Oklo (OKLO) co-founder Caroline Cochran sells 200,000 shares under 10b5-1 plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Oklo Inc. director and Co-Founder/COO Caroline Cochran reported open-market sales of Oklo Class A common stock totaling 200,000 shares. The transactions were executed on June 1, 2026 through a combination of direct holdings and indirect entities, including GRATs and her spouse’s holdings.
The sales occurred at weighted average prices ranging from about $64.99 to $70.45 per share, according to individual line items and related footnotes. A footnote states that these sales were effected under a Rule 10b5-1 trading plan adopted on March 31, 2025, indicating they were pre-arranged rather than discretionary trades.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 200,000 shares ($13,657,880)
Net Sell
14 txns
Insider
Cochran Caroline
Role
Co-Founder, COO
Sold
200,000 shs ($13.66M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock | 12,600 | $64.99 | $819K |
| Sale | Class A Common Stock | 7,400 | $66.14 | $489K |
| Sale | Class A Common Stock | 14,814 | $67.15 | $995K |
| Sale | Class A Common Stock | 25,186 | $67.75 | $1.71M |
| Sale | Class A Common Stock | 40,000 | $69.10 | $2.76M |
| Sale | Class A Common Stock | 60,000 | $68.29 | $4.10M |
| Sale | Class A Common Stock | 38,200 | $69.64 | $2.66M |
| Sale | Class A Common Stock | 1,800 | $70.45 | $127K |
| holding | Class A Common Stock | -- | -- | -- |
| holding | Class A Common Stock | -- | -- | -- |
| holding | Class A Common Stock | -- | -- | -- |
| holding | Class A Common Stock | -- | -- | -- |
| holding | Class A Common Stock | -- | -- | -- |
| holding | Class A Common Stock | -- | -- | -- |
Holdings After Transaction:
Class A Common Stock — 585,439 shares (Direct, null);
Class A Common Stock — 609,479 shares (Indirect, By Caroline Cochran GRAT)
Footnotes (1)
- The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.57- $65.46 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.60- $66.60 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.62- $67.62 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.63- $67.94 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.74- $69.35 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.94- $68.74 inclusive. The Reporting Person's spouse undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission. Represents securities held by the Reporting Person's spouse. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.35- $70.35 inclusive. The Reporting Person's spouse undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein. Represents securities beneficially owned by the Reporting Person's spouse. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.38- $70.56 inclusive. The Reporting Person's spouse undertakes to provide to the Issuer, any security holder of the Issuer 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 set forth herein.
Key Figures
Net shares sold: 200,000 shares
Sale price: $70.45 per share
Sale price: $69.64 per share
+3 more
6 metrics
Net shares sold
200,000 shares
Net open-market sales on June 1, 2026
Sale price
$70.45 per share
One reported sale of 1,800 shares
Sale price
$69.64 per share
One reported sale of 38,200 shares
Sale price
$69.10 per share
One reported sale of 40,000 shares
Sale price
$67.75 per share
One reported direct sale of 25,186 shares
Direct holdings after trades
585,439 shares
Direct Class A shares following one reported transaction
Key Terms
Rule 10b5-1 plan, weighted average price, grantor retained annuity trust, definitive proxy statement, +1 more
5 terms
Rule 10b5-1 plan regulatory
"The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025."
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
grantor retained annuity trust financial
"nature_of_ownership: By Jacob DeWitte GRAT No.3"
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.
definitive proxy statement regulatory
"please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission."
A Definitive Proxy Statement is a detailed document that a company sends to its shareholders before a big meeting, like voting on important decisions. It explains what's being voted on and gives important information so shareholders can make informed choices. It matters because it helps shareholders understand and participate in key company decisions.
beneficially owned financial
"Represents securities beneficially owned by the Reporting Person's spouse."
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
FAQ
What did Oklo (OKLO) insider Caroline Cochran report in this Form 4?
Caroline Cochran reported multiple open-market sales of Oklo Class A common stock totaling 200,000 shares on June 1, 2026. The transactions involved both her direct holdings and indirect holdings through GRATs and her spouse.
Were the Oklo (OKLO) insider sales made under a Rule 10b5-1 plan?
Yes. A footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025. Such plans pre-schedule trades, meaning the timing was arranged in advance rather than decided on the trade date.
What does the Form 4 say about Caroline Cochran’s role at Oklo (OKLO)?
The Form 4 identifies Caroline Cochran as a director, Co-Founder, COO and a ten percent owner of Oklo Inc. This highlights that the reported transactions involve a senior executive and significant shareholder in the company.
How are GRAT and spouse holdings reflected in this Oklo (OKLO) filing?
Several transactions and holding entries are labeled as held by GRATs or by the reporting person’s spouse. The filing treats these as indirect ownership positions associated with Caroline Cochran, separate from her directly held shares.