Martin H. Huber Jr.

Insider Reports History

Location
Cambridge, MA
Signature
/s/ Michael A. Metzger, as Attorney-in-Fact
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 Martin H. Huber Jr.:

Company Role Class Num Shares Value Price $ Report Date Ownership
Syndax Pharmaceuticals Inc Director Common Stock 103,000 $2,164,030 $21.01 04 Feb 2026 Direct
Mersana Therapeutics, Inc. President, CEO, Director Restricted Stock Unit 13,340 $105,212 $0.5800 11 Sep 2025 Direct
Mersana Therapeutics, Inc. President, CEO, Director Common Stock 0 $0 $28.14 06 Jan 2026 Direct
Xilio Therapeutics, Inc. PRESIDENT AND HEAD OF R&D Stock Option (right to buy) 136,500 16 Aug 2023 Direct
Mersana Therapeutics, Inc. President, CEO, Director Restricted Stock Units 0 06 Jan 2026 Direct
Mersana Therapeutics, Inc. President, CEO, Director Stock Option (right to buy) 0 06 Jan 2026 Direct

Insider Reports Filed by Martin H. Huber Jr.

Symbol Company Period Transactions Value $ Form Type Role Filing Time
SNDX Syndax Pharmaceuticals Inc 04 Feb 2026 1 $0 4 Director 06 Feb 2026, 16:55
MRSN Mersana Therapeutics, Inc. 06 Jan 2026 19 $0 4 President, CEO, Director 06 Jan 2026, 16:47
MRSN Mersana Therapeutics, Inc. 11 Sep 2025 3 -$14,708 4 President, CEO, Director 15 Sep 2025, 16:26
SNDX Syndax Pharmaceuticals Inc 19 May 2025 1 +$44,950 4 Director 19 May 2025, 16:02
SNDX Syndax Pharmaceuticals Inc 05 Feb 2025 1 $0 4 Director 07 Feb 2025, 16:34
MRSN Mersana Therapeutics, Inc. 15 Jan 2025 5 -$2,618 4 President, CEO, Director 17 Jan 2025, 19:21
MRSN Mersana Therapeutics, Inc. 11 Sep 2024 3 -$88,744 4 President, CEO, Director 13 Sep 2024, 17:08
SNDX Syndax Pharmaceuticals Inc 07 Feb 2024 1 $0 4 Director 09 Feb 2024, 16:04
MRSN Mersana Therapeutics, Inc. 15 Jan 2024 2 $0 4 President, CEO, Director 17 Jan 2024, 17:19
MRSN Mersana Therapeutics, Inc. 02 Oct 2023 1 $0 4 President, CEO, Director 04 Oct 2023, 16:31
MRSN Mersana Therapeutics, Inc. 11 Sep 2023 2 $0 4 President, CEO, Director 13 Sep 2023, 16:01
XLO Xilio Therapeutics, Inc. 16 Aug 2023 1 $0 4 PRESIDENT AND HEAD OF R&D 18 Aug 2023, 20:30
MRSN Mersana Therapeutics, Inc. 03 Jul 2023 1 $0 4 Director 06 Jul 2023, 16:23
MRSN Mersana Therapeutics, Inc. 08 Jun 2023 2 $0 4 Director 12 Jun 2023, 16:16
MRSN Mersana Therapeutics, Inc. 03 Apr 2023 1 $0 4 Director 05 Apr 2023, 17:15
SNDX Syndax Pharmaceuticals Inc 02 Feb 2023 1 $0 4 Director 03 Feb 2023, 15:56
XLO Xilio Therapeutics, Inc. 01 Jan 2023 1 $0 4 PRESIDENT AND HEAD OF R&D 04 Jan 2023, 15:11
XLO Xilio Therapeutics, Inc. 15 Jun 2022 1 $0 4/A PRESIDENT AND HEAD OF R&D 23 Jun 2022, 19:30
MRSN Mersana Therapeutics, Inc. 09 Jun 2022 1 $0 4 Director 10 Jun 2022, 16:18
XLO Xilio Therapeutics, Inc. 22 Feb 2022 1 $0 4 PRESIDENT OF R&D AND CMO 24 Feb 2022, 16:30
SNDX Syndax Pharmaceuticals Inc 02 Feb 2022 1 $0 4 Director 03 Feb 2022, 16:28
MRSN Mersana Therapeutics, Inc. 03 Jan 2022 1 $0 4 Director 05 Jan 2022, 16:05
XLO Xilio Therapeutics, Inc. 21 Oct 2021 1 $0 4 President of R&D and CMO 25 Oct 2021, 17:17
XLO Xilio Therapeutics, Inc. 21 Oct 2021 0 $0 3 President of R&D and CMO 21 Oct 2021, 20:40
SNDX Syndax Pharmaceuticals Inc 15 Sep 2021 1 +$677,600 4 Director 17 Sep 2021, 16:32
SNDX Syndax Pharmaceuticals Inc 15 Sep 2021 0 $0 3 Director 17 Sep 2021, 16:31
MRSN Mersana Therapeutics, Inc. 11 Jun 2021 1 $0 4 Director 15 Jun 2021, 18:01