GROUP ONE TRADING, L.P. - ENVISION HEALTHCARE CORP ownership

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ENVISION HEALTHCARE CORP
ValueSharesWeighting
Q3 2018$15,224,000
-20.6%
332,900
-23.5%
0.12%
-26.8%
Q2 2018$19,162,000
+636.4%
435,400
+543.1%
0.16%
+530.8%
Q1 2018$2,602,000
+91.6%
67,700
+72.3%
0.03%
+160.0%
Q4 2017$1,358,000
-74.9%
39,300
-67.4%
0.01%
-79.6%
Q3 2017$5,412,000
+23.4%
120,400
+72.0%
0.05%
+6.5%
Q2 2017$4,387,000
+5828.4%
70,000
+5733.3%
0.05%
+4500.0%
Q1 2017$74,000
-83.1%
1,200
-82.6%
0.00%
-75.0%
Q4 2016$437,0006,9000.00%
Other shareholders
ENVISION HEALTHCARE CORP shareholders Q4 2018
NameSharesValueWeighting ↓
Marathon Trading Investment Management LLC 39,200$1,725,0000.18%
GROUP ONE TRADING, L.P. 435,400$19,162,0000.16%
Hudson Bay Capital Management LP 100,000$4,401,0000.06%
SIMPLEX TRADING, LLC 464$2,042,0000.01%
JPMORGAN CHASE & CO 200,000$8,802,0000.00%
View complete list of ENVISION HEALTHCARE CORP shareholders