# 374WATER INC COM

374WATER INC COM is a security (CUSIP 88583P203) tracked across SEC portfolio filings. 43 institutional managers reported $4.0M on Form 13F as of 2026-06-30; 2 registered fund positions totaling $306K via N-PORT as of 2026-03-31.

## Summary

- Issuer: 374WATER INC
- Class: COM
- CUSIP: 88583P203
- Asset category: EC
- 13F holders: 43
- 13F value: $4.0M
- 13F period: 2026-06-30
- N-PORT fund positions: 2
- N-PORT value: $306K
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 43 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $667K | 326,940 |
| [CAPTRUST FINANCIAL ADVISORS](https://search.stillhousedata.com/firm/175112) | RALEIGH, NC | $587K | 206,738 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $339K | 119,354 |
| HAMILTON LANE ADVISORS LLC | CONSHOHOCKEN, PA | $304K | 160,228 |
| D.A. DAVIDSON & CO. | GREAT FALLS, MT | $282K | 148,179 |
| BlackRock, Inc. | New York, NY | $225K | 79,292 |
| [Icon Wealth Advisors, LLC](https://search.stillhousedata.com/firm/319609) | HOUSTON, TX | $206K | 108,361 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $181K | 63,675 |
| OSAIC HOLDINGS, INC. | PHOENIX, AZ | $180K | 63,353 |
| [Sigma Planning Corp](https://search.stillhousedata.com/firm/110692) | Ann Arbor, MI | $149K | 52,353 |
| RAYMOND JAMES FINANCIAL INC | ST. PETERSBURG, FL | $111K | 39,023 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $105K | 37,028 |
| UBS Group AG | Zurich, V8 | $96K | 33,844 |
| NORTHERN TRUST CORP | CHICAGO, IL | $80K | 28,185 |
| STATE STREET CORP | BOSTON, MA | $66K | 23,176 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $309K | 0.04% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $-3K | -0.01% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/88583P203.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.