ESS Tech, Inc. (GWH-WT)

Latest Insider Confidence Score

2025Q4

50.0
Bullish

Company insider confidence (by quarter)

2020Q3 2025Q4

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Softbank Group Corp. 35,953,699 Nov 12, 2021
Breakthrough Energy Ventures, LLC 18,558,721 Nov 12, 2021
Breakthrough Energy Investments Llc 18,558,721 Nov 12, 2021
Song Julia Chief Technology Officer 5,625,277 Oct 19, 2022
Evans Craig E President 5,561,524 Mar 14, 2023

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Aug 18, 2025 Sep 5, 2025 Trivedi Jigish Dhirajlal COO Neutral 90.0 +275,000 100.00% -
Aug 20, 2025 Aug 29, 2025 Suhadolnik Kate Eileen CFO Sell 47.5 -1,232 -4.08% $2K
Aug 28, 2025 Suhadolnik Kate Eileen CFO Neutral 52.5 - 0.00% -
Aug 28, 2025 Trivedi Jigish Dhirajlal COO Neutral 52.5 - 0.00% -
Aug 20, 2025 Aug 21, 2025 Goodman Kelly F. CEO Sell 47.5 -4,326 -4.84% $7K
May 20, 2025 May 22, 2025 Goodman Kelly F. CEO Sell 47.5 -2,164 -2.36% $4.2K
May 20, 2025 May 22, 2025 Rabb Anthony CFO Sell 47.5 -2,741 -2.44% $5.4K
May 20, 2023 Apr 15, 2025 Rabb Anthony CFO Sell 95.0 +29,304 35.38% $151.2K
Apr 13, 2025 Apr 15, 2025 Goodman Kelly F. CEO Neutral 90.0 +36,930 67.52% -
Feb 10, 2025 Apr 4, 2025 Goodman Kelly F. CEO Sell 90.0 +8,511 18.43% $7.2K
Feb 14, 2025 Goodman Kelly F. CEO Neutral 52.5 - 0.00% -
Nov 18, 2024 Nov 18, 2024 Dresselhuys Eric P. CEO Buy 67.5 +1,000 0.56% $5.2K
Sep 11, 2024 Sep 17, 2024 Nijhawan Sandeep Director Sell 26.3 -7,000 -31.06% $40K
Aug 29, 2024 Sep 3, 2024 NIGGLI MICHAEL R Director Neutral 52.5 - 0.00% -
Aug 30, 2024 Sep 3, 2024 Teamey Kyle Director Buy 67.5 +142 0.57% $955.7
May 15, 2024 May 17, 2024 Hossfeld Rich Director Neutral 90.0 +67,329 45.53% -
May 17, 2024 May 17, 2024 Garabedian Raffi Director Neutral 90.0 +202,702 106.84% -
May 17, 2024 May 17, 2024 NIGGLI MICHAEL R Director Neutral 90.0 +202,702 10.75% -
May 17, 2024 May 17, 2024 Nijhawan Sandeep Director Neutral 90.0 +202,702 149.74% -
May 17, 2024 May 17, 2024 Quarls Harry Director Neutral 90.0 +202,702 47.87% -
May 17, 2024 May 17, 2024 Teamey Kyle Director Neutral 90.0 +202,702 116.76% -
May 17, 2024 May 17, 2024 WELLMAN ALEXI Director Neutral 90.0 +202,702 113.92% -
May 14, 2024 May 15, 2024 Teamey Kyle Director Buy 67.5 +1,250 0.73% $987.4
May 10, 2024 May 13, 2024 Quarls Harry Director Buy 91.3 +57,310 15.65% $45K
May 9, 2024 May 9, 2024 Quarls Harry Director Buy 91.3 +42,690 13.20% $35.8K
Mar 7, 2024 May 8, 2024 Dresselhuys Eric P. CEO Neutral 90.0 +622,771 29.72% -
Mar 15, 2024 Mar 18, 2024 Hossfeld Rich Director Buy 77.5 +2,500 1.72% $1.8K
Feb 15, 2024 Feb 16, 2024 Rabb Anthony CFO Neutral 90.0 +550,000 79.43% -
Mar 13, 2023 Feb 16, 2024 Rabb Anthony CFO Neutral 90.0 +76,452 12.41% -
Nov 16, 2023 Nov 16, 2023 Quarls Harry Director Buy 77.5 +5,489 1.73% $6.9K
Nov 15, 2023 Nov 15, 2023 Quarls Harry Director Buy 95.0 +67,118 26.76% $90.3K
Nov 14, 2023 Nov 14, 2023 Quarls Harry Director Buy 95.0 +80,579 47.32% $102.3K
Nov 13, 2023 Nov 13, 2023 Quarls Harry Director Buy 95.0 +46,814 37.92% $51.6K
Nov 13, 2023 Nov 13, 2023 Teamey Kyle Director Buy 67.5 +1,000 0.58% $1.1K
Sep 5, 2023 Sep 6, 2023 Dresselhuys Eric P. CEO Neutral 85.0 +128,617 6.54% -
Aug 28, 2023 Aug 30, 2023 Quarls Harry Director Neutral 90.0 +123,456 100.00% -
Aug 30, 2023 Quarls Harry Director Neutral 52.5 - 0.00% -
May 19, 2023 May 24, 2023 Nijhawan Sandeep Director Neutral 90.0 +135,373 100.00% -
May 24, 2023 Nijhawan Sandeep Director Neutral 52.5 - 0.00% -
May 19, 2023 May 22, 2023 Garabedian Raffi Director Neutral 90.0 +135,373 249.06% -
May 19, 2023 May 22, 2023 NIGGLI MICHAEL R Director Neutral 85.0 +135,373 7.73% -
May 19, 2023 May 22, 2023 Teamey Kyle Director Neutral 90.0 +135,373 376.18% -
May 19, 2023 May 22, 2023 WELLMAN ALEXI Director Neutral 90.0 +135,373 318.09% -
May 19, 2023 May 22, 2023 Hossfeld Rich Director Neutral 90.0 +135,373 1353.73% -
May 16, 2023 May 17, 2023 NIGGLI MICHAEL R Director Buy 67.5 +10,000 0.57% $8.1K
May 16, 2023 May 16, 2023 Hossfeld Rich Director Buy 90.0 +10,000 100.00% $8.1K
May 15, 2023 May 16, 2023 Teamey Kyle Director Buy 90.0 +4,000 12.51% $3.4K
May 12, 2023 May 15, 2023 NIGGLI MICHAEL R Director Buy 78.8 +20,000 1.16% $22.6K
Apr 26, 2023 Apr 26, 2023 Dresselhuys Eric P. CEO Neutral 90.0 +622,771 46.33% -
Mar 13, 2023 Mar 14, 2023 Evans Craig E President Neutral 85.0 +467,694 5.88% -
Mar 13, 2023 Mar 14, 2023 Rabb Anthony CFO Neutral 90.0 +77,949 12.65% -
Mar 6, 2023 Mar 7, 2023 NIGGLI MICHAEL R Director Buy 60.0 +5,000 0.29% $8.3K
Mar 7, 2023 Mar 7, 2023 Teamey Kyle Director Buy 85.0 +2,500 8.48% $4K
Feb 21, 2023 Feb 23, 2023 Dresselhuys Eric P. CEO Sell 26.3 -23,440 -1.71% $47.8K
Feb 21, 2023 Feb 23, 2023 Evans Craig E President Sell 51.3 -10,451 -0.13% $11.3K
Dec 15, 2022 Dec 16, 2022 NIGGLI MICHAEL R Director Buy 78.8 +19,100 1.13% $48.9K
Nov 21, 2022 Nov 22, 2022 Dresselhuys Eric P. CEO Sell 22.5 -14,339 -1.04% $54.8K
Nov 18, 2022 Nov 22, 2022 Evans Craig E President Sell 20.0 -114,567 -1.42% $428.2K
Nov 10, 2022 Rabb Anthony CFO Neutral 52.5 - 0.00% -
Nov 8, 2022 Rabb Anthony CFO Neutral 52.5 - 0.00% -
Nov 7, 2022 Rabb Anthony CFO Neutral 52.5 - 0.00% -
Oct 19, 2022 Oct 20, 2022 Moftakhar Amir CFO Sell 26.3 -8,386 -1.48% $29.2K
Oct 17, 2022 Oct 19, 2022 Evans Craig E President Sell 40.0 -28,968 -0.36% $107.8K
Oct 17, 2022 Oct 19, 2022 Dresselhuys Eric P. CEO Sell 20.0 -110,082 -7.38% $409.5K
Oct 17, 2022 Oct 19, 2022 Moftakhar Amir CFO Sell 22.5 -16,720 -2.86% $62.2K
Oct 17, 2022 Oct 18, 2022 Moftakhar Amir CFO Sell 20.0 -63,205 -9.77% $254.4K
Jun 1, 2022 Jun 3, 2022 Gast Claudia Director Neutral 90.0 +29,486 97.61% -
Jun 1, 2022 Jun 3, 2022 Garabedian Raffi Director Neutral 90.0 +29,486 118.57% -
Jun 1, 2022 Jun 3, 2022 Teamey Kyle Director Neutral 90.0 +29,486 100.00% -
Jun 1, 2022 Jun 3, 2022 Wilson Daryl C Director Neutral 90.0 +29,486 63.60% -
Jun 1, 2022 Jun 3, 2022 NIGGLI MICHAEL R Director Neutral 85.0 +29,486 5.56% -
Jun 1, 2022 Jun 3, 2022 WELLMAN ALEXI Director Neutral 90.0 +29,486 225.57% -
Mar 1, 2022 Mar 3, 2022 NIGGLI MICHAEL R Director Buy 82.5 +20,000 1.21% $100.2K
Feb 17, 2022 Feb 18, 2022 Gast Claudia Director Neutral 90.0 +30,208 100.00% -
Feb 18, 2022 Gast Claudia Director Neutral 52.5 - 0.00% -
Feb 16, 2022 Feb 18, 2022 Dresselhuys Eric P. CEO Neutral 90.0 +622,771 71.65% -
Feb 8, 2022 Feb 9, 2022 Bodner Jeff Chief Accounting Officer Neutral 90.0 +32,934 149.93% -
Feb 8, 2022 Feb 9, 2022 Moftakhar Amir CFO Neutral 90.0 +268,358 70.84% -
Feb 8, 2022 Feb 9, 2022 Evans Craig E President Neutral 85.0 +475,725 6.23% -
Jan 24, 2022 Jan 25, 2022 Evans Craig E President Sell 52.5 -1,342 -0.02% $8.1K
Jan 24, 2022 Jan 25, 2022 Dresselhuys Eric P. CEO Sell 20.0 -59,642 -6.42% $361K
Jan 17, 2022 Jan 19, 2022 Evans Craig E President Neutral 47.5 +2,934 0.04% -
Jan 17, 2022 Jan 19, 2022 Dresselhuys Eric P. CEO Neutral 90.0 +88,031 10.47% -
Jan 4, 2022 Jan 6, 2022 Bodner Jeff Chief Accounting Officer Sell 26.3 -4,225 -16.13% $48.6K
Jan 4, 2022 Jan 6, 2022 Moftakhar Amir CFO Sell 20.0 -37,821 -9.08% $434.9K
Jan 4, 2022 Jan 6, 2022 Evans Craig E President Sell 30.0 -39,597 -0.52% $455.4K
Jan 4, 2022 Jan 6, 2022 Dresselhuys Eric P. CEO Sell 20.0 -52,216 -5.85% $600.5K
Dec 17, 2021 Dec 21, 2021 WELLMAN ALEXI Director Neutral 90.0 +13,072 100.00% -
Dec 17, 2021 Dec 21, 2021 Bodner Jeff Chief Accounting Officer Neutral 90.0 +15,000 134.04% -
Dec 17, 2021 Dec 21, 2021 Dresselhuys Eric P. CEO Neutral 90.0 +762,938 586.61% -
Nov 15, 2021 Nov 17, 2021 Moftakhar Amir CFO Neutral 90.0 +101,026 32.01% -
Nov 9, 2021 Nov 17, 2021 Evans Craig E President Neutral 77.5 +115,610 1.53% -
Nov 9, 2021 Nov 17, 2021 NIGGLI MICHAEL R Director Buy 97.5 +107,875 11.11% $778.2K
Nov 15, 2021 Nov 17, 2021 Bodner Jeff Chief Accounting Officer Neutral 90.0 +11,191 100.00% -
Nov 15, 2021 Nov 17, 2021 Garabedian Raffi Director Neutral 90.0 +24,868 100.00% -
Nov 15, 2021 Nov 17, 2021 Dresselhuys Eric P. CEO Neutral 90.0 +130,059 100.00% -
Nov 15, 2021 Nov 17, 2021 Wilson Daryl C Director Neutral 90.0 +46,364 100.00% -
Nov 9, 2021 Nov 17, 2021 Evans Craig E President Buy 100.0 +730,247 15.87% $7.3M
Nov 9, 2021 Nov 12, 2021 SOFTBANK GROUP CORP Director Neutral 90.0 +4,238,727 13.37% -
Nov 9, 2021 Nov 12, 2021 Breakthrough Energy Ventures, LLC 10% Owner Neutral 85.0 +2,520,847 7.29% -