PRIMECAP MANAGEMENT CO/CA/ - ARENA PHARMACEUTICALS INC ownership

ARENA PHARMACEUTICALS INC's ticker is ARNA and the CUSIP is 040047607. A total of 237 filers reported holding ARENA PHARMACEUTICALS INC in Q1 2021. The put-call ratio across all filers is 0.58 and the average weighting 0.2%.

Quarter-by-quarter ownership
PRIMECAP MANAGEMENT CO/CA/ ownership history of ARENA PHARMACEUTICALS INC
ValueSharesWeighting
Q4 2021$40,510,000
+38.3%
435,870
-11.4%
0.03%
+33.3%
Q3 2021$29,287,000
-13.6%
491,800
-1.0%
0.02%
-8.7%
Q2 2021$33,882,000
-3.1%
496,800
-1.4%
0.02%
-4.2%
Q1 2021$34,979,000
-11.0%
504,090
-1.4%
0.02%
-17.2%
Q4 2020$39,299,000
-1.0%
511,500
-3.6%
0.03%
-12.1%
Q3 2020$39,691,000
+13.7%
530,700
-4.3%
0.03%
+10.0%
Q2 2020$34,910,000
+43.3%
554,570
-4.4%
0.03%
+25.0%
Q1 2020$24,360,000
-58.5%
580,000
-55.1%
0.02%
-44.2%
Q4 2019$58,637,000
-6.2%
1,291,000
-5.5%
0.04%
-14.0%
Q3 2019$62,522,000
-30.1%
1,366,000
-10.4%
0.05%
-24.2%
Q2 2019$89,422,000
+36.4%
1,525,200
+4.3%
0.07%
+37.5%
Q1 2019$65,550,000
+15.0%
1,462,200
-0.1%
0.05%
+4.3%
Q4 2018$57,023,000
+25.4%
1,464,000
+48.1%
0.05%
+48.4%
Q3 2018$45,486,000988,3990.03%
Other shareholders
ARENA PHARMACEUTICALS INC shareholders Q1 2021
NameSharesValueWeighting ↓
Prosight Management, LP 163,133$7,467,0004.14%
PFM Health Sciences, LP 2,271,536$103,968,0003.07%
Partner Investment Management, L.P. 28,877$1,322,0002.26%
Atika Capital Management LLC 181,000$8,284,0001.74%
DAFNA Capital Management LLC 93,942$4,300,0001.62%
Asymmetry Capital Management, L.P. 16,272$745,0001.60%
First Light Asset Management, LLC 190,838$8,735,0001.32%
Perceptive Advisors 953,129$43,624,0001.18%
Rhenman & Partners Asset Management AB 155,000$7,094,0000.89%
Opus Point Partners Management, LLC 9,770$447,0000.81%
View complete list of ARENA PHARMACEUTICALS INC shareholders