BLACKROCK INC (BLK) Institutional Ownership and Insiders Activity

BLACKROCK INC (BLK) is widely held by institutional investors, with 6 tracked firms reporting positions valued at approximately $597.30M based on SEC Form 13F filings for the quarter ended June 30, 2026.

ValueAct Holdings is the largest disclosed holder, reporting approximately $525.19M in BLK holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with ValueAct Holdings representing the majority of disclosed value.

Recent insider activity includes 34 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.