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Amphastar Pharmaceuticals

92 hedge funds and large institutions have $160M invested in Amphastar Pharmaceuticals in 2015 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 37 increasing their positions, 23 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
92
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
$9K
Net Calls
Net Calls Change

Top Sellers

1 -$7.88M
2 -$3.63M
3 -$3.04M
4
Renaissance Technologies
Renaissance Technologies
New York
-$2.17M
5
Two Sigma Investments
Two Sigma Investments
New York
-$2.07M
Name Holding Trade Value Shares
Change
Change in
Stake
101
102
103
104