Baker Bros. Advisors’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
-751,927
Closed -$72.9M 114
2019
Q3
$72.9M Hold
751,927
0.5% 18
2019
Q2
$77M Hold
751,927
0.52% 19
2019
Q1
$85.6M Sell
751,927
-632,203
-46% -$46.5M 0.55% 19
2018
Q4
$54.2M Hold
1,384,130
0.44% 21
2018
Q3
$75.5M Hold
1,384,130
0.5% 23
2018
Q2
$115M Hold
1,384,130
0.86% 12
2018
Q1
$92.2M Hold
1,384,130
0.78% 16
2017
Q4
$71.2M Hold
1,384,130
0.62% 17
2017
Q3
$123M Buy
1,384,130
+65,789
+5% +$5M 1% 11
2017
Q2
$78.8M Hold
1,318,341
0.69% 13
2017
Q1
$70.3M Hold
1,318,341
0.58% 16
2016
Q4
$65.8M Hold
1,318,341
0.64% 17
2016
Q3
$79.2M Hold
1,318,341
0.72% 15
2016
Q2
$67.4M Buy
1,318,341
+55,959
+4% +$2.39M 0.71% 15
2016
Q1
$37.3M Hold
1,262,382
0.39% 28
2015
Q4
$57.2M Hold
1,262,382
0.47% 26
2015
Q3
$52.7M Hold
1,262,382
0.49% 23
2015
Q2
$76.1M Sell
1,262,382
-65,069
-5% -$4.3M 0.67% 20
2015
Q1
$103M Buy
+1,327,451
New +$76.4M 0.86% 15