2,902 hedge funds and large institutions have $95B invested in Pfizer in 2025 Q1 according to their latest regulatory filings, with 177 funds opening new positions, 1,269 increasing their positions, 1,190 reducing their positions, and 190 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less capital invested

Capital invested by funds: $ → $

less first-time investments, than exits

New positions opened: | Existing positions closed:

1.53% less ownership

Funds ownership: 66.09%64.56% (-1.5%)

2% less funds holding

Funds holding: 2,9722,902 (-70)

23% less call options, than puts

Call options by funds: $2.97B | Put options by funds: $3.87B

Holders
2,902
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
43
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.97B
Puts
$3.87B
Net Calls
Net Calls Change

Top Buyers

1 +$920M
2 +$568M
3 +$455M
4
Amundi
Amundi
France
+$383M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$331M

Top Sellers

1 -$2.72B
2 -$925M
3 -$415M
4
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$252M
5
Two Sigma Advisers
Two Sigma Advisers
New York
-$231M
Name Holding Trade Value Shares
Change
Change in
Stake
701
$4.09M
702
$4.09M
703
$4.08M
704
$4.08M
705
$4.04M
706
$4.04M
707
$4.03M
708
$4M
709
$3.99M
710
$3.98M
711
$3.98M
712
$3.97M
713
$3.97M
714
$3.94M
715
$3.93M
716
$3.92M
717
$3.91M
718
$3.91M
719
$3.89M
720
$3.89M
721
$3.89M
722
$3.88M
723
$3.88M
724
$3.86M
725
$3.83M