Latest filingSep 02, 2026Most recent Form 4
OKLO
Oklo Inc.
NYSEUtilitiesElectric Services
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$927M11 sells
Net open-market-$927M5 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period15transactions
- S · Open-market sells · dominant11 · 73%
- M · Option exercise4 · 27%
Activity by reported role
A joint filing can contribute to multiple roles26transactions
- CF · dominant10 · 38%
- Chief executive officer5 · 19%
- COO5 · 19%
- CPO2 · 8%
- CS2 · 8%
- GC1 · 4%
- SECY1 · 4%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeDeWitte JacobClass A Common Stock · Indirect · By Caroline Cochran GRAT
529,479Sep 01, 2026
Cochran CarolineClass A Common Stock · Indirect · By Caroline Cochran GRAT
529,679Sep 01, 2026
Hanson JohnRestricted Stock Units · Direct
41,327Aug 13, 2026
Hanson JohnClass A Common Stock · Direct
359,969Aug 13, 2026
Renner AlexandraRestricted Stock Units · Direct
51,659Aug 13, 2026
Renner AlexandraClass A Common Stock · Direct
473,336Aug 13, 2026
Narayanadas VivekClass A Common Stock · Direct
7,599Aug 25, 2026
DeWitte JacobClass A Common Stock · Indirect · By Caroline Cochran
398,039Sep 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- CC-$4.6M
- DJ-$4.6M
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
OKLO transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| OKLO | Cochran Caroline | CFCOO | sale10b5-1 | 20.0k | -$77.1M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | Cochran Caroline | CFCOO | sale10b5-1 | 40.0k | -$153M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | Cochran Caroline | CFCOO | sale10b5-1 | 200 | -$783k | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | Cochran Caroline | CFCOO | sale10b5-1 | 19.8k | -$76.9M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | Cochran Caroline | CFCOO | sale10b5-1 | 40.0k | -$154M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | DeWitte Jacob | CFCEO | sale10b5-1 | 200 | -$783k | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | DeWitte Jacob | CFCEO | sale10b5-1 | 19.8k | -$76.9M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | DeWitte Jacob | CFCEO | sale10b5-1 | 40.0k | -$154M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | DeWitte Jacob | CFCEO | sale10b5-1 | 20.0k | -$77.1M | S | — | 0.0% | 09/02 | 09/01 |
| OKLO | DeWitte Jacob | CFCEO | sale10b5-1 | 40.0k | -$153M | S | — | 0.0% | 09/02 | 09/01 |
Oklo Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Oklo Inc.?
Cochran Caroline, DeWitte Jacob, Narayanadas Vivek, Renner Alexandra, Hanson John.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Cochran Caroline reported a sale on Sep 01, 2026 valued at $77.1M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $9,271,606.40. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.