SCWO (374Water Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by SCWO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-08 | Charles Maurice Weiser | Chief Financial Officer | A | — | — |
| 2026-06-15 | Brad Ian Meyers | Chief Operating Officer | Sell | — | — |
| 2025-12-18 | Kline Russell | Chief Financial Officer | Buy | — | — |
| 2025-12-17 | Stephen J Jones | Interim CEO | Buy | — | — |
| 2025-10-24 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-23 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | — | — |
| 2025-10-22 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-20 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-16 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-14 | Kline Russell | Chief Financial Officer | A | — | — |
| 2025-10-14 | Brad Ian Meyers | Chief Operating Officer | A | — | — |
| 2025-10-10 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-09 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-10-09 | Stephen J Jones | Interim CEO | A | — | — |
| 2025-09-08 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-09-08 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-09-03 | Stephen J Jones | Director | A | — | — |
| 2025-09-03 | Chris M Gannon | Chief Executive Officer | A | — | — |
| 2025-09-03 | Brad Ian Meyers | Chief Operating Officer | A | — | — |
| 2025-09-03 | Brad Ian Meyers | Chief Operating Officer | A | — | — |
| 2025-09-02 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | — | — |
| 2025-09-02 | Kline Russell | Chief Financial Officer | A | — | — |
| 2025-09-02 | James Michael Vanderhider | Director | A | — | — |
| 2025-09-02 | Peter Mandel | General Counsel | A | — | — |
| 2025-09-02 | Buddie J Penn | Director | A | — | — |
| 2025-09-02 | James Pawloski | Director | A | — | — |
| 2025-09-02 | Deanna Rene Estes | Director | A | — | — |
| 2025-08-27 | Deanna Rene Estes | Director | Buy | — | — |
| 2025-08-26 | James Pawloski | Director | Buy | — | — |
| 2025-08-25 | Kline Russell | Chief Financial Officer | Buy | — | — |
| 2025-08-21 | Kline Russell | Chief Financial Officer | Buy | — | — |
| 2025-08-20 | Peter Mandel | General Counsel | Buy | — | — |
| 2025-06-30 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-06-25 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-06-25 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-06-18 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-06-16 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-06-05 | Stephen J Jones | Director | Buy | — | — |
| 2025-06-03 | Stephen J Jones | Director | Buy | — | — |
| 2025-05-27 | Stephen J Jones | Director | Buy | — | — |
| 2025-05-22 | Stephen J Jones | Director | Buy | — | — |
| 2025-05-02 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | — | — |
| 2025-03-28 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-02-11 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-02-07 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-02-05 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-01-27 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-01-23 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-01-21 | Yaacov Nagar | 10%+ Owner | Sell | — | — |
| 2025-01-17 | Kline Russell | Chief Financial Officer | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 3,211,263 | — |
| — | Director | 2,265,245 | — |
| — | Director | 609,058 | — |
| — | Director | 159,000 | — |
| — | Director | 115,379 | — |
| — | Chief Executive Officer | 112,000 | — |
| — | Interim CEO | 105,572 | — |
| — | Chief Technology Officer | 88,276 | — |
| — | Chief Financial Officer | 66,864 | — |
| — | General Counsel | 63,858 | — |
| — | Director | 61,943 | — |
| — | Chief Financial Officer | 40,272 | — |
| — | Chief Operating Officer | 30,169 | — |
| — | Director | 23,650 | — |
| — | Director | 19,000 | — |
| — | Chief Financial Officer | 6,284 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SCWO quote page; the site-wide leaderboard is on the insider transactions hub.