The 25 most recent filings (of 461)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Oct 14, 26Form 144 ↗Notice of proposed sale new
- Oct 13, 26Form 4 ↗Insider transaction new
- Oct 9, 26Form 144 ↗Notice of proposed sale
- Oct 6, 26Form 144 ↗Notice of proposed sale
- Oct 5, 26Form 144 ↗Notice of proposed sale
- Oct 5, 26Form 4 ↗Insider transaction
- Oct 1, 26Form 144 ↗Notice of proposed sale
Notice of proposed sale · 3 Form 144 filingsshow all 3hide
- Sep 28, 26Form 144 ↗Notice of proposed sale
- Sep 28, 26Form 144 ↗Notice of proposed sale
- Sep 28, 26Form 144 ↗Notice of proposed sale
- Sep 14, 26Form 144 ↗Notice of proposed sale
461 filings on record, the oldest from Mar 15, 21.
Listing the 25 most recent filings of the 461 on record.
1810
- Sep 11, 26Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Jul 28, 26A senior executive left or was appointed8-K 5.02 ↗
- May 13, 26A material agreement was terminated+2 more in the same filing8-K 1.02 ↗
- Apr 14, 26A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Dec 4, 25Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Apr 22, 25A senior executive left or was appointed8-K 5.02 ↗
- Mar 7, 25A senior executive left or was appointed8-K 5.02 ↗
- Feb 5, 25Listing notice (8-K 3.01)8-K 3.01 ↗
- Jan 17, 25A senior executive left or was appointed8-K 5.02 ↗
- Dec 27, 24A senior executive left or was appointed8-K 5.02 ↗
- Oct 15, 24Auditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
- May 16, 24A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
2 older filings not shown
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13D: stake and stated purpose
Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.
- Jacob DeWitte11.1%Jul 1, 26SCHEDULE 13D/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 3 earlier filings
- Samuel H. Altman4.8%Mar 6, 25SCHEDULE 13D/A ↗5 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- The Vanguard Group7.8%Sep 30, 25SCHEDULE 13G/A ↗1 earlier filing
- Zachary Bogue4.4%Dec 31, 24SCHEDULE 13G/A ↗6 co-filers on this document — the figure is the largest single stake, not their sum.
- BlackRock, Inc.3.6%Jun 30, 26SCHEDULE 13G/A ↗2 earlier filings
- M. Klein Associates, Inc.0.4%Dec 31, 24SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Oct 14, Renner Alexandra filed notice of intent to sell up to $21K.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $21K on Oct 14, per their Form 4. That is 100% of the shares announced so far, and the window is still open.
View notice (Form 144) ↗+9 more recent notices · 9 with a later sale
- Oct 14, 26Sell$21KAlexandra RennerChief Product Officer↗
- Oct 9, 26Sell$13KVivek NarayanadasGeneral Counsel & Secretary↗
- Oct 6, 26Sell$11KVivek NarayanadasGeneral Counsel & Secretary↗
- Oct 5, 26Sell$23KVivek NarayanadasGeneral Counsel & Secretary↗
- Oct 1, 26Sell$608KRichard Craig BealmearChief Financial Officer↗
- Oct 1, 26Sell$1.4MJacob DeWitteCo-Founder, CEO↗
- Oct 1, 26Sell$727KJacob DeWitteCo-Founder, CEO↗
- Oct 1, 26Sell$1.5MJacob DeWitteCo-Founder, CEO↗
- Oct 1, 26Sell$741KJacob DeWitteCo-Founder, CEO↗
- Oct 1, 26Sell$1.5MCaroline CochranCo-Founder, COO↗
- Oct 1, 26Sell$741KCaroline CochranCo-Founder, COO↗
- Oct 1, 26Sell$1.4MCaroline CochranCo-Founder, COO↗
There are 12 more transactions in this stretch.
Stock compensation, tax and giftsshow the 16 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Oct 13, 26Compensationamount n/aJohn HansonChief of Staff↗
- Oct 13, 26Compensationamount n/aAlexandra RennerChief Product Officer↗
- Oct 8, 26Compensationamount n/aVivek NarayanadasGeneral Counsel & Secretary↗
- Oct 3, 26Compensationamount n/aVivek NarayanadasGeneral Counsel & Secretary↗
- Oct 2, 26Compensation$18KRichard Craig BealmearChief Financial Officer↗
- Oct 1, 26Compensation$52KRichard Craig BealmearChief Financial Officer↗
- Sep 26, 26Compensationamount n/aWilliam Carroll Murphy GoodwinChief Strategy Officer↗
- Sep 26, 26Compensationamount n/aJohn HansonChief of Staff↗
- Sep 26, 26Compensationamount n/aAlexandra RennerChief Product Officer↗
- Sep 14, 26Giftamount n/aAlexandra RennerChief Product Officer↗
- Sep 13, 26Compensationamount n/aJohn HansonChief of Staff↗
- Sep 13, 26Compensationamount n/aAlexandra RennerChief Product Officer↗
- Sep 11, 26Compensationamount n/aVivek NarayanadasGeneral Counsel & Secretary↗
- Sep 8, 26Compensationamount n/aVivek NarayanadasGeneral Counsel & Secretary↗
- Sep 3, 26Compensationamount n/aVivek NarayanadasGeneral Counsel & Secretary↗
- Sep 2, 26Compensation$18KRichard Craig BealmearChief Financial Officer↗
The full record holds 446 transactions and goes back to Jul 12, 21.
Its sector and its market
Oklo Inc. among Utilities companies
The profile shows what is on record. Context and Radar place the company among those of its sector and region.
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- 250 clean closes in the period.
- SEC records
- 461 documents on file, from Mar 15, 2021 to Oct 15, 2026.
- Company description
- Wikipedia, read on Sep 3, 2026.
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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