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Trade Date*
Filing Date*
Insider Name
Buy/Sell
Company Name
Ticker
Price*
Amount
Shares Change
Jun 24, 2025
Jun 26, 2025
Topper James N
Dir
Buy
Newamsterdam Pharma Co N.V.
NAMS
$18.38
$69,466
+0.06%
Jun 16, 2025
Jun 18, 2025
Topper James N
Dir
Buy
Newamsterdam Pharma Co N.V.
NAMS
$19.5
$167,381
+0.13%
May 21, 2025
May 23, 2025
Topper James N
Dir
Buy
Phathom Pharmaceuticals, Inc.
PHAT
$3.86
$14,609
+0.06%
May 13, 2025
May 15, 2025
Topper James N
Dir
Buy
Phathom Pharmaceuticals, Inc.
PHAT
$3.3
$24,462
+0.13%
May 09, 2025
May 13, 2025
Topper James N
Dir
Buy
Phathom Pharmaceuticals, Inc.
PHAT
$3.17
$152,917
+0.81%
Mar 26, 2025
Mar 28, 2025
Topper James N
Dir
Buy
Newamsterdam Pharma Co N.V.
NAMS
$22.49
$25,521
+0.02%
Mar 04, 2025
Mar 06, 2025
Topper James N
Dir
Buy
Newamsterdam Pharma Co N.V.
NAMS
$21.02
$84,203
+0.06%
Apr 25, 2024
Apr 29, 2024
Topper James N
Dir
Sell
Alpine Immune Sciences, Inc.
ALPN
$64.57
$1,227
-0.00%
Mar 26, 2024
Mar 28, 2024
Topper James N
Dir
Buy
Newamsterdam Pharma Co N.V.
NAMS
$21.5
$181,224
+0.12%
Dec 11, 2020
Dec 11, 2020
Topper James N
CEO
Buy
Frazier Lifesciences Acquisition Corp
FLAC
$10
$10M
+50.00%
Jan 18, 2019
Jan 22, 2019
Topper James N
Dir
10%
Buy
Alpine Immune Sciences, Inc.
ALPN
$5.37
$2M
+12.65%
Sep 28, 2018
Oct 03, 2018
Topper James N
Dir
10%
Buy
Entasis Therapeutics Holdings Inc.
ETTX
$15
$6M
+21.78%
Jun 25, 2018
Jun 26, 2018
Topper James N
Dir
10%
Buy
Aptinyx Inc.
APTX
$16
$2M
+4.49%
Nov 06, 2017
Nov 07, 2017
Topper James N
Dir
10%
Buy
Allena Pharmaceuticals, Inc.
ALNA
$14
$7M
+13.05%
Feb 14, 2017
Feb 16, 2017
Topper James N
Dir
10%
Buy
Sierra Oncology, Inc.
SRRA
$1.35
$8M
+42.21%
Jan 31, 2017
Jan 31, 2017
Topper James N
Dir
10%
Buy
Anaptysbio Inc
ANAB
$15
$6M
+57.32%
Jul 21, 2015
Jul 21, 2015
Topper James N
Dir
Buy
Pronai Therapeutics Inc
DNAI
$17
$4M
+9.14%