BlackRock
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BlackRock’s Merck MRK Stock Holding History

BlackRock’s Portfolio MRK Stock Details MRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q4 		– Sell
-923,000
Closed -$105M – 5432
2024
Q3 		$105M Buy
923,000
+272,000
+42% +$32.3M ﹤0.01% 2057
2024
Q2 		$80.6M Buy
+651,000
New +$83.9M ﹤0.01% 2153

Other funds holding MRK

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

BlackRock's MRK Position: Q1 2026 in Review

BlackRock increased its Merck (MRK) stake by 3.1% in Q1 2026, buying an estimated $778M and bringing the position to 225,830,330 shares worth $27.2B. The position accounts for 0.47% of the portfolio, ranked #28.

BlackRock first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $27.3B in Q1 2024. 3,779 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • BlackRock held 225,830,330 shares of Merck worth $27.2B as of Q1 2026.
  • BlackRock bought 6,734,865 Merck shares in Q1 2026, an estimated $778M.
  • Merck made up 0.47% of BlackRock's portfolio in Q1 2026, its #28 holding.
  • BlackRock first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
  • BlackRock's Merck position peaked at $27.3B in Q1 2024.
  • 3,779 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.