374Water Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Russell Kline | Chief Financial Officer | Purchase | 20,000 | $0.22 | $4,400 | 668,642 | Dec 16, 2025 |
| Jones Stephen J | Interim CEO | Purchase | 450,000 | $0.23 | $103,500 | 1,055,723 | Dec 16, 2025 |
| Nagar Yaacov | — | Sale | 473,211 | $0.43 | $203,481 | 32,112,632 | Oct 22, 2025 |
| Nagar Yaacov | — | Sale | 284,394 | $0.42 | $119,445 | 32,679,634 | Oct 22, 2025 |
| Nagar Yaacov | — | Sale | 85,419 | $0.51 | $43,564 | 33,109,038 | Oct 17, 2025 |
| Nagar Yaacov | — | Sale | 363,868 | $0.52 | $189,211 | 33,194,457 | Oct 14, 2025 |
| Nagar Yaacov | — | Sale | 1,499,000 | $0.46 | $689,540 | 34,258,325 | Oct 8, 2025 |
| Nagar Yaacov | — | Sale | 1,000 | $0.39 | $390 | 35,757,325 | Oct 7, 2025 |
| Nagar Yaacov | — | Sale | 122,439 | $0.39 | $47,751 | 35,813,175 | Sep 8, 2025 |
| Nagar Yaacov | — | Sale | 22,711 | $0.39 | $8,857 | 35,935,614 | Aug 29, 2025 |
| Jones Stephen J | — | Award / Grant | 426,130 | — | — | 605,723 | Aug 28, 2025 |
| Gannon Chris M | Chief Executive Officer | Award / Grant | 1,000,000 | — | — | 1,120,000 | Aug 28, 2025 |
| Meyers Brad Ian | Chief Operating Officer | Award / Grant | 375,000 | — | — | 490,000 | Aug 28, 2025 |
| Mandel Peter | General Counsel | Award / Grant | 375,000 | — | — | 638,575 | Aug 28, 2025 |
| Russell Kline | Chief Financial Officer | Award / Grant | 250,000 | — | — | 648,642 | Aug 28, 2025 |
| Melkote Rajesh Ramaswamy | Chief Technology Officer | Award / Grant | 125,000 | — | — | 882,756 | Aug 28, 2025 |
| Estes Deanna Rene | — | Award / Grant | 130,000 | — | — | 236,500 | Aug 28, 2025 |
| Vanderhider James Michael | — | Award / Grant | 426,130 | — | — | 596,130 | Aug 28, 2025 |
| Pawloski James | — | Award / Grant | 426,131 | — | — | 619,431 | Aug 28, 2025 |
| Penn Buddie J | — | Award / Grant | 387,962 | — | — | 577,962 | Aug 28, 2025 |
| Estes Deanna Rene | — | Purchase | 30,000 | $0.29 | $8,700 | 106,500 | Aug 26, 2025 |
| Pawloski James | — | Purchase | 193,300 | $0.26 | $50,258 | 193,300 | Aug 25, 2025 |
| Russell Kline | Chief Financial Officer | Purchase | 15,000 | $0.25 | $3,750 | 398,642 | Aug 21, 2025 |
| Russell Kline | Chief Financial Officer | Purchase | 20,000 | $0.24 | $4,800 | 368,642 | Aug 20, 2025 |
| Mandel Peter | General Counsel | Purchase | 4,980 | $0.25 | $1,245 | 263,575 | Aug 18, 2025 |
| Nagar Yaacov | — | Sale | 23,396 | $0.42 | $9,826 | 35,958,325 | Jun 26, 2025 |
| Nagar Yaacov | — | Sale | 59,946 | $0.42 | $25,177 | 36,085,100 | Jun 23, 2025 |
| Nagar Yaacov | — | Sale | 51,598 | $0.40 | $20,639 | 36,181,237 | Jun 18, 2025 |
| Nagar Yaacov | — | Sale | 6,052 | $0.40 | $2,421 | 36,232,835 | Jun 18, 2025 |
| Nagar Yaacov | — | Sale | 42,350 | $0.40 | $16,940 | 36,238,887 | Jun 12, 2025 |
| Jones Stephen J | — | Purchase | 40,000 | $0.48 | $19,200 | 179,593 | Jun 3, 2025 |
| Jones Stephen J | — | Purchase | 50,000 | $0.42 | $21,000 | 139,593 | May 30, 2025 |
| Jones Stephen J | — | Purchase | 40,000 | $0.32 | $12,800 | 89,593 | May 22, 2025 |
| Jones Stephen J | — | Purchase | 49,593 | $0.30 | $14,878 | 49,593 | May 20, 2025 |
| Meyers Brad Ian | Chief Operating Officer | Award / Grant | 115,500 | — | — | 115,500 | May 16, 2025 |
| Melkote Rajesh Ramaswamy | Chief Technology Officer | Award / Grant | 757,756 | — | — | 757,756 | Apr 30, 2025 |
| Nagar Yaacov | — | Sale | 61,225 | $0.41 | $25,102 | 36,281,237 | Mar 26, 2025 |
| Nagar Yaacov | — | Sale | 12,436 | $0.42 | $5,223 | 36,388,460 | Feb 7, 2025 |
| Nagar Yaacov | — | Sale | 144,860 | $0.43 | $62,290 | 36,400,896 | Feb 5, 2025 |
| Nagar Yaacov | — | Sale | 15,919 | $0.45 | $7,164 | 36,545,756 | Feb 3, 2025 |
| Nagar Yaacov | — | Sale | 31,025 | $0.60 | $18,615 | 36,774,695 | Jan 24, 2025 |
| Nagar Yaacov | — | Sale | 36,390 | $0.60 | $21,834 | 36,825,492 | Jan 22, 2025 |
| Nagar Yaacov | — | Sale | 114,998 | $0.60 | $68,999 | 36,861,882 | Jan 16, 2025 |
| Russell Kline | Chief Financial Officer | Award / Grant | 308,642 | — | — | 348,642 | Jan 15, 2025 |
| Nagar Yaacov | — | Sale | 61,268 | $0.63 | $38,599 | 36,989,484 | Jan 15, 2025 |
| Nagar Yaacov | — | Sale | 69,570 | $0.68 | $47,308 | 37,050,752 | Jan 10, 2025 |
| DAVIS RICHARD H | — | Tax Withholding | 179,105 | $0.67 | $120,000 | 1,143,793 | Dec 30, 2024 |
| DAVIS RICHARD H | — | Award / Grant | 40,000 | — | — | 322,898 | Nov 18, 2024 |
| Gannon Chris M | President & CEO | Purchase | 120,000 | $1.25 | $150,000 | 120,000 | Nov 18, 2024 |
| Deshusses Marc | — | Purchase | 32,000 | $1.25 | $40,000 | 22,652,451 | Nov 18, 2024 |