Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSargent Investment Group, LLC
Latest Disclosed Ownership25,599 shares
Latest Disclosed Value $ 3,079,348
Sargent Investment Group, LLC reports 1.43% decrease in ownership of MRK / Merck & Co., Inc.

On May 11, 2026 - Sargent Investment Group, LLC filed a 13F-HR form disclosing ownership of 25,599 shares of Merck & Co., Inc. (MX:MRK) valued at $3,079,348 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,971 shares of Merck & Co., Inc.. This represents a change in shares of -1.43% 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)
2026-05-11 2026-03-31 13F MERCK COM 58933Y105 25,599 -372 -1.43 3,079 12.66 0.4056
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 25,971 153 0.59 2,734 26.18 0.3429
2025-11-14 2025-09-30 13F MERCK COM 58933Y105 25,818 2,280 9.69 2,167 15.89 0.3088
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 23,538 3,522 17.60 1,870 4.06 0.2528
2025-05-05 2025-03-31 13F MERCK COM 58933Y105 20,016 1,160 6.15 1,797 -5.67 0.2869
2025-01-27 2024-12-31 13F MERCK COM 58933Y105 18,856 6,386 51.21 1,904 34.46 0.3114
2024-11-06 2024-09-30 13F MERCK COM 58933Y105 12,470 -1,615 -11.47 1,416 -18.76 0.2544
2024-08-09 2024-06-30 13F MERCK COM 58933Y105 14,085 1,328 10.41 1,744 3.57 0.3557
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 12,757 -1,606 -11.18 1,683 7.54 0.3691
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 14,363 73 0.51 1,566 6.39 0.3430
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 14,290 2,272 18.90 1,471 6.13 0.3544
2023-07-31 2023-06-30 13F MERCK COM 58933Y105 12,018 590 5.16 1,387 11.41 0.3368
2023-05-02 2023-03-31 13F MERCK COM 58933Y105 11,428 184 1.64 1,244 -0.24 0.3281
2023-01-31 2022-12-31 13F MERCK COM 58933Y105 11,244 1,496 15.35 1,247 46.36 0.3874
2022-10-27 2022-09-30 13F MERCK COM 58933Y105 9,748 250 2.63 852 -1.62 0.2652
2022-07-26 2022-06-30 13F MERCK COM 58933Y105 9,498 0 0.00 866 11.17 0.2676
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 9,498 0 0.00 779 7.01 0.1963
2022-02-11 2021-12-31 13F MERCK COM 58933Y105 9,498 -290 -2.96 728 -0.95 0.1660
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 9,788 60 0.62 735 -2.91 0.1785
2021-08-05 2021-06-30 13F MERCK & CO. COM 58933Y105 9,728 -455 -4.47 757 -3.57 0.1796
2021-05-04 2021-03-31 13F MERCK & CO. COM 58933Y105 10,183 1,825 21.84 785 14.77 0.2068
2021-02-10 2020-12-31 13F MERCK & CO. COM 58933Y105 8,358 671 8.73 684 7.21 0.2160
2020-11-12 2020-09-30 13F MERCK & CO. COM 58933Y105 7,687 -17 -0.22 638 5.98 0.2322
2020-08-11 2020-06-30 13F MERCK & CO. COM 58933Y105 7,704 0 0.00 602 1.52 0.2262
2020-05-12 2020-03-31 13F MERCK & CO. COM 58933Y105 7,704 98 1.29 593 -14.31 0.2727
2020-02-11 2019-12-31 13F/A-1 MERCK COM 58933Y105 7,606 631 9.05 692 17.89 0.2539
2020-01-30 2019-12-31 13F MERCK COM 58933Y105 7,606 631 692 264,339.0569
2019-10-29 2019-09-30 13F MERCK COM 58933Y105 6,975 -13 -0.19 587 0.17 0.2636
2019-08-12 2019-06-30 13F MERCK COM 58933Y105 6,988 -950 -11.97 586 -11.21 0.2676
2019-05-13 2019-03-31 13F MERCK COM 58933Y105 7,938 970 13.92 660 24.06 0.3178
2019-02-12 2018-12-31 13F MERCK COM 58933Y105 6,968 6,968 532 0.3269
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.