Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionGQG Partners LLC
Latest Disclosed Ownership53,016 shares
Latest Disclosed Value $ 6,377,294
GQG Partners LLC reports 0.92% decrease in ownership of MRK / Merck & Co., Inc.

On May 12, 2026 - GQG Partners LLC filed a 13F-HR form disclosing ownership of 53,016 shares of Merck & Co., Inc. (MX:MRK) valued at $6,377,294 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 53,509 shares of Merck & Co., Inc.. This represents a change in shares of -0.92% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F MERCK COM 58933Y105 53,016 -493 -0.92 6,377 13.23 0.0101
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 53,509 410 0.77 5,632 26.39 0.0093
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 53,099 -3,896 -6.84 4,457 -1.22 0.0068
2025-08-13 2025-06-30 13F MERCK COM 58933Y105 56,995 6,213 12.23 4,512 -1.03 0.0064
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 50,782 -7,151 -12.34 4,558 -20.91 0.0073
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 57,933 -852,497 -93.64 5,763 -94.43 0.0086
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 910,430 852,338 1,467.22 103,388 1,337.74 0.1620
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 58,092 9,653 19.93 7,192 12.52 0.0109
2024-05-13 2024-03-31 13F MERCK COM 58933Y105 48,439 11,527 31.23 6,392 58.82 0.0103
2024-02-13 2023-12-31 13F MERCK COM 58933Y105 36,912 -668 -1.78 4,024 4.03 0.0085
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 37,580 0 0.00 3,869 -10.79 0.0090
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 37,580 0 0.00 4,336 8.45 0.0100
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 37,580 4,009 11.94 3,998 7.36 0.0105
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 33,571 0 0.00 3,725 28.81 0.0101
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 33,571 -4,180,488 -99.20 2,891 -99.25 0.0084
2022-08-15 2022-06-30 13F MERCK COM 58933Y105 4,214,059 4,205,325 48,148.90 384,412 53,513.95 0.9435
2022-05-13 2022-03-31 13F MERCK COM 58933Y105 8,734 491 5.96 717 13.45 0.0017
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 8,243 2,881 53.73 632 56.82 0.0016
2021-11-16 2021-09-30 13F MERCK COM 58933Y105 5,362 -1,825 -25.39 403 -27.91 0.0011
2021-08-13 2021-06-30 13F MERCK COM 58933Y105 7,187 1,219 20.43 559 21.52 0.0016
2021-05-14 2021-03-31 13F MERCK & CO. COM 58933Y105 5,968 5,968 460 0.0017
2020-08-19 2020-06-30 13F/A-1 MERCK & CO. COM 58933Y105 0 -3,076 -100.00 0 -100.00
2020-05-14 2020-03-31 13F MERCK & CO. COM 58933Y105 3,076 -1,625 -34.57 237 -44.63 0.0016
2020-02-13 2019-12-31 13F MERCK COM 58933Y105 4,701 -1,603,418 -99.71 428 -99.68 0.0030
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 1,608,119 102,035 6.77 135,286 7.21 1.3762
2019-08-14 2019-06-30 13F MERCK COM 58933Y105 1,506,084 -106,860 -6.63 126,182 -5.66 1.3592
2019-05-14 2019-03-31 13F MERCK COM 58933Y105 1,612,944 1,604,240 18,431.07 133,759 20,014.14 1.6592
2019-02-15 2018-12-31 13F/A-1 MERCK COM 58933Y105 8,704 5,653 185.28 665 207.87 0.0102
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 8,704 5,653 665,073 0.0102
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 3,051 3,051 216 0.0035
2018-02-13 2017-12-31 13F MERCK COM 58933Y105 0 -351,769 -100.00 0 -100.00
2017-11-13 2017-09-30 13F MERCK COM 58933Y105 351,769 309,661 735.40 22,524 734.53 0.7916
2018-03-19 2017-06-30 13F/A-1 MERCK COM 58933Y105 42,108 36,637 669.66 2,699 675.57 0.1986
2017-08-11 2017-06-30 13F MERCK COM 58933Y105 42,108 36,637 2,699
2017-09-28 2017-03-31 13F/A-1 MERCK COM 58933Y105 5,471 -1,000 -15.45 348 -8.66 0.0783
2017-05-15 2017-03-31 13F MERCK COM 58933Y105 5,471 -1,000 348 0.0783
2017-09-26 2016-12-31 13F/A-1 MERCK COM 58933Y105 6,471 6,471 381 0.2648
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 6,471 6,471 381 0.2648
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.