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Phathom Pharmaceuticals

137 hedge funds and large institutions have $401M invested in Phathom Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 47 increasing their positions, 37 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

less ownership

Funds ownership:

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

23% less first-time investments, than exits

New positions opened: 24 | Existing positions closed: 31

26% less capital invested

Capital invested by funds: $541M → $401M (-$140M)

Holders
137
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$915K
Puts
$688K
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1
$63.4M
2
$46.8M
3
$44.2M
4
$22.9M
5
$21.9M
6
$20.8M
7
$17.4M
8
$15.8M
9
$12.3M
10
$10.7M
11
$9.06M
12
$7.52M
13
$7.32M
14
$7.12M
15
$7.09M
16
$6.92M
17
$6.37M
18
$5.65M
19
$5.02M
20
$4.71M
21
$4.44M
22
$4.28M
23
$3.74M
24
$3.57M
25
$3.33M