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Amphastar Pharmaceuticals

116 hedge funds and large institutions have $296M invested in Amphastar Pharmaceuticals in 2017 Q1 according to their latest regulatory filings, with 12 funds opening new positions, 49 increasing their positions, 40 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

31% less call options, than puts

Call options by funds: $286K | Put options by funds: $416K

57% less first-time investments, than exits

New positions opened: 12 | Existing positions closed: 28

Holders
116
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
$286K
Puts
$416K
Net Calls
Net Calls Change

Top Buyers

1 +$80M
2 +$9.06M
3 +$4.89M
4
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$3.77M
5
State Street
State Street
Massachusetts
+$1.54M

Top Sellers

1 -$14.7M
2 -$13.5M
3 -$4.34M
4
Prudential Financial
Prudential Financial
New Jersey
-$3.79M
5
EI
EAM Investors
California
-$3.19M
Name Holding Trade Value Shares
Change
Change in
Stake
1
$80M
2
$31.6M
3
$15.4M
4
$15.4M
5
$15.2M
6
$9.06M
7
$8.28M
8
$7.87M
9
$7.54M
10
$7.51M
11
$6.9M
12
$6.47M
13
$5.22M
14
$5.16M
15
$4.4M
16
$4.21M
17
$3.14M
18
$2.95M
19
$2.86M
20
$2.86M
21
$2.73M
22
$2.19M
23
$2.18M
24
$2.17M
25
$1.66M