Oklo Inc: 10% owner Jacob DeWitte sold 120,000 shares

What happened Jacob DeWitte, a 10% owner, sold a total of 120,000 Oklo Inc shares in four open-market transactions on Oct 1, 2026. The Form 4 lists the transactions as:

• 40,000 shares at $36.19 for $1,447,600
• 20,000 shares at $36.34 for $726,800
• 40,000 shares at $36.64 for $1,465,600
• 20,000 shares at $37.07 for $741,400 Total reported proceeds: $4,381,400.

Key details

• Transaction date: Oct 1, 2026. Form 4 filed Oct 5, 2026.
• Reported per-share prices: $36.19, $36.34, $36.64, $37.07 (see weighted-average ranges below).
• Weighted-average price ranges reported by footnote: first lot 36.05–36.28; second lot 36.28–36.39; third lot 36.39–36.87; fourth lot 36.87–37.50. The reporting person (or spouse where noted) offers to provide a breakdown of sales by exact price on request.
• The filing states the sales were effected pursuant to a Rule 10b5-1 plan adopted Mar 31, 2025 (footnote F1).
• Footnotes indicate some securities and beneficial ownership information relate to the reporting person’s spouse (footnotes F5–F9); for details on post-transaction ownership see the issuer’s most recent definitive proxy statement (footnotes F3 and F6).
• Shares owned after the transactions: not reported on this Form 4; see the issuer’s most recent definitive proxy statement.

Why it may matter

• The filing identifies the seller as a 10% owner (a large holder, not an executive).
• The sales were made under a Rule 10b5-1 plan, per the filing.
• This filing does not show why the insider traded or why the company acted.