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
2026 Q1	$11.5M	Buy	+96,000	New	+$11.1M	﹤0.01%	3405
2024 Q3	–	Sell	-263,400	Closed	-$32.6M	–	5285
2024 Q2	$32.6M	Sell	263,400 -1,649,500	-86%	-$212M	﹤0.01%	2692
2024 Q1	$252M	Buy	+1,912,900	New	+$236M	0.01%	1490
2023 Q3	–	Sell	-476,000	Closed	-$54.9M	–	5509
2023 Q2	$54.9M	Buy	+476,000	New	+$54M	﹤0.01%	2423
2023 Q1	–	Sell	-280,000	Closed	-$31.1M	–	5659
2022 Q4	$31.1M	Buy	+280,000	New	+$28.6M	﹤0.01%	2782
2021 Q1	–	Sell	-1,253,303	Closed	-$97.8M	–	5322
2020 Q4	$97.8M	Sell	1,253,303 -1,219,663	-49%	-$93.3M	﹤0.01%	2096
2020 Q3	$196M	Buy	+2,472,966	New	+$194M	0.01%	1407
2014 Q4	–	Sell	-5,240	Closed	-$296K	–	3185
2014 Q3	$296K	Buy	5,240 +838	+19%	+$47.1K	﹤0.01%	1432
2014 Q2	$243K	Hold	4,402	–	–	﹤0.01%	1458
2014 Q1	$238K	Buy	+4,402	New	+$228K	﹤0.01%	1499

Other funds holding MRK

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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.