NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC - ATHENAHEALTH INC ownership

ATHENAHEALTH INC's ticker is ATHN and the CUSIP is 04685W103. A total of 228 filers reported holding ATHENAHEALTH INC in Q1 2015. The put-call ratio across all filers is 1.51 and the average weighting 0.3%.

Quarter-by-quarter ownership
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC ownership history of ATHENAHEALTH INC
ValueSharesWeighting
Q4 2015$733,000
+21.2%
4,551
+0.2%
0.02%
+15.4%
Q3 2015$605,000
+16.3%
4,5400.0%0.01%
+30.0%
Q2 2015$520,000
+4.0%
4,540
+8.4%
0.01%0.0%
Q1 2015$500,0004,1900.01%
Other shareholders
ATHENAHEALTH INC shareholders Q1 2015
NameSharesValueWeighting ↓
Barton Investment Management 209,014$28,846,00010.50%
GAGNON SECURITIES LLC 98,540$13,600,0006.34%
Sio Capital Management, LLC 83,100$11,469,0005.86%
Gagnon Advisors, LLC 47,318$6,530,0005.52%
HHR Asset Management, LLC 656,452$90,597,0004.61%
Avalon Global Asset Management LLC 52,500$7,246,0004.18%
RIVERBRIDGE PARTNERS LLC 980,305$135,292,0002.80%
PURA VIDA INVESTMENTS, LLC 30,000$4,140,0001.76%
Eventide Asset Management 201,200$27,768,0001.70%
Sands Capital Management 3,358,482$463,504,0001.43%
View complete list of ATHENAHEALTH INC shareholders