Total buying$00 buys
OKLO
Oklo Inc.
NYSEUtilitiesElectric Services
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
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 selling$9.58M16 sells
Net open-market−$9.58MBuying minus selling
Active insiders7Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 15, 2026
Open-market transaction mix · 16 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 3 | 0 | $0 | $148k | -$148k |
| Oct 2026 | 0 | 13 | 0 | $0 | $9.43M | -$9.43M |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (6)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- CC-$4.4M
- DJ-$4.4M
- HJ—
- RA—
- NV—
OKLO transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period34transactionstxns
- M · Option exercise · dominant18 · 53%
- S · Open-market sells16 · 47%
Activity by reported role
A joint filing can contribute to multiple rolesCF8
GC7
SECY7
CPO6
Chief financial officer5
CS5
Chief executive officer4
COO4
CSO3
Reported Holdings After
Separated by insider, security, and ownership type
Narayanadas VivekClass A Common Stock · Direct
8,769Oct 09, 2026
Renner AlexandraClass A Common Stock · Direct
478,428Oct 14, 2026
Hanson JohnClass A Common Stock · Direct
362,311Oct 13, 2026
Bealmear Richard CraigClass A Common Stock · Direct
467,261Oct 02, 2026
Goodwin William Carroll MurphyClass A Common Stock · Direct
46,787Sep 28, 2026
Renner AlexandraRestricted Stock Units · Direct
125,650Oct 13, 2026
Hanson JohnRestricted Stock Units · Direct
52,101Oct 13, 2026
Bealmear Richard CraigStock Options · Direct
591,923Oct 02, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
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Oklo Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Oklo Inc.?
Hanson John, Renner Alexandra, Narayanadas Vivek, Cochran Caroline, DeWitte Jacob, Bealmear Richard Craig, Goodwin William Carroll Murphy.
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?
Renner Alexandra reported a sale on Oct 14, 2026 valued at $21.1k. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $9,586,773.49. 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.