Logo image of PHAT

PHATHOM PHARMACEUTICALS INC (PHAT) Stock Ownership and Short Interest

USA - NASDAQ:PHAT - US71722W1071 - Common Stock

13.55 USD
+0.24 (+1.8%)
Last: 10/31/2025, 8:07:40 PM
13.55 USD
0 (0%)
After Hours: 10/31/2025, 8:07:40 PM
PHAT Ownership Chart.PHAT Ownership Chart: showing Insider, Institutional ownership and shares available to the public.PHAT Ownership.InsiderInstitutionalPublic



Shares Outstanding70.94M
Float55.14M
Float Short Interest Percentage25.62%
Owners (insider)1.99%
Owners (institutional)65.5%
Owners (insider) change1.93%
Owners (institutional) change-1.78%
PHAT Institutional Ownership HistoryPHAT Institutional Ownership HistoryPHAT Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M
PHAT Historical Insider Transactions ChartPHAT Historical Insider Buy and Sell Transactions ChartPHAT Historical Insider Transactions Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 0 50K 100K 150K
Date Name Type Shares Price Amount
Oct 6, 2025 Narula Sanjeev Grant 144000 0.00 $ 0.00
Sep 25, 2025 Basta Steven L Option Excercise 90000 0.00 $ 0.00
Sep 25, 2025 Basta Steven L Option Excercise 48375 11.66 $ 564,052.50
Sep 5, 2025 Breedlove Robert Charles Open Market Sale 461 12.09 $ 5,573.49
Jul 16, 2025 Breedlove Robert Charles Open Market Sale 1692 8.36 $ 14,151.72
Jun 3, 2025 COLA MICHAEL F Grant 10500 0.00 $ 0.00
Jun 3, 2025 Topper James N Grant 10500 0.00 $ 0.00
Jun 3, 2025 FIELDS HEIDI Grant 10500 0.00 $ 0.00
Jun 3, 2025 Stenhouse Mark Grant 10500 0.00 $ 0.00
Jun 3, 2025 Parikh Asit Grant 10500 0.00 $ 0.00
Jun 3, 2025 KARBE FRANK Grant 10500 0.00 $ 0.00
May 21, 2025 Topper James N Open Market Purchase 3780 3.86 $ 14,609.32
May 13, 2025 Topper James N Open Market Purchase 7420 3.30 $ 24,462.49
May 9, 2025 Topper James N Open Market Purchase 48203 3.17 $ 152,916.63
May 6, 2025 Parikh Asit Open Market Purchase 10000 2.50 $ 24,984.50
Apr 16, 2025 Schroeder Theodore R Grant 21000 0.00 $ 0.00
Apr 7, 2025 Henderson Molly Open Market Sale 3678 4.55 $ 16,739.68
Mar 13, 2025 Parikh Asit Open Market Purchase 10000 4.42 $ 44,200.00
Feb 27, 2025 Henderson Molly Grant 72000 0.00 $ 0.00
Feb 27, 2025 Nabulsi Azmi Grant 79200 0.00 $ 0.00
Jan 21, 2025 Henderson Molly Open Market Sale 6583 6.59 $ 43,370.78
Jan 21, 2025 Nabulsi Azmi Open Market Sale 7886 6.59 $ 51,956.91
Jan 21, 2025 Curran Terrie Open Market Sale 19109 6.59 $ 125,884.36
Dec 19, 2024 Nabulsi Azmi Open Market Sale 1118 8.00 $ 8,944.00
Dec 19, 2024 Henderson Molly Open Market Sale 1291 8.00 $ 10,328.00
Dec 13, 2024 KARBE FRANK Open Market Purchase 12500 7.93 $ 99,083.75
Dec 13, 2024 Parikh Asit Open Market Purchase 10000 8.12 $ 81,248.00