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Amphastar Pharmaceuticals

134 hedge funds and large institutions have $418M invested in Amphastar Pharmaceuticals in 2016 Q3 according to their latest regulatory filings, with 40 funds opening new positions, 60 increasing their positions, 22 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
134
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
$355K
Puts
$448K
Net Calls
Net Calls Change

Top Buyers

1 +$30M
2 +$14.3M
3 +$7.51M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$6.27M
5
State Street
State Street
Massachusetts
+$5.36M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$3.26M
27
$3.03M
28
$3M
29
$2.92M
30
$2.83M
31
$2.8M
32
$2.6M
33
$2.45M
34
$2.31M
35
$2.23M
36
$2.19M
37
$2.03M
38
$1.97M
39
$1.82M
40
$1.81M
41
$1.78M
42
$1.58M
43
$1.55M
44
$1.43M
45
$1.42M
46
$1.38M
47
$1.38M
48
$1.25M
49
$1.18M
50
$1.13M