Renaissance Technologies - 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
Renaissance Technologies ownership history of AMPHASTAR PHARMACEUTICALS IN
ValueSharesWeighting
Q3 2023$27,737
-2.0%
603,100
+22.4%
0.05%
+14.6%
Q2 2023$28,309
+52.0%
492,583
-0.8%
0.04%
+64.0%
Q1 2023$18,630
+48.6%
496,800
+11.0%
0.02%
+47.1%
Q4 2022$12,536
-99.9%
447,400
+3.1%
0.02%0.0%
Q3 2022$12,190,000
-13.9%
433,800
+6.6%
0.02%0.0%
Q2 2022$14,156,000
+27.7%
406,900
+31.8%
0.02%
+30.8%
Q1 2022$11,082,000
+64.2%
308,700
+6.5%
0.01%
+62.5%
Q4 2021$6,749,000
+28.8%
289,800
+5.1%
0.01%
+14.3%
Q3 2021$5,241,000
+5.2%
275,700
+11.6%
0.01%
+16.7%
Q2 2021$4,982,000
+20.5%
247,100
+9.5%
0.01%
+20.0%
Q1 2021$4,133,000
-34.3%
225,600
-27.8%
0.01%
-28.6%
Q4 2020$6,286,000
-11.4%
312,600
-17.4%
0.01%0.0%
Q3 2020$7,093,000
-38.2%
378,300
-26.0%
0.01%
-30.0%
Q2 2020$11,484,000
+4.8%
511,300
-30.8%
0.01%
-9.1%
Q1 2020$10,961,000
-31.8%
738,600
-11.3%
0.01%
-8.3%
Q4 2019$16,069,000
+10.9%
833,000
+14.0%
0.01%0.0%
Q3 2019$14,490,000
+16.7%
730,700
+24.3%
0.01%
+9.1%
Q2 2019$12,413,000
+37.6%
588,000
+33.2%
0.01%
+37.5%
Q1 2019$9,022,000
+46.2%
441,600
+42.4%
0.01%
+14.3%
Q4 2018$6,171,000
+72.3%
310,100
+66.6%
0.01%
+75.0%
Q3 2018$3,581,000
+51.9%
186,100
+30.4%
0.00%
+300.0%
Q2 2018$2,358,000
+143.6%
142,700
+176.6%
0.00%0.0%
Q1 2018$968,000
+326.4%
51,600
+337.3%
0.00%
Q4 2017$227,000
-45.3%
11,800
-46.1%
0.00%
-100.0%
Q3 2016$415,000
-72.9%
21,900
-83.3%
0.00%
-75.0%
Q3 2015$1,531,000
-72.5%
131,000
-58.7%
0.00%
-69.2%
Q2 2015$5,573,000
+201.9%
317,006
+156.9%
0.01%
+225.0%
Q1 2015$1,846,000123,3800.00%
Other shareholders
AMPHASTAR PHARMACEUTICALS IN shareholders Q2 2022
NameSharesValueWeighting ↓
FRIESS ASSOCIATES LLC 97,760$3,401,0005.68%
Nantahala Capital Management 1,000,000$34,790,0001.74%
MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income 341,294$11,874,0001.52%
Portolan Capital Management 274,889$9,563,0000.96%
Quantedge Capital Pte Ltd 121,500$4,227,0000.85%
SHAKER INVESTMENTS LLC/OH 37,117$1,291,0000.82%
GLOBEFLEX CAPITAL L P 72,253$2,514,0000.61%
EAM Investors, LLC 68,855$2,395,0000.58%
Hillsdale Investment Management Inc. 197,738$6,879,0000.55%
Capital Impact Advisors, LLC 13,835$481,0000.44%
View complete list of AMPHASTAR PHARMACEUTICALS IN shareholders