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ASPEN TECHNOLOGY INC
ASPEN TECHNOLOGY INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 4 Institutional holders with a total value of $5,030,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SIT INVESTMENT ASSOCIATES INC 127,505 4,465,000 88.77%
2 RQSI Ltd 12,114 424,000 8.43%
3 SIMPLEX TRADING, LLC 3,432 120,000 2.39%
4 GROUP ONE TRADING LLC 600 21,000 0.42%

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.