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Phathom Pharmaceuticals
PHAT

Overview Fund Activity

117 hedge funds and large institutions have $550M invested in Phathom Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 43 increasing their positions, 37 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
117
Holders Change
-20
Holders Change %
-14.6%
% of All Funds
1.57%
Holding in Top 10
6
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.08%
New
18
Increased
43
Reduced
37
Closed
36
Calls
$15.4M
Puts
$12.1M
Net Calls
+$3.22M
Net Calls Change
+$2.99M

Top Buyers

1
FLSM
1
Frazier Life Sciences Management
California
$120M
2
Millennium Management
2
Millennium Management
New York
$21.6M
3
CCM
3
Catalio Capital Management
New York
$6.45M
4
6CM
4
683 Capital Management
New York
$20.2M
5
MCM
5
Moore Capital Management
New York
$5.75M

Top Sellers

1
Jennison Associates
1
Jennison Associates
New York
$0
2
Morgan Stanley
2
Morgan Stanley
New York
$1.49M
3
TCM
3
Tang Capital Management
California
$0
4
WP
4
Woodline Partners
California
$1.8M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$56.4K
Name Holding Trade Value Shares
Change 		Shares
Change %
RIL
151
Rothschild Investment LLC
Illinois
– -$219 -35 Closed
SW
152
SVB Wealth
Massachusetts
– -$213 -34 Closed
3 4 5 6
7