Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionCadinha & Co Llc
Latest Disclosed Ownership166,864 shares
Latest Disclosed Value $ 20,072,119
Cadinha & Co Llc reports 33.79% decrease in ownership of 6MK / Merck & Co., Inc.

On May 11, 2026 - Cadinha & Co Llc filed a 13F-HR form disclosing ownership of 166,864 shares of Merck & Co., Inc. (BG:6MK) valued at $20,072,119 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 252,024 shares of Merck & Co., Inc.. This represents a change in shares of -33.79% 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 166,864 -85,160 -33.79 20,072 -24.34 3.7393
2026-01-28 2025-12-31 13F Merck COM 58933Y105 252,024 240,055 2,005.64 26,528 2,542.23 4.0926
2025-10-17 2025-09-30 13F Merck COM 58933Y105 11,969 -1,842 -13.34 1,005 -8.14 0.1365
2025-07-31 2025-06-30 13F Merck COM 58933Y105 13,811 -512 -3.57 1,093 -14.94 0.1814
2025-04-04 2025-03-31 13F Merck COM 58933Y105 14,323 -7,515 -34.41 1,286 -40.84 0.2762
2025-01-16 2024-12-31 13F Merck COM 58933Y105 21,838 -129,532 -85.57 2,172 -87.36 0.3604
2024-10-09 2024-09-30 13F Merck COM 58933Y105 151,370 -393 -0.26 17,190 -8.51 2.9388
2024-07-31 2024-06-30 13F Merck COM 58933Y105 151,763 418 0.28 18,788 -5.91 3.4840
2024-05-02 2024-03-31 13F Merck COM 58933Y105 151,345 -939 -0.62 19,970 20.28 3.4317
2024-01-24 2023-12-31 13F Merck COM 58933Y105 152,284 243 0.16 16,602 6.07 2.6501
2023-11-02 2023-09-30 13F Merck COM 58933Y105 152,041 3,849 2.60 15,653 -8.46 3.4618
2023-07-26 2023-06-30 13F Merck COM 58933Y105 148,192 65,258 78.69 17,100 93.80 3.1085
2023-04-28 2023-03-31 13F Merck COM 58933Y105 82,934 63,250 321.33 8,823 304.17 2.4302
2023-01-25 2022-12-31 13F Merck COM 58933Y105 19,684 4,065 26.03 2,184 62.30 0.4877
2022-10-21 2022-09-30 13F Merck COM 58933Y105 15,619 -277,547 -94.67 1,345 -94.97 0.4526
2022-08-05 2022-06-30 13F Merck COM 58933Y105 293,166 65,135 28.56 26,728 42.85 5.9733
2022-05-12 2022-03-31 13F Merck COM 58933Y105 228,031 1,186 0.52 18,710 7.62 2.6947
2022-02-03 2021-12-31 13F Merck COM 58933Y105 226,845 204,820 929.94 17,385 951.09 2.3393
2021-11-12 2021-09-30 13F Merck COM 58933Y105 22,025 8,865 67.36 1,654 61.68 0.2363
2021-07-29 2021-06-30 13F Merck COM 58933Y105 13,160 615 4.90 1,023 5.79 0.1376
2021-05-06 2021-03-31 13F Merck COM 58933Y105 12,545 -1,190 -8.66 967 -13.97 0.1392
2021-01-22 2020-12-31 13F Merck COM 58933Y105 13,735 -84,080 -85.96 1,124 -86.15 0.1557
2020-10-30 2020-09-30 13F Merck COM 58933Y105 97,815 2,860 3.01 8,114 10.50 1.4089
2020-07-22 2020-06-30 13F Merck COM 58933Y105 94,955 83,322 716.26 7,343 720.45 1.2486
2020-05-06 2020-03-31 13F Merck COM 58933Y105 11,633 -523 -4.30 895 -19.08 0.2376
2020-01-23 2019-12-31 13F Merck COM 58933Y105 12,156 566 4.88 1,106 13.32 0.1562
2019-10-30 2019-09-30 13F Merck COM 58933Y105 11,590 -335 -2.81 976 -2.40 0.1579
2019-08-09 2019-06-30 13F Merck COM 58933Y105 11,925 -100 -0.83 1,000 0.00 0.1808
2019-05-08 2019-03-31 13F Merck COM 58933Y105 12,025 -374 -3.02 1,000 5.60 0.1958
2019-01-29 2018-12-31 13F Merck COM 58933Y105 12,399 -705 -5.38 947 1.83 0.2349
2018-11-07 2018-09-30 13F Merck COM 58933Y105 13,104 182 1.41 930 18.62 0.1471
2018-08-07 2018-06-30 13F Merck COM 58933Y105 12,922 416 3.33 784 15.12 0.1435
2018-05-10 2018-03-31 13F Merck COM 58933Y105 12,506 -10,450 -45.52 681 -47.29 0.1374
2018-01-27 2017-12-31 13F Merck COM 58933Y105 22,956 1,100 5.03 1,292 -7.65 0.1785
2017-11-14 2017-09-30 13F Merck COM 58933Y105 21,856 -450 -2.02 1,399 -2.17 0.2385
2017-08-02 2017-06-30 13F Merck COM 58933Y105 22,306 6,562 41.68 1,430 43.00 0.2494
2017-05-09 2017-03-31 13F Merck COM 58933Y105 15,744 -86,520 -84.60 1,000 -83.39 0.1979
2017-02-10 2016-12-31 13F Merck COM 58933Y105 102,264 -201,399 -66.32 6,020 -68.24 1.0348
2016-11-11 2016-09-30 13F Merck COM 58933Y105 303,663 -820 -0.27 18,952 8.04 3.8594
2016-08-06 2016-06-30 13F Merck COM 58933Y105 304,483 36,954 13.81 17,541 23.92 3.7600
2016-05-05 2016-03-31 13F Merck COM 58933Y105 267,529 -33,263 -11.06 14,155 -10.91 3.6473
2016-01-29 2015-12-31 13F Merck COM 58933Y105 300,792 -22,542 -6.97 15,888 -0.51 3.7669
2015-10-28 2015-09-30 13F Merck COM 58933Y105 323,334 46,290 16.71 15,969 1.25 3.8753
2015-07-28 2015-06-30 13F Merck COM 58933Y105 277,044 -4,467 -1.59 15,772 -2.53 3.1419
2015-04-08 2015-03-31 13F Merck COM 58933Y105 281,511 281,511 0.00 16,181 3.2203
2015-02-03 2014-12-31 13F Merck COM 58933Y105 0 -282,466 -100.00 0 -100.00
2014-11-10 2014-09-30 13F Merck COM 58933Y105 282,466 -648 -0.23 16,745 2.24 3.0458
2014-08-08 2014-06-30 13F Merck COM 58933Y105 283,114 -954 -0.34 16,378 1.56 2.7656
2014-04-29 2014-03-31 13F Merck COM 58933Y105 284,068 -1,195 -0.42 16,127 12.96 2.9101
2014-01-31 2013-12-31 13F Merck COM 58933Y105 285,263 -129,037 -31.15 14,277 -27.62 2.6509
2013-10-31 2013-09-30 13F Merck COM 58933Y105 414,300 -3,825 -0.91 19,724 1.55 3.9554
2013-08-07 2013-06-30 13F Merck COM 58933Y105 418,125 418,125 19,422 4.4413
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.