Willard Dere

Insider Reports History

Location
Novato, CA
Signature
/s/ Willard Dere
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 Willard Dere:

Company Role Class Num Shares Value Price $ Report Date Ownership
BIOMARIN PHARMACEUTICAL INC Director Common Stock 38,950 $2,453,071 $62.98 20 May 2025 Direct
Mersana Therapeutics, Inc. Director Common Stock 0 $0 $28.14 06 Jan 2026 Direct
Seres Therapeutics, Inc. Director Stock Option (right to buy) 100,000 10 Apr 2025 Direct
Metagenomi, Inc. Director Stock Option (Right to Buy) 21,000 10 Jun 2025 Direct
Mersana Therapeutics, Inc. Director Stock Option (right to buy) 0 06 Jan 2026 Direct
Radius Health, Inc. Director Common Stock 0 $10.00 15 Aug 2022 Direct
Radius Health, Inc. Director Stock Option (Right to Buy) 0 $4.16 15 Aug 2022 Direct

Insider Reports Filed by Willard Dere

Symbol Company Period Transactions Value $ Form Type Role Filing Time
MRSN Mersana Therapeutics, Inc. 06 Jan 2026 13 $0 4 Director 06 Jan 2026, 16:52
MRSN Mersana Therapeutics, Inc. 12 Jun 2025 1 $0 4 Director 13 Jun 2025, 17:02
MGX Metagenomi, Inc. 10 Jun 2025 1 $0 4 Director 12 Jun 2025, 16:36
BMRN BIOMARIN PHARMACEUTICAL INC 20 May 2025 1 $0 4 Director 22 May 2025, 16:54
MCRB Seres Therapeutics, Inc. 10 Apr 2025 1 $0 4 Director 11 Apr 2025, 16:05
MRSN Mersana Therapeutics, Inc. 11 Jun 2024 1 $0 4 Director 12 Jun 2024, 16:51
BMRN BIOMARIN PHARMACEUTICAL INC 21 May 2024 1 $0 4 Director 23 May 2024, 17:20
MCRB Seres Therapeutics, Inc. 04 Apr 2024 1 $0 4 Director 08 Apr 2024, 16:45
MGX Metagenomi, Inc. 01 Apr 2024 1 $0 4 Director 03 Apr 2024, 20:11
MGX Metagenomi Technologies, LLC 08 Feb 2024 0 $0 3 Director 08 Feb 2024, 19:11
MRSN Mersana Therapeutics, Inc. 02 Jan 2024 1 $0 4 Director 04 Jan 2024, 16:11
MRSN Mersana Therapeutics, Inc. 02 Oct 2023 1 $0 4 Director 04 Oct 2023, 16:30
MRSN Mersana Therapeutics, Inc. 03 Jul 2023 1 $0 4 Director 06 Jul 2023, 16:19
MCRB Seres Therapeutics, Inc. 22 Jun 2023 1 $0 4 Director 23 Jun 2023, 17:21
MRSN Mersana Therapeutics, Inc. 08 Jun 2023 2 $0 4 Director 12 Jun 2023, 16:13
BMRN BIOMARIN PHARMACEUTICAL INC 23 May 2023 1 $0 4 Director 24 May 2023, 18:24
MRSN Mersana Therapeutics, Inc. 03 Apr 2023 1 $0 4 Director 05 Apr 2023, 17:12
RDUS Radius Health, Inc. 15 Aug 2022 3 -$267,950 4 Director 15 Aug 2022, 16:16
MCRB Seres Therapeutics, Inc. 05 Jul 2022 1 +$100,000 4 Director 06 Jul 2022, 19:22
MCRB Seres Therapeutics, Inc. 22 Jun 2022 1 $0 4 Director 24 Jun 2022, 16:30
MRSN Mersana Therapeutics, Inc. 09 Jun 2022 1 $0 4 Director 10 Jun 2022, 16:20
BMRN BIOMARIN PHARMACEUTICAL INC 24 May 2022 1 $0 4 Director 26 May 2022, 20:29
RDUS Radius Health, Inc. 14 Jan 2022 2 $0 4 Director 25 Jan 2022, 15:30
MRSN Mersana Therapeutics, Inc. 03 Jan 2022 1 $0 4 Director 05 Jan 2022, 16:01
MCRB Seres Therapeutics, Inc. 16 Jun 2021 1 $0 4 Director 21 Jun 2021, 16:30
MRSN Mersana Therapeutics, Inc. 11 Jun 2021 1 $0 4 Director 15 Jun 2021, 18:03
BMRN BIOMARIN PHARMACEUTICAL INC 25 May 2021 1 $0 4 Director 27 May 2021, 17:20