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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
1
$58.5M
2
$38.5M
3
$34.7M
4
$29.9M
5
$28.2M
6
$17.1M
7
$16.2M
8
$10.3M
9
$9.05M
10
$8.34M
11
$8.25M
12
$8.12M
13
$7.51M
14
$7.01M
15
$6.93M
16
$6.85M
17
$5.06M
18
$4.88M
19
$4.83M
20
$4.41M
21
$4.07M
22
$4.07M
23
$3.75M
24
$3.75M
25
$3.67M