Spark Investment Management LLC - PTC THERAPEUTICS INC ownership

PTC THERAPEUTICS INC's ticker is PTCT and the CUSIP is 69366J200. A total of 121 filers reported holding PTC THERAPEUTICS INC in Q2 2016. The put-call ratio across all filers is 0.38 and the average weighting 0.1%.

Quarter-by-quarter ownership
Spark Investment Management LLC ownership history of PTC THERAPEUTICS INC
ValueSharesWeighting
Q1 2020$379,000
-95.3%
8,500
-94.9%
0.20%
-78.5%
Q4 2019$7,987,000
+20.4%
166,300
-15.2%
0.94%
+10.4%
Q3 2019$6,632,000
-45.6%
196,100
-27.6%
0.85%
+0.4%
Q2 2019$12,186,000
-42.8%
270,800
-52.2%
0.84%
-14.3%
Q1 2019$21,304,000
+71.5%
566,000
+56.4%
0.99%
+15.2%
Q4 2018$12,420,000
+5.7%
361,900
+44.8%
0.86%
+27.2%
Q3 2018$11,750,000
-15.8%
250,000
-39.6%
0.67%
-17.7%
Q2 2018$13,960,000
-21.3%
413,900
-36.9%
0.82%
-27.8%
Q1 2018$17,737,000
+2.5%
655,500
-36.8%
1.13%
+22.2%
Q4 2017$17,300,000
+20.6%
1,037,200
+44.7%
0.93%
+20.5%
Q3 2017$14,347,000
+190.0%
717,000
+165.7%
0.77%
+152.1%
Q2 2017$4,947,000
+1053.1%
269,900
+519.0%
0.30%
+1029.6%
Q1 2017$429,000
-75.7%
43,600
-84.1%
0.03%
-84.8%
Q1 2016$1,765,000
+211.3%
274,100
+1466.3%
0.18%
+147.2%
Q4 2015$567,000
+179.3%
17,500
+124.4%
0.07%
+125.0%
Q1 2014$203,000
-10.2%
7,800
-26.4%
0.03%
-38.5%
Q3 2013$226,00010,6000.05%
Other shareholders
PTC THERAPEUTICS INC shareholders Q2 2016
NameSharesValueWeighting ↓
RTW INVESTMENTS, LP 7,235,196$162,140,7423.42%
Camber Capital Management LP 3,400,000$76,1942.51%
ARMISTICE CAPITAL, LLC 6,150,000$137,821,5002.11%
GREAT POINT PARTNERS LLC 500,000$11,205,0002.04%
COWEN AND COMPANY, LLC 799,511$17,917,0411.25%
GEORGE KAISER FAMILY FOUNDATION 45,816$6,491,2111.22%
SPHERA FUNDS MANAGEMENT LTD. 218,459$4,895,6660.89%
SECTORAL ASSET MANAGEMENT INC 187,016$4,191,0290.82%
Nebula Research & Development LLC 21,858$489,8380.26%
Phocas Financial Corp. 64,701$1,450,0000.21%
View complete list of PTC THERAPEUTICS INC shareholders