# OKLO INC COM CL A

OKLO INC COM CL A is a security (CUSIP 02156V109) tracked across SEC portfolio filings. 716 institutional managers reported $6.2B on Form 13F as of 2026-06-30; 28 registered fund positions totaling $129.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: OKLO INC
- Class: COM CL A
- CUSIP: 02156V109
- Asset category: EC
- 13F holders: 716
- 13F value: $6.2B
- 13F period: 2026-06-30
- N-PORT fund positions: 28
- N-PORT value: $129.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 716 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $835.1M | 11,637,504 |
| BlackRock, Inc. | New York, NY | $788.9M | 15,907,512 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $461.6M | 533,000 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $444.7M | 665,979 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | CENTRAL, K3 | $439.2M | 8,856,496 |
| WOLVERINE TRADING, LLC | CHICAGO, IL | $280.1M | — |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $270.1M | 249,676 |
| Defiance ETFs, LLC | NEW YORK, NY | $180.7M | 3,643,044 |
| [Walleye Trading LLC](https://search.stillhousedata.com/firm/136196) | NEW YORK, NY | $172.6M | 24,213 |
| STATE STREET CORP | BOSTON, MA | $164.9M | 3,326,142 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $151.2M | 3,054,149 |
| MORGAN STANLEY | NEW YORK, NY | $133.0M | 2,681,738 |
| [Alyeska Investment Group, L.P.](https://search.stillhousedata.com/firm/155058) | CHICAGO, IL | $84.8M | 1,709,692 |
| UBS Group AG | Zurich, V8 | $72.8M | 1,206,299 |
| [Cubist Systematic Strategies, LLC](https://search.stillhousedata.com/firm/292081) | Stamford, CT | $59.7M | — |

## Top fund holders (N-PORT)

_Showing 15 of 28 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $68.4M | 8.39% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $41.9M | 23.93% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $9.8M | 20.40% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $3.7M | 0.63% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $3.2M | 1.05% |
| [SPIRIT OF AMERICA ENERGY FUND](https://search.stillhousedata.com/fund/S000046009) | Spirit of America Investment Fund, Inc. | $1.8M | 116.52% |
| CAZ Strategic Opportunities Fund | CAZ Strategic Opportunities Fund | $1.7M | 26.22% |
| [VOYA SMALL COMPANY PORTFOLIO](https://search.stillhousedata.com/fund/S000008709) | Voya VARIABLE PORTFOLIOS INC | $1.3M | 69.50% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.2M | 12.45% |
| [Firsthand Technology Opportunities Fund](https://search.stillhousedata.com/fund/S000011681) | Firsthand Funds | $992K | 240.24% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $848K | 20.22% |
| [T. Rowe Price Small-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002121) | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $741K | 0.80% |
| [Schwab 1000 Index ETF](https://search.stillhousedata.com/fund/S000059091) | SCHWAB STRATEGIC TRUST | $663K | 1.17% |
| Nuveen Nasdaq 100 Dynamic Overwrite Fund | Nuveen NASDAQ 100 Dynamic Overwrite Fund | $583K | 4.17% |
| [PGIM Jennison Blend Fund](https://search.stillhousedata.com/fund/S000004514) | Prudential Jennison Blend Fund, Inc. | $515K | 4.40% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/02156v109.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.