Companies / Merck & Co., Inc. / Activity
Activity — Merck & Co., Inc.
855 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2021 as of | Employees Provident Fund Board 13F manager | Add | Common stock | $14.07M | +181K +7.77% | 2,510,444 0.10% of shares | medium |
| Q1 2026 as of | California State Teachers Retirement System 13F manager | Trim | Common stock | $-13.29M | -111K -2.80% | 3,835,612 0.16% of shares | medium |
| Q1 2026 as of | Great Lakes Advisors, LLC 13F manager | Trim | Common stock | $-12.96M | -108K -6.42% | 1,569,387 0.06% of shares | medium |
| Q1 2026 as of | Walleye Trading LLC 13F manager | Exit | Common stock | $-12.75M | -121K -100.00% | 0 | medium |
| Q1 2026 as of | ProShare Advisors LLC 13F manager | Trim | Common stock | $-12.46M | -104K -16.47% | 525,295 0.02% of shares | medium |
| Q1 2026 as of | Dupont Capital Management Corp 13F manager | New | Common stock | $12.25M | +102K | 101,853 <0.01% of shares | medium |
| Q1 2026 as of | BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 13F manager | Trim | Common stock | $-12.17M | -101K -22.82% | 342,084 0.01% of shares | medium |
| Q4 2025 as of | Banco Santander, S.A. 13F manager | New | Common stock | $12.01M | +114K | 114,124 <0.01% of shares | medium |
| Q1 2026 as of | Hudson Bay Capital Management LP 13F manager | Add | Common stock | $11.99M | +100K +5539.17% | 101,505 <0.01% of shares | medium |
| Q1 2026 as of | Fideuram - Intesa Sanpaolo Private Banking S.p.a. 13F manager | Add | Common stock | $11.62M | +97K +49.09% | 293,491 0.01% of shares | medium |
| Q2 2025 as of | Leonteq Securities AG 13F manager | Add | Common stock | $11.51M | +145K +303.69% | 193,246 <0.01% of shares | medium |
| Q1 2026 as of | Gateway Investment Advisers LLC 13F manager | Trim | Common stock | $-11.21M | -93K -17.36% | 443,847 0.02% of shares | medium |
| Q1 2026 as of | Compass Capital Management, Inc 13F manager | Trim | Common stock | $-11.10M | -92K -13.53% | 589,768 0.02% of shares | medium |
| Q1 2026 as of | Asset Management One Co., Ltd. 13F manager | Add | Common stock | $10.99M | +91K +6.77% | 1,441,306 0.06% of shares | medium |
| Q1 2026 as of | Brighton Jones LLC 13F manager | New | Common stock | $10.78M | +90K | 89,649 <0.01% of shares | medium |
| Q1 2026 as of | Nomura Holdings Inc 13F manager | Trim | Common stock | $-9.67M | -80K -69.12% | 35,919 <0.01% of shares | medium |
| Q1 2026 as of | Public Sector Pension Investment Board 13F manager | Add | Common stock | $9.54M | +79K +24.59% | 401,889 0.02% of shares | medium |
| Q1 2026 as of | Norris Perne & French LLP/MI 13F manager | Trim | Common stock | $-9.42M | -78K -31.06% | 173,852 <0.01% of shares | medium |
| Q1 2023 as of | Employees Provident Fund Board 13F manager | Add | Common stock | $9.41M | +88K +23.59% | 463,449 0.02% of shares | medium |
| Q1 2026 as of | Rafferty Asset Management, LLC 13F manager | Trim | Common stock | $-9.21M | -77K -28.40% | 193,053 <0.01% of shares | medium |
| Q2 2026 as of | Dakota Wealth Management 13F manager | Add | Common stock | $8.90M | +69K +38.29% | 250,026 0.01% of shares | medium |
| Q4 2025 as of | First National Bank of Omaha 13F manager | Add | Common stock | $8.65M | +82K +220.92% | 118,700 <0.01% of shares | medium |
| Q3 2021 as of | Employees Provident Fund Board 13F manager | Add | Common stock | $8.48M | +113K +4.50% | 2,623,328 0.11% of shares | medium |
| Q1 2026 as of | Zurcher Kantonalbank (Zurich Cantonalbank) 13F manager | Add | Common stock | $8.42M | +70K +7.34% | 1,024,300 0.04% of shares | medium |
| Q1 2026 as of | Schroder Investment Management Group 13F manager | Add | Common stock | $8.39M | +70K +4.14% | 1,756,247 0.07% of shares | medium |
| Q1 2026 as of | Equitable Holdings, Inc. 13F manager | Add | Common stock | $8.25M | +74K +92.61% | 154,824 <0.01% of shares | medium |
| Q4 2025 as of | Alberta Investment Management Corp 13F manager | Trim | Common stock | $-8.00M | -76K -82.88% | 15,700 <0.01% of shares | medium |
| Q2 2026 as of | Wealthfront Advisers LLC 13F manager | Add | Common stock | $7.76M | +60K +23.49% | 317,659 0.01% of shares | medium |
| Q4 2024 as of | Danske Bank A/S 13F manager | Add | Common stock | $7.16M | +72K +3.97% | 1,886,346 0.08% of shares | medium |
| Q1 2026 as of | Itau Unibanco Holding S.A. 13F manager | Trim | Common stock | $-6.98M | -58K -98.92% | 636 <0.01% of shares | medium |
| Q1 2026 as of | Calamos Advisors LLC 13F manager | Add | Common stock | $6.96M | +58K +8.04% | 777,663 0.03% of shares | medium |
| Q1 2026 as of | TD Asset Management Inc 13F manager | Add | Common stock | $6.95M | +58K +2.59% | 2,288,576 0.09% of shares | medium |
| Q1 2026 as of | Assetmark, Inc 13F manager | Add | Common stock | $6.91M | +57K +32.84% | 232,295 <0.01% of shares | medium |
| Q2 2026 as of | AMG National Trust Bank 13F manager | Trim | Common stock | $-6.54M | -51K -54.64% | 42,236 <0.01% of shares | medium |
| Q4 2025 as of | Employees Provident Fund Board 13F manager | Add | Common stock | $6.42M | +61K +2.59% | 2,415,034 0.10% of shares | medium |
| Q1 2026 as of | Peak6 LLC 13F manager | New | Common stock | $5.84M | +49K | 48,515 <0.01% of shares | medium |
| Q1 2026 as of | University of TEXAS/TEXAS Am Investment Management Co 13F manager | Exit | Common stock | $-5.36M | -51K -100.00% | 0 | medium |
| Q1 2026 as of | Mariner, LLC 13F manager | Add | Common stock | $5.05M | +42K +1.53% | 2,795,221 0.11% of shares | medium |
| Q1 2026 as of | Capital Fund Management S.A. 13F manager | Exit | Common stock | $-5.03M | -48K -100.00% | 0 | medium |
| Q1 2026 as of | Flputnam Investment Management Co 13F manager | Add | Common stock | $4.89M | +41K +19.32% | 250,923 0.01% of shares | low |
| Q1 2026 as of | Intech Investment Management LLC 13F manager | Trim | Common stock | $-4.85M | -40K -24.76% | 122,438 <0.01% of shares | low |
| Q1 2026 as of | Bridgeway Capital Management, LLC 13F manager | Trim | Common stock | $-4.81M | -40K -15.07% | 225,105 <0.01% of shares | low |
| Q1 2026 as of | Regions Financial Corp 13F manager | Add | Common stock | $4.77M | +40K +3.11% | 1,317,370 0.05% of shares | low |
| Q3 2019 as of | Employees Provident Fund Board 13F manager | Trim | Common stock | $-4.72M | -56K -8.14% | 633,200 0.03% of shares | low |
| Q1 2026 as of | Rathbones Group PLC 13F manager | Trim | Common stock | $-4.60M | -38K -14.68% | 222,240 <0.01% of shares | low |
| Q3 2024 as of | Elevation Point Wealth Partners, LLC 13F manager | Add | Common stock | $4.54M | +40K +189.28% | 61,113 <0.01% of shares | low |
| Q1 2026 as of | ALPS Advisors, Inc. 13F manager | Trim | Common stock | $-4.49M | -37K -8.03% | 427,760 0.02% of shares | low |
| Q1 2026 as of | Brown Advisory Inc 13F manager | Add | Common stock | $4.37M | +36K +2.79% | 1,341,293 0.05% of shares | low |
| Q2 2026 as of | Mml Investors Services, LLC 13F manager | Add | Common stock | $4.03M | +31K +7.60% | 444,129 0.02% of shares | low |
| Q3 2025 as of | Leonteq Securities AG 13F manager | Trim | Common stock | $-3.97M | -47K -24.49% | 145,922 <0.01% of shares | low |