SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001193125-18-045562
Filing Date
2018-02-14
Accepted
2018-02-14 16:01:19
Documents
4
Group Members
IVY INVESTMENT MANAGEMENT COWADDELL & REED FINANCIAL SERVICES, INC.WADDELL & REED INVESTMENT MANAGEMENT COWADDELL & REED, INC.

Document Format Files

Seq Description Document Type Size
1 ASPEN TECHNOLOGY, INC. d512151dsc13ga.htm SC 13G/A 85561
2 JOINT FILING AGREEMENT d512151dex1.htm EX-1 8332
3 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY d512151dex2.htm EX-2 1350
4 POWER OF ATTORNEY d512151dex3.htm EX-3 32128
  Complete submission text file 0001193125-18-045562.txt   129100
Mailing Address 20 CROSBY DRIVE BEDFORD MA 01730
Business Address 20 CROSBY DRIVE BEDFORD MA 01730 781-221-4302
ASPEN TECHNOLOGY INC /DE/ (Subject) CIK: 0000929940 (see all company filings)

IRS No.: 042739697 | State of Incorp.: DE | Fiscal Year End: 0630
Type: SC 13G/A | Act: 34 | File No.: 005-44607 | Film No.: 18612126
SIC: 7371 Services-Computer Programming Services

Mailing Address PO BOX 29217 SHAWNEE MISSION KS 66201-9217
Business Address 6300 LAMAR AVE OVERLAND PARK KS 66202-4200 9132362000
WADDELL & REED FINANCIAL INC (Filed by) CIK: 0001052100 (see all company filings)

IRS No.: 510261715 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6211 Security Brokers, Dealers & Flotation Companies