Mario Gabelli's MRK Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 64,973 shares of Merck & Co., Inc. (MRK) worth $6.84 M, representing 0.07% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mario Gabelli has maintained a long-term strategic position in MRK, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2021, adding 75,643 shares. Largest reduction occurred in Q2 2020, reducing 45,496 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Merck & Co (MRK) Holding Value Over Time
Track share changes against reported price movement
Quarterly Merck & Co (MRK) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +1,915 | Add 3.04% | 64,973 | $105.26 |
| Q3 2025 | -6,141 | Reduce 8.87% | 63,058 | $83.93 |
| Q2 2025 | -3,431 | Reduce 4.72% | 69,199 | $79.16 |
| Q1 2025 | -6,533 | Reduce 8.25% | 72,630 | $89.76 |
| Q4 2024 | -1,780 | Reduce 2.20% | 79,163 | $99.48 |
| Q3 2024 | +4,172 | Add 5.43% | 80,943 | $113.56 |
| Q2 2024 | -2,780 | Reduce 3.49% | 76,771 | $123.80 |
| Q1 2024 | -2,939 | Reduce 3.56% | 79,551 | $131.95 |
| Q4 2023 | -9,725 | Reduce 10.55% | 82,490 | $109.02 |
| Q3 2023 | -29,580 | Reduce 24.29% | 92,215 | $102.95 |
| Q2 2023 | -6,645 | Reduce 5.17% | 121,795 | $115.39 |
| Q1 2023 | -35,845 | Reduce 21.82% | 128,440 | $106.39 |
| Q4 2022 | -8,600 | Reduce 4.97% | 164,285 | $110.95 |
| Q3 2022 | -2,740 | Reduce 1.56% | 172,885 | $86.12 |
| Q2 2022 | -1,938 | Reduce 1.09% | 175,625 | $91.17 |
| Q1 2022 | +630 | Add 0.36% | 177,563 | $82.05 |
| Q4 2021 | -2,663 | Reduce 1.48% | 176,933 | $76.64 |
| Q3 2021 | -9,225 | Reduce 4.89% | 179,596 | $75.11 |
| Q2 2021 | -12,474 | Reduce 6.20% | 188,821 | $77.77 |
| Q1 2021 | +75,643 | Add 60.20% | 201,295 | $73.56 |
| Q4 2020 | +24,495 | Add 24.21% | 125,652 | $78.06 |
| Q3 2020 | +60,819 | Add 150.77% | 101,157 | $79.15 |
| Q2 2020 | -45,496 | Reduce 53.00% | 40,338 | $73.78 |
| Q1 2020 | +7,820 | Add 10.02% | 85,834 | $73.42 |
| Q4 2019 | +7,582 | Add 10.76% | 78,014 | $86.78 |
| Q3 2019 | -4,244 | Reduce 5.68% | 70,432 | $80.32 |
| Q2 2019 | -34,254 | Reduce 31.45% | 74,676 | $80.01 |
| Q1 2019 | -2,463 | Reduce 2.21% | 108,930 | $79.36 |
| Q4 2018 | -1,005 | Reduce 0.89% | 111,393 | $72.91 |
| Q3 2018 | +4,192 | Add 3.87% | 112,398 | $67.69 |
| Q2 2018 | -4,725 | Reduce 4.18% | 108,206 | $57.92 |
| Q1 2018 | +59 | Add 0.05% | 112,931 | $51.98 |
| Q4 2017 | +6,076 | Add 5.69% | 112,872 | $53.69 |
| Q3 2017 | -4,088 | Reduce 3.69% | 106,796 | $61.10 |
| Q1 2017 | -838 | Reduce 0.75% | 110,884 | $60.63 |
| Q4 2016 | -838 | Reduce 0.74% | 111,722 | $56.18 |
| Q3 2016 | -6,393 | Reduce 5.37% | 112,560 | $59.55 |
| Q2 2016 | -4,863 | Reduce 3.93% | 118,953 | $54.97 |
| Q1 2016 | -22,501 | Reduce 15.38% | 123,816 | $50.49 |
| Q4 2015 | -3,248 | Reduce 2.17% | 146,317 | $50.40 |
| Q3 2015 | -6,105 | Reduce 3.92% | 149,565 | $47.13 |
| Q2 2015 | -12,998 | Reduce 7.71% | 155,670 | $54.32 |
| Q1 2015 | +17,328 | Add 11.45% | 168,668 | $54.85 |
| Q4 2014 | -19,176 | Reduce 11.25% | 151,340 | $54.19 |
| Q3 2014 | +2,505 | Add 1.49% | 170,516 | $56.56 |
| Q1 2014 | -37,052 | Reduce 18.07% | 168,011 | $54.17 |
| Q4 2013 | -5 | Reduce 0.00% | 205,063 | $47.76 |
| Q3 2013 | +5,882 | Add 2.95% | 205,068 | $45.43 |
| Q2 2013 | +199,186 | Add 0.00% | 199,186 | $44.32 |
Mario Gabelli's Merck & Co Investment FAQs
Mario Gabelli first purchased Merck & Co., Inc. (MRK) in Q2 2013, acquiring 199,186 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Merck & Co., Inc. (MRK) for 51 quarters since Q2 2013.
Mario Gabelli's largest addition to Merck & Co., Inc. (MRK) was in Q2 2013, adding 199,186 shares worth $8.83 M.
According to the latest 13F filing for Q4 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 64,973 shares of Merck & Co., Inc. (MRK), valued at approximately $6.84 M.
As of the Q4 2025 filing, Merck & Co., Inc. (MRK) represents approximately 0.07% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in Merck & Co., Inc. (MRK) was 205,068 shares, as reported at the end of Q3 2013.