374Water Inc. (SCWO) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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