11 insiders reported 67 Form 4 transactions for 374Water Inc. (SCWO) over the past 18 months (most recent 2026-04-30). Recent activity: Nagar Yaacov (Insider) Sell 1.4M shares, Russell Kline (Chief Financial Officer) Buy 20,000 shares, Jones Stephen J (Interim CEO) Buy 450,000 shares, Nagar Yaacov (Insider) Sell 61,000 shares, Nagar Yaacov (Insider) Sell 473,211 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-30 | Nagar Yaacov | Insider | Sell | 1.4M | $3.6M |
| 2025-12-18 | Russell Kline | Chief Financial Officer | Buy | 20,000 | $0 |
| 2025-12-17 | Jones Stephen J | Interim CEO | Buy | 450,000 | $0 |
| 2025-10-24 | Nagar Yaacov | Insider | Sell | 61,000 | $0 |
| 2025-10-24 | Nagar Yaacov | Insider | Sell | 473,211 | $0 |
| 2025-10-22 | Nagar Yaacov | Insider | Sell | 13,330 | $0 |
| 2025-10-22 | Nagar Yaacov | Insider | Sell | 284,394 | $0 |
| 2025-10-22 | Nagar Yaacov | Insider | Sell | 32,791 | $0 |
| 2025-10-20 | Nagar Yaacov | Insider | Sell | 85,419 | $0 |
| 2025-10-20 | Nagar Yaacov | Insider | Sell | 131,680 | $0 |
| 2025-10-16 | Nagar Yaacov | Insider | Sell | 700,000 | $0 |
| 2025-10-16 | Nagar Yaacov | Insider | Sell | 363,868 | $0 |
| 2025-10-10 | Nagar Yaacov | Insider | Sell | 1.5M | $0 |
| 2025-10-09 | Nagar Yaacov | Insider | Sell | 1,000 | $0 |
| 2025-09-08 | Nagar Yaacov | Insider | Sell | 22,711 | $0 |
| 2025-09-08 | Nagar Yaacov | Insider | Sell | 122,439 | $0 |
| 2025-09-08 | Nagar Yaacov | Insider | Sell | 54,850 | $0 |
| 2025-09-03 | Meyers Brad Ian | Chief Operating Officer | Buy | 375,000 | $0 |
| 2025-09-03 | Gannon Chris M | Chief Executive Officer | Buy | 1.0M | $0 |
| 2025-09-03 | Gannon Chris M | Chief Executive Officer | Buy | 1.2M | $0 |
| 2025-09-03 | Meyers Brad Ian | Chief Operating Officer | Buy | 115,500 | $0 |
| 2025-09-03 | Jones Stephen J | Director | Buy | 426,130 | $0 |
| 2025-09-02 | Penn Buddie J | Director | Buy | 130,000 | $0 |
| 2025-09-02 | Penn Buddie J | Director | Buy | 387,962 | $0 |
| 2025-09-02 | Russell Kline | Chief Financial Officer | Buy | 250,000 | $0 |
Source: SEC Form 4 filings · as of 2026-04-30