Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionPeddock Capital Advisors, Llc
Latest Disclosed Ownership9,029 shares
Latest Disclosed Value $ 1,086,098
Peddock Capital Advisors, Llc ownership in MRK / Merck & Co., Inc.

On April 15, 2026 - Peddock Capital Advisors, Llc filed a 13F-HR form disclosing ownership of 9,029 shares of Merck & Co., Inc. (MX:MRK) valued at $1,086,098 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 9,029 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-04-15 2026-03-31 13F MERCK COM 58933Y105 9,029 0 0.00 1,086 14.32 0.2395
2026-01-21 2025-12-31 13F MERCK COM 58933Y105 9,029 0 0.00 950 25.50 0.1991
2025-10-17 2025-09-30 13F MERCK COM 58933Y105 9,029 -510 -5.35 758 0.26 0.1633
2025-07-15 2025-06-30 13F MERCK COM 58933Y105 9,539 -606 -5.97 755 -17.03 0.1746
2025-04-30 2025-03-31 13F MERCK COM 58933Y105 10,145 -1,314 -11.47 911 -20.11 0.2306
2025-01-13 2024-12-31 13F MERCK COM 58933Y105 11,459 -6,190 -35.07 1,140 -43.16 0.2733
2024-10-08 2024-09-30 13F MERCK COM 58933Y105 17,649 287 1.65 2,004 -6.75 0.4820
2024-07-18 2024-06-30 13F MERCK COM 58933Y105 17,362 178 1.04 2,149 -5.21 0.5536
2024-05-03 2024-03-31 13F MERCK COM 58933Y105 17,184 776 4.73 2,267 26.79 0.5940
2024-02-06 2023-12-31 13F MERCK COM 58933Y105 16,408 -715 -4.18 1,789 1.48 0.5450
2023-10-10 2023-09-30 13F MERCK COM 58933Y105 17,123 329 1.96 1,763 -9.03 0.5878
2023-08-07 2023-06-30 13F MERCK COM 58933Y105 16,794 1,286 8.29 1,938 17.47 0.6375
2023-05-04 2023-03-31 13F MERCK COM 58933Y105 15,508 783 5.32 1,650 0.98 0.5731
2023-02-02 2022-12-31 13F MERCK COM 58933Y105 14,725 869 6.27 1,634 36.88 0.6323
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 13,856 1,348 10.78 1,193 4.65 0.4899
2022-08-01 2022-06-30 13F MERCK COM 58933Y105 12,508 199 1.62 1,140 12.87 0.4460
2022-05-16 2022-03-31 13F MERCK & CO. COM 58933Y105 12,309 7,823 174.39 1,010 193.60 0.3274
2022-02-08 2021-12-31 13F MERCK COM 58933Y105 4,486 152 3.51 344 5.52 0.1137
2021-11-15 2021-09-30 13F Merck COM 58933Y105 4,334 -3,901 -47.37 326 -48.50 0.1161
2021-08-16 2021-06-30 13F Merck COM 58933Y105 8,235 210 2.62 633 2.26 0.2213
2021-05-17 2021-03-31 13F Merck COM 58933Y105 8,025 859 11.99 619 5.63 0.2365
2021-02-12 2020-12-31 13F Merck COM 58933Y105 7,166 1,043 17.03 586 15.35 0.3052
2020-11-16 2020-09-30 13F Merck COM 58933Y105 6,123 779 14.58 508 23.00 0.3113
2020-08-11 2020-06-30 13F Merck COM 58933Y105 5,344 2,506 88.30 413 89.45 0.2605
2020-05-13 2020-03-31 13F Merck COM 58933Y105 2,838 454 19.04 218 0.46 0.1630
2020-01-24 2019-12-31 13F Merck COM 58933Y105 2,384 0 0.00 217 7.96 0.1111
2019-10-15 2019-09-30 13F Merck COM 58933Y105 2,384 0 0.00 201 0.50 0.1116
2019-08-06 2019-06-30 13F Merck COM 58933Y105 2,384 0 0.00 200 1.01 0.1065
2019-05-14 2019-03-31 13F Merck COM 58933Y105 2,384 0 0.00 198 8.79 0.1072
2019-02-13 2018-12-31 13F Merck COM 58933Y105 2,384 0 0.00 182 7.69 0.1079
2018-11-13 2018-09-30 13F MERCK & CO INC COM Stock 58933Y105 2,384 0 0.00 169 16.55 0.0814
2018-08-03 2018-06-30 13F MERCK & CO INC COM Stock 58933Y105 2,384 0 0.00 145 11.54 0.0726
2018-05-04 2018-03-31 13F MERCK & CO INC COM Stock 58933Y105 2,384 0 0.00 130 -2.99 0.0685
2018-02-02 2017-12-31 13F Merck COM 58933Y105 2,384 0 0.00 134 -12.42 0.0672
2017-11-14 2017-09-30 13F Merck COM 58933Y105 2,384 -20 -0.83 153 -0.65 0.0784
2017-08-04 2017-06-30 13F Merck COM 58933Y105 2,404 2,404 154 0.0818
2017-02-03 2016-12-31 13F Merck COM 589331107 0 -2,618 -100.00 0 -100.00
2016-10-14 2016-09-30 13F Merck COM 589331107 2,618 2,618 163 0.1002
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.