In the last 12 months, insiders at 374Water Inc. ($SCWO) filed 124 transactions with the SEC: 29 open-market purchases totaling $882,483 and 50 sales totaling $3,290,625. Net insider sentiment: net selling.
374Water Inc. operates in the Motors & generators industry (Manufacturing sector).
Most Active Insiders
- Nagar Yaacov (Not found) — 50 transactions totaling $3,290,625
- Vanderhider James Michael (Not found) — 5 transactions totaling $312,500
- DAVIS RICHARD H (Not found) — 6 transactions totaling $290,000
- Gannon Chris M (President & CEO) — 2 transactions totaling $150,000
- Jones Stephen J (Interim CEO) — 2 transactions totaling $103,995
View all SEC Filings for 374Water Inc. (SCWO).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 16, 2025 | Russell Kline | Chief Financial Officer | P | Common Stock | 20000 | $0.22 | 668,642.0000 | 169,248,799 | 3.08% | 0.01% |
| Dec. 16, 2025 | Jones Stephen J | Interim CEO | P | Common Stock | 450000 | $0.23 | 1,055,723.0000 | 169,248,799 | 74.29% | 0.27% |
| Oct. 22, 2025 | Nagar Yaacov | Not found | S | Common Stock | 61000 | $0.42 | 32,585,843.0000 | 144,576,713 | 0.19% | 0.04% |
| Oct. 23, 2025 | Nagar Yaacov | Not found | S | Common Stock | 473211 | $0.43 | 32,112,632.0000 | 144,576,713 | 1.45% | 0.33% |
| Oct. 9, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A | Stock options (right to buy) | 500000 | $0.00 | 500,000.0000 | 144,576,713 | 9999.99% | 0.35% |
| Oct. 20, 2025 | Nagar Yaacov | Not found | S | Common Stock | 13330 | $0.42 | 32,964,028.0000 | 144,576,713 | 0.04% | 0.01% |
| Oct. 22, 2025 | Nagar Yaacov | Not found | S | Common Stock | 32791 | $0.42 | 32,646,843.0000 | 144,576,713 | 0.10% | 0.02% |
| Oct. 21, 2025 | Nagar Yaacov | Not found | S | Common Stock | 284394 | $0.42 | 32,679,634.0000 | 144,576,713 | 0.86% | 0.20% |
| Oct. 16, 2025 | Nagar Yaacov | Not found | S | Common Stock | 85419 | $0.51 | 33,109,038.0000 | 144,576,713 | 0.26% | 0.06% |
| Oct. 17, 2025 | Nagar Yaacov | Not found | S | Common Stock | 131680 | $0.42 | 32,977,358.0000 | 144,576,713 | 0.40% | 0.09% |
| Oct. 15, 2025 | Nagar Yaacov | Not found | S | Common Stock | 363868 | $0.52 | 33,194,457.0000 | 144,576,713 | 1.08% | 0.25% |
| Oct. 14, 2025 | Nagar Yaacov | Not found | S | Common Stock | 700000 | $0.52 | 33,558,325.0000 | 144,576,713 | 2.04% | 0.48% |
| Oct. 9, 2025 | Meyers Brad Ian | Chief Operating Officer | A | Stock options (right to buy) | 500000 | $0.00 | 731,000.0000 | 144,576,713 | 216.45% | 0.35% |
| Oct. 9, 2025 | Russell Kline | Chief Financial Officer | A | Stock options (right to buy) | 500000 | $0.00 | 808,642.0000 | 144,576,713 | 162.00% | 0.35% |
| Oct. 8, 2025 | Nagar Yaacov | Not found | S | Common Stock | 1499000 | $0.46 | 34,258,325.0000 | 144,576,713 | 4.19% | 1.04% |
| Oct. 7, 2025 | Jones Stephen J | Interim CEO | A | Stock options (right to buy) | 4500000 | $0.00 | 4,500,000.0000 | 144,576,713 | 9999.99% | 3.11% |
| Oct. 7, 2025 | Nagar Yaacov | Not found | S | Common Stock | 1000 | $0.39 | 35,757,325.0000 | 144,576,713 | 0.00% | 0.00% |
| Sept. 5, 2025 | Nagar Yaacov | Not found | S | Common Stock | 122439 | $0.39 | 35,813,175.0000 | 144,576,713 | 0.34% | 0.08% |
| Aug. 29, 2025 | Nagar Yaacov | Not found | S | Common Stock | 22711 | $0.39 | 35,935,614.0000 | 144,576,713 | 0.06% | 0.02% |
| Sept. 8, 2025 | Nagar Yaacov | Not found | S | Common Stock | 54850 | $0.40 | 35,758,325.0000 | 144,576,713 | 0.15% | 0.04% |
| Aug. 28, 2025 | Meyers Brad Ian | Chief Operating Officer | A | Common Stock | 375000 | $0.00 | 490,000.0000 | 144,576,713 | 326.09% | 0.26% |
| May 16, 2025 | Meyers Brad Ian | Chief Operating Officer | A | Restricted Stock Units | 115500 | $0.00 | 115,500.0000 | 144,576,713 | 9999.99% | 0.08% |
| May 16, 2025 | Meyers Brad Ian | Chief Operating Officer | A | Common Stock (restricted stock units) | 115500 | $0.00 | 115,500.0000 | 144,576,713 | 9999.99% | 0.08% |
| April 22, 2024 | Gannon Chris M | Chief Executive Officer | A | Restricted Stock Units | 1250000 | $0.00 | 1,250,000.0000 | 0 | 9999.99% | 0.00% |
| Aug. 28, 2025 | Gannon Chris M | Chief Executive Officer | A | Common Stock (restricted stock units) | 1250000 | $0.00 | 2,370,000.0000 | 144,576,713 | 111.61% | 0.86% |
| April 22, 2024 | Gannon Chris M | Chief Executive Officer | A | Common Stock (restricted stock units) | 1000000 | $0.00 | 1,120,000.0000 | 0 | 833.33% | 0.00% |
| Aug. 28, 2025 | Jones Stephen J | Not found | A | Common Stock (restricted stock units) | 426130 | $0.00 | 605,723.0000 | 144,576,713 | 237.28% | 0.29% |
| Aug. 28, 2025 | Mandel Peter | General Counsel | A | Common Stock (restricted stock unit) | 375000 | $0.00 | 638,575.0000 | 144,576,713 | 142.27% | 0.26% |
| Aug. 28, 2025 | Pawloski James | Not found | A | Common Stock (restricted stock units) | 426131 | $0.00 | 619,431.0000 | 144,576,713 | 220.45% | 0.29% |
| Aug. 28, 2025 | Vanderhider James Michael | Not found | A | Common Stock (restricted stock units) | 426130 | $0.00 | 596,130.0000 | 144,576,713 | 250.66% | 0.29% |
| Aug. 28, 2025 | Vanderhider James Michael | Not found | A | Common Stock (restricted stock units) | 130000 | $0.00 | 170,000.0000 | 144,576,713 | 325.00% | 0.09% |
| Aug. 28, 2025 | Estes Deanna Rene | Not found | A | Common Stock (restricted stock units) | 616970 | $0.00 | 853,470.0000 | 144,576,713 | 260.88% | 0.43% |
| Aug. 28, 2025 | Estes Deanna Rene | Not found | A | Common Stock (restricted stock units) | 130000 | $0.00 | 236,500.0000 | 144,576,713 | 122.07% | 0.09% |
| Aug. 28, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A | Common Stock (restricted stock units) | 125000 | $0.00 | 882,756.0000 | 144,576,713 | 16.50% | 0.09% |
| Aug. 28, 2025 | Russell Kline | Chief Financial Officer | A | Common Stock (restricted stock unit) | 250000 | $0.00 | 648,642.0000 | 144,576,713 | 62.71% | 0.17% |
| Aug. 28, 2025 | Penn Buddie J | Not found | A | Common Stock (restricted stock units) | 387962 | $0.00 | 577,962.0000 | 144,576,713 | 204.19% | 0.27% |
| Aug. 28, 2025 | Penn Buddie J | Not found | A | Common Stock (restricted stock units) | 130000 | $0.00 | 190,000.0000 | 144,576,713 | 216.67% | 0.09% |
| Aug. 26, 2025 | Estes Deanna Rene | Not found | P | Common Stock | 30000 | $0.29 | 106,500.0000 | 144,576,713 | 39.22% | 0.02% |
| Aug. 25, 2025 | Pawloski James | Not found | P | Common Stock | 193300 | $0.26 | 193,300.0000 | 144,576,713 | 9999.99% | 0.13% |
| Aug. 21, 2025 | Russell Kline | Chief Financial Officer | P | Common Stock | 15000 | $0.25 | 383,642.0000 | 144,576,713 | 4.07% | 0.01% |
| Aug. 22, 2025 | Russell Kline | Chief Financial Officer | P | Common Stock | 15000 | $0.25 | 398,642.0000 | 144,576,713 | 3.91% | 0.01% |
| Aug. 20, 2025 | Russell Kline | Chief Financial Officer | P | Common Stock | 20000 | $0.24 | 368,642.0000 | 144,576,713 | 5.74% | 0.01% |
| Aug. 19, 2025 | Mandel Peter | General Counsel | P | Common Stock | 4980 | $0.25 | 263,575.0000 | 144,576,713 | 1.93% | 0.00% |
| Aug. 18, 2025 | Mandel Peter | General Counsel | P | Common Stock | 20 | $0.25 | 258,595.0000 | 144,576,713 | 0.01% | 0.00% |
| June 27, 2025 | Nagar Yaacov | Not found | S | Common Stock | 23396 | $0.42 | 35,958,325.0000 | 144,576,713 | 0.07% | 0.02% |
| June 26, 2025 | Nagar Yaacov | Not found | S | Common Stock | 103379 | $0.42 | 35,981,721.0000 | 144,576,713 | 0.29% | 0.07% |
| June 18, 2025 | Nagar Yaacov | Not found | S | Common Stock | 51598 | $0.40 | 36,181,237.0000 | 144,576,713 | 0.14% | 0.04% |
| June 24, 2025 | Nagar Yaacov | Not found | S | Common Stock | 59946 | $0.42 | 36,085,100.0000 | 144,576,713 | 0.17% | 0.04% |
| June 23, 2025 | Nagar Yaacov | Not found | S | Common Stock | 36191 | $0.42 | 36,145,046.0000 | 144,576,713 | 0.10% | 0.03% |
| June 18, 2025 | Nagar Yaacov | Not found | S | Common Stock | 57650 | $0.40 | 36,181,237.0000 | 144,576,713 | 0.16% | 0.04% |
| June 16, 2025 | Nagar Yaacov | Not found | S | Common Stock | 6052 | $0.40 | 36,232,835.0000 | 144,576,713 | 0.02% | 0.00% |
| June 12, 2025 | Nagar Yaacov | Not found | S | Common Stock | 42350 | $0.40 | 36,238,887.0000 | 144,576,713 | 0.12% | 0.03% |
| June 3, 2025 | Jones Stephen J | Not found | P | Common Stock | 40000 | $0.48 | 179,593.0000 | 144,576,713 | 28.65% | 0.03% |
| May 30, 2025 | Jones Stephen J | Not found | P | Common Stock | 50000 | $0.42 | 139,593.0000 | 144,576,713 | 55.81% | 0.03% |
| May 22, 2025 | Jones Stephen J | Not found | P | Common Stock | 40000 | $0.32 | 89,593.0000 | 144,576,713 | 80.66% | 0.03% |
| May 20, 2025 | Jones Stephen J | Not found | P | Common Stock | 49593 | $0.30 | 49,593.0000 | 144,576,713 | 9999.99% | 0.03% |
| April 30, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A | Stock options (right to buy) | 757576 | $0.00 | 757,756.0000 | 144,576,713 | 9999.99% | 0.52% |
| April 30, 2025 | Melkote Rajesh Ramaswamy | Chief Technology Officer | A | Common Stock (restricted stock units) | 757756 | $0.00 | 757,756.0000 | 144,576,713 | 9999.99% | 0.52% |
| March 26, 2025 | Nagar Yaacov | Not found | S | Common Stock | 45998 | $0.42 | 36,342,462.0000 | 0 | 0.13% | 0.00% |
| March 27, 2025 | Nagar Yaacov | Not found | S | Common Stock | 61225 | $0.41 | 36,281,237.0000 | 144,576,713 | 0.17% | 0.04% |
| Feb. 7, 2025 | Nagar Yaacov | Not found | S | Common Stock | 12436 | $0.42 | 36,388,460.0000 | 0 | 0.03% | 0.00% |
| Feb. 5, 2025 | Nagar Yaacov | Not found | S | Common Stock | 144860 | $0.43 | 36,400,896.0000 | 0 | 0.40% | 0.00% |
| Feb. 3, 2025 | Nagar Yaacov | Not found | S | Common Stock | 212120 | $0.49 | 36,561,675.0000 | 0 | 0.58% | 0.00% |
| Feb. 4, 2025 | Nagar Yaacov | Not found | S | Common Stock | 15919 | $0.45 | 36,545,756.0000 | 0 | 0.04% | 0.00% |
| Jan. 23, 2025 | Nagar Yaacov | Not found | S | Common Stock | 31025 | $0.60 | 36,774,695.0000 | 0 | 0.08% | 0.00% |
| Jan. 24, 2025 | Nagar Yaacov | Not found | S | Common Stock | 900 | $0.59 | 36,773,795.0000 | 0 | 0.00% | 0.00% |
| Jan. 21, 2025 | Nagar Yaacov | Not found | S | Common Stock | 36390 | $0.60 | 36,825,492.0000 | 0 | 0.10% | 0.00% |
| Jan. 22, 2025 | Nagar Yaacov | Not found | S | Common Stock | 19772 | $0.59 | 36,805,720.0000 | 0 | 0.05% | 0.00% |
| Jan. 16, 2025 | Nagar Yaacov | Not found | S | Common Stock | 300 | $0.63 | 36,976,880.0000 | 0 | 0.00% | 0.00% |
| Jan. 17, 2025 | Nagar Yaacov | Not found | S | Common Stock | 114998 | $0.60 | 36,861,882.0000 | 0 | 0.31% | 0.00% |
| Jan. 15, 2025 | Russell Kline | Chief Financial Officer | A | Common Stock (restricted stock units) | 308642 | $0.00 | 348,642.0000 | 0 | 771.61% | 0.00% |
| Jan. 15, 2025 | Russell Kline | Chief Financial Officer | A | Stock options (right to buy) | 308642 | $0.00 | 308,642.0000 | 0 | 9999.99% | 0.00% |
| Jan. 15, 2025 | Nagar Yaacov | Not found | S | Common Stock | 12304 | $0.63 | 36,977,180.0000 | 0 | 0.03% | 0.00% |
| Jan. 14, 2025 | Nagar Yaacov | Not found | S | Common Stock | 61268 | $0.63 | 36,989,484.0000 | 0 | 0.17% | 0.00% |
| Jan. 10, 2025 | Nagar Yaacov | Not found | S | Common Stock | 69570 | $0.68 | 37,050,752.0000 | 0 | 0.19% | 0.00% |
| Dec. 30, 2024 | DAVIS RICHARD H | Not found | M | Stock options (right to buy) | 1000000 | $0.00 | 2,700,000.0000 | 0 | 27.03% | 0.00% |
| Dec. 30, 2024 | DAVIS RICHARD H | Not found | F | Common Stock | 179105 | $0.67 | 1,314,326.0000 | 0 | 11.99% | 0.00% |
| Dec. 30, 2024 | DAVIS RICHARD H | Not found | M | Common Stock | 1000000 | $0.12 | 1,493,431.0000 | 0 | 202.66% | 0.00% |
| Nov. 18, 2024 | DAVIS RICHARD H | Not found | P | Common Stock | 40000 | $1.25 | 170,533.0000 | 0 | 30.64% | 0.00% |
| Nov. 18, 2024 | DAVIS RICHARD H | Not found | P | Warrants (right to buy) | 60000 | $0.00 | 60,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 15, 2024 | DAVIS RICHARD H | Not found | A | Common Stock (restricted stock units) | 40000 | $0.00 | 322,898.0000 | 0 | 14.14% | 0.00% |
| Nov. 18, 2024 | Gannon Chris M | President & CEO | P | Warrants (right to buy) | 180000 | $0.00 | 180,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Gannon Chris M | President & CEO | P | Common Stock | 120000 | $1.25 | 120,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Anderson Adrienne | Chief Financial Officer | P | Warrants (right to buy) | 15000 | $0.00 | 15,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Penn Buddie J | Not found | P | Common Stock | 20000 | $1.25 | 60,000.0000 | 0 | 50.00% | 0.00% |
| Nov. 15, 2024 | Penn Buddie J | Not found | A | Common Stock (restricted stock units) | 40000 | $0.00 | 40,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Deshusses Marc | Not found | P | Warrants (right to buy) | 48000 | $0.00 | 48,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Deshusses Marc | Not found | P | Common Stock | 32000 | $1.25 | 22,652,451.0000 | 0 | 0.14% | 0.00% |
| Nov. 18, 2024 | Penn Buddie J | Not found | P | Warrants (right to buy) | 30000 | $0.00 | 30,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 15, 2024 | Merrell Terry | Not found | A | Common Stock | 40000 | $0.00 | 6,090,584.0000 | 0 | 0.66% | 0.00% |
| Nov. 18, 2024 | Mandel Peter | General Counsel | P | Warrants (right to buy) | 16200 | $0.00 | 16,200.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Mandel Peter | General Counsel | A | Stock options (right to buy) | 247775 | $0.00 | 247,775.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Mandel Peter | General Counsel | P | Common Stock | 10800 | $1.25 | 258,575.0000 | 0 | 4.36% | 0.00% |
| Nov. 15, 2024 | Mandel Peter | General Counsel | A | Common Stock (restricted stock units) | 247775 | $0.00 | 247,775.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Estes Deanna Rene | Not found | P | Warrants (right to buy) | 36000 | $0.00 | 36,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Estes Deanna Rene | Not found | P | Common Stock | 24000 | $1.25 | 76,500.0000 | 0 | 45.71% | 0.00% |
| Nov. 15, 2024 | Estes Deanna Rene | Not found | A | Common Stock (restricted stock units) | 40000 | $0.00 | 52,500.0000 | 0 | 320.00% | 0.00% |
| Nov. 18, 2024 | Vanderhider James Michael | Not found | P | Warrants (right to buy) | 375000 | $0.00 | 375,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Vanderhider James Michael | Not found | P | Common Stock | 250000 | $1.25 | 1,420,000.0000 | 0 | 21.37% | 0.00% |
| Nov. 15, 2024 | Vanderhider James Michael | Not found | A | Common Stock (restricted stock units) | 40000 | $0.00 | 40,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Anderson Adrienne | Chief Financial Officer | P | Common Stock | 10000 | $1.25 | 72,837.0000 | 0 | 15.91% | 0.00% |
| Nov. 15, 2024 | Anderson Adrienne | Chief Financial Officer | A | Common Stock (restricted stock units) | 50000 | $0.00 | 61,762.0000 | 0 | 425.10% | 0.00% |
| Nov. 15, 2024 | Anderson Adrienne | Chief Financial Officer | A | Common Stock (restricted stock units) | 11762 | $0.00 | 11,762.0000 | 0 | 9999.99% | 0.00% |
| Nov. 14, 2024 | Nagar Yaacov | Not found | S | Common Stock | 8563 | $1.41 | 37,120,322.0000 | 0 | 0.02% | 0.00% |
| Nov. 12, 2024 | Nagar Yaacov | Not found | S | Common Stock | 4252 | $1.51 | 37,159,006.0000 | 0 | 0.01% | 0.00% |
| Nov. 13, 2024 | Nagar Yaacov | Not found | S | Common Stock | 30121 | $1.42 | 37,128,885.0000 | 0 | 0.08% | 0.00% |
| Nov. 8, 2024 | Nagar Yaacov | Not found | S | Common Stock | 13771 | $1.62 | 37,193,920.0000 | 0 | 0.04% | 0.00% |
| Nov. 11, 2024 | Nagar Yaacov | Not found | S | Common Stock | 30662 | $1.54 | 37,163,258.0000 | 0 | 0.08% | 0.00% |
| Nov. 7, 2024 | Nagar Yaacov | Not found | S | Common Stock | 38280 | $1.62 | 37,207,691.0000 | 0 | 0.10% | 0.00% |
| Nov. 6, 2024 | Nagar Yaacov | Not found | S | Common Stock | 133273 | $1.54 | 37,245,971.0000 | 0 | 0.36% | 0.00% |
| Nov. 4, 2024 | Nagar Yaacov | Not found | S | Common Stock | 37832 | $1.41 | 37,499,420.0000 | 0 | 0.10% | 0.00% |
| Nov. 5, 2024 | Nagar Yaacov | Not found | S | Common Stock | 120176 | $1.43 | 37,379,244.0000 | 0 | 0.32% | 0.00% |
| Oct. 31, 2024 | Nagar Yaacov | Not found | S | Common Stock | 462 | $1.63 | 37,637,818.0000 | 0 | 0.00% | 0.00% |
| Nov. 1, 2024 | Nagar Yaacov | Not found | S | Common Stock | 100566 | $1.47 | 37,537,252.0000 | 0 | 0.27% | 0.00% |
| Oct. 30, 2024 | Nagar Yaacov | Not found | S | Common Stock | 27915 | $1.68 | 37,638,280.0000 | 0 | 0.07% | 0.00% |
| Oct. 29, 2024 | Nagar Yaacov | Not found | S | Common Stock | 44557 | $1.77 | 37,666,195.0000 | 0 | 0.12% | 0.00% |
| May 16, 2024 | Meyers Brad Ian | Chief Operating Officer | A | Restricted Stock Units | 231000 | $0.00 | 231,000.0000 | 0 | 9999.99% | 0.00% |
| May 16, 2024 | Meyers Brad Ian | Chief Operating Officer | A | Option to Purchase Common Stock | 231000 | $0.00 | 231,000.0000 | 0 | 9999.99% | 0.00% |
| June 1, 2023 | Merrell Terry | Not found | G | Common Stock | 19305 | $0.00 | 6,050,584.0000 | 0 | 0.32% | 0.00% |
| May 31, 2023 | Merrell Terry | Not found | G | Common Stock | 1048444 | $0.00 | 6,069,889.0000 | 0 | 14.73% | 0.00% |
| April 18, 2023 | Abitbol Israel David | Chief Financial Officer | A | Common Stock | 10000 | $0.00 | 402,716.0000 | 0 | 2.55% | 0.00% |
| April 18, 2023 | Abitbol Israel David | Chief Financial Officer | A | Option to Purchase Common Stock | 150000 | $0.00 | 150,000.0000 | 0 | 9999.99% | 0.00% |
| April 18, 2023 | Nagar Yaacov | Chief Executive Officer | A | Common Stock | 10000 | $0.00 | 37,710,752.0000 | 0 | 0.03% | 0.00% |
| April 18, 2023 | Nagar Yaacov | Chief Executive Officer | A | Option to Purchase Common Stock | 150000 | $0.00 | 150,000.0000 | 0 | 9999.99% | 0.00% |