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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
101
$92K
102
$71K
103
$62K
104
$57K
105
$48K
106
$24K
107
$21K
108
$21K
109
$19K
110
$13K
111
$11K
112
$9.81K
113
$9K
114
$9K
115
$6K
116
$5K
117
$3.02K
118
$2K
119
$2K
120
$2K
121
$2K
122
$2K
123
$1K
124
$1K
125
$1K