SCWO · Insider Trading
374Water Inc. Common Stock
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-08 | Charles Maurice Weiser | Chief Financial Officer | A | +275,000 deriv. | — |
| 2026-06-15 | Brad Ian Meyers | Chief Operating Officer | Sell | −18,831 | −$45.05K |
| 2025-12-18 | Kline Russell | Chief Financial Officer | Buy | +20,000 | +$4.40K |
| 2025-12-17 | Stephen J Jones | Interim CEO | Buy | +450,000 | +$104.00K |
| 2025-10-24 | Yaacov Nagar | 10%+ Owner | Sell | −534,211 | −$231.05K |
| 2025-10-23 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | +500,000 deriv. | — |
| 2025-10-22 | Yaacov Nagar | 10%+ Owner | Sell | −330,515 | −$138.97K |
| 2025-10-20 | Yaacov Nagar | 10%+ Owner | Sell | −217,099 | −$99.49K |
| 2025-10-16 | Yaacov Nagar | 10%+ Owner | Sell | −1,063,868 | −$549.86K |
| 2025-10-14 | Kline Russell | Chief Financial Officer | A | +500,000 deriv. | — |
| 2025-10-14 | Brad Ian Meyers | Chief Operating Officer | A | +500,000 deriv. | — |
| 2025-10-10 | Yaacov Nagar | 10%+ Owner | Sell | −1,499,000 | −$695.69K |
| 2025-10-09 | Yaacov Nagar | 10%+ Owner | Sell | −1,000 | −$390 |
| 2025-10-09 | Stephen J Jones | Interim CEO | A | +4,500,000 deriv. | — |
| 2025-09-08 | Yaacov Nagar | 10%+ Owner | Sell | −22,711 | −$8.86K |
| 2025-09-08 | Yaacov Nagar | 10%+ Owner | Sell | −177,289 | −$70.00K |
| 2025-09-03 | Stephen J Jones | Director | A | +426,130 | — |
| 2025-09-03 | Chris M Gannon | Chief Executive Officer | A | +2,250,000 | — |
| 2025-09-03 | Brad Ian Meyers | Chief Operating Officer | A | +115,500 | — |
| 2025-09-03 | Brad Ian Meyers | Chief Operating Officer | A | +375,000 | — |
| 2025-09-02 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | +125,000 | — |
| 2025-09-02 | Kline Russell | Chief Financial Officer | A | +250,000 | — |
| 2025-09-02 | James Michael Vanderhider | Director | A | +556,130 | — |
| 2025-09-02 | Peter Mandel | General Counsel | A | +375,000 | — |
| 2025-09-02 | Buddie J Penn | Director | A | +517,962 | — |
| 2025-09-02 | James Pawloski | Director | A | +426,131 | — |
| 2025-09-02 | Deanna Rene Estes | Director | A | +746,970 | — |
| 2025-08-27 | Deanna Rene Estes | Director | Buy | +30,000 | +$8.71K |
| 2025-08-26 | James Pawloski | Director | Buy | +193,300 | +$50.82K |
| 2025-08-25 | Kline Russell | Chief Financial Officer | Buy | +30,000 | +$7.44K |
| 2025-08-21 | Kline Russell | Chief Financial Officer | Buy | +20,000 | +$4.78K |
| 2025-08-20 | Peter Mandel | General Counsel | Buy | +5,000 | +$1.25K |
| 2025-06-30 | Yaacov Nagar | 10%+ Owner | Sell | −126,775 | −$53.32K |
| 2025-06-25 | Yaacov Nagar | 10%+ Owner | Sell | −51,598 | −$20.74K |
| 2025-06-25 | Yaacov Nagar | 10%+ Owner | Sell | −96,137 | −$40.63K |
| 2025-06-18 | Yaacov Nagar | 10%+ Owner | Sell | −63,702 | −$25.60K |
| 2025-06-16 | Yaacov Nagar | 10%+ Owner | Sell | −42,350 | −$16.94K |
| 2025-06-05 | Stephen J Jones | Director | Buy | +40,000 | +$19.00K |
| 2025-06-03 | Stephen J Jones | Director | Buy | +50,000 | +$21.12K |
| 2025-05-27 | Stephen J Jones | Director | Buy | +40,000 | +$12.60K |
| 2025-05-22 | Stephen J Jones | Director | Buy | +49,593 | +$14.88K |
| 2025-05-02 | Rajesh Ramaswamy Melkote | Chief Technology Officer | A | +757,756 | — |
| 2025-03-28 | Yaacov Nagar | 10%+ Owner | Sell | −107,223 | −$44.73K |
| 2025-02-11 | Yaacov Nagar | 10%+ Owner | Sell | −12,436 | −$5.22K |
| 2025-02-07 | Yaacov Nagar | 10%+ Owner | Sell | −144,860 | −$62.99K |
| 2025-02-05 | Yaacov Nagar | 10%+ Owner | Sell | −228,039 | −$111.99K |
| 2025-01-27 | Yaacov Nagar | 10%+ Owner | Sell | −31,925 | −$19.05K |
| 2025-01-23 | Yaacov Nagar | 10%+ Owner | Sell | −56,162 | −$33.34K |
| 2025-01-21 | Yaacov Nagar | 10%+ Owner | Sell | −115,298 | −$69.65K |
| 2025-01-17 | Kline Russell | Chief Financial Officer | A | +308,642 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Yaacov Nagar | 10%+ Owner | 3,211,263 | $7.80M |
| Marc Deshusses | Director | 2,265,245 | $5.50M |
| Terry Merrell | Director | 609,058 | $1.48M |
| James Michael Vanderhider | Director | 159,000 | $386.37K |
| Richard H Davis | Director | 115,379 | $280.37K |
| Chris M Gannon | Chief Executive Officer | 112,000 | $272.16K |
| Stephen J Jones | Interim CEO | 105,572 | $256.54K |
| Rajesh Ramaswamy Melkote | Chief Technology Officer | 88,276 | $214.51K |
| Kline Russell | Chief Financial Officer | 66,864 | $162.48K |
| Peter Mandel | General Counsel | 63,858 | $155.17K |
| James Pawloski | Director | 61,943 | $150.52K |
| Brad Ian Meyers | Chief Operating Officer | 30,169 | $73.31K |
| Deanna Rene Estes | Director | 23,650 | $57.47K |
| Buddie J Penn | Director | 19,000 | $46.17K |
| Adrienne Anderson | Chief Financial Officer | 6,284 | $15.27K |
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.
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.