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Amphastar Pharmaceuticals

129 hedge funds and large institutions have $522M invested in Amphastar Pharmaceuticals in 2020 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 42 increasing their positions, 53 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
129
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
Puts
Net Calls
Net Calls Change

Top Buyers

1 +$9.76M
2 +$4.84M
3 +$4.73M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$1.37M
5
Prudential Financial
Prudential Financial
New Jersey
+$1.22M

Top Sellers

1 -$5.45M
2 -$3.54M
3 -$2.37M
4
Two Sigma Advisers
Two Sigma Advisers
New York
-$2.33M
5
AL
AJO LP
Pennsylvania
-$2.01M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$2.32M
27
$2.13M
28
$2.07M
29
$2.03M
30
$2.02M
31
$2.02M
32
$1.81M
33
$1.73M
34
$1.66M
35
$1.62M
36
$1.47M
37
$1.41M
38
$1.25M
39
$1.11M
40
$1.11M
41
$1.02M
42
$1.02M
43
$1.02M
44
$949K
45
$865K
46
$835K
47
$826K
48
$740K
49
$737K
50
$710K