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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
76
$314K
77
$307K
78
$300K
79
$299K
80
$293K
81
$292K
82
$276K
83
$275K
84
$274K
85
$273K
86
$259K
87
$254K
88
$251K
89
$245K
90
$233K
91
$222K
92
$217K
93
$215K
94
$207K
95
$201K
96
$185K
97
$171K
98
$141K
99
$112K
100
$107K