PHAT icon

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 %
FLSM
1
Frazier Life Sciences Management
California
$120M +$22.6M +2,357,210 +23%
MVM
2
Medicxi Ventures Management
Jersey
$71.6M – – –
Invesco
3
Invesco
Georgia
$39.7M +$4.69M +489,260 +13%
CG
4
Carlyle Group
District of Columbia
$33.5M – – –
BlackRock
5
BlackRock
New York
$31.8M -$79.2K -8,255 -0.2%
Vanguard Group
6
Vanguard Group
Pennsylvania
$26.7M +$82.7K +8,624 +0.3%
Ensign Peak Advisors
7
Ensign Peak Advisors
Utah
$24.2M +$54.5K +5,688 +0.2%
Millennium Management
8
Millennium Management
New York
$21.6M +$16.6M +1,727,134 +330%
6CM
9
683 Capital Management
New York
$20.2M +$6.33M +660,000 +46%
NMC
10
NEA Management Company
Maryland
$18.8M – – –
WA
11
Wasatch Advisors
Utah
$14M -$2.3M -239,732 -14%
CP
12
Catalys Pacific
Japan
$11.2M – – –
Geode Capital Management
13
Geode Capital Management
Massachusetts
$10.3M +$513K +53,504 +5%
APM
14
Avidity Partners Management
Texas
$10.2M +$2.54M +264,500 +33%
GKIM
15
GW&K Investment Management
Massachusetts
$10.1M -$535K -55,836 -5%
PBM
16
Propel Bio Management
California
$8.85M -$2.03M -212,000 -19%
State Street
17
State Street
Massachusetts
$8.15M -$498K -51,930 -6%
CCM
18
Catalio Capital Management
New York
$6.45M +$6.45M +672,290 New
MCM
19
Moore Capital Management
New York
$5.75M +$5.75M +600,000 New
SAM
20
Simplify Asset Management
Nevada
$5.01M -$1.53M -160,000 -23%
Citigroup
21
Citigroup
New York
$4.96M -$131K -13,612 -3%
SG
22
StepStone Group
California
$4.05M – – –
UBS Group
23
UBS Group
Switzerland
$4.02M -$2.76M -288,105 -41%
Charles Schwab
24
Charles Schwab
California
$3.45M +$116K +12,125 +3%
Northern Trust
25
Northern Trust
Illinois
$3.45M -$262K -27,299 -7%
1
2 3 4 5