Oklo (OKLO) co-founder Caroline Cochran sells 200,000 shares, keeps large stake
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Oklo Inc. director and Co-Founder/COO Caroline Cochran reported net open-market sales of 200,000 shares of Class A Common Stock on April 1, 2026. The trades were executed in multiple transactions at weighted average prices ranging from about $47.99 to $51.79 per share under a Rule 10b5-1 trading plan adopted on March 31, 2025.
After these sales, Cochran directly holds 658,039 Class A shares. Additional shares are held indirectly through vehicles such as the Caroline Cochran GRAT, which holds 689,479 shares, and family-related trusts and GRATs associated with Cochran and her spouse, including 7,583,085 shares held by the Caroline DeWitte Family Trust.
Positive
- None.
Negative
- None.
Insights
Planned insider sale of 200,000 Oklo shares, sizeable but partial.
Caroline Cochran, Oklo’s Co-Founder, COO, director and 10% owner, reported open-market sales totaling 200,000 Class A shares on April 1, 2026. Transactions were coded as sales and executed at weighted average prices between roughly $47.99 and $51.79 per share.
A key detail is that these dispositions were made under a pre-arranged Rule 10b5-1 plan adopted on March 31, 2025, which typically indicates a scheduled, rather than opportunistic, trading program. Following the sales, Cochran still holds 658,039 shares directly, plus large indirect positions through GRATs and family trusts.
From an investment perspective, this looks like a structured liquidity event by a founder-level insider who retains substantial exposure. The lack of derivative exercises or option grants in this filing, and the continued large indirect holdings, point to routine portfolio management rather than a fundamental shift in commitment.
Insider Trade Summary
Net Seller: 200,000 shares ($10,069,852)
Net Sell
16 txns
Insider
Cochran Caroline
Role
Co-Founder, COO
Sold
200,000 shs ($10.07M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock | 13,473 | $48.41 | $652K |
| Sale | Class A Common Stock | 10,516 | $49.58 | $521K |
| Sale | Class A Common Stock | 9,068 | $50.93 | $462K |
| Sale | Class A Common Stock | 26,943 | $51.20 | $1.38M |
| Sale | Class A Common Stock | 40,000 | $50.50 | $2.02M |
| Sale | Class A Common Stock | 13,473 | $48.41 | $652K |
| Sale | Class A Common Stock | 10,516 | $49.58 | $521K |
| Sale | Class A Common Stock | 9,068 | $50.93 | $462K |
| Sale | Class A Common Stock | 26,943 | $51.20 | $1.38M |
| Sale | Class A Common Stock | 40,000 | $50.50 | $2.02M |
| 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 — 704,566 shares (Direct);
Class A Common Stock — 689,479 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 $47.99- $48.98 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 $49.00- $50.00 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 $50.54- $51.01 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 $51.02- $51.79 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 $50.01- $50.86 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 $47.99- $48.98 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 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 $49.00- $50.00 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.54- $51.01 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.02- $51.79 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.01- $50.86 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.
Key Figures
Shares sold: 200,000 shares
Sample sale price: $48.41 per share
Highest reported sale price: $51.20 per share
+5 more
8 metrics
Shares sold
200,000 shares
Net open-market sales on April 1, 2026
Sample sale price
$48.41 per share
One reported weighted average sale price for Class A stock
Highest reported sale price
$51.20 per share
Weighted average price for one transaction group
Direct holdings after sale
658,039 shares
Class A Common Stock held directly by Cochran after trades
Caroline Cochran GRAT holdings
689,479 shares
Class A shares held indirectly by Caroline Cochran GRAT
Caroline DeWitte Family Trust holdings
7,583,085 shares
Indirect Class A holdings via family trust
Jacob DeWitte Family Trust holdings
7,851,901 shares
Indirect Class A holdings via spouse’s family trust
Rule 10b5-1 plan adoption date
March 31, 2025
Plan governing April 1, 2026 share sales
Key Terms
Rule 10b5-1 plan, weighted average price, GRAT, beneficially owned, +1 more
5 terms
Rule 10b5-1 plan regulatory
"The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted"
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.
GRAT financial
"nature_of_ownership": "By Caroline Cochran GRAT""
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.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
FAQ
Do family trusts and GRATs appear in this Oklo (OKLO) Form 4 filing?
Yes. The filing lists indirect holdings through entities such as the Caroline Cochran GRAT, the Caroline DeWitte Family Trust, the Jacob DeWitte Family Trust, and several GRATs. These entities collectively hold millions of Oklo shares associated with Cochran and her spouse.
Does this Oklo (OKLO) Form 4 include any stock option exercises or derivative transactions?
No. The transaction summary shows no derivative exercises or derivative transactions. All reported trades are non-derivative Class A Common Stock sales, with zero exercise count and zero exercise shares recorded in the filing’s transaction summary.