James N. Topper

Insider Reports History

Location
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:

Company Role Class Num Shares Value Price $ Report Date Ownership
NewAmsterdam Pharma Co N.V. Director Ordinary Shares 3,801,000 $91,033,950 $23.95 15 Sep 2025 By Frazier Lifesciences Sponsor LLC
NewAmsterdam Pharma Co N.V. Director Ordinary Shares 3,028,524 $71,761,784 $23.70 15 Sep 2025 By Frazier Life Sciences X, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 5,827,415 $19,288,743 $3.31 03 Jun 2025 By Frazier Life Sciences IX, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 59,403 $196,623 $3.31 03 Jun 2025 By Frazier Life Sciences X, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 42,596 $140,992 $3.31 03 Jun 2025 Direct
ANAPTYSBIO, INC Director, 10%+ Owner Restricted Stock Unit 3,900 $85,059 $21.81 06 Jan 2023 Direct
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 3,912 $12,948 $3.31 03 Jun 2025 By Topper Group III LLC
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Common Stock 1 $3 $3.31 03 Jun 2025 By FHMLS IX, L.L.C.
ALPINE IMMUNE SCIENCES, INC. Director Common Stock 0 $0 $6.33 18 May 2024 By Frazier Life Sciences VIII, L.P.
Phathom Pharmaceuticals, Inc. Director, 10%+ Owner Stock Option (Right to Buy) 17,500 03 Jun 2025 Direct
ANAPTYSBIO, INC Director, 10%+ Owner Stock Option (right to buy) 10,600 06 Jan 2023 Direct
ALPINE IMMUNE SCIENCES, INC. Director Stock Option (Right to buy) 0 20 May 2024 Direct
ALPINE IMMUNE SCIENCES, INC. Director Warrant (Right to Buy) 0 25 Apr 2024 By: Frazier Life Sciences VIII, L.P.

Insider Reports Filed by James N. Topper

Symbol Company Period Transactions Value $ Form Type Role Filing Time
NAMS NewAmsterdam Pharma Co N.V. 15 Sep 2025 1 +$15,639 4 Director 17 Sep 2025, 17:22
NAMS NewAmsterdam Pharma Co N.V. 08 Sep 2025 1 +$31,487 4 Director 10 Sep 2025, 17:19
NAMS NewAmsterdam Pharma Co N.V. 11 Aug 2025 1 +$11,294 4 Director 13 Aug 2025, 16:49
NAMS NewAmsterdam Pharma Co N.V. 24 Jun 2025 2 +$69,466 4 Director 26 Jun 2025, 19:41
NAMS NewAmsterdam Pharma Co N.V. 16 Jun 2025 1 +$167,381 4 Director 18 Jun 2025, 16:42
PHAT Phathom Pharmaceuticals, Inc. 03 Jun 2025 2 $0 4 Director, 10%+ Owner 05 Jun 2025, 16:56
PHAT Phathom Pharmaceuticals, Inc. 21 May 2025 1 +$14,609 4 Director 23 May 2025, 16:06
PHAT Phathom Pharmaceuticals, Inc. 13 May 2025 2 +$24,462 4 Director 15 May 2025, 16:17
PHAT Phathom Pharmaceuticals, Inc. 09 May 2025 3 +$152,917 4 Director 13 May 2025, 16:13
NAMS NewAmsterdam Pharma Co N.V. 26 Mar 2025 1 +$25,521 4 Director 28 Mar 2025, 17:36
NAMS NewAmsterdam Pharma Co N.V. 04 Mar 2025 1 +$84,203 4 Director 06 Mar 2025, 17:32
PHAT Phathom Pharmaceuticals, Inc. 23 May 2024 2 $0 4 Director, 10%+ Owner 24 May 2024, 19:47
/report/000162619924000097-topper-james-n-2024-05-18 ALPINE IMMUNE SCIENCES, INC. 18 May 2024 8 $0 4 Director 20 May 2024, 20:10
/report/000141588924011664-topper-james-n-2024-04-25 ALPINE IMMUNE SCIENCES, INC. 25 Apr 2024 3 -$26.83 4 Director 29 Apr 2024, 16:32
NAMS NewAmsterdam Pharma Co N.V. 26 Mar 2024 1 +$181,224 4 Director 28 Mar 2024, 16:30
/report/000162619924000011-topper-james-n-2024-01-02 ALPINE IMMUNE SCIENCES, INC. 02 Jan 2024 1 $0 4 Director 04 Jan 2024, 19:03
NAMS NewAmsterdam Pharma Co N.V. 29 Dec 2023 0 $0 3 Director 29 Dec 2023, 16:30
/report/000120919123058530-topper-james-n-2023-12-11 ALPINE IMMUNE SCIENCES, INC. 11 Dec 2023 2 +$1,850,498 4 Director 13 Dec 2023, 17:30
PHAT Phathom Pharmaceuticals, Inc. 25 May 2023 2 $0 4 Director, 10%+ Owner 30 May 2023, 19:03
ANAB ANAPTYSBIO, INC 06 Jan 2023 2 $0 4 Director, 10%+ Owner 10 Jan 2023, 18:13
/report/000162619923000020-topper-james-n-2023-01-03 ALPINE IMMUNE SCIENCES, INC. 03 Jan 2023 1 $0 4 Director 05 Jan 2023, 18:00
PHAT Phathom Pharmaceuticals, Inc. 22 Sep 2022 1 $0 4 Director, 10%+ Owner 26 Sep 2022, 16:09
ANAB ANAPTYSBIO, INC 10 Feb 2022 1 $0 4 Director, 10%+ Owner 14 Feb 2022, 15:51
/report/000162619922000010-topper-james-n-2022-01-03 ALPINE IMMUNE SCIENCES, INC. 03 Jan 2022 1 $0 4 Director, 10%+ Owner 04 Jan 2022, 16:28