ONCE

Spark Therapeutics, Inc. Common Stock
ONCE

Overview Fund Activity
Delisted

ONCE was delisted on the 16th of December, 2019.

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184 hedge funds and large institutions have $3.44B invested in Spark Therapeutics, Inc. Common Stock in 2019 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 63 increasing their positions, 56 reducing their positions, and 34 closing their positions.

Holders
184
Holders Change
-10
Holders Change %
-5.15%
% of All Funds
4.04%
Holding in Top 10
23
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+15%
% of All Funds
0.51%
New
24
Increased
63
Reduced
56
Closed
34
Calls
$109M
Puts
$204M
Net Calls
-$95M
Net Calls Change
-$101M

Top Buyers

1
PCM
1
Pentwater Capital Management
Florida
$204M
2
BC
2
Boxer Capital
California
$160M
3
PC
3
Paulson & Co
New York
$139M
4
PAM
4
PSquared Asset Management
Switzerland
$26.2M
5
RA
5
Ramius Advisors
New York
$18.3M

Top Sellers

1
FCM
1
Farallon Capital Management
California
$21.3M
2
Renaissance Technologies
2
Renaissance Technologies
New York
$0
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$29.9M
4
SAM
4
Sandell Asset Management
New York
$14.8M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$24.4M
Name Market Value Shares Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$314M 3,237,616 +59,859 +2%
BlackRock
2
BlackRock
New York
$278M 2,869,885 +113,605 +4%
PCM
3
Pentwater Capital Management
Florida
$204M 2,103,545 +1,323,545 +170%
BC
4
Boxer Capital
California
$160M 1,650,000 +1,050,000 +175%
PC
5
Paulson & Co
New York
$139M 1,437,666 +679,859 +90%
State Street
6
State Street
Massachusetts
$128M 1,324,061 +19,736 +2%
CC
7
Casdin Capital
New York
$83.7M 863,300 -21,500 -2%
AA
8
AQR Arbitrage
Connecticut
$83.2M 857,478 +131,309 +18%
AAM
9
Alpine Associates Management
Florida
$78.4M 808,900 +24,800 +3%
MF
10
Magnetar Financial
Illinois
$75.8M 782,108 -103,091 -12%
BBA
11
Baker Bros. Advisors
New York
$72.9M 751,927 – –
EC
12
EcoR1 Capital
California
$69.3M 714,789 +100,661 +16%
Citadel Advisors
13
Citadel Advisors
Florida
$63.5M 654,852 +22,676 +4%
TAL
14
TIG Advisors LLC
New York
$61.5M 633,734 +34,978 +6%
Adage Capital Partners
15
Adage Capital Partners
Massachusetts
$56.7M 584,332 – –
GF
16
Gabelli Funds
New York
$52.4M 540,240 -82,227 -13%
RSCM
17
Rock Springs Capital Management
Maryland
$49M 505,371 – –
JPMorgan Chase & Co
18
JPMorgan Chase & Co
New York
$48.5M 499,936 -183,079 -27%
Goldman Sachs
19
Goldman Sachs
New York
$47.9M 494,248 -61,546 -11%
Millennium Management
20
Millennium Management
New York
$47.9M 493,633 -169,216 -26%
SI
21
Sofinnova Investments
California
$46.7M 481,270 – –
Geode Capital Management
22
Geode Capital Management
Massachusetts
$45.6M 470,631 +24,262 +5%
Northern Trust
23
Northern Trust
Illinois
$43.5M 448,257 +39,295 +10%
IA
24
IndexIQ Advisors
New York
$40.5M 417,350 -32,135 -7%
GLAM
25
Gardner Lewis Asset Management
Pennsylvania
$35.3M 364,397 -11,000 -3%
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