CASTLEARK MANAGEMENT LLC - REPLIGEN CORP ownership

REPLIGEN CORP's ticker is RGEN and the CUSIP is 759916109. A total of 448 filers reported holding REPLIGEN CORP in Q1 2022. The put-call ratio across all filers is 1.28 and the average weighting 0.1%.

Quarter-by-quarter ownership
CASTLEARK MANAGEMENT LLC ownership history of REPLIGEN CORP
ValueSharesWeighting
Q3 2023$4,032,494
+752.5%
25,360
+902.4%
0.20%
+688.5%
Q3 2022$473,000
+97.9%
2,530
+72.1%
0.03%
+100.0%
Q2 2022$239,000
-13.4%
1,4700.0%0.01%
+8.3%
Q1 2022$276,000
-29.0%
1,4700.0%0.01%
-14.3%
Q4 2021$389,000
-8.5%
1,4700.0%0.01%
-12.5%
Q3 2021$425,000
+183.3%
1,470
+96.0%
0.02%
+220.0%
Q2 2021$150,000
+2.7%
7500.0%0.01%0.0%
Q1 2021$146,000
-98.7%
750
-99.3%
0.01%
-99.2%
Q1 2020$10,916,000
+1.0%
113,076
-3.2%
0.65%
+49.5%
Q4 2019$10,807,000
+85.9%
116,831
+54.2%
0.43%
+82.3%
Q3 2019$5,812,000
+161.9%
75,780
+193.5%
0.24%
+178.8%
Q2 2019$2,219,000
-54.8%
25,820
-79.8%
0.08%
-44.8%
Q3 2017$4,905,000
-35.4%
127,998
-30.1%
0.15%
-37.9%
Q2 2017$7,592,000
+120.4%
183,203
+48.1%
0.25%
+123.4%
Q3 2015$3,445,000
-3.2%
123,690
+43.5%
0.11%
+16.8%
Q2 2015$3,559,00086,2250.10%
Other shareholders
REPLIGEN CORP shareholders Q1 2022
NameSharesValueWeighting ↓
12 West Capital Management LP 1,021,641$295,244,00013.47%
Ally Bridge Group (NY) LLC 70,000$20,229,0005.95%
Miura Global Management 85,000$24,564,0003.81%
Conestoga Capital Advisors, LLC 871,390$251,823,0003.48%
Ranger Investment Management 187,723$54,250,0002.90%
AWM Investment Company, Inc. 100,000$28,899,0002.84%
Brown Capital Management 1,017,477$294,041,0002.41%
Stephens Investment Management Group LLC 558,287$161,339,0002.19%
Yorktown Management & Research Co Inc 10,050$2,904,0002.18%
SV Health Investors, LLC 14,541$4,203,0002.06%
View complete list of REPLIGEN CORP shareholders