Quick Takeaways
- SCWO - 374Water Inc. has 21 insiders with reported activity on this page.
- Net insider value flow over the last year: -$1,702,543.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 21 Insiders of 374Water Inc.
- Symbol
- SCWO on Nasdaq
- Location
- Durham, NC
What Changed
- Buy value: $248,983; sell value: $1,951,525.
- Net share flow: -3,298,362.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$1,702,543.
Buys
$248,983
Shares: 927,893
Insiders: 5
Sells
$1,951,526
Shares: 4,226,255
Insiders: 1
Net
-$1,702,543
Shares: -3,298,362
Insiders: 4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 470,000 | 0 | $108,395 | $0 | +$108,395 |
| 6-9 | 278,300 | 3,845,693 | $72,991 | $1,794,297 | -$1,721,307 |
| 9-12 | 179,593 | 380,562 | $67,598 | $157,229 | -$89,631 |
374Water Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Marc Deshusses | Director, 10%+ Owner | $28,315,564 | Filing P/S | 18 Nov 2024 | ||
| Terry Merrell | Director | $7,613,230 | Mixed | 15 Nov 2024 | ||
| Yaacov Nagar | 10%+ Owner | $5,030,386 | -$1,951,526 | -28% | Median | 30 Apr 2026 |
| Richard H. Davis | Director | $880,598 | Mixed | 30 Dec 2024 | ||
| Israel D. Abitbol | Chief Financial Officer | $676,563 | Mixed | 18 Apr 2023 | ||
| Stephen H. McKnight | Director | $612,800 | Mixed | 09 Feb 2026 | ||
| James Michael Vanderhider | Director | $355,000 | Mixed | 28 Aug 2025 | ||
| Stephen J. Jones | Interim CEO, Director | $243,977 | +$171,593 | +237% | Filing P/S | 16 Dec 2025 |
| Bogar Daniel T. | President / CEO | $217,355 | Mixed | 23 Feb 2026 | ||
| Yizhaq Polad | Director | $168,000 | Mixed | 13 Jun 2022 | ||
| Chris M. Gannon | President & CEO, Director | $150,000 | Filing P/S | 18 Nov 2024 | ||
| Russell Kline | Chief Financial Officer | $147,101 | +$16,617 | +13% | Filing P/S | 16 Dec 2025 |
| Brad Ian Meyers | Chief Operating Officer | $122,500 | Mixed | 09 Oct 2025 | ||
| Adrienne Anderson | Chief Financial Officer | $91,047 | Mixed | 15 Nov 2024 | ||
| Buddie J. Penn | Director | $75,000 | Filing P/S | 28 Aug 2025 | ||
| Peter Mandel | General Counsel | $65,841 | +$1,249 | +1.9% | Filing P/S | 28 Aug 2025 |
| James Pawloski | Director | $50,818 | +$50,819 | +100% | Filing P/S | 28 Aug 2025 |
| Deanna Rene Estes | Director | $30,906 | +$8,706 | +39% | Filing P/S | 28 Aug 2025 |
| Charles Maurice Weiser | Director | $5,298 | Mixed | 29 Dec 2025 | ||
| Rajesh Ramaswamy Melkote | Chief Technology Officer | Mixed | 09 Oct 2025 | |||
| Jeffrey Mark Quick | Interim CEO | Mixed | 01 Sep 2023 |
Top shareholders of 374Water Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Marc Deshusses |
3/4/5
|
Director, 10%+ Owner |
—
mixed-class rows
|
22,700,451
mixed-class rows
|
$28,315,564 | — | 18 Nov 2024 | |
| Terry Merrell |
3/4/5
|
Director |
—
class O/S missing
|
6,090,584
|
$7,613,230 | — | 15 Nov 2024 | |
| Yaacov Nagar |
3/4/5
13D/G
|
10%+ Owner |
10%
from 13D/G
|
1,771,263
|
$5,030,386 | -$1,951,526 | 30 Apr 2026 | |
| Stephen H. McKnight |
13D/G
3/4/5
|
Bryce Allan Johnson · Director |
2.4%
|
410,086
|
$1,254,863 | $0 | 22 Jan 2026 | |
| Richard H. Davis |
3/4/5
|
Director |
—
mixed-class rows
|
4,397,224
mixed-class rows
|
$880,598 | — | 30 Dec 2024 | |
| Israel D. Abitbol |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
552,716
mixed-class rows
|
$676,563 | — | 18 Apr 2023 | |
| VANGUARD GROUP INC |
13F
|
Company |
1.9%
|
326,940
|
$666,957 | — | 31 Dec 2025 | |
| James Michael Vanderhider |
3/4/5
|
Director |
—
mixed-class rows
|
2,391,130
mixed-class rows
|
$355,000 | — | 28 Aug 2025 | |
| HAMILTON LANE ADVISORS LLC |
13F
|
Company |
0.94%
|
160,228
|
$326,865 | — | 31 Dec 2025 | |
| Stephen J. Jones |
3/4/5
|
Interim CEO, Director |
—
mixed-class rows
|
6,161,446
mixed-class rows
|
$243,977 | +$171,593 | 16 Dec 2025 | |
| D.A. DAVIDSON & CO. |
13F
|
Company |
0.64%
|
109,294
|
$222,960 | — | 31 Dec 2025 | |
| Icon Wealth Advisors, LLC |
13F
|
Company |
0.63%
|
108,361
|
$221,056 | — | 31 Dec 2025 | |
| Bogar Daniel T. |
3/4/5
|
President / CEO |
0.46%
|
79,327
|
$217,355 | — | 23 Feb 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.6%
|
102,844
|
$209,876 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.52%
|
88,658
|
$180,862 | — | 31 Dec 2025 | |
| CAPTRUST FINANCIAL ADVISORS |
13F
|
Company |
0.48%
|
82,687
|
$168,681 | — | 31 Dec 2025 | |
| Yizhaq Polad |
3/4/5
|
Director |
—
class O/S missing
|
100,000
|
$168,000 | — | 13 Jun 2022 | |
| BlackRock, Inc. |
13F
|
Company |
0.46%
|
79,295
|
$161,763 | — | 31 Dec 2025 | |
| Chris M. Gannon |
3/4/5
|
President & CEO, Director |
—
mixed-class rows
|
3,920,000
mixed-class rows
|
$150,000 | — | 18 Nov 2024 | |
| Russell Kline |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
2,474,568
mixed-class rows
|
$147,101 | +$16,617 | 16 Dec 2025 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
0.37%
|
63,353
|
$129,239 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.36%
|
61,929
|
$126,335 | — | 31 Dec 2025 | |
| Brad Ian Meyers |
3/4/5
|
Chief Operating Officer |
—
mixed-class rows
|
1,452,000
mixed-class rows
|
$122,500 | — | 09 Oct 2025 | |
| Sigma Planning Corp |
13F
|
Company |
0.27%
|
45,353
|
$92,520 | — | 31 Dec 2025 | |
| Adrienne Anderson |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
149,599
mixed-class rows
|
$91,047 | — | 15 Nov 2024 | |
| SENTINEL TRUST CO LBA |
13F
|
Company |
0.23%
|
40,130
|
$82,000 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.23%
|
39,023
|
$79,607 | — | 31 Dec 2025 | |
| Buddie J. Penn |
3/4/5
|
Director |
—
mixed-class rows
|
667,962
mixed-class rows
|
$75,000 | — | 28 Aug 2025 | |
| Peter Mandel |
3/4/5
|
General Counsel |
—
mixed-class rows
|
1,413,900
mixed-class rows
|
$65,841 | +$1,249 | 28 Aug 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.16%
|
28,185
|
$57,497 | — | 31 Dec 2025 | |
| James Pawloski |
3/4/5
|
Director |
—
mixed-class rows
|
812,731
mixed-class rows
|
$50,818 | +$50,819 | 28 Aug 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.14%
|
23,176
|
$47,279 | — | 31 Dec 2025 | |
| Trinity Legacy Partners, LLC |
13F
|
Company |
0.14%
|
23,168
|
$47,263 | — | 31 Dec 2025 | |
| Uncommon Cents Investing LLC |
13F
|
Company |
0.11%
|
18,200
|
$37,128 | — | 31 Dec 2025 | |
| Mariner, LLC |
13F
|
Company |
0.11%
|
18,075
|
$36,873 | — | 31 Dec 2025 | |
| Deanna Rene Estes |
3/4/5
|
Director |
—
mixed-class rows
|
995,970
mixed-class rows
|
$30,906 | +$8,706 | 28 Aug 2025 | |
| PATRON PARTNERS, LLC |
13F
|
Company |
0.08%
|
14,000
|
$28,560 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.08%
|
13,655
|
$27,856 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.08%
|
13,627
|
$27,799 | — | 31 Dec 2025 | |
| Virtu Financial LLC |
13F
|
Company |
0.07%
|
12,604
|
$26,000 | — | 31 Dec 2025 | |
| TFO Wealth Partners, LLC |
13F
|
Company |
0.07%
|
11,859
|
$24,192 | — | 31 Dec 2025 | |
| NATIONAL BANK OF CANADA /FI/ |
13F
|
Company |
0.06%
|
10,900
|
$21,909 | — | 31 Dec 2025 | |
| Compass Ion Advisors, LLC |
13F
|
Company |
0.06%
|
10,164
|
$20,735 | — | 31 Dec 2025 | |
| MATRIX ASSET ADVISORS INC/NY |
13F
|
Company |
0.06%
|
10,000
|
$20,400 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.04%
|
6,672
|
$13,611 | — | 31 Dec 2025 | |
| Avalon Trust Co |
13F
|
Company |
0.03%
|
4,300
|
$8,772 | — | 31 Dec 2025 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0.02%
|
4,243
|
$8,656 | — | 31 Dec 2025 | |
| Charles Maurice Weiser |
3/4/5
|
Director |
—
class O/S missing
|
23,042
|
$5,298 | — | 29 Dec 2025 | |
| FIFTH THIRD BANCORP |
13F
|
Company |
0.01%
|
1,300
|
$2,652 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0%
|
749
|
$2,000 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for 374Water Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Yaacov Nagar | SCWO | Common Stock | Gift | -44.8% | -1,440,000 | 1,771,263 | 30 Apr 2026 | Direct | ||
| Russell Kline | SCWO | Common Stock | Purchase | 3.08% | $4,400 | $0.2200 | 20,000 | 668,642 | 16 Dec 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock | Purchase | 74.3% | $103,995 | $0.2311 | 450,000 | 1,055,723 | 16 Dec 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -1.45% | $205,374 | $0.4340 | -473,211 | 32,112,632 | 23 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.19% | $25,681 | $0.4210 | -61,000 | 32,585,843 | 22 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.1% | $13,802 | $0.4209 | -32,791 | 32,646,843 | 22 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.86% | $119,559 | $0.4204 | -284,394 | 32,679,634 | 21 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.04% | $5,609 | $0.4208 | -13,330 | 32,964,028 | 20 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.4% | $55,701 | $0.4230 | -131,680 | 32,977,358 | 17 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.26% | $43,786 | $0.5126 | -85,419 | 33,109,038 | 16 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -1.08% | $188,447 | $0.5179 | -363,868 | 33,194,457 | 15 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -2.04% | $361,410 | $0.5163 | -700,000 | 33,558,325 | 14 Oct 2025 | Direct |
| Rajesh Ramaswamy Melkote | SCWO | Stock options (right to buy) | Award | 500,000 | 500,000 | 09 Oct 2025 | Direct | |||
| Russell Kline | SCWO | Stock options (right to buy) | Award | 162% | 500,000 | 808,642 | 09 Oct 2025 | Direct | ||
| Brad Ian Meyers | SCWO | Stock options (right to buy) | Award | 216.4% | 500,000 | 731,000 | 09 Oct 2025 | Direct | ||
| Yaacov Nagar | SCWO | Common Stock | Sale | -4.19% | $695,686 | $0.4641 | -1,499,000 | 34,258,325 | 08 Oct 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | $390 | $0.3900 | -1,000 | 35,757,325 | 07 Oct 2025 | Direct | |
| Stephen J. Jones | SCWO | Stock options (right to buy) | Award | 4,500,000 | 4,500,000 | 07 Oct 2025 | Direct | |||
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.15% | $21,902 | $0.3993 | -54,850 | 35,758,325 | 08 Sep 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.34% | $48,094 | $0.3928 | -122,439 | 35,813,175 | 05 Sep 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.06% | $8,857 | $0.3900 | -22,711 | 35,935,614 | 29 Aug 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock (restricted stock units) | Award | 237.3% | 426,130 | 605,723 | 28 Aug 2025 | Direct | ||
| Chris M. Gannon | SCWO | Common Stock (restricted stock units) | Award | 111.6% | 1,250,000 | 2,370,000 | 28 Aug 2025 | Direct | ||
| Brad Ian Meyers | SCWO | Common Stock | Award | 326.1% | 375,000 | 490,000 | 28 Aug 2025 | Direct | ||
| Peter Mandel | SCWO | Common Stock (restricted stock unit) | Award | 142.3% | 375,000 | 638,575 | 28 Aug 2025 | Direct | ||
| Russell Kline | SCWO | Common Stock (restricted stock unit) | Award | 62.7% | 250,000 | 648,642 | 28 Aug 2025 | Direct | ||
| Rajesh Ramaswamy Melkote | SCWO | Common Stock (restricted stock units) | Award | 16.5% | 125,000 | 882,756 | 28 Aug 2025 | Direct | ||
| Deanna Rene Estes | SCWO | Common Stock (restricted stock units) | Award | 701.4% | 746,970 | 853,470 | 28 Aug 2025 | Direct | ||
| James Michael Vanderhider | SCWO | Common Stock (restricted stock units) | Award | 1390.3% | 556,130 | 596,130 | 28 Aug 2025 | Direct | ||
| James Pawloski | SCWO | Common Stock (restricted stock units) | Award | 220.4% | 426,131 | 619,431 | 28 Aug 2025 | Direct | ||
| Buddie J. Penn | SCWO | Common Stock (restricted stock units) | Award | 863.3% | 517,962 | 577,962 | 28 Aug 2025 | Direct | ||
| Deanna Rene Estes | SCWO | Common Stock | Purchase | 39.2% | $8,706 | $0.2902 | 30,000 | 106,500 | 26 Aug 2025 | Direct |
| James Pawloski | SCWO | Common Stock | Purchase | $50,819 | $0.2629 | 193,300 | 193,300 | 25 Aug 2025 | Direct | |
| Russell Kline | SCWO | Common Stock | Purchase | 3.91% | $3,744 | $0.2496 | 15,000 | 398,642 | 22 Aug 2025 | Direct |
| Russell Kline | SCWO | Common Stock | Purchase | 4.07% | $3,693 | $0.2462 | 15,000 | 383,642 | 21 Aug 2025 | Direct |
| Russell Kline | SCWO | Common Stock | Purchase | 5.74% | $4,780 | $0.2390 | 20,000 | 368,642 | 20 Aug 2025 | Direct |
| Peter Mandel | SCWO | Common Stock | Purchase | 1.93% | $1,244 | $0.2498 | 4,980 | 263,575 | 19 Aug 2025 | Direct |
| Peter Mandel | SCWO | Common Stock | Purchase | 0.01% | $4.96 | $0.2480 | 20 | 258,595 | 18 Aug 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.07% | $9,829 | $0.4201 | -23,396 | 35,958,325 | 27 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.29% | $43,492 | $0.4207 | -103,379 | 35,981,721 | 26 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.17% | $25,321 | $0.4224 | -59,946 | 36,085,100 | 24 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.1% | $15,309 | $0.4230 | -36,191 | 36,145,046 | 23 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.14% | $20,742 | $0.4020 | -51,598 | 36,181,237 | 18 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.16% | $23,175 | $0.4020 | -57,650 | 36,181,237 | 18 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.02% | $2,421 | $0.4000 | -6,052 | 36,232,835 | 16 Jun 2025 | Direct |
| Yaacov Nagar | SCWO | Common Stock | Sale | -0.12% | $16,940 | $0.4000 | -42,350 | 36,238,887 | 12 Jun 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock | Purchase | 28.6% | $19,000 | $0.4750 | 40,000 | 179,593 | 03 Jun 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock | Purchase | 55.8% | $21,120 | $0.4224 | 50,000 | 139,593 | 30 May 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock | Purchase | 80.7% | $12,600 | $0.3150 | 40,000 | 89,593 | 22 May 2025 | Direct |
| Stephen J. Jones | SCWO | Common Stock | Purchase | $14,878 | $0.3000 | 49,593 | 49,593 | 20 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.