In the last 12 months, insiders at ESS Tech, Inc. ($GWH) filed 54 transactions with the SEC: 7 open-market purchases totaling $89,790 and 3 sales totaling $44,675. Net insider sentiment: net buying.
ESS Tech, Inc. operates in the Miscellaneous electrical machinery, equipment & supplies industry (Manufacturing sector).
Most Active Insiders
- Rabb Anthony (Chief Financial Officer) — 12 transactions totaling $156,563
- NIGGLI MICHAEL R (Director) — 4 transactions totaling $81,542
- Quarls Harry (Director) — 4 transactions totaling $80,805
- Nijhawan Sandeep (Director) — 3 transactions totaling $40,040
- Goodman Kelly F. (Interim CEO) — 6 transactions totaling $29,200
View all SEC Filings for ESS Tech, Inc. (GWH).
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 20, 2026 | Goodman Kelly F. | SEE REMARKS | S | Common Stock | 2269 | $1.54 | 215,853.0000 | 19,617,070 | 1.04% | 0.01% |
| Feb. 13, 2026 | Goodman Kelly F. | SEE REMARKS | A | Common Stock | 137500 | $0.00 | 218,122.0000 | 19,617,070 | 170.55% | 0.70% |
| Feb. 20, 2026 | Suhadolnik Kate Eileen | Chief Financial Officer | S | Common Stock | 741 | $1.54 | 164,414.0000 | 19,617,070 | 0.45% | 0.00% |
| Feb. 13, 2026 | Goodman Kelly F. | SEE REMARKS | A | Stock Option (right to buy) | 137500 | $0.00 | 137,500.0000 | 19,617,070 | 9999.99% | 0.70% |
| Feb. 13, 2026 | Suhadolnik Kate Eileen | Chief Financial Officer | A | Common Stock | 137500 | $0.00 | 165,155.0000 | 19,617,070 | 497.20% | 0.70% |
| Feb. 13, 2026 | Suhadolnik Kate Eileen | Chief Financial Officer | A | Stock Option (right to buy) | 137500 | $0.00 | 137,500.0000 | 19,617,070 | 9999.99% | 0.70% |
| Jan. 28, 2026 | Buckley Drew P | CEO | A | Stock Option (right to buy) | 550000 | $0.00 | 550,000.0000 | 19,617,070 | 9999.99% | 2.80% |
| Nov. 20, 2025 | Suhadolnik Kate Eileen | Interim CFO | F | Common Stock | 1299 | $2.40 | 27,655.0000 | 19,617,070 | 4.49% | 0.01% |
| Nov. 20, 2025 | Goodman Kelly F. | Interim CEO | F | Common Stock | 4513 | $2.40 | 80,622.0000 | 19,617,070 | 5.30% | 0.02% |
| Oct. 13, 2025 | Nijhawan Sandeep | Director | A | Common Stock | 13513 | $0.00 | 29,050.0000 | 12,103,750 | 86.97% | 0.11% |
| Oct. 13, 2025 | Teamey Kyle | Director | A | Common Stock | 13513 | $0.00 | 38,740.0000 | 12,103,750 | 53.57% | 0.11% |
| Oct. 13, 2025 | Hossfeld Rich | Director | A | Common Stock | 13513 | $0.00 | 27,859.0000 | 12,103,750 | 94.19% | 0.11% |
| Oct. 13, 2025 | Garabedian Raffi | Director | A | Common Stock | 13513 | $0.00 | 39,672.0000 | 12,103,750 | 51.66% | 0.11% |
| Oct. 13, 2025 | NIGGLI MICHAEL R | Director | A | Common Stock | 13513 | $0.00 | 90,825.0000 | 12,103,750 | 17.48% | 0.11% |
| Oct. 13, 2025 | WELLMAN ALEXI | Director | A | Common Stock | 13513 | $0.00 | 38,886.0000 | 12,103,750 | 53.26% | 0.11% |
| Oct. 13, 2025 | Quarls Harry | Director | A | Common Stock | 13513 | $0.00 | 13,513.0000 | 12,103,750 | 9999.99% | 0.11% |
| Aug. 18, 2025 | Trivedi Jigish Dhirajlal | COO | A | Common Stock | 275000 | $0.00 | 275,000.0000 | 12,103,750 | 9999.99% | 2.27% |
| Aug. 20, 2025 | Suhadolnik Kate Eileen | Interim CFO | F | Common Stock | 1232 | $1.61 | 28,954.0000 | 12,103,750 | 4.08% | 0.01% |
| Aug. 20, 2025 | Goodman Kelly F. | Interim CEO | F | Common Stock | 4326 | $1.61 | 85,135.0000 | 12,103,750 | 4.84% | 0.04% |
| May 20, 2025 | Goodman Kelly F. | Interim CEO | F | Common Stock | 2164 | $1.96 | 89,461.0000 | 12,103,750 | 2.36% | 0.02% |
| May 20, 2025 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 2741 | $1.96 | 109,392.0000 | 12,103,750 | 2.44% | 0.02% |
| April 13, 2025 | Goodman Kelly F. | Interim CEO | A | Common Stock | 36930 | $0.00 | 91,625.0000 | 12,103,750 | 67.52% | 0.31% |
| May 20, 2023 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 100 | $18.00 | 82,729.0000 | 0 | 0.12% | 0.00% |
| Aug. 20, 2023 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 106 | $18.15 | 82,623.0000 | 0 | 0.13% | 0.00% |
| Nov. 20, 2023 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 4298 | $17.55 | 78,325.0000 | 0 | 5.20% | 0.00% |
| Feb. 20, 2024 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 1044 | $13.67 | 77,281.0000 | 0 | 1.33% | 0.00% |
| May 20, 2024 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 1886 | $12.15 | 75,395.0000 | 0 | 2.44% | 0.00% |
| Aug. 20, 2024 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 1886 | $8.19 | 73,509.0000 | 0 | 2.50% | 0.00% |
| Nov. 20, 2024 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 1889 | $5.21 | 71,620.0000 | 0 | 2.57% | 0.00% |
| Feb. 20, 2025 | Rabb Anthony | Chief Financial Officer | F | Common Stock | 1987 | $4.81 | 69,633.0000 | 0 | 2.77% | 0.00% |
| April 13, 2025 | Rabb Anthony | Chief Financial Officer | A | Common Stock | 42500 | $0.00 | 112,133.0000 | 12,103,750 | 61.03% | 0.35% |
| Feb. 10, 2025 | Goodman Kelly F. | Interim CEO | A | Common Stock | 10000 | $0.00 | 56,184.0000 | 0 | 21.65% | 0.00% |
| Feb. 20, 2025 | Goodman Kelly F. | Interim CEO | F | Common Stock | 1489 | $4.81 | 54,695.0000 | 0 | 2.65% | 0.00% |
| Nov. 18, 2024 | Dresselhuys Eric P. | Chief Executive Officer | P | Common Stock | 1000 | $5.23 | 180,580.0000 | 0 | 0.56% | 0.00% |
| Sept. 11, 2024 | Nijhawan Sandeep | Director | S | Common Stock | 7000 | $5.72 | 15,537.0000 | 0 | 31.06% | 0.00% |
| Aug. 29, 2024 | NIGGLI MICHAEL R | Director | M | Common Stock | 11852 | $6.88 | 153,083.0000 | 0 | 8.39% | 0.00% |
| Aug. 30, 2024 | Teamey Kyle | Director | P | Common Stock | 142 | $6.73 | 25,227.0000 | 0 | 0.57% | 0.00% |
| Aug. 29, 2024 | NIGGLI MICHAEL R | Director | M | Stock Option (right to buy) | 11852 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 17, 2024 | WELLMAN ALEXI | Director | A | Common Stock | 202702 | $0.00 | 380,633.0000 | 0 | 113.92% | 0.00% |
| May 17, 2024 | Teamey Kyle | Director | A | Common Stock | 202702 | $0.00 | 376,311.0000 | 0 | 116.76% | 0.00% |
| May 17, 2024 | Quarls Harry | Director | A | Common Stock | 202702 | $0.00 | 626,158.0000 | 0 | 47.87% | 0.00% |
| May 17, 2024 | Nijhawan Sandeep | Director | A | Common Stock | 202702 | $0.00 | 338,075.0000 | 0 | 149.74% | 0.00% |
| May 17, 2024 | NIGGLI MICHAEL R | Director | A | Common Stock | 202702 | $0.00 | 2,088,527.0000 | 0 | 10.75% | 0.00% |
| May 17, 2024 | Garabedian Raffi | Director | A | Common Stock | 202702 | $0.00 | 392,429.0000 | 0 | 106.84% | 0.00% |
| May 17, 2024 | Hossfeld Rich | Director | A | Common Stock | 202702 | $0.00 | 215,202.0000 | 0 | 1621.62% | 0.00% |
| May 15, 2024 | Hossfeld Rich | Director | D | Common Stock | 135373 | $0.00 | 12,500.0000 | 0 | 91.55% | 0.00% |
| May 14, 2024 | Teamey Kyle | Director | P | Common Stock | 1250 | $0.79 | 173,609.0000 | 0 | 0.73% | 0.00% |
| May 10, 2024 | Quarls Harry | Director | P | Common Stock | 57310 | $0.79 | 423,456.0000 | 0 | 15.65% | 0.00% |
| May 9, 2024 | Quarls Harry | Director | P | Common Stock | 42690 | $0.84 | 366,146.0000 | 0 | 13.20% | 0.00% |
| March 7, 2024 | Dresselhuys Eric P. | Chief Executive Officer | A | Common Stock | 622771 | $0.00 | 2,718,239.0000 | 0 | 29.72% | 0.00% |
| March 15, 2024 | Hossfeld Rich | Director | P | Common Stock | 2300 | $0.73 | 147,873.0000 | 0 | 1.58% | 0.00% |
| March 15, 2024 | Hossfeld Rich | Director | P | Common Stock | 200 | $0.73 | 145,573.0000 | 0 | 0.14% | 0.00% |
| Feb. 15, 2024 | Rabb Anthony | Chief Financial Officer | A | Common Stock | 550000 | $0.00 | 1,242,468.0000 | 0 | 79.43% | 0.00% |
| March 13, 2023 | Rabb Anthony | Chief Financial Officer | A | Common Stock | 76452 | $0.00 | 692,468.0000 | 0 | 12.41% | 0.00% |