NIGGLI MICHAEL R has filed 6 insider transactions across 2 companies since May 2023.
Most recent transaction: a grant/award of 13513 shares of ESS Tech, Inc. ($GWH) on October 13, 2025.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct. 13, 2025 | ESS Tech, Inc. | $GWH | NIGGLI MICHAEL R | Director | A | Common Stock | 13513 | $0.00 | 90,825.0000 | 12,103,750 | 17.48% | 0.11% |
| Aug. 29, 2024 | ESS Tech, Inc. | $GWH | NIGGLI MICHAEL R | Director | M | Common Stock | 11852 | $6.88 | 153,083.0000 | 0 | 8.39% | 0.00% |
| Aug. 29, 2024 | ESS Tech, Inc. | $GWH | NIGGLI MICHAEL R | Director | M | Stock Option (right to buy) | 11852 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 17, 2024 | PG&E Corp | $PCG | NIGGLI MICHAEL R | Director | A | Common Stock | 9677 | $0.00 | 58,845.7300 | 0 | 19.68% | 0.00% |
| May 17, 2024 | ESS Tech, Inc. | $GWH | NIGGLI MICHAEL R | Director | A | Common Stock | 202702 | $0.00 | 2,088,527.0000 | 0 | 10.75% | 0.00% |
| May 19, 2023 | PG&E Corp | $PCG | NIGGLI MICHAEL R | Director | A | Common Stock | 10836 | $0.00 | 49,149.0000 | 0 | 28.28% | 0.00% |