374Water Inc. (SCWO) Insider Trading
Directors, officers and holders of more than 10% of SCWO report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 121 transactions on file: 9 with code P, 21 with code S and 20 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Weiser Charles Maurice | Chief Financial Officer | A Award | 125,000 | Not measured | Not measured |
| Jul 1, 2026 | Weiser Charles Maurice | Chief Financial Officer | A Award | 150,000 | Not measured | Not measured |
| Jun 12, 2026 | Meyers Brad Ian | Chief Operating Officer | S Sale | 9,831 | $2.33 | $22,906 |
| Jun 11, 2026 | Meyers Brad Ian | Chief Operating Officer | S Sale | 9,000 | $2.46 | $22,140 |
| Apr 30, 2026 | Nagar Yaacov | 10% Owner | G Gift | 1,440,000 | $2.48 | $3,571,200 |
| Dec 16, 2025 | Jones Stephen J | Director | P Purchase | 45,000 | $2.31 | $103,995 |
| Dec 16, 2025 | Russell Kline | Chief Financial Officer | P Purchase | 2,000 | $2.20 | $4,400 |
| Oct 23, 2025 | Nagar Yaacov | 10% Owner | S Sale | 47,321 | $4.34 | $205,374 |
| Oct 22, 2025 | Nagar Yaacov | 10% Owner | S Sale | 3,279 | $4.21 | $13,802 |
| Oct 22, 2025 | Nagar Yaacov | 10% Owner | S Sale | 6,100 | $4.21 | $25,681 |
| Oct 21, 2025 | Nagar Yaacov | 10% Owner | S Sale | 28,439 | $4.20 | $119,559 |
| Oct 20, 2025 | Nagar Yaacov | 10% Owner | S Sale | 1,333 | $4.21 | $5,609 |
| Oct 17, 2025 | Nagar Yaacov | 10% Owner | S Sale | 13,168 | $4.23 | $55,701 |
| Oct 16, 2025 | Nagar Yaacov | 10% Owner | S Sale | 8,542 | $5.13 | $43,786 |
| Oct 15, 2025 | Nagar Yaacov | 10% Owner | S Sale | 36,387 | $5.18 | $188,447 |
| Oct 14, 2025 | Nagar Yaacov | 10% Owner | S Sale | 70,000 | $5.16 | $361,410 |
| Oct 9, 2025 | Meyers Brad Ian | Chief Operating Officer | A Award | 500,000 | Not measured | Not measured |
| Oct 9, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A Award | 500,000 | Not measured | Not measured |
| Oct 9, 2025 | Russell Kline | Chief Financial Officer | A Award | 500,000 | Not measured | Not measured |
| Oct 8, 2025 | Nagar Yaacov | 10% Owner | S Sale | 149,900 | $4.64 | $695,686 |
| Oct 7, 2025 | Jones Stephen J | Director | A Award | 4,500,000 | Not measured | Not measured |
| Oct 7, 2025 | Nagar Yaacov | 10% Owner | S Sale | 100 | $3.90 | $390 |
| Sep 8, 2025 | Nagar Yaacov | 10% Owner | S Sale | 5,485 | $3.99 | $21,902 |
| Sep 5, 2025 | Nagar Yaacov | 10% Owner | S Sale | 12,244 | $3.93 | $48,094 |
| Aug 29, 2025 | Nagar Yaacov | 10% Owner | S Sale | 2,271 | $3.90 | $8,857 |
| Aug 28, 2025 | Russell Kline | Chief Financial Officer | A Award | 250,000 | Not measured | Not measured |
| Aug 28, 2025 | Gannon Chris M | President & CEO | A Award | 1,250,000 | Not measured | Not measured |
| Aug 28, 2025 | Jones Stephen J | Director | A Award | 426,130 | Not measured | Not measured |
| Aug 28, 2025 | Mandel Peter | General Counsel | A Award | 375,000 | Not measured | Not measured |
| Aug 28, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A Award | 125,000 | Not measured | Not measured |
| Aug 28, 2025 | Penn Buddie J | Director | A Award | 387,962 | Not measured | Not measured |
| Aug 28, 2025 | Penn Buddie J | Director | A Award | 130,000 | Not measured | Not measured |
| Aug 28, 2025 | Pawloski James | Director | A Award | 426,131 | Not measured | Not measured |
| Aug 28, 2025 | Vanderhider James Michael | Director | A Award | 426,130 | Not measured | Not measured |
| Aug 28, 2025 | Vanderhider James Michael | Director | A Award | 130,000 | Not measured | Not measured |
| Aug 28, 2025 | Estes Deanna Rene | Director | A Award | 616,970 | Not measured | Not measured |
| Aug 28, 2025 | Estes Deanna Rene | Director | A Award | 130,000 | Not measured | Not measured |
| Aug 28, 2025 | Meyers Brad Ian | Chief Operating Officer | A Award | 37,500 | Not measured | Not measured |
| Aug 26, 2025 | Estes Deanna Rene | Director | P Purchase | 3,000 | $2.90 | $8,706 |
| Aug 25, 2025 | Pawloski James | Director | P Purchase | 19,330 | $2.63 | $50,819 |
| Aug 22, 2025 | Russell Kline | Chief Financial Officer | P Purchase | 1,500 | $2.50 | $3,744 |
| Aug 21, 2025 | Russell Kline | Chief Financial Officer | P Purchase | 1,500 | $2.46 | $3,693 |
| Aug 20, 2025 | Russell Kline | Chief Financial Officer | P Purchase | 2,000 | $2.39 | $4,780 |
| Aug 19, 2025 | Mandel Peter | General Counsel | P Purchase | 498 | $2.50 | $1,244 |
| Aug 18, 2025 | Mandel Peter | General Counsel | P Purchase | 2 | $2.48 | $5 |
| Jun 27, 2025 | Nagar Yaacov | 10% Owner | S Sale | 2,340 | $4.20 | $9,829 |
| Jun 26, 2025 | Nagar Yaacov | 10% Owner | S Sale | 10,338 | $4.21 | $43,492 |
| Jun 24, 2025 | Nagar Yaacov | 10% Owner | S Sale | 5,995 | $4.22 | $25,321 |
| Jun 23, 2025 | Nagar Yaacov | 10% Owner | S Sale | 3,619 | $4.23 | $15,309 |
| Jun 18, 2025 | Nagar Yaacov | 10% Owner | S Sale | 5,160 | $4.02 | $20,742 |
The full Form 4 history is on the SCWO company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.