Security key
02156V109
Oklo Inc. - Class A Common Stock, par value $0.0001 per share (OKLO)
CUSIP: 02156V109
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / Class A Common Stock, par value $0.0001 per share
- Shares outstanding
- 173,435,172
- Total 13F shares
- 64,821,474
- Share change
- +10,315,967
- Total reported value
- $7,231,826,607
- Put/Call ratio
- 88%
- Reported price per share
- $111.63
- Number of holders
- 633
- Value change
- +$1,392,276,072
- Number of buys
- 428
- Number of sells
- 213
Security identity
Holder snapshot
Report period
Q3 2025
Institutions
633
Top holders
10
OKLO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Previous quarter: Q2 2025
Oklo Inc. SEC filings
Oklo Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 02156V109
Recent filing periods:
Ownership snapshot
Top reported holders of OKLO - Oklo Inc. - Class A Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
VANGUARD GROUP INC
13D/G signal
VANGUARD GROUP INC
Evidence rows
15
Latest as of
30 Sep 2025
13D/G
13F
3/4/5
Lead comparable stake: 7.8%
13D/G row: VANGUARD GROUP INC
Showing 1-6 of 15 holder rows.
Rank 1 holder
VANGUARD GROUP INC
13D/G
13F
- Ownership
- 7.8%
- Position
- $1.29B
Rank 2 holder
Samuel H. Altman
13D/G
3/4/5
- Ownership
- 4.8%
- Position
- $162.54M
Rank 3 holder
Data Collective IV, L.P.
13D/G
- Ownership
- 4.4%
- Position
- $131.54M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13D/G
13F
The Vanguard Group · Company
|
7.8%
|
$1,294,178,833
11,593,468 shares
|
+$323,940,102 | 30 Sep 2025 |
| Samuel H. Altman |
13D/G
3/4/5
Director
|
4.8%
|
$162,535,825
6,650,402 shares
|
-$81,084,026 | 06 Mar 2025 |
| Data Collective IV, L.P. |
13D/G
Matthew Ocko
|
4.4%
|
$131,541,335
5,382,215 shares
|
$0 | 31 Dec 2024 |
| Michael Stuart Klein |
3/4/5
Director, 10%+ Owner
|
0.09%
|
$20,280,000
150,000 shares
|
-$25,194,840 | 22 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
4.2%
|
$409,702,345
7,317,420 shares
|
— | 30 Jun 2025 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
Company
|
2.4%
|
$231,420,835
4,133,253 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
633
Shares
64,821,474
Rows available
633
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
471
Q3 2025 holders
633
Holder diff
162
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend