STIFEL NICOLAUS & CO INC \MO\ - ASPEN TECHNOLOGY INC ownership

ASPEN TECHNOLOGY INC's ticker is AZPN and the CUSIP is 045327103. A total of 204 filers reported holding ASPEN TECHNOLOGY INC in Q2 2013. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
STIFEL NICOLAUS & CO INC \MO\ ownership history of ASPEN TECHNOLOGY INC
ValueSharesWeighting
Q3 2013$1,166,581,000
+20.0%
33,7650.0%0.02%
+5.6%
Q2 2013$972,094,00033,7650.02%
Other shareholders
ASPEN TECHNOLOGY INC shareholders Q2 2013
NameSharesValueWeighting ↓
Two Creeks Capital Management, LP 989,160$122,933,0007.49%
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 6,072,554$754,697,0003.99%
Stephens Investment Management Group LLC 759,778$94,425,0001.79%
Copper Rock Capital Partners, LLC 188,407$23,415,0001.73%
Signition LP 20,196$2,510,000,0001.65%
MARSHALL WACE ASIA Ltd 489,621$60,851,0001.49%
WILKINS INVESTMENT COUNSEL INC 37,525$4,664,0001.40%
Oribel Capital Management, LP 125,700$15,622,0001.37%
Aristotle Capital Boston, LLC 341,546$42,447,0001.33%
EAGLE BOSTON INVESTMENT MANAGEMENT INC 9,325$1,158,0001.33%
View complete list of ASPEN TECHNOLOGY INC shareholders