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2,927 hedge funds and large institutions have $97.4B invested in Pfizer in 2025 Q1 according to their latest regulatory filings, with 179 funds opening new positions, 1,281 increasing their positions, 1,199 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:

more ownership

Funds ownership:

less capital invested

Capital invested by funds: $ → $

6% less first-time investments, than exits

New positions opened: 179 | Existing positions closed: 190

2% less funds holding

Funds holding: 2,9912,927 (-64)

23% less call options, than puts

Call options by funds: $2.98B | Put options by funds: $3.87B

Holders
2,927
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
44
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.98B
Puts
$3.87B
Net Calls
Net Calls Change

Top Buyers

1 +$950M
2 +$587M
3 +$470M
4
Amundi
Amundi
France
+$412M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$342M

Top Sellers

1 -$2.81B
2 -$955M
3 -$429M
4
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$261M
5
Two Sigma Advisers
Two Sigma Advisers
New York
-$239M
Name Holding Trade Value Shares
Change
Change in
Stake
1651
$726K
1652
$724K
1653
$722K
1654
$722K
1655
$720K
1656
$719K
1657
$719K
1658
$718K
1659
$716K
1660
$715K
1661
$714K
1662
$714K
1663
$714K
1664
$714K
1665
$710K
1666
$710K
1667
$709K
1668
$707K
1669
$707K
1670
$707K
1671
$707K
1672
$706K
1673
$706K
1674
$703K
1675
$701K