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

Institutional Holders (2017Q1)
Portfolio Summary: 271 Institutional holders with a total value of $4,588,118,519.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 7,635,099 449,861,000 9.80%
2 BlackRock Finance, Inc. 5,503,112 324,242,000 7.07%
3 WADDELL & REED FINANCIAL INC 5,003,490 294,805,000 6.43%
4 FMR LLC 4,206,339 247,837,000 5.40%
5 Neuberger Berman Group LLC 3,501,290 206,296,000 4.50%
6 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 3,479,044 204,985,000 4.47%
7 AJO, LP 2,969,493 174,963,000 3.81%
8 Clearbridge Investments, LLC 2,573,161 151,611,000 3.30%
9 Fisher Asset Management, LLC 2,101,000 123,791,000 2.70%
10 WELLINGTON MANAGEMENT GROUP LLP 1,988,448 117,160,000 2.55%
11 RENAISSANCE TECHNOLOGIES LLC 1,952,300 115,030,000 2.51%
12 JPMORGAN CHASE & CO 1,845,597 108,743,000 2.37%
13 ALLIANCEBERNSTEIN L.P. 1,797,232 105,893,000 2.31%
14 Two Creeks Capital Management, LP 1,679,203 98,939,000 2.16%
15 Invesco Ltd. 1,577,735 92,960,000 2.03%
16 STATE STREET CORP 1,572,183 92,628,000 2.02%
17 PICTET ASSET MANAGEMENT LTD 1,312,312 77,321,000 1.69%
18 WELLS FARGO & COMPANY/MN 1,087,409 64,069,000 1.40%
19 NORTHERN TRUST CORP 1,065,843 62,799,000 1.37%
20 BAMCO INC /NY/ 1,042,400 61,418,000 1.34%
21 EAGLE ASSET MANAGEMENT INC 1,004,389 59,178,000 1.29%
22 Stephens Investment Management Group LLC 905,240 53,337,000 1.16%
23 DIMENSIONAL FUND ADVISORS LP 838,182 49,385,000 1.08%
24 JANUS HENDERSON INVESTORS US LLC 809,834 47,715,000 1.04%
25 GEODE CAPITAL MANAGEMENT, LLC 809,578 47,700,000 1.04%
26 Boston Trust Walden Corp 647,878 38,173,000 0.83%
27 BROWN ADVISORY INC 643,240 37,900,000 0.83%
28 GOLDMAN SACHS GROUP INC 593,830 34,988,000 0.76%
29 NORGES BANK 593,139 34,948,000 0.76%
30 ALKEON CAPITAL MANAGEMENT LLC 590,568 34,796,000 0.76%
31 PRICE T ROWE ASSOCIATES INC /MD/ 581,068 34,237,000 0.75%
32 TimesSquare Capital Management, LLC 567,600 33,443,000 0.73%
33 PRINCIPAL FINANCIAL GROUP INC 521,113 30,703,000 0.67%
34 FRANKLIN RESOURCES INC 513,818 30,274,000 0.66%
35 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 486,237 28,649,000 0.62%
36 Provident Investment Management, Inc. 449,437 26,481,000 0.58%
37 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 437,095 25,754,000 0.56%
38 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 429,805 25,324,000 0.55%
39 Mawer Investment Management Ltd. 411,148 24,225,000 0.53%
40 TIAA CREF INVESTMENT MANAGEMENT LLC 401,291 23,644,000 0.52%
41 Bank of New York Mellon Corp 367,323 21,643,000 0.47%
42 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 350,936 20,677,000 0.45%
43 KORNITZER CAPITAL MANAGEMENT INC /KS 314,850 18,551,000 0.40%
44 SCOUT INVESTMENTS, INC. 311,954 18,380,000 0.40%
45 VOYA INVESTMENT MANAGEMENT LLC 296,206 17,453,000 0.38%
46 STIFEL FINANCIAL CORP 270,615 15,929,000 0.35%
47 ROYAL BANK OF CANADA 267,813 15,779,000 0.34%
48 NEW YORK STATE COMMON RETIREMENT FUND 265,363 15,635,000 0.34%
49 Gotham Asset Management, LLC 251,465 14,816,000 0.32%
50 CANADA PENSION PLAN INVESTMENT BOARD 250,900 14,783,000 0.32%
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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.