Position history for Calamos Advisors LLC's holdings in MERCK & CO INC
Calamos Advisors LLC holds 777,663 shares of MRK (MERCK & CO INC), worth $93.5M as of 2026-Q1. The position was increased (+8.0% shares). MRK represents 0.3% of Calamos Advisors LLC's portfolio.
Current Value
$93.5M
Current Shares
777,663
Total Value Change
-$22.1M
Total Shares Change
-156,750
Other major holders of MRK: UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
Increased |
| 777,663 |
+8.0% |
| $93.5M |
| 0.3% |
| $119.83 |
39 |
| 2025-Q4 | Increased | 719,806 | +41.1% | $75.8M | 0.3% | $106.06 | 47 |
| 2025-Q3 | Decreased | 510,200 | 0.0% | $42.8M | 0.2% | $77.91 | 0 |
| 2025-Q2 | Decreased | 510,213 | -23.6% | $40.4M | 0.2% | $77.66 | 0 |
| 2025-Q1 | Decreased | 668,215 | -21.6% | $60M | 0.3% | $86.74 | 0 |
| 2024-Q4 | Decreased | 852,847 | -10.6% | $84.8M | 0.4% | $94.81 | 0 |
| 2024-Q3 | Increased | 953,704 | +2.1% | $108.3M | 0.5% | $108.70 | 37 |
| 2024-Q2 | Decreased | 934,413 | -6.3% | $115.7M | 0.5% | $117.58 | 0 |