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2,903 hedge funds and large institutions have $93B invested in Pfizer in 2025 Q4 according to their latest regulatory filings, with 325 funds opening new positions, 1,075 increasing their positions, 1,266 reducing their positions, and 171 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more ownership

Funds ownership:

more capital invested

Capital invested by funds: $ → $

11% less funds holding in top 10

Funds holding in top 10: 3531 (-4)

15% less repeat investments, than reductions

Existing positions increased: 1,075 | Existing positions reduced: 1,266

19% less call options, than puts

Call options by funds: $2.6B | Put options by funds: $3.2B

Holders
2,903
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.6B
Puts
$3.2B
Net Calls
Net Calls Change

Top Buyers

1 +$362M
2 +$342M
3 +$189M
4
Capital World Investors
Capital World Investors
California
+$184M
5
Goldman Sachs
Goldman Sachs
New York
+$183M

Top Sellers

1 -$450M
2 -$223M
3 -$211M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$167M
5
Jane Street
Jane Street
New York
-$146M
Name Holding Trade Value Shares
Change
Change in
Stake
Twin Tree Management
2926
Twin Tree Management
Texas
AC
2927
Arrow Capital
Australia
OC
2928
Optimas Capital
Hong Kong
ERSOT
2929
Employees Retirement System of Texas
Texas
MAG
2930
Members Advisory Group
New York
SCM
2931
Stevens Capital Management
Pennsylvania
Qube Research & Technologies (QRT)
2932
Qube Research & Technologies (QRT)
United Kingdom
CPRC
2933
Consolidated Portfolio Review Corp
New York
AAMU
2934
APG Asset Management US
New York
BSG
2935
Black Swift Group
Colorado
ET
2936
Entropy Technologies
New York
HKIM
2937
Hayek Kallen Investment Management
Alabama
PP
2938
Prospector Partners
Connecticut
OAM
2939
Oxford Asset Management
United Kingdom
HI
2940
Humankind Investments
New York
BAM
2941
Bastion Asset Management
Canada
SC
2942
SummitTX Capital
Texas
ACM
2943
Ategra Capital Management
Virginia
P
2944
Pitcairn
Pennsylvania
TCM
2945
Tang Capital Management
California
NSEDCP
2946
NJ State Employees Deferred Compensation Plan
New Jersey
ZIG
2947
Zuckerman Investment Group
Illinois
VIM
2948
Vista Investment Management
Pennsylvania
FSA
2949
Financial Sense Advisors
California
CM
2950
CM Management
Florida