MARSHALL WACE, LLP - AMPHASTAR PHARMACEUTICALS IN ownership

AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 211 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2022. The put-call ratio across all filers is 0.20 and the average weighting 0.1%.

Quarter-by-quarter ownership
MARSHALL WACE, LLP ownership history of AMPHASTAR PHARMACEUTICALS IN
ValueSharesWeighting
Q1 2023$2,407,839
+170.5%
64,209
+102.9%
0.01%
+150.0%
Q3 2022$890,000
-10.0%
31,638
+11.2%
0.00%0.0%
Q2 2022$989,000
+58.2%
28,441
+63.3%
0.00%
+100.0%
Q1 2022$625,000
-79.0%
17,417
-86.8%
0.00%
-95.2%
Q2 2020$2,970,000
-33.7%
132,228
-56.2%
0.02%
-53.3%
Q1 2020$4,481,000
-21.0%
301,910
+2.7%
0.04%
+15.4%
Q4 2019$5,673,000
-30.8%
294,064
-28.8%
0.04%
-39.1%
Q3 2019$8,196,000413,2930.06%
Other shareholders
AMPHASTAR PHARMACEUTICALS IN shareholders Q4 2022
NameSharesValueWeighting ↓
Campbell & CO Investment Adviser LLC 11,961$219,0000.13%
FEDERATED HERMES, INC. 3,441,367$63,046,0000.12%
CORNERCAP INVESTMENT COUNSEL INC 54,751$1,003,0000.11%
GSA CAPITAL PARTNERS LLP 34,425$631,0000.10%
First Trust Direct Indexing L.P. 11,913$218,0000.06%
Summit Global Investments 47,546$871,0000.06%
WINTON GROUP Ltd 49,766$912,0000.05%
FULLER & THALER ASSET MANAGEMENT, INC. 397,950$7,290,0000.05%
AIGEN INVESTMENT MANAGEMENT, LP 16,077$295,0000.04%
EXCHANGE TRADED CONCEPTS, LLC 52,334$959,0000.04%
View complete list of AMPHASTAR PHARMACEUTICALS IN shareholders