---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-087034"
form_type: "8-K"
ticker: "OKLO"
cik: "0001849056"
company_name: "Oklo Inc."
filed_at: "2025-09-03T23:59:59+00:00"
generated_at: "2026-05-17T08:39:01.344572+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Oklo increases ATM capacity to $540M from $400M with new prospectus supplement

## Summary
- Oklo files prospectus supplement to sell up to $540M of common stock; previously issued 5,458,953 shares for $400M gross proceeds.
- Remaining capacity under new supplement is approximately $140M, sold via sales agreement with Goldman Sachs, BofA, B. Riley, TD Securities.
- Prior prospectus supplement from June 10, 2025, is effectively replaced; no further offers will be made under it.
- Shares registered under Form S-3 registration statement (File No. 333-287715) declared effective June 12, 2025.

## SEC filing metadata
- accession: 0001104659-25-087034
- form_type: 8-K
- ticker: OKLO
- cik: 0001849056
- company_name: Oklo Inc.
- filed_at: 2025-09-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1849056/000110465925087034/0001104659-25-087034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1849056/000110465925087034/tm2524815d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-087034
- JSON: https://secwatch.observer/filing/0001104659-25-087034.json
- Plain text: https://secwatch.observer/filing/0001104659-25-087034.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.