Michael R. Niggli

Insider Reports History

Location
101 Ash Street Hq18, San Diego, CA
Signature
/s/ Kate Suhadolnik, by power of attorney
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Michael R. Niggli:

Stock Role Class Num Shares Value Price $ Report Date Ownership
PG&E Corp Director Common Stock 58.8K $1.03M $17.53 May 17, 2024 Direct
ESS Tech, Inc. Director Common Stock 90.8K $116K $1.28 Oct 13, 2025 Direct

Insider Reports Filed by Michael R. Niggli

Symbol Company Period Transactions Value $ Form Type Date Filed Role
GWH ESS Tech, Inc. Oct 13, 2025 1 $0 4 Oct 15, 2025 Director
GWH ESS Tech, Inc. Aug 29, 2024 2 $81.5K 4 Sep 3, 2024 Director
PCG PG&E Corp May 17, 2024 1 $0 4 May 21, 2024 Director
GWH ESS Tech, Inc. May 17, 2024 1 $0 4 May 17, 2024 Director
PCG PG&E Corp May 19, 2023 1 $0 4 May 23, 2023 Director
GWH ESS Tech, Inc. May 19, 2023 1 $0 4 May 22, 2023 Director
GWH ESS Tech, Inc. May 16, 2023 1 $8.1K 4 May 17, 2023 Director
GWH ESS Tech, Inc. May 12, 2023 1 $22.6K 4 May 15, 2023 Director
GWH ESS Tech, Inc. Mar 6, 2023 1 $8.25K 4 Mar 7, 2023 Director
GWH ESS Tech, Inc. Dec 15, 2022 1 $48.9K 4 Dec 16, 2022 Director
GWH ESS Tech, Inc. Jun 1, 2022 1 $0 4 Jun 3, 2022 Director
PCG PG&E Corp May 19, 2022 1 $0 4 May 23, 2022 Director
GWH ESS Tech, Inc. Mar 1, 2022 1 $100K 4 Mar 3, 2022 Director
GWH ESS Tech, Inc. Nov 9, 2021 2 $778K 4 Nov 17, 2021 Director
GWH ESS Tech, Inc. Nov 9, 2021 6 $1.44M 4 Nov 12, 2021 Director
GWH ESS Tech, Inc. Oct 8, 2021 0 $0 3 Oct 18, 2021 Director
PCG PG&E Corp May 20, 2021 1 $0 4 May 24, 2021 Director