James N. Topper

Insider Reports History

Location
550 Hamilton Avenue, Suite 100, Palo Alto, CA
Signature
/s/ Steve R. Bailey, Attorney-in-Fact For James N. Topper
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 James N. Topper:

Stock Role Class Num Shares Value Price $ Report Date Ownership
NewAmsterdam Pharma Co N.V. Director Ordinary Shares 3.8M $91M $23.95 Aug 11, 2025 By Frazier Lifesciences Sponsor LLC
NewAmsterdam Pharma Co N.V. Director Ordinary Shares 3.03M $72.6M $23.98 Aug 11, 2025 By Frazier Life Sciences X, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 5.83M $19.3M $3.31 Jun 3, 2025 By Frazier Life Sciences IX, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 59.4K $197K $3.31 Jun 3, 2025 By Frazier Life Sciences X, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 42.6K $141K $3.31 Jun 3, 2025 Direct
ANAPTYSBIO, INC Director, 10%+ Owner Restricted Stock Unit 3.9K $85.1K $21.81 Jan 6, 2023 Direct
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 3.91K $12.9K $3.31 Jun 3, 2025 By Topper Group III LLC
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 1 $3.00 $3.31 Jun 3, 2025 By FHMLS IX, L.L.C.
ALPINE IMMUNE SCIENCES, INC. Director Common Stock 0 $0 $6.33 May 18, 2024 By Frazier Life Sciences VIII, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Stock Option (Right to Buy) 17.5K Jun 3, 2025 Direct
ANAPTYSBIO, INC Director, 10%+ Owner Stock Option (right to buy) 10.6K Jan 6, 2023 Direct
ALPINE IMMUNE SCIENCES, INC. Director Stock Option (Right to buy) 0 May 20, 2024 Direct
ALPINE IMMUNE SCIENCES, INC. Director Warrant (Right to Buy) 0 Apr 25, 2024 By: Frazier Life Sciences VIII, L.P.

Insider Reports Filed by James N. Topper

Symbol Company Period Transactions Value $ Form Type Date Filed Role
NAMS NewAmsterdam Pharma Co N.V. Sep 15, 2025 1 $15.6K 4 Sep 17, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Sep 8, 2025 1 $31.5K 4 Sep 10, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Aug 11, 2025 1 $11.3K 4 Aug 13, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Jun 24, 2025 2 $69.5K 4 Jun 26, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Jun 16, 2025 1 $167K 4 Jun 18, 2025 Director
PHAT Phathom Pharmaceuticals, Inc. Jun 3, 2025 2 $0 4 Jun 5, 2025 Director, 10%+ Owner
PHAT Phathom Pharmaceuticals, Inc. May 21, 2025 1 $14.6K 4 May 23, 2025 Director
PHAT Phathom Pharmaceuticals, Inc. May 13, 2025 2 $24.5K 4 May 15, 2025 Director
PHAT Phathom Pharmaceuticals, Inc. May 9, 2025 3 $153K 4 May 13, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Mar 26, 2025 1 $25.5K 4 Mar 28, 2025 Director
NAMS NewAmsterdam Pharma Co N.V. Mar 4, 2025 1 $84.2K 4 Mar 6, 2025 Director
PHAT Phathom Pharmaceuticals, Inc. May 23, 2024 2 $0 4 May 24, 2024 Director, 10%+ Owner
ALPN ALPINE IMMUNE SCIENCES, INC. May 18, 2024 8 $0 4 May 20, 2024 Director
ALPN ALPINE IMMUNE SCIENCES, INC. Apr 25, 2024 3 -$27 4 Apr 29, 2024 Director
NAMS NewAmsterdam Pharma Co N.V. Mar 26, 2024 1 $181K 4 Mar 28, 2024 Director
ALPN ALPINE IMMUNE SCIENCES, INC. Jan 2, 2024 1 $0 4 Jan 4, 2024 Director
NAMS NewAmsterdam Pharma Co N.V. Dec 29, 2023 0 $0 3 Dec 29, 2023 Director
ALPN ALPINE IMMUNE SCIENCES, INC. Dec 11, 2023 2 $1.85M 4 Dec 13, 2023 Director
PHAT Phathom Pharmaceuticals, Inc. May 25, 2023 2 $0 4 May 30, 2023 Director, 10%+ Owner
ANAB ANAPTYSBIO, INC Jan 6, 2023 2 $0 4 Jan 10, 2023 Director, 10%+ Owner
ALPN ALPINE IMMUNE SCIENCES, INC. Jan 3, 2023 1 $0 4 Jan 5, 2023 Director
PHAT Phathom Pharmaceuticals, Inc. Sep 22, 2022 1 $0 4 Sep 26, 2022 Director, 10%+ Owner
ANAB ANAPTYSBIO, INC Feb 10, 2022 1 $0 4 Feb 14, 2022 Director, 10%+ Owner
ALPN ALPINE IMMUNE SCIENCES, INC. Jan 3, 2022 1 $0 4 Jan 4, 2022 Director, 10%+ Owner