Calamos Advisors’s Merck MRK Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $93.5M | Buy |
777,663
+57,857
| +8% | +$6.68M | 0.33% | 59 |
|
|
2025
Q4 | $75.8M | Buy |
719,806
+209,606
| +41% | +$19.7M | 0.28% | 77 |
|
|
2025
Q3 | $42.8M | Sell |
510,200
-13
| -0% | -$1.07K | 0.16% | 140 |
|
|
2025
Q2 | $40.4M | Sell |
510,213
-158,002
| -24% | -$12.6M | 0.16% | 145 |
|
|
2025
Q1 | $60M | Sell |
668,215
-184,632
| -22% | -$17.2M | 0.26% | 85 |
|
|
2024
Q4 | $84.8M | Sell |
852,847
-100,857
| -11% | -$10.4M | 0.35% | 53 |
|
|
2024
Q3 | $108M | Buy |
953,704
+19,291
| +2% | +$2.29M | 0.47% | 31 |
|
|
2024
Q2 | $116M | Sell |
934,413
-63,036
| -6% | -$8.12M | 0.51% | 26 |
|
|
2024
Q1 | $132M | Buy |
997,449
+56,176
| +6% | +$6.92M | 0.62% | 19 |
|
|
2023
Q4 | $103M | Sell |
941,273
-29,334
| -3% | -$3.04M | 0.5% | 27 |
|
|
2023
Q3 | $99.9M | Buy |
970,607
+188,466
| +24% | +$20.3M | 0.52% | 29 |
|
|
2023
Q2 | $90.3M | Buy |
782,141
+68,896
| +10% | +$7.82M | 0.45% | 34 |
|
|
2023
Q1 | $75.9M | Sell |
713,245
-60,622
| -8% | -$6.55M | 0.37% | 53 |
|
|
2022
Q4 | $85.9M | Sell |
773,867
-37,721
| -5% | -$3.86M | 0.4% | 47 |
|
|
2022
Q3 | $69.9M | Buy |
811,588
+162,388
| +25% | +$14.5M | 0.32% | 62 |
|
|
2022
Q2 | $59.2M | Buy |
649,200
+17,920
| +3% | +$1.59M | 0.26% | 92 |
|
|
2022
Q1 | $51.8M | Sell |
631,280
-167,898
| -21% | -$13.2M | 0.19% | 125 |
|
|
2021
Q4 | $61.2M | Sell |
799,178
-10,590
| -1% | -$843K | 0.23% | 103 |
|
|
2021
Q3 | $60.8M | Buy |
809,768
+50,329
| +7% | +$3.83M | 0.27% | 92 |
|
|
2021
Q2 | $59.1M | Buy |
759,439
+84,336
| +12% | +$6.27M | 0.27% | 84 |
|
|
2021
Q1 | $49.7M | Buy |
675,103
+12,627
| +2% | +$931K | 0.27% | 84 |
|
|
2020
Q4 | $51.7M | Sell |
662,476
-17,831
| -3% | -$1.36M | 0.3% | 83 |
|
|
2020
Q3 | $53.8M | Sell |
680,307
-38,023
| -5% | -$2.98M | 0.35% | 64 |
|
|
2020
Q2 | $53M | Sell |
718,330
-99,893
| -12% | -$7.52M | 0.37% | 61 |
|
|
2020
Q1 | $60.1M | Sell |
818,223
-401,487
| -33% | -$31.6M | 0.47% | 41 |
|
|
2019
Q4 | $106M | Sell |
1,219,710
-8,663
| -0.7% | -$712K | 0.52% | 35 |
|
|
2019
Q3 | $98.7M | Buy |
1,228,373
+44,902
| +4% | +$3.6M | 0.54% | 36 |
|
|
2019
Q2 | $94.7M | Buy |
1,183,471
+117,949
| +11% | +$9.03M | 0.53% | 35 |
|
|
2019
Q1 | $84.6M | Buy |
1,065,522
+100,156
| +10% | +$7.49M | 0.53% | 41 |
|
|
2018
Q4 | $70.4M | Buy |
965,366
+66,770
| +7% | +$4.71M | 0.46% | 51 |
|
|
2018
Q3 | $60.8M | Sell |
898,596
-9,908
| -1% | -$631K | 0.33% | 77 |
|
|
2018
Q2 | $52.6M | Sell |
908,504
-25,937
| -3% | -$1.46M | 0.32% | 86 |
|
|
2018
Q1 | $48.6M | Sell |
934,441
-64,220
| -6% | -$3.47M | 0.32% | 89 |
|
|
2017
Q4 | $53.6M | Sell |
998,661
-208,423
| -17% | -$11.6M | 0.27% | 69 |
|
|
2017
Q3 | $73.8M | Sell |
1,207,084
-112,558
| -9% | -$6.82M | 0.57% | 32 |
|
|
2017
Q2 | $80.7M | Buy |
1,319,642
+1,441
| +0.1% | +$87.7K | 0.6% | 35 |
|
|
2017
Q1 | $79.9M | Sell |
1,318,201
-13,391
| -1% | -$812K | 0.63% | 31 |
|
|
2016
Q4 | $74.8M | Sell |
1,331,592
-14,318
| -1% | -$838K | 0.59% | 39 |
|
|
2016
Q3 | $80.2M | Sell |
1,345,910
-11,304
| -0.8% | -$661K | 0.57% | 37 |
|
|
2016
Q2 | $74.6M | Sell |
1,357,214
-367,520
| -21% | -$19.6M | 0.52% | 45 |
|
|
2016
Q1 | $87.1M | Buy |
1,724,734
+25,367
| +1% | +$1.24M | 0.58% | 34 |
|
|
2015
Q4 | $85.6M | Sell |
1,699,367
-83,795
| -5% | -$4.22M | 0.54% | 40 |
|
|
2015
Q3 | $84M | Buy |
1,783,162
+37,023
| +2% | +$1.97M | 0.58% | 38 |
|
|
2015
Q2 | $94.9M | Buy |
1,746,139
+595,356
| +52% | +$33.4M | 0.59% | 36 |
|
|
2015
Q1 | $63.1M | Sell |
1,150,783
-20,210
| -2% | -$1.14M | 0.4% | 73 |
|
|
2014
Q4 | $63.5M | Sell |
1,170,993
-8,000
| -0.7% | -$446K | 0.42% | 67 |
|
|
2014
Q3 | $66.7M | Sell |
1,178,993
-436
| -0% | -$24.5K | 0.45% | 61 |
|
|
2014
Q2 | $65.1M | Buy |
1,179,429
+26,679
| +2% | +$1.46M | 0.41% | 66 |
|
|
2014
Q1 | $62.4M | Sell |
1,152,750
-2,612
| -0.2% | -$135K | 0.4% | 68 |
|
|
2013
Q4 | $55.2M | Sell |
1,155,362
-805,510
| -41% | -$36.8M | 0.35% | 75 |
|
|
2013
Q3 | $89.1M | Sell |
1,960,872
-83,657
| -4% | -$3.82M | 0.56% | 46 |
|
|
2013
Q2 | $90.6M | Buy |
+2,044,529
| New | +$91.3M | 0.59% | 42 |
|
Other funds holding MRK
VCM
VPM
Calamos Advisors's MRK Position: Q1 2026 in Review
Calamos Advisors increased its Merck (MRK) stake by 8% in Q1 2026, buying an estimated $6.68M and bringing the position to 777,663 shares worth $93.5M. The position accounts for 0.33% of the portfolio, ranked #59.
Calamos Advisors first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $132M in Q1 2024. 3,777 funds tracked by Wall St. Rank hold MRK as of Q1 2026.
- Calamos Advisors held 777,663 shares of Merck worth $93.5M as of Q1 2026.
- Calamos Advisors bought 57,857 Merck shares in Q1 2026, an estimated $6.68M.
- Merck made up 0.33% of Calamos Advisors's portfolio in Q1 2026, its #59 holding.
- Calamos Advisors first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
- Calamos Advisors's Merck position peaked at $132M in Q1 2024.
- 3,777 funds tracked by Wall St. Rank held Merck as of Q1 2026.
Based on Calamos Advisors's 13F filing for Q1 2026, filed 4 May 2026.