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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0001104659-20-013155
Filing Date
2020-02-10
Accepted
2020-02-10 12:01:43
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G tm207001-9_sc13g.htm SC 13G 49819
  Complete submission text file 0001104659-20-013155.txt   51270
Mailing Address 160 EXETER DRIVE WINCHESTER VA 22603-8605
Business Address 160 EXETER DRIVE WINCHESTER VA 22603-8605 5405426300
TREX CO INC (Subject) CIK: 0001069878 (see all company filings)

IRS No.: 541910453 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-56187 | Film No.: 20590499
SIC: 2400 Lumber & Wood Products (No Furniture)

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