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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
51
$703K
52
$698K
53
$689K
54
$672K
55
$646K
56
$609K
57
$604K
58
$591K
59
$583K
60
$572K
61
$570K
62
$557K
63
$525K
64
$485K
65
$443K
66
$437K
67
$428K
68
$398K
69
$366K
70
$354K
71
$338K
72
$333K
73
$329K
74
$324K
75
$320K