According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at 374Water are TenPercentOwner Yaacov Nagar (3.21Mn shares), Director Marc Deshusses (2.27Mn shares), Director Terry Merrell (609.06K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Yaacov Nagar | 3,211,263 | 24 Oct, 2025 | |
| Marc Deshusses | 2,265,245 | 19 Nov, 2024 | |
| Terry Merrell | 609,058 | 19 Nov, 2024 | |
| James Michael Vanderhider | 201,613 | 02 Sep, 2025 | |
| Richard H Davis | 130,433 | 02 Jan, 2025 | |
| Stephen J Jones | Interim Ceo | 105,572 | 16 Dec, 2025 |
| Rajesh Ramaswamy Melkote | Chief Technology Officer | 88,276 | 02 Sep, 2025 |
| Deanna Rene Estes | 85,347 | 02 Sep, 2025 | |
| Kline Russell | Chief Financial Officer | 66,864 | 18 Dec, 2025 |
| Peter Mandel | General Counsel | 63,858 | 02 Sep, 2025 |
| James Pawloski | 61,943 | 02 Sep, 2025 | |
| Buddie J Penn | 57,796 | 02 Sep, 2025 | |
| Brad Ian Meyers | Chief Operating Officer | 49,000 | 28 Aug, 2025 |
| Israel David Abitbol | Chief Financial Officer | 40,272 | 20 Apr, 2023 |
| Chris M Gannon | President & Ceo | 12,000 | 20 Nov, 2024 |
| Adrienne Anderson | Chief Financial Officer | 7,176 | 19 Nov, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Dec, 2025 | Stephen J Jones | Common Stock | A | 450,000 | $0.23 | 105,572 | D | P |
| 16 Dec, 2025 | Kline Russell | Common Stock | A | 20,000 | $0.22 | 66,864 | D | P |
| 23 Oct, 2025 | Yaacov Nagar | Common Stock | D | 473,211 | $0.43 | 3,211,263 | D | S |
| 22 Oct, 2025 | Yaacov Nagar | Common Stock | D | 61,000 | $0.42 | 3,258,584 | D | S |
| 22 Oct, 2025 | Yaacov Nagar | Common Stock | D | 32,791 | $0.42 | 3,264,684 | D | S |
| 21 Oct, 2025 | Yaacov Nagar | Common Stock | D | 284,394 | $0.42 | 3,267,963 | D | S |
| 20 Oct, 2025 | Yaacov Nagar | Common Stock | D | 13,330 | $0.42 | 3,296,403 | D | S |
| 17 Oct, 2025 | Yaacov Nagar | Common Stock | D | 131,680 | $0.42 | 3,297,736 | D | S |
| 16 Oct, 2025 | Yaacov Nagar | Common Stock | D | 85,419 | $0.51 | 3,310,904 | D | S |
| 15 Oct, 2025 | Yaacov Nagar | Common Stock | D | 363,868 | $0.52 | 3,319,446 | D | S |
| 14 Oct, 2025 | Yaacov Nagar | Common Stock | D | 700,000 | $0.52 | 3,355,833 | D | S |
| 08 Oct, 2025 | Yaacov Nagar | Common Stock | D | 1,499,000 | $0.46 | 3,425,833 | D | S |
| 07 Oct, 2025 | Yaacov Nagar | Common Stock | D | 1,000 | $0.39 | 3,575,733 | D | S |
| 08 Sep, 2025 | Yaacov Nagar | Common Stock | D | 54,850 | $0.40 | 3,575,833 | D | S |
| 05 Sep, 2025 | Yaacov Nagar | Common Stock | D | 122,439 | $0.39 | 3,581,318 | D | S |
| 29 Aug, 2025 | Yaacov Nagar | Common Stock | D | 22,711 | $0.39 | 3,593,561 | D | S |
| 28 Aug, 2025 | Stephen J Jones | Common Stock (restricted stock units) | A | 426,130 | $0.00 | 60,572 | D | A |
| 28 Aug, 2025 | Buddie J Penn | Common Stock (restricted stock units) | A | 130,000 | $0.00 | 19,000 | D | A |
| 28 Aug, 2025 | Buddie J Penn | - | - | 57,796 | D | |||
| 28 Aug, 2025 | Buddie J Penn | Common Stock (restricted stock units) | A | 387,962 | $0.00 | 57,796 | D | A |