ESS Tech, Inc. (GWH)

Latest Insider Confidence Score

2026Q1

49.5
Bearish

Company insider confidence (by quarter)

2025Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Niggli Michael R 90,825 Oct 15, 2025
Goodman Kelly F. Officer 80,622 Nov 21, 2025
Garabedian Raffi 39,672 Oct 15, 2025
Wellman Alexi 38,886 Oct 15, 2025
Teamey Kyle 38,740 Oct 15, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 20, 2026 Feb 26, 2026 Suhadolnik Kate Eileen CFO Sell 52.5 -741 -0.45% $1.1K
Feb 20, 2026 Feb 26, 2026 Goodman Kelly F. Officer Sell 47.5 -2,269 -1.04% $3.5K
Feb 13, 2026 Feb 26, 2026 Suhadolnik Kate Eileen CFO Neutral 90.0 +137,500 497.20% -
Feb 13, 2026 Feb 26, 2026 Goodman Kelly F. Officer Neutral 90.0 +137,500 170.55% -
Jan 28, 2026 Jan 29, 2026 Buckley Drew P CEO Neutral 52.5 - 0.00% -
Jan 29, 2026 Buckley Drew P CEO Neutral 52.5 - 0.00% -
Nov 20, 2025 Nov 21, 2025 Suhadolnik Kate Eileen CFO Sell 47.5 -1,299 -4.49% $3.1K
Nov 20, 2025 Nov 21, 2025 Goodman Kelly F. CEO Sell 46.3 -4,513 -5.30% $10.8K
Oct 13, 2025 Oct 15, 2025 NIGGLI MICHAEL R Director Neutral 90.0 +13,513 17.48% -
Oct 13, 2025 Oct 15, 2025 WELLMAN ALEXI Director Neutral 90.0 +13,513 53.26% -
Oct 13, 2025 Oct 15, 2025 Quarls Harry Director Neutral 90.0 +13,513 100.00% -
Oct 13, 2025 Oct 15, 2025 Nijhawan Sandeep Director Neutral 90.0 +13,513 86.97% -
Oct 13, 2025 Oct 15, 2025 Garabedian Raffi Director Neutral 90.0 +13,513 51.66% -
Oct 13, 2025 Oct 15, 2025 Hossfeld Rich Director Neutral 90.0 +13,513 94.19% -
Oct 13, 2025 Oct 15, 2025 Teamey Kyle Director Neutral 90.0 +13,513 53.57% -