Dark
Light
System
Security
ASPEN TECHNOLOGY INC
ASPEN TECHNOLOGY INC. Institutional holdings reported to the SEC.

Institutional Holders (2016Q2)
Portfolio Summary: 232 Institutional holders with a total value of $3,564,752,432.
#
Manager Name
Shares
Value ($)
%
Options
Notes
51 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 395,624 15,920,000 0.45%
52 Mawer Investment Management Ltd. 371,814 14,962,000 0.42%
53 BlackRock Investment Management, LLC 309,208 12,443,000 0.35%
54 KORNITZER CAPITAL MANAGEMENT INC /KS 307,920 12,391,000 0.35%
55 BLACKROCK ADVISORS LLC 306,677 12,341,000 0.35%
56 SENTINEL ASSET MANAGEMENT, INC. 291,867 11,745,000 0.33%
57 DEUTSCHE BANK AG\ 283,798 11,418,000 0.32%
58 Artisan Partners Limited Partnership 282,417 11,364,000 0.32%
59 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 279,927 11,264,000 0.32%
60 THRIVENT FINANCIAL FOR LUTHERANS 270,595 10,889,000 0.31%
61 AMERICAN CENTURY COMPANIES INC 267,094 10,748,000 0.30%
62 DUPONT CAPITAL MANAGEMENT CORP 260,162 10,469,000 0.29%
63 ROYAL BANK OF CANADA 248,233 9,989,000 0.28%
64 EAGLE BOSTON INVESTMENT MANAGEMENT INC 240,353 9,671,000 0.27%
65 NEW YORK STATE COMMON RETIREMENT FUND 239,061 9,620,000 0.27%
66 AMERIPRISE FINANCIAL INC 233,427 9,393,000 0.26%
67 Numeric Investors LLC 230,352 9,269,000 0.26%
68 BANK OF AMERICA CORP /DE/ 224,926 9,052,000 0.25%
69 EMERALD ACQUISITION LTD. 221,396 8,910,000 0.25%
70 Jupiter Investment Management Ltd 214,106 8,615,000 0.24%
71 Nicholas Investment Partners, LP 213,696 8,599,000 0.24%
72 HOWLAND CAPITAL MANAGEMENT LLC 209,050 8,412,000 0.24%
73 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 207,003 8,330,000 0.23%
74 JACOBS LEVY EQUITY MANAGEMENT, INC 197,817 7,960,000 0.22%
75 SEI INVESTMENTS CO 186,927 7,522,000 0.21%
76 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 173,654 6,988,000 0.20%
77 Aristotle Capital Boston, LLC 171,476 6,900,000 0.19%
78 STIFEL FINANCIAL CORP 161,080 6,482,000 0.18%
79 PARAMETRIC PORTFOLIO ASSOCIATES LLC 160,934 6,476,000 0.18%
80 VERDE SERVICOS INTERNACIONAIS S.A. 156,960 6,316,000 0.18%
81 Pier Capital, LLC 141,825 5,707,000 0.16%
82 QS Investors, LLC 139,282 5,605,000 0.16%
83 Swiss National Bank 138,800 5,585,000 0.16%
84 TEACHERS ADVISORS, LLC 133,231 5,361,000 0.15%
85 PNC FINANCIAL SERVICES GROUP, INC. 130,515 5,250,000 0.15%
86 BlackRock Group LTD 111,743 4,497,000 0.13%
87 SIT INVESTMENT ASSOCIATES INC 111,755 4,497,000 0.13%
88 KBC Group NV 110,550 4,449,000 0.12%
89 Convergence Investment Partners, LLC 104,398 4,201,000 0.12%
90 RHUMBLINE ADVISERS 101,275 4,075,000 0.11%
91 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 99,030 3,985,000 0.11%
92 CREDIT SUISSE AG/ 92,098 3,706,000 0.10%
93 BARCLAYS PLC 86,905 3,498,000 0.10%
94 RAYMOND JAMES & ASSOCIATES 86,632 3,486,000 0.10%
95 SKANDINAVISKA ENSKILDA BANKEN AB (PUBL) 84,700 3,408,000 0.10%
96 Cipher Capital LP 81,387 3,275,000 0.09%
97 Strategic Global Advisors, LLC 74,969 3,017,000 0.08%
98 TWO SIGMA ADVISERS, LP 66,610 2,680,000 0.08%
99 ARBOR CAPITAL MANAGEMENT LLC 65,412 2,632,000 0.07%
100 State of New Jersey Common Pension Fund D 65,000 2,616,000 0.07%
Page 2 of 5

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.