519 institutions reported holding $5.60B of TREX (TREX) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($525.1M), VANGUARD GROUP INC ($498.7M), WELLINGTON MANAGEMENT GROUP LLP ($494.3M), ALLIANCEBERNSTEIN L.P. ($219.9M), MILLENNIUM MANAGEMENT LLC ($188.8M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30