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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001144204-19-007190
Filing Date
2019-02-13
Accepted
2019-02-13 16:25:16
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G/A tv513397_sc13ga.htm SC 13G/A 53546
  Complete submission text file 0001144204-19-007190.txt   55276
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/A | Act: 34 | File No.: 005-33593 | Film No.: 19597568
SIC: 7990 Services-Miscellaneous Amusement & Recreation

Mailing Address 150 NORTH RIVERSIDE PLAZA CHICAGO IL 60606
Business Address 150 NORTH RIVERSIDE PLAZA 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/A