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Phathom Pharmaceuticals
PHAT

Overview Fund Activity

137 hedge funds and large institutions have $401M invested in Phathom Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 47 increasing their positions, 36 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
137
Holders Change
-7
Holders Change %
-4.86%
% of All Funds
1.86%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
25
Increased
47
Reduced
36
Closed
31
Calls
$915K
Puts
$688K
Net Calls
+$227K
Net Calls Change
+$4.97M

Top Buyers

1
TCM
Tang Capital Management
California
$7.52M
2
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
$3.74M
3
Citigroup
Citigroup
New York
$3.33M
4
Millennium Management
Millennium Management
New York
$3.28M
5
6CM
683 Capital Management
New York
$9.06M

Top Sellers

1
CC
Checkpoint Capital
California
$0
2
DC
Decheng Capital
California
$0
3
SL
Siren LLC
Connecticut
$0
4
Raymond James Financial
Raymond James Financial
Florida
$0
5
APM
Avidity Partners Management
Texas
$5.02M
Name Holding Trade Value Shares
Change 		Shares
Change %
Millennium Management
26
Millennium Management
New York
$3.28M +$2.91M +463,372 +772%
Fidelity Investments
27
Fidelity Investments
Massachusetts
$3.2M -$1.83M -291,819 -36%
SG
28
StepStone Group
California
$2.65M – – –
TI
29
Trexquant Investment
Connecticut
$2.5M +$126K +20,114 +5%
Northern Trust
30
Northern Trust
Illinois
$2.42M -$71.1K -11,341 -3%
Charles Schwab
31
Charles Schwab
California
$2.18M -$31.4K -5,003 -1%
Marshall Wace
32
Marshall Wace
United Kingdom
$1.97M +$1.36M +216,805 +221%
Wellington Management Group
33
Wellington Management Group
Massachusetts
$1.26M +$406K +64,695 +48%
Goldman Sachs
34
Goldman Sachs
New York
$1.18M -$1.41M -224,388 -54%
Citadel Advisors
35
Citadel Advisors
Florida
$1.13M +$675K +107,714 +150%
Bank of America
36
Bank of America
North Carolina
$1.07M +$23.7K +3,776 +2%
Susquehanna International Group
37
Susquehanna International Group
Pennsylvania
$1.01M -$466K -74,266 -32%
JPMorgan Chase & Co
38
JPMorgan Chase & Co
New York
$861K +$3.05K +486 +0.4%
Bank of New York Mellon
39
Bank of New York Mellon
New York
$718K +$73.9K +11,787 +11%
AQR Capital Management
40
AQR Capital Management
Connecticut
$673K +$563K +89,741 +508%
NL
41
Nuveen LLC
North Carolina
$637K +$637K +101,520 New
State of Wisconsin Investment Board
42
State of Wisconsin Investment Board
Wisconsin
$626K -$204K -32,493 -25%
UBS AM
43
UBS AM
Illinois
$625K -$113K -18,059 -15%
Two Sigma Investments
44
Two Sigma Investments
New York
$610K -$2.44M -388,463 -80%
XT
45
XTX Topco
Cayman Islands
$565K +$565K +90,191 New
ECM
46
ExodusPoint Capital Management
New York
$497K +$497K +79,311 New
Swiss National Bank
47
Swiss National Bank
Switzerland
$460K – – –
PMAM
48
Penn Mutual Asset Management
Pennsylvania
$394K – – –
Los Angeles Capital Management
49
Los Angeles Capital Management
California
$377K +$244K +38,986 +185%
Creative Planning
50
Creative Planning
Kansas
$376K +$230K +36,694 +158%
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