Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SCWO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 323K | $917K | — | 2.230% | 0.00% |
| 2 | CAPTRUST FINANCIAL ADVISORS | 207K | $587K | +150.0% | 1.429% | 0.00% |
| 3 | HAMILTON LANE ADVISORS LLC | 160K | $455K | 0.0% | 1.107% | 0.33% |
| 4 | D.A. DAVIDSON & CO. | 135K | $385K | +24.0% | 0.936% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 119K | $339K | +16.1% | 0.825% | 0.00% |
| 6 | Icon Wealth Advisors, LLC | 108K | $261K | 0.0% | 0.749% | 0.02% |
| 7 | BlackRock, Inc. | 79K | $225K | 0.0% | 0.548% | 0.00% |
| 8 | MILLENNIUM MANAGEMENT LLC | 64K | $181K | -28.2% | 0.440% | 0.00% |
| 9 | ADVISOR GROUP HOLDINGS, INC. | 63K | $180K | 0.0% | 0.438% | 0.00% |
| 10 | Sigma Planning Corp | 52K | $149K | +15.4% | 0.362% | 0.00% |
| 11 | VANGUARD FIDUCIARY TRUST CO | 48K | $138K | — | 0.335% | 0.00% |
| 12 | RAYMOND JAMES FINANCIAL INC | 39K | $111K | 0.0% | 0.270% | 0.00% |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 37K | $105K | — | 0.256% | 0.00% |
| 14 | UBS Group AG | 34K | $96K | +147.8% | 0.234% | 0.00% |
| 15 | NORTHERN TRUST CORP | 28K | $80K | 0.0% | 0.195% | 0.00% |
| 16 | Trinity Legacy Partners, LLC | 23K | $76K | -0.0% | 0.160% | 0.02% |
| 17 | STATE STREET CORP | 23K | $66K | 0.0% | 0.160% | 0.00% |
| 18 | Uncommon Cents Investing LLC | 18K | $52K | 0.0% | 0.126% | 0.01% |
| 19 | Mariner, LLC | 18K | $51K | 0.0% | 0.125% | 0.00% |
| 20 | Prospera Financial Services Inc | 18K | $50K | — | 0.121% | 0.00% |
| 21 | QUADRANT CAPITAL GROUP LLC | 210 | $49K | 0.0% | 0.002% | 0.04% |
| 22 | PATRON PARTNERS, LLC | 15K | $43K | +7.1% | 0.104% | 0.02% |
| 23 | TWO SIGMA INVESTMENTS, LP | 14K | $39K | 0.0% | 0.094% | 0.00% |
| 24 | Westend Capital Management, LLC | 13K | $37K | — | 0.090% | 0.01% |
| 25 | TFO-TDC, LLC | 12K | $34K | 0.0% | 0.082% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in SCWO — a direct measure of their conviction.
Filings activity in SCWO during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 46 | +4.5% | 14.49% | +5.44 pp | $5M | +60% |
| Q4 2025 | 44 | 29% | 9.05% | 3.04 pp | $3M | 25% |
| Q3 2025 | 62 | 18% | 12.09% | 3.03 pp | $4M | 20% |
| Q2 2025 | 76 | 3.8% | 15.12% | 3.93 pp | $5M | 21% |
| Q1 2025 | 79 | +3.9% | 19.05% | 20.54 pp | $6M | 52% |
| Q4 2024 | 76 | 1.3% | 39.59% | 44.41 pp | $13M | 53% |
| Q3 2024 | 77 | +13% | 84.00% | +22.47 pp | $28M | +37% |
| Q2 2024 | 68 | — | 61.53% | — | $21M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SCWO stock.
Based on Q1 2026 13F filings, institutional ownership of 374Water, Inc. stands at 14.5%, held across 46 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of SCWO, with approximately 322,788 shares worth $0.00B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of SCWO, including MILLENNIUM MANAGEMENT LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for SCWO is 73 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
9 institutions opened new positions in SCWO during Q1 2026, while 7 fully exited. 34 added to existing positions and 3 trimmed.
SCWO institutional ownership rose by 5.44 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 76.0% of all reported 13F value in SCWO, and the top 25 account for 97.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
374Water, Inc. (SCWO) Institutional Ownership