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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
51
$356K
52
$345K
53
$329K
54
$287K
55
$286K
56
$282K
57
$268K
58
$262K
59
$261K
60
$229K
61
$221K
62
$208K
63
$195K
64
$187K
65
$186K
66
$181K
67
$178K
68
$170K
69
$170K
70
$167K
71
$165K
72
$160K
73
$153K
74
$149K
75
$145K