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Phathom Pharmaceuticals

117 hedge funds and large institutions have $551M invested in Phathom Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 43 increasing their positions, 37 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed

more capital invested

Capital invested by funds: $ → $

more call options, than puts

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

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

9.71% less ownership

Funds ownership: 91.94%82.22% (-9.7%)

15% less funds holding

Funds holding: 137117 (-20)

53% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 36

Holders
117
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
$15.4M
Puts
$12.1M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
26
$2.94M
27
$2.57M
28
$1.85M
29
$1.8M
30
$1.73M
31
$1.51M
32
$1.49M
33
$1.33M
34
$1.29M
35
$1.16M
36
$1.06M
37
$921K
38
$871K
39
$788K
40
$619K
41
$608K
42
$602K
43
$549K
44
$485K
45
$479K
46
$448K
47
$425K
48
$386K
49
$364K
50
$309K