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

Institutional Holders (2014Q1)
Portfolio Summary: 256 Institutional holders with a total value of $3,836,691,902.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WADDELL & REED FINANCIAL INC 9,295,025 393,737,000 10.26%
2 VANGUARD GROUP INC 6,459,975 273,644,000 7.13%
3 Invesco Ltd. 3,986,701 168,877,000 4.40%
4 BlackRock Institutional Trust Company, N.A. 3,574,859 151,431,000 3.95%
5 FMR LLC 3,435,002 145,507,000 3.79%
6 WELLS FARGO & COMPANY/MN 3,084,045 130,640,000 3.41%
7 ALLIANCEBERNSTEIN L.P. 3,021,531 127,992,000 3.34%
8 BlackRock Fund Advisors 2,820,868 119,492,000 3.11%
9 EAGLE ASSET MANAGEMENT INC 2,378,174 100,739,000 2.63%
10 Allianz Asset Management GmbH 2,347,956 97,807,000 2.55%
11 STATE STREET CORP 2,213,667 93,773,000 2.44%
12 Clearbridge Investments, LLC 1,840,230 77,952,000 2.03%
13 RENAISSANCE TECHNOLOGIES LLC 1,765,600 74,791,000 1.95%
14 RGM Capital, LLC 1,669,211 70,708,000 1.84%
15 OppenheimerFunds, Inc. 1,586,320 67,197,000 1.75%
16 NORTHERN TRUST CORP 1,433,018 60,703,000 1.58%
17 ALKEON CAPITAL MANAGEMENT LLC 1,243,021 52,654,000 1.37%
18 Stephens Investment Management Group LLC 1,136,103 48,125,000 1.25%
19 TimesSquare Capital Management, LLC 1,131,000 47,909,000 1.25%
20 EAGLE BOSTON INVESTMENT MANAGEMENT INC 1,048,358 44,408,000 1.16%
21 KING LUTHER CAPITAL MANAGEMENT CORP 995,906 42,187,000 1.10%
22 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 976,617 41,369,496 1.08%
23 PRINCIPAL FINANCIAL GROUP INC 931,203 39,445,000 1.03%
24 FRED ALGER MANAGEMENT, LLC 924,041 39,142,000 1.02%
25 LORD, ABBETT & CO. LLC 909,018 38,506,000 1.00%
26 VOYA INVESTMENT MANAGEMENT LLC 891,599 37,768,000 0.98%
27 TEACHERS ADVISORS, LLC 884,557 37,470,000 0.98%
28 NORGES BANK 766,822 32,482,000 0.85%
29 LOOMIS SAYLES & CO L P 750,531 31,793,000 0.83%
30 SEGALL BRYANT & HAMILL, LLC 721,887 30,579,000 0.80%
31 Neuberger Berman Group LLC 713,538 30,225,000 0.79%
32 Granahan Investment Management, LLC 679,506 28,784,000 0.75%
33 ROYAL BANK OF CANADA 678,486 28,741,000 0.75%
34 IRONBRIDGE CAPITAL MANAGEMENT LP 662,709 28,072,000 0.73%
35 GEODE CAPITAL MANAGEMENT, LLC 662,687 28,071,000 0.73%
36 BLACKROCK ADVISORS LLC 658,332 27,887,000 0.73%
37 SANDLER CAPITAL MANAGEMENT 651,622 27,603,000 0.72%
38 BANK OF MONTREAL /CAN/ 635,704 26,929,000 0.70%
39 TIAA CREF INVESTMENT MANAGEMENT LLC 609,164 25,804,000 0.67%
40 AMERIPRISE FINANCIAL INC 554,091 23,472,000 0.61%
41 NEXT CENTURY GROWTH INVESTORS LLC 546,041 23,130,000 0.60%
42 Bank of New York Mellon Corp 537,018 22,749,000 0.59%
43 JACOBS LEVY EQUITY MANAGEMENT, INC 518,240 21,953,000 0.57%
44 FRANKLIN RESOURCES INC 510,000 21,604,000 0.56%
45 D. E. Shaw & Co., Inc. 498,095 21,099,000 0.55%
46 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 478,242 20,259,000 0.53%
47 RUSSELL FRANK CO/ 517,890 20,160,000 0.53%
48 CHARTWELL INVESTMENT PARTNERS/PA 462,434 19,589,000 0.51%
49 PRICE T ROWE ASSOCIATES INC /MD/ 457,615 19,385,000 0.51%
50 JPMORGAN CHASE & CO 454,856 19,268,000 0.50%
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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.