Group One Trading’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2019
Q4
Sell
-220,700
Closed -$21.4M 5942
2019
Q3
$21.4M Buy
220,700
+86,800
+65% +$8.69M 0.17% 100
2019
Q2
$13.7M Sell
133,900
-21,200
-14% -$2.29M 0.12% 162
2019
Q1
$17.7M Buy
155,100
+103,700
+202% +$7.62M 0.2% 84
2018
Q4
$2.01M Sell
51,400
-2,700
-5% -$117K 0.02% 1037
2018
Q3
$2.95M Buy
54,100
+33,700
+165% +$2.3M 0.02% 890
2018
Q2
$1.69M Sell
20,400
-54,000
-73% -$4.17M 0.01% 1272
2018
Q1
$4.95M Buy
74,400
+37,200
+100% +$2.15M 0.05% 478
2017
Q4
$1.91M Buy
37,200
+2,500
+7% +$180K 0.01% 1214
2017
Q3
$3.09M Buy
34,700
+24,400
+237% +$1.85M 0.03% 786
2017
Q2
$615K Sell
10,300
-6,200
-38% -$346K 0.01% 1820
2017
Q1
$880K Buy
16,500
+6,700
+68% +$398K 0.01% 1424
2016
Q4
$489K Sell
9,800
-2,800
-22% -$150K ﹤0.01% 1789
2016
Q3
$757K Sell
12,600
-20,900
-62% -$1.2M 0.01% 1485
2016
Q2
$1.71M Buy
33,500
+32,900
+5,483% +$1.41M 0.02% 905
2016
Q1
$18K Sell
600
-2,000
-77% -$63.1K ﹤0.01% 3805
2015
Q4
$118K Sell
2,600
-123,000
-98% -$6.45M ﹤0.01% 2883
2015
Q3
$5.24M Buy
125,600
+111,900
+817% +$5.84M 0.07% 340
2015
Q2
$826K Buy
13,700
+8,500
+163% +$562K 0.01% 1372
2015
Q1
$403K Buy
+5,200
New +$299K 0.01% 1789