Rock Springs Capital Management LP - ATHENAHEALTH INC ownership

ATHENAHEALTH INC's ticker is ATHN and the CUSIP is 04685W103. A total of 249 filers reported holding ATHENAHEALTH INC in Q4 2016. The put-call ratio across all filers is 1.14 and the average weighting 0.3%.

Quarter-by-quarter ownership
Rock Springs Capital Management LP ownership history of ATHENAHEALTH INC
ValueSharesWeighting
Q1 2017$7,071,000
+7.2%
62,7500.0%0.41%
-7.7%
Q4 2016$6,599,000
+14.4%
62,750
+37.2%
0.44%
+22.1%
Q3 2016$5,770,000
-8.6%
45,7500.0%0.36%
-22.5%
Q2 2016$6,314,000
-0.6%
45,7500.0%0.47%
-12.2%
Q1 2016$6,349,000
-0.1%
45,750
+15.8%
0.53%
+10.4%
Q4 2015$6,358,000
+25.5%
39,500
+3.9%
0.48%
+17.3%
Q3 2015$5,067,000
+16.4%
38,0000.0%0.41%
+29.2%
Q2 2015$4,354,000
-51.2%
38,000
-43.9%
0.32%
-77.0%
Q3 2014$8,922,000
+14.5%
67,750
+8.8%
1.38%
-1.2%
Q2 2014$7,789,000
+149.2%
62,250
+219.2%
1.40%
+93.8%
Q1 2014$3,125,000
+19.1%
19,5000.0%0.72%
-23.1%
Q4 2013$2,623,00019,5000.94%
Other shareholders
ATHENAHEALTH INC shareholders Q4 2016
NameSharesValueWeighting ↓
ARK Investment Management 233,411$24,548,0008.93%
Barton Investment Management 216,835$22,804,0007.58%
Avalon Global Asset Management LLC 61,080$6,424,0005.27%
HHR Asset Management, LLC 803,155$84,468,0004.58%
GAGNON SECURITIES LLC 101,503$10,675,0004.58%
Gagnon Advisors, LLC 49,684$5,225,0004.32%
PURA VIDA INVESTMENTS, LLC 95,000$9,991,0003.66%
Tamarack Advisers, LP 41,000$4,312,0003.05%
RIVERBRIDGE PARTNERS LLC 1,036,171$108,974,0002.28%
361 CAPITAL LLC 67,219$7,069,0001.68%
View complete list of ATHENAHEALTH INC shareholders