GROUP ONE TRADING, L.P. - CASTLIGHT HEALTH INC ownership

CASTLIGHT HEALTH INC's ticker is CSLT and the CUSIP is 14862Q100. A total of 97 filers reported holding CASTLIGHT HEALTH INC in Q1 2021. The put-call ratio across all filers is 0.16 and the average weighting 0.3%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of CASTLIGHT HEALTH INC
ValueSharesWeighting
Q4 2020$1,0004000.0%0.00%
Q3 2020$0
-100.0%
400
-75.0%
0.00%
Q4 2018$3,000
-85.0%
1,600
-78.3%
0.00%
Q3 2018$20,000
+233.3%
7,390
+392.7%
0.00%
Q3 2016$6,000
-85.0%
1,500
-87.5%
0.00%
-100.0%
Q1 2016$40,000
+3900.0%
12,000
+5900.0%
0.00%
Q4 2015$1,000
-96.0%
200
-96.6%
0.00%
Q3 2015$25,000
-90.7%
5,868
-82.3%
0.00%
-100.0%
Q2 2015$270,000
+1250.0%
33,125
+1174.0%
0.00%
Q1 2015$20,000
-93.0%
2,600
-86.2%
0.00%
-100.0%
Q2 2014$286,00018,7990.00%
Other shareholders
CASTLIGHT HEALTH INC shareholders Q1 2021
NameSharesValueWeighting ↓
OAK MANAGEMENT CORP 5,958,872$16,089,0004.05%
Cowen Prime Services LLC 2,168,206$5,854,0002.72%
Gagnon Advisors, LLC 1,384,600$3,738,0002.24%
GAGNON SECURITIES LLC 2,606,703$7,038,0001.62%
AlpInvest Partners B.V. 232,713$628,0001.34%
HARBOURVEST PARTNERS LLC 349,070$918,0000.83%
Penbrook Management LLC 263,530$712,0000.68%
SELZ CAPITAL LLC 734,000$1,981,0000.44%
HAMILTON LANE ADVISORS LLC 260,313$1,0000.41%
Taylor Wealth Management Partners 281,100$759,0000.32%
View complete list of CASTLIGHT HEALTH INC shareholders