머크 앤 컴퍼니(Merck & Co., Inc.)
DE ˙ XTRA ˙ US58933Y1055
€102.78 ↑2.84 (2.84%)
2026-06-04
주가
SecurityDE:6MK / Merck & Co., Inc.
InstitutionHeritage Trust Co
Latest Disclosed Ownership81,460 shares
Latest Disclosed Value $ 9,798,842
Heritage Trust Co reports 8.13% increase in ownership of 6MK / Merck & Co., Inc.

On May 13, 2026 - Heritage Trust Co filed a 13F-HR form disclosing ownership of 81,460 shares of Merck & Co., Inc. (DE:6MK) valued at $8,488,132 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 75,335 shares of Merck & Co., Inc.. This represents a change in shares of 8.13% during the quarter. The current value of the position is $8,372,459 USD.

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)
2026-05-13 2026-03-31 13F MERCK COMMON STOCK 58933Y105 81,460 6,125 8.13 9,799 23.57 0.9830
2026-02-10 2025-12-31 13F MERCK COMMON STOCK 58933Y105 75,335 2,590 3.56 7,930 29.88 0.8070
2025-11-12 2025-09-30 13F MERCK COMMON STOCK 58933Y105 72,745 1,669 2.35 6,106 8.51 0.6471
2025-08-12 2025-06-30 13F MERCK COMMON STOCK 58933Y105 71,076 -1,120 -1.55 5,626 -13.18 0.6497
2025-05-09 2025-03-31 13F MERCK COMMON STOCK 58933Y105 72,196 -139 -0.19 6,480 -9.94 0.7856
2025-02-13 2024-12-31 13F MERCK COMMON STOCK 58933Y105 72,335 9,053 14.31 7,196 -8.16 0.8472
2024-08-12 2024-06-30 13F MERCK COMMON STOCK 58933Y105 63,282 -259 -0.41 7,834 -6.56 1.0332
2024-05-10 2024-03-31 13F MERCK COMMON STOCK 58933Y105 63,541 -937 -1.45 8,384 19.28 1.1228
2024-02-09 2023-12-31 13F MERCK COMMON STOCK 58933Y105 64,478 -2,208 -3.31 7,029 2.39 0.9894
2023-11-08 2023-09-30 13F MERCK COMMON STOCK 58933Y105 66,686 -387 -0.58 6,865 -11.29 1.0715
2023-08-11 2023-06-30 13F MERCK COMMON STOCK 58933Y105 67,073 1,514 2.31 7,740 10.97 1.1325
2023-05-12 2023-03-31 13F MERCK COMMON STOCK 58933Y105 65,559 -673 -1.02 6,975 -5.09 1.0969
2023-02-10 2022-12-31 13F MERCK COMMON STOCK 58933Y105 66,232 8 0.01 7,348 28.82 1.1970
2022-11-10 2022-09-30 13F MERCK COMMON STOCK 58933Y105 66,224 266 0.40 5,704 -5.14 0.9974
2022-08-11 2022-06-30 13F MERCK COMMON STOCK 58933Y105 65,958 9,973 17.81 6,013 30.89 0.9845
2022-05-11 2022-03-31 13F MERCK COMMON STOCK 58933Y105 55,985 1,393 2.55 4,594 9.80 0.6493
2022-02-09 2021-12-31 13F MERCK COMMON STOCK 58933Y105 54,592 -3,129 -5.42 4,184 -3.51 0.5365
2021-11-09 2021-09-30 13F MERCK COMMON STOCK 58933Y105 57,721 -357 -0.61 4,336 -3.99 0.6102
2021-08-09 2021-06-30 13F MERCK COMMON STOCK 58933Y105 58,078 4,392 8.18 4,516 9.11 0.6455
2021-05-12 2021-03-31 13F MERCK COMMON STOCK 58933Y105 53,686 4,943 10.14 4,139 3.81 0.6312
2021-02-11 2020-12-31 13F MERCK COMMON STOCK 58933Y105 48,743 141 0.29 3,987 -1.12 0.6460
2020-11-13 2020-09-30 13F MERCK COMMON STOCK 58933Y105 48,602 -668 -1.36 4,032 5.85 0.7513
2020-08-04 2020-06-30 13F MERCK COMMON STOCK 58933Y105 49,270 28,997 143.03 3,809 144.17 0.7462
2020-05-11 2020-03-31 13F MERCK COMMON STOCK 58933Y105 20,273 1,256 6.60 1,560 -9.83 0.3893
2020-02-11 2019-12-31 13F MERCK COMMON STOCK 58933Y105 19,017 663 3.61 1,730 11.90 0.3458
2019-11-12 2019-09-30 13F MERCK COMMON STOCK 58933Y105 18,354 -62 -0.34 1,546 0.13 0.3341
2019-08-13 2019-06-30 13F MERCK COMMON STOCK 58933Y105 18,416 40 0.22 1,544 1.05 0.3432
2019-05-15 2019-03-31 13F MERCK COMMON STOCK 58933Y105 18,376 5,130 38.73 1,528 50.99 0.3528
2019-01-18 2018-12-31 13F MERCK & CO INC COM COMMON STOCK 58933Y105 13,246 384 2.99 1,012 10.96 0.4175
2018-11-14 2018-09-30 13F MERCK & CO INC COM COMMON STOCK 58933Y105 12,862 221 1.75 912 18.90 0.3271
2018-08-15 2018-06-30 13F MERCK & CO INC COM COMMON STOCK 58933Y105 12,641 295 2.39 767 14.14 0.2883
2018-05-14 2018-03-31 13F MERCK & CO INC COM COMMON STOCK 58933Y105 12,346 11 0.09 672 -3.17 0.2511
2018-02-12 2017-12-31 13F MERCK & CO INC COM COMMON STOCK 58933Y105 12,335 551 4.68 694 -7.96 0.2493
2017-11-14 2017-09-30 13F MERCK & CO INC COM COMMON STOCK 58933Y105 11,784 7,143 153.91 754 153.87 0.2773
2017-08-09 2017-06-30 13F MERCK & CO INC COM COMMON STOCK 58933Y105 4,641 -3,424 -42.46 297 -42.11 0.1145
2017-05-08 2017-03-31 13F MERCK & CO INC COM COMMON STOCK 58933Y105 8,065 8,065 513 0.1955
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.