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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 25 funds opening new positions, 47 increasing their positions, 36 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)

19% less first-time investments, than exits

New positions opened: 25 | 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
RhumbLine Advisers
51
RhumbLine Advisers
Massachusetts
$356K
Barclays
52
Barclays
United Kingdom
$345K
Commonwealth Equity Services
53
Commonwealth Equity Services
Massachusetts
$329K
Balyasny Asset Management
54
Balyasny Asset Management
Illinois
$287K
AllianceBernstein
55
AllianceBernstein
Tennessee
$286K
VIA
56
Virtus Investment Advisers
Connecticut
$282K
ACM
57
ADAR1 Capital Management
Texas
$268K
Russell Investments Group
58
Russell Investments Group
United Kingdom
$262K
GGHC
59
Gilder Gagnon Howe & Co
New York
$261K
Legal & General Group
60
Legal & General Group
United Kingdom
$229K
California State Teachers Retirement System (CalSTRS)
61
California State Teachers Retirement System (CalSTRS)
California
$221K
HF
62
HRT Financial
New York
$208K
SFWA
63
Summit Financial Wealth Advisors
Louisiana
$195K
KCP
64
Kera Capital Partners
California
$187K
OAM
65
Occidental Asset Management
California
$186K
NRD
66
Nebula Research & Development
New York
$181K
Wells Fargo
67
Wells Fargo
California
$178K
Deutsche Bank
68
Deutsche Bank
Germany
$170K
T. Rowe Price Associates
69
T. Rowe Price Associates
Maryland
$170K
EGM
70
Engineers Gate Manager
New York
$167K
SPA
71
Sherbrooke Park Advisers
New York
$165K
KeyBank National Association
72
KeyBank National Association
Ohio
$160K
MIM
73
MetLife Investment Management
New Jersey
$153K
US Bancorp
74
US Bancorp
Minnesota
$149K
Mirae Asset Global ETFs Holdings
75
Mirae Asset Global ETFs Holdings
Hong Kong
$145K