2,847 hedge funds and large institutions have $92.3B invested in Pfizer in 2025 Q4 according to their latest regulatory filings, with 294 funds opening new positions, 1,065 increasing their positions, 1,252 reducing their positions, and 167 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:

less capital invested

Capital invested by funds: $ → $

15% less funds holding in top 10

Funds holding in top 10: 3429 (-5)

15% less repeat investments, than reductions

Existing positions increased: 1,065 | Existing positions reduced: 1,252

19% less call options, than puts

Call options by funds: $2.58B | Put options by funds: $3.18B

Holders
2,847
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
29
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.58B
Puts
$3.18B
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
+$182M

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
Robeco Institutional Asset Management
51
Robeco Institutional Asset Management
Netherlands
$246M
AQR Capital Management
52
AQR Capital Management
Connecticut
$245M
Squarepoint
53
Squarepoint
New York
$241M
Bank of Montreal
54
Bank of Montreal
Ontario, Canada
$240M
Diamond Hill Capital Management
55
Diamond Hill Capital Management
Ohio
$235M
Stifel Financial
56
Stifel Financial
Missouri
$231M
Fidelity International
57
Fidelity International
Bermuda
$230M
California State Teachers Retirement System (CalSTRS)
58
California State Teachers Retirement System (CalSTRS)
California
$229M
KBC Group
59
KBC Group
Belgium
$229M
RhumbLine Advisers
60
RhumbLine Advisers
Massachusetts
$219M
Janus Henderson Group
61
Janus Henderson Group
United Kingdom
$219M
Envestnet Asset Management
62
Envestnet Asset Management
Illinois
$215M
BIP
63
Brandes Investment Partners
California
$215M
Balyasny Asset Management
64
Balyasny Asset Management
Illinois
$213M
DekaBank Deutsche Girozentrale
65
DekaBank Deutsche Girozentrale
Germany
$208M
New York State Common Retirement Fund
66
New York State Common Retirement Fund
New York
$198M
Neuberger Berman Group
67
Neuberger Berman Group
New York
$183M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
68
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$179M
PNC Financial Services Group
69
PNC Financial Services Group
Pennsylvania
$179M
SLAM
70
Swiss Life Asset Management
$170M
SAG
71
Susquehanna Advisors Group
Pennsylvania
$169M
Canada Life
72
Canada Life
Manitoba, Canada
$166M
AllianceBernstein
73
AllianceBernstein
Tennessee
$164M
Pzena Investment Management
74
Pzena Investment Management
New York
$163M
Prudential Financial
75
Prudential Financial
New Jersey
$161M