BLACKROCK INC

BLK Q1 2026 institutional ownership is a $110.4B book across 2,187 holders. BlackRock (self-holder) is the largest holder at $9.7B (10.1M shares, -9.8%, -$1.06B). Vanguard Capital Management is second at $8.9B (9.2M shares, NEW after three-way split). State Street is third at $6.0B (6.3M shares, -2.5%). Temasek Holdings (sovereign_wealth) is fourth at $5.1B (5.3M shares, -2.8%). Bank of America is fifth at $5.0B (5.2M shares, -2.6%). Capital Research Global Investors $4.4B (+16.8%, +$325M). Wellington Management $3.5B (+140.5%, +$1.95B from $1.45B) -- the explosive buyer. Morgan Stanley $3.3B (-4.4%). Vanguard total passive ~$13.0B across three entities. Geode Capital $3.1B. Franklin Resources $2.1B. Northern Trust $1.5B. Goldman Sachs $1.4B (+11.6%, +$157M). UBS AM $1.3B (+3.5%). UBS Group $1.3B (+12.6%). Wells Fargo $2.4B (-3.1%). Fisher Asset $1.7B (-5.5%). Ameriprise $1.5B (-6.5%). Capital World $749M (-24.6%). Millennium $770M (+8.4%). New: Vanguard three-way. Sellers: BlackRock self -$1.06B, State Street -$667M, Capital International -$693M, Fidelity -$514M, Temasek -$325M, BofA -$531M, Morgan Stanley -$449M, Wells Fargo -$295M, Fisher -$240M, Ameriprise -$237M, Northern Trust -$152M, Capital World -$304M. Buyers: Wellington +$1.95B, Capital Research +$325M, Goldman +$157M, UBS Group +$152M, Millennium +$60M, UBS AM +$44M, Franklin +$86M. The 75.50 whaleScore reflects AUM. Smart-money read: net-trim. Widespread reductions from mega-holders offset by Wellington's +$1.95B concentrated add. Possible rotation out of asset-management stocks. Cautious.