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Amphastar Pharmaceuticals

168 hedge funds and large institutions have $678M invested in Amphastar Pharmaceuticals in 2021 Q4 according to their latest regulatory filings, with 38 funds opening new positions, 62 increasing their positions, 48 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
168
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
$291K
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1
$167M
2
$80.7M
3
$57.5M
4
$41.2M
5
$33.5M
6
$22.7M
7
$16.6M
8
$16.2M
9
$14.4M
10
$14.2M
11
$13.7M
12
$12.3M
13
$9.83M
14
$9.69M
15
$8.64M
16
$8.59M
17
$8.26M
18
$6.75M
19
$6.54M
20
$6.45M
21
$6.08M
22
$5.87M
23
$5.87M
24
$5.82M
25
$4.97M