WESTFIELD CAPITAL MANAGEMENT CO LP - ALKERMES PLC ownership

ALKERMES PLC's ticker is ALKS and the CUSIP is G01767105. A total of 244 filers reported holding ALKERMES PLC in Q1 2022. The put-call ratio across all filers is 0.76 and the average weighting 0.3%.

Quarter-by-quarter ownership
WESTFIELD CAPITAL MANAGEMENT CO LP ownership history of ALKERMES PLC
ValueSharesWeighting
Q3 2023$46,765,860
-35.5%
1,669,613
-27.9%
0.32%
-30.7%
Q2 2023$72,469,203
-28.1%
2,315,310
-35.2%
0.46%
-35.4%
Q1 2023$100,764,253
+13.9%
3,574,468
+5.6%
0.71%
+4.4%
Q4 2022$88,462,331
+76.3%
3,385,470
+50.7%
0.68%
+71.4%
Q3 2022$50,168,000
+18.8%
2,246,654
+58.5%
0.40%
+19.9%
Q2 2022$42,224,000
+6602.2%
1,417,379
+5819.3%
0.33%
+8200.0%
Q1 2022$630,000
-95.9%
23,945
-90.9%
0.00%
-96.9%
Q2 2017$15,234,000
-30.2%
262,795
-29.6%
0.13%
-30.5%
Q1 2017$21,830,000
-4.3%
373,170
-9.1%
0.19%
-6.5%
Q4 2016$22,811,000
-52.4%
410,415
-59.7%
0.20%
-48.3%
Q3 2016$47,900,000
-12.9%
1,018,500
-20.0%
0.39%
-14.8%
Q2 2016$54,997,000
+428.0%
1,272,500
+317.7%
0.45%
+474.7%
Q1 2016$10,416,000
-83.3%
304,638
-78.5%
0.08%
-78.9%
Q1 2014$62,506,000
-60.8%
1,417,702
-63.9%
0.37%
-60.2%
Q4 2013$159,491,000
+34.4%
3,922,548
+11.2%
0.94%
+23.9%
Q3 2013$118,638,000
+31.4%
3,528,800
+12.1%
0.76%
+22.1%
Q2 2013$90,286,0003,148,0300.62%
Other shareholders
ALKERMES PLC shareholders Q1 2022
NameSharesValueWeighting ↓
Sarissa Capital Management LP 14,040,000$313,513,00035.43%
Krensavage Asset Management, LLC 1,411,682$31,523,00010.04%
Prosight Management, LP 502,150$11,213,0006.01%
Hardman Johnston Global Advisors LLC 5,734,259$128,046,0005.76%
13D Management LLC 415,055$9,268,0004.85%
Ally Bridge Group (NY) LLC 300,000$6,699,0004.42%
INTERNATIONAL BIOTECHNOLOGY TRUST PLC 593,000$13,248,0004.25%
GREAT POINT PARTNERS LLC 507,500$11,332,0002.73%
Tamarack Advisers, LP 200,000$4,466,0002.62%
Zebra Capital Management LLC 22,134$494,0001.88%
View complete list of ALKERMES PLC shareholders