DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) - AMPHASTAR PHARMACEUTICALS IN ownership

AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 85 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) ownership history of AMPHASTAR PHARMACEUTICALS IN
ValueSharesWeighting
Q2 2015$7,885,000
+17.5%
448,5320.0%0.26%
+21.2%
Q1 2015$6,710,000
-54.7%
448,532
-64.9%
0.22%
-59.2%
Q4 2014$14,821,000
-10.1%
1,276,577
-9.8%
0.53%
-11.5%
Q3 2014$16,486,0001,415,0750.60%
Other shareholders
AMPHASTAR PHARMACEUTICALS IN shareholders Q2 2015
NameSharesValueWeighting ↓
MQS Management LLC 10,935$255,0000.41%
GLOBEFLEX CAPITAL L P 144,692$3,370,0000.34%
CORNERCAP INVESTMENT COUNSEL INC 58,975$1,374,0000.20%
Factorial Partners, LLC 10,900$254,0000.17%
FEDERATED HERMES, INC. 3,464,335$80,684,0000.15%
Campbell & CO Investment Adviser LLC 14,800$345,0000.12%
FULLER & THALER ASSET MANAGEMENT, INC. 611,462$14,241,0000.08%
Summit Global Investments 45,900$1,069,0000.07%
RENAISSANCE GROUP LLC 63,559$1,480,0000.06%
PDT Partners, LLC 33,459$779,0000.06%
View complete list of AMPHASTAR PHARMACEUTICALS IN shareholders