Robeco Institutional Asset Management B.V. - AMPHASTAR PHARMACEUTICALS IN ownership

AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 221 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2022. The put-call ratio across all filers is 12.07 and the average weighting 0.1%.

Quarter-by-quarter ownership
Robeco Institutional Asset Management B.V. ownership history of AMPHASTAR PHARMACEUTICALS IN
ValueSharesWeighting
Q3 2022$1,026,000
-19.2%
36,4970.0%0.00%
-25.0%
Q2 2022$1,270,000
+5.4%
36,497
+8.7%
0.00%
+33.3%
Q1 2022$1,205,00033,5610.00%
Other shareholders
AMPHASTAR PHARMACEUTICALS IN shareholders Q2 2022
NameSharesValueWeighting ↓
LAM GROUP, INC. 128,000$5,886,7205.78%
Beacon Harbor Wealth Advisors, Inc. 103,095$4,7411.58%
Capital Impact Advisors, LLC 15,304$703,8311.18%
Quantedge Capital Pte Ltd 36,389$1,673,5300.91%
Mesirow Institutional Investment Management, Inc. 183,805$8,453,1920.86%
Monashee Investment Management LLC 39,461$1,814,8110.76%
OBERWEIS ASSET MANAGEMENT INC/ 152,500$7,013,4750.74%
Granite Investment Partners, LLC 330,911$15,218,5970.64%
Portolan Capital Management 132,850$6,109,7720.57%
SHAKER INVESTMENTS LLC/OH 20,795$956,3620.53%
View complete list of AMPHASTAR PHARMACEUTICALS IN shareholders