Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionQtron Investments LLC
Latest Disclosed Ownership22,233 shares
Latest Disclosed Value $ 2,674,408
Qtron Investments LLC reports 0.04% increase in ownership of MRK / Merck & Co., Inc.

On May 15, 2026 - Qtron Investments LLC filed a 13F-HR form disclosing ownership of 22,233 shares of Merck & Co., Inc. (MX:MRK) valued at $2,674,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 22,225 shares of Merck & Co., Inc.. This represents a change in shares of 0.04% 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)
2026-05-15 2026-03-31 13F MERCK COM 58933Y105 22,233 8 0.04 2,674 14.32 0.3626
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 22,225 -1,790 -7.45 2,339 16.08 0.3041
2025-11-14 2025-09-30 13F MERCK COM 58933Y105 24,015 -13,492 -35.97 2,016 -32.13 0.2496
2025-08-13 2025-06-30 13F MERCK COM 58933Y105 37,507 0 0.00 2,969 -11.79 0.3793
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 37,507 2,355 6.70 3,367 -3.72 0.5039
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 35,152 3,189 9.98 3,497 -3.66 0.4911
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 31,963 0 0.00 3,630 -8.29 0.4959
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 31,963 1,594 5.25 3,957 -1.25 0.5720
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 30,369 8,089 36.31 4,007 65.03 0.5678
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 22,280 -2,968 -11.76 2,429 -6.58 0.3982
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 25,248 -640 -2.47 2,599 -12.99 0.4957
2023-08-10 2023-06-30 13F MERCK COM 58933Y105 25,888 0 0.00 2,987 8.46 0.5669
2023-05-11 2023-03-31 13F MERCK COM 58933Y105 25,888 -2,515 -8.85 2,754 -12.60 0.5662
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 28,403 3,839 15.63 3,151 48.98 0.6620
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 24,564 883 3.73 2,115 -2.04 0.5258
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 23,681 4,312 22.26 2,159 35.87 0.4746
2022-05-05 2022-03-31 13F MERCK COM 58933Y105 19,369 7,341 61.03 1,589 72.34 0.3552
2022-02-16 2021-12-31 13F MERCK COM 58933Y105 12,028 6,196 106.24 922 110.50 0.2083
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 5,832 -2,981 -33.83 438 -36.06 0.1178
2021-08-11 2021-06-30 13F MERCK COM 58933Y105 8,813 0 0.00 685 0.88 0.1736
2021-05-13 2021-03-31 13F MERCK & CO. COM 58933Y105 8,813 -2,747 -23.76 679 -28.22 0.1896
2021-02-12 2020-12-31 13F MERCK & CO. COM 58933Y105 11,560 -2,465 -17.58 946 -18.66 0.2529
2020-11-12 2020-09-30 13F MERCK & CO. COM 58933Y105 14,025 1,476 11.76 1,163 19.90 0.4050
2020-08-13 2020-06-30 13F MERCK & CO. COM 58933Y105 12,549 -7,239 -36.58 970 -36.27 0.3881
2020-05-14 2020-03-31 13F MERCK & CO. COM 58933Y105 19,788 2,700 15.80 1,522 -2.06 0.9158
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 17,088 0 0.00 1,554 8.07 0.8965
2019-11-12 2019-09-30 13F MERCK COM 58933Y105 17,088 1,560 10.05 1,438 10.45 0.8719
2019-08-13 2019-06-30 13F MERCK COM 58933Y105 15,528 5,309 51.95 1,302 53.18 0.8083
2019-05-13 2019-03-31 13F MERCK COM 58933Y105 10,219 0 0.00 850 8.83 0.7746
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 10,219 10,219 781 0.6000
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.