Merck & Co., Inc. MRK
CIK 0000310158 · CUSIP 58933Y105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | VANGUARD GROUP INC CIK 102909 · View history | $21.16B 252,136,910 shares | 0.32% | -777.52K(-0.30%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $18.03B 214,876,600 shares | 0.32% | -3.46M(-1.60%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 03 | STATE STREET CORP CIK 93751 · View history | $10.01B 118,180,178 shares | 0.35% | -313.69K(-0.30%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 04 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $6.32B 75,279,104 shares | 1.11% | -1.58M(-2.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $5.01B 59,798,874 shares | 0.32% | +846.19K(+1.40%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 06 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $4.51B 53,699,460 shares | 0.72% | -166.01K(-0.30%)Reduced | SEC filing ↗ Nov 10, 2025 | ▾ |
| 07 | MORGAN STANLEY CIK 895421 · Amended · View history | $3.74B 44,586,535 shares | 0.23% | +385.84K(+0.90%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 08 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $2.95B 35,201,647 shares | 0.19% | +3.38M(+10.60%)Added | SEC filing ↗ Nov 26, 2025 | ▾ |
| 09 | FMR LLC CIK 315066 · View history | $2.81B 33,426,750 shares | 0.15% | +1.86M(+5.90%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 10 | NORTHERN TRUST CORP CIK 73124 · View history | $2.34B 27,933,141 shares | 0.30% | -812.29K(-2.80%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $2.22B 26,449,436 shares | 0.17% | -1.57M(-5.60%)Reduced | SEC filing ↗ Feb 3, 2026 | ▾ |
| 12 | Fisher Asset Management, LLC CIK 850529 · View history | $2.02B 24,068,126 shares | 0.73% | -945.57K(-3.80%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 13 | Bank of New York Mellon Corp CIK 1390777 · View history | $1.83B 21,794,354 shares | 0.33% | -203.08K(-0.90%)Reduced | SEC filing ↗ Nov 3, 2025 | ▾ |
| 14 | Legal & General Group Plc CIK 764068 · View history | $1.73B 20,659,157 shares | 0.39% | +1.16M(+5.90%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 15 | Invesco Ltd. CIK 914208 · View history | $1.67B 19,844,936 shares | 0.26% | +2.82M(+16.60%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 16 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $1.66B 19,749,865 shares | 0.36% | -5.38M(-21.40%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $1.57B 18,708,703 shares | 0.99% | -747.39K(-3.80%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 18 | UBS Group AG CIK 1610520 · View history | $1.42B 16,906,008 shares | 0.28% | +5.19K(0.00%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 19 | DEUTSCHE BANK AG\ CIK 948046 · View history | $1.41B 16,846,361 shares | 0.47% | -196.26K(-1.20%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 20 | FRANKLIN RESOURCES INC CIK 38777 · View history | $1.41B 16,746,990 shares | 0.35% | -10.29M(-38.00%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
Showing 20 / 3,312 institutions. The complete set is available through the API.
Coverage & totals by quarter
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