Last updated Aug 21, 2026
BlackRock, Inc. (BLK) is a publicly traded company. This page tracks every superinvestor 13F holding, congressional stock trade, and Form 4 insider transaction in BLK. Across our datasets, 5 superinvestors hold BLK and 19 members of Congress have traded it.
Notable holders include Tom Gayner, Ray Dalio, and Mark Hillman. Active congressional traders include Ro Khanna, Jefferson Shreve, and Greg Landsman.
Key takeaways