2,902 hedge funds and large institutions have $95B invested in Pfizer in 2025 Q1 according to their latest regulatory filings, with 181 funds opening new positions, 1,268 increasing their positions, 1,189 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 first-time investments, than exits

New positions opened: | Existing positions closed:

less capital invested

Capital invested by funds: $ → $

1.53% less ownership

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

2% less funds holding

Funds holding: 2,9682,902 (-66)

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
1
$13.3B
2
$12B
3
$7.53B
4
$3.18B
5
$2.62B
6
$2.51B
7
$2.04B
8
$1.91B
9
$1.58B
10
$1.42B
11
$1.38B
12
$1.27B
13
$1.22B
14
$1.2B
15
$982M
16
$980M
17
$939M
18
$855M
19
$818M
20
$768M
21
$743M
22
$716M
23
$690M
24
$647M
25
$637M