374Water Inc.
SCWO- Exchange
- Nasdaq
- Industry
- Motors & Generators
- SEC CIK
- 0000933972
No open-market purchases or sales by 374Water Inc. insiders were filed in the last 90 days; 44 institutions reported holding it in 13F filings for Q2 2026, worth $3.40M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by 374Water Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for 374Water Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Weiser Charles Maurice | Chief Financial Officer | – | Jul 8, 2026 | 1 |
| Meyers Brad Ian | Chief Operating Officer | 30,169 | Jun 15, 2026 | 2 |
| Nagar Yaacov | 10% Owner | 1,771,263 | Apr 30, 2026 | 7 |
| Russell Kline | Chief Financial Officer | 668,642 | Dec 18, 2025 | 2 |
| Jones Stephen J | Interim CEO | 1,055,723 | Dec 17, 2025 | 2 |
| Melkote Rajesh Ramaswamy | Chief Technology Officer | 882,756 | Oct 23, 2025 | 1 |
| Gannon Chris M | Chief Executive Officer | 2,370,000 | Sep 3, 2025 | 0 |
| Penn Buddie J | Director | 577,962 | Sep 2, 2025 | 0 |
| Estes Deanna Rene | Director | 853,470 | Sep 2, 2025 | 0 |
| Vanderhider James Michael | Director | 596,130 | Sep 2, 2025 | 0 |
| Mandel Peter | General Counsel | 638,575 | Sep 2, 2025 | 0 |
| Pawloski James | Director | 619,431 | Sep 2, 2025 | 0 |
| Davis Richard H | Director | 1,143,793 | Jan 2, 2025 | 0 |
| Deshusses Marc | Director, 10% Owner | 22,652,451 | Nov 19, 2024 | 0 |
| Merrell Terry | Director | 40,000 | Nov 19, 2024 | 0 |
| Anderson Adrienne | Chief Financial Officer | 71,762 | Nov 19, 2024 | 0 |
| Abitbol Israel David | Chief Financial Officer | 402,716 | Apr 20, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Oct 16, 2025 (view filing) | Oct 14-15 | 2 days | Nagar Yaacov10% Owner | SSale | −1.06M | $0.52 | −$553.2K | −3.1%33.2M after | 2 lots |
| Oct 20, 2025 (view filing)8:08 PM ET | Oct 16-17 | 4 days | Nagar Yaacov10% Owner | SSale | −217.1K | $0.4583 | −$99.5K | −0.7%33.0M after | 2 lots |
| Oct 22, 2025 (view filing)7:44 PM ET | Oct 20-22 | 2 days | Nagar Yaacov10% Owner | SSale | −330.5K | $0.4205 | −$139.0K | −1.0%32.6M after | 3 lots |
| Oct 24, 2025 (view filing)6:47 PM ET | Oct 22-23 | 2 days | Nagar Yaacov10% Owner | SSale | −534.2K | $0.4325 | −$231.1K | −1.6%32.1M after | 2 lots |
| Dec 17, 2025 (view filing)5:14 PM ET | Dec 16 | 1 day | Jones Stephen JInterim CEO | PPurchase | +450.0K | $0.2311 | +$104.0K | +74.3%1.06M after | |
| Dec 18, 2025 (view filing)5:25 PM ET | Dec 16 | 2 days | Russell KlineChief Financial Officer | PPurchase | +20.0K | $0.22 | +$4.40K | +3.1%668.6K after | |
| Jun 15, 2026 (view filing) | Jun 11-12 | 4 days | Meyers Brad IanChief Operating Officer | SSale | −18.8K | $2.39 | −$45.0K | −38.4%30.2K after | 2 lots |