Security key
02156V109
- Security type / class
- Equity / Class A Stock
- Total 13F shares
- 4,661
- Total 13F value
- $174,815
- Share change
- -179
- SEC-reported price per share
- $37.02
- Number of holders
- 8
- Value change
- -$6,294
- Number of buys
- 2
- Number of sells
- 2
- Shares outstanding
- 172,932,917
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
8
Top holders
8
OKLO full security history
Ownership snapshot
Full 13F holder table
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 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
Jacob DeWitte
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
01 Jul 2026
13D/G
3/4/5
13F
Lead comparable stake: 11%
13D/G row: Jacob DeWitte
Showing 1-6 of 15 holder rows.
Quick read
Jacob DeWitte leads the comparable SEC ownership view at 11%.
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 Jacob DeWitte's linked filing trail.
Comparable ownership
Top 5
Jacob DeWitte
11%
VANGUARD GROUP INC
7.8%
Samuel H. Altman
4.8%
Data Collective IV, L.P.
4.4%
BlackRock, Inc.
3.6%
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 |
|---|---|---|---|---|---|
| Jacob DeWitte |
13D/G
|
11%
|
$1,075,892,182
20,559,091 shares
|
-$31,399,020 | 01 Jul 2026 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
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 |
| BlackRock, Inc. |
13F
13D/G
Company
|
3.6%
from 13D/G
|
$382,635,288
7,311,968 shares
|
— | 30 Jun 2026 |
| Michael Stuart Klein |
3/4/5
Director, 10%+ Owner
|
0.09%
|
$20,280,000
150,000 shares
|
— | 22 Sep 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 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
8
Shares
4,661
Rows available
8
| 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 Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
670
Q3 2026 holders
8
Holder diff
-662
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend