Security key
02156V109
- Security type / class
- Equity / Class A Stock
- Total 13F shares
- 54,037,247
- Total 13F value
- $3,025,526,482
- Share change
- +19,406,677
- Put/Call ratio
- 113%
- SEC-reported price per share
- $55.99
- Number of holders
- 471
- Value change
- +$1,210,811,554
- Number of buys
- 362
- Number of sells
- 111
- Shares outstanding
- 172,932,917
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
471
Top holders
10
OKLO full security history
Ownership snapshot
Full 13F holder table
Oklo Inc. SEC filings
Oklo Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of OKLO - Oklo Inc. - Class A Stock (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.
Comparable stake leader
Samuel H. Altman
Disclosed value leader
Samuel H. Altman
Comparable rows
15/15
Latest evidence
31 Mar 2025
13D/G
3/4/5
13F
Lead comparable stake: 4.8%
13D/G row: Samuel H. Altman
Showing 1-6 of 15 holder rows.
Quick read
Samuel H. Altman leads the comparable SEC ownership view at 4.8%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Samuel H. Altman's linked filing trail.
Comparable ownership
Top 5
Samuel H. Altman
4.8%
Data Collective IV, L.P.
4.4%
MIRAE ASSET GLOBAL ETFS HOLDINGS ...
2.7%
VANGUARD GROUP INC
2.5%
VAN ECK ASSOCIATES CORP
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| 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 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
Company
|
2.7%
|
$101,593,536
4,696,881 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
2.5%
|
$94,769,617
4,381,397 shares
|
— | 31 Mar 2025 |
| VAN ECK ASSOCIATES CORP |
13F
Company
|
1.6%
|
$59,865,000
2,767,694 shares
|
— | 31 Mar 2025 |
| MORGAN STANLEY |
13F
Company
|
1.1%
|
$42,473,058
1,963,618 shares
|
— | 31 Mar 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 Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
471
Shares
54,037,247
Rows available
471
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-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 did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
284
Q2 2025 holders
471
Holder diff
187
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|