Key facts
- SCWO - 374Water Inc. has 21 insiders with reported activity on this page.
- Net insider value flow over the last year: -$1,730,020.
- 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
Change
- Buy value: $221,506; sell value: $1,951,525.
- Net share flow: -3,387,955.
Research use
- 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.
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: -$1,730,020.
Buys
$221,506
Shares: 838,300
Insiders: 5
Sells
$1,951,526
Shares: 4,226,255
Insiders: 1
Net
-$1,730,020
Shares: -3,387,955
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 | 0 | 3,845,693 | $0 | $1,794,297 | -$1,794,297 |
| 9-12 | 368,300 | 380,562 | $113,111 | $157,229 | -$44,118 |
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 | +$144,115 | +144% | 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 first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings 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 |
|---|---|---|---|---|---|---|---|---|
| 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 | |
| Bogar Daniel T. |
3/4/5
|
President / CEO |
0.46%
|
79,327
|
$217,355 | — | 23 Feb 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.9%
|
322,788
|
$916,718 | — | 31 Mar 2026 | |
| CAPTRUST FINANCIAL ADVISORS |
13F
|
Company |
1.2%
|
206,738
|
$587,136 | — | 31 Mar 2026 | |
| HAMILTON LANE ADVISORS LLC |
13F
|
Company |
0.94%
|
160,228
|
$455,048 | — | 31 Mar 2026 | |
| D.A. DAVIDSON & CO. |
13F
|
Company |
0.79%
|
135,482
|
$384,769 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.7%
|
119,354
|
$339,074 | — | 31 Mar 2026 | |
| Icon Wealth Advisors, LLC |
13F
|
Company |
0.63%
|
108,361
|
$261,150 | — | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
|
Company |
0.46%
|
79,292
|
$225,190 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.37%
|
63,675
|
$180,837 | — | 31 Mar 2026 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
0.37%
|
63,353
|
$179,922 | — | 31 Mar 2026 | |
| Sigma Planning Corp |
13F
|
Company |
0.31%
|
52,353
|
$148,683 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.28%
|
48,458
|
$137,621 | — | 31 Mar 2026 | |
| SENTINEL TRUST CO LBA |
13F
|
Company |
0.23%
|
40,130
|
$114,000 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.23%
|
39,023
|
$110,826 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.22%
|
37,028
|
$105,160 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.2%
|
33,844
|
$96,117 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.16%
|
28,185
|
$80,045 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
0.14%
|
23,176
|
$65,820 | — | 31 Mar 2026 | |
| Trinity Legacy Partners, LLC |
13F
|
Company |
0.14%
|
23,162
|
$76,435 | — | 31 Mar 2026 | |
| Uncommon Cents Investing LLC |
13F
|
Company |
0.11%
|
18,200
|
$51,688 | — | 31 Mar 2026 | |
| Mariner, LLC |
13F
|
Company |
0.11%
|
18,075
|
$51,333 | — | 31 Mar 2026 | |
| Prospera Financial Services Inc |
13F
|
Company |
0.1%
|
17,500
|
$49,700 | — | 31 Mar 2026 | |
| PATRON PARTNERS, LLC |
13F
|
Company |
0.09%
|
15,000
|
$42,600 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.08%
|
13,627
|
$38,701 | — | 31 Mar 2026 | |
| Westend Capital Management, LLC |
13F
|
Company |
0.08%
|
13,000
|
$36,920 | — | 31 Mar 2026 | |
| TFO Wealth Partners, LLC |
13F
|
Company |
0.07%
|
11,859
|
$33,680 | — | 31 Mar 2026 | |
| NATIONAL BANK OF CANADA /FI/ |
13F
|
Company |
0.06%
|
10,750
|
$30,530 | — | 31 Mar 2026 | |
| Compass Ion Advisors, LLC |
13F
|
Company |
0.06%
|
10,164
|
$28,866 | — | 31 Mar 2026 | |
| MATRIX ASSET ADVISORS INC/NY |
13F
|
Company |
0.06%
|
10,000
|
$28,400 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.04%
|
6,085
|
$17,281 | — | 31 Mar 2026 | |
| Avalon Trust Co |
13F
|
Company |
0.03%
|
4,300
|
$12,212 | — | 31 Mar 2026 | |
| Vanguard Global Advisers, LLC |
13F
|
Company |
0.01%
|
1,970
|
$5,595 | — | 31 Mar 2026 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.01%
|
1,662
|
$4,000 | — | 31 Mar 2026 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0.01%
|
1,303
|
$3,701 | — | 31 Mar 2026 | |
| FIFTH THIRD BANCORP |
13F
|
Company |
0.01%
|
1,300
|
$3,692 | — | 31 Mar 2026 | |
| Graney & King, LLC |
13F
|
Company |
0%
|
750
|
$2,130 | — | 31 Mar 2026 | |
| Smartleaf Asset Management LLC |
13F
|
Company |
0%
|
345
|
$949 | — | 31 Mar 2026 | |
| Wealth Preservation Advisors, LLC |
13F
|
Company |
0%
|
250
|
$710 | — | 31 Mar 2026 | |
| QUADRANT CAPITAL GROUP LLC |
13F
|
Company |
0%
|
210
|
$597 | — | 31 Mar 2026 | |
| Clearstead Advisors, LLC |
13F
|
Company |
0%
|
100
|
$284 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0%
|
58
|
$160 | — | 31 Mar 2026 | |
| Blue Trust, Inc. |
13F
|
Company |
0%
|
50
|
$142 | — | 31 Mar 2026 | |
| FIRST COMMUNITY TRUST NA |
13F
|
Company |
0%
|
50
|
$142 | — | 31 Mar 2026 | |
| JONES FINANCIAL COMPANIES LLLP |
13F
|
Company |
0%
|
40
|
$118 | — | 31 Mar 2026 | |
| First Pacific Financial |
13F
|
Company |
0%
|
30
|
$86 | — | 31 Mar 2026 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0%
|
10
|
$28 | — | 31 Mar 2026 | |
| Optiver Holding B.V. |
13F
|
Company |
0%
|
2
|
$6 | — | 31 Mar 2026 | |
| CITIGROUP INC |
13F
|
Company |
0%
|
1
|
$3 | — | 31 Mar 2026 |
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 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.