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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001144204-17-008715
Filing Date
2017-02-14
Accepted
2017-02-14 15:27:23
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G v459227_sc13g.htm SC 13G 52899
  Complete submission text file 0001144204-17-008715.txt   54615
Mailing Address 924 AVENUE J EAST GRAND PRAIRIE TX 75050
Business Address 924 AVENUE J EAST GRAND PRAIRIE TX 75050 972 595-5000
Six Flags Entertainment Corp (Subject) CIK: 0000701374 (see all company filings)

IRS No.: 133995059 | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-33593 | Film No.: 17607911
SIC: 7990 Services-Miscellaneous Amusement & Recreation

Mailing Address 222 WEST ADAMS STREET CHICAGO IL 60606
Business Address 222 WEST ADAMS STREET CHICAGO IL 60606 312-236-1600
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (Filed by) CIK: 0001644956 (see all company filings)

IRS No.: 472614791 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G