默克公司
DE ˙ XTRA ˙ US58933Y1055
€102.78 ↑2.84 (2.84%)
2026-06-04
分享價格
SecurityDE:6MK / Merck & Co., Inc.
InstitutionFairfield, Bush & Co.
Latest Disclosed Ownership21,247 shares
Latest Disclosed Value $ 2,555,778
Fairfield, Bush & Co. reports 5.54% decrease in ownership of 6MK / Merck & Co., Inc.

On May 12, 2026 - Fairfield, Bush & Co. filed a 13F-HR form disclosing ownership of 21,247 shares of Merck & Co., Inc. (DE:6MK) valued at $2,213,937 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 22,494 shares of Merck & Co., Inc.. This represents a change in shares of -5.54% during the quarter. The current value of the position is $2,183,767 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)
2026-05-12 2026-03-31 13F MERCK & CO INC COM Stock 58933Y105 21,247 -1,247 -5.54 2,556 7.94 1.4190
2026-02-13 2025-12-31 13F MERCK & CO INC COM Stock 58933Y105 22,494 -563 -2.44 2,368 22.33 1.2492
2025-11-14 2025-09-30 13F MERCK & CO INC COM Stock 58933Y105 23,057 3,969 20.79 1,935 28.06 0.9935
2025-08-15 2025-06-30 13F MERCK & CO INC COM Stock 58933Y105 19,088 1,988 11.63 1,511 -1.50 0.8541
2025-05-13 2025-03-31 13F MERCK & CO INC COM Stock 58933Y105 17,100 4,679 37.67 1,535 24.21 0.9736
2025-02-13 2024-12-31 13F MERCK & CO INC COM Stock 58933Y105 12,421 1,235 11.04 1,236 -2.76 0.7267
2024-11-12 2024-09-30 13F MERCK & CO INC COM Stock 58933Y105 11,186 -580 -4.93 1,270 -12.77 0.7555
2024-08-15 2024-06-30 13F MERCK & CO INC COM Stock 58933Y105 11,766 -216 -1.80 1,457 -7.85 0.8728
2024-05-15 2024-03-31 13F MERCK & CO INC COM Stock 58933Y105 11,982 -295 -2.40 1,581 18.09 0.9372
2024-02-13 2023-12-31 13F MERCK & CO INC COM Stock 58933Y105 12,277 -870 -6.62 1,338 -1.11 0.7849
2023-11-15 2023-09-30 13F MERCK & CO INC COM Stock 58933Y105 13,147 -10,375 -44.11 1,353 -50.15 0.8843
2023-08-15 2023-06-30 13F MERCK & CO INC COM Stock 58933Y105 23,522 127 0.54 2,714 9.04 0.7473
2023-05-15 2023-03-31 13F MERCK & CO INC COM Stock 58933Y105 23,395 10,284 78.44 2,489 71.18 0.8767
2023-02-14 2022-12-31 13F MERCK & CO INC COM Stock 58933Y105 13,111 38 0.29 1,455 29.13 0.9602
2022-11-07 2022-09-30 13F MERCK & CO INC COM Stock 58933Y105 13,073 -901 -6.45 1,126 -11.62 0.7950
2022-08-09 2022-06-30 13F MERCK & CO INC COM Stock 58933Y105 13,974 -2,684 -16.11 1,274 -6.80 0.7490
2022-05-12 2022-03-31 13F/A-1 MERCK & CO INC COM Stock 58933Y105 16,658 -937 -5.33 1,367 1.41 0.6855
2022-05-06 2022-03-31 13F MERCK & CO INC COM Stock 58933Y105 16,658 -937 1,367 0.6438
2022-05-12 2021-12-31 13F/A-1 MERCK & CO INC COM Stock 58933Y105 17,595 -16,124 -47.82 1,348 -46.78 0.6480
2022-02-09 2021-12-31 13F MERCK & CO INC COM Stock 58933Y105 17,595 -16,124 1,348 0.6438
2021-11-08 2021-09-30 13F MERCK & CO INC COM Stock 58933Y105 33,719 -6,765 -16.71 2,533 -19.54 0.8230
2021-08-02 2021-06-30 13F Merck COM 58933Y105 40,484 -1,440 -3.43 3,148 -2.60 0.8556
2021-05-14 2021-03-31 13F Merck COM 58933Y105 41,924 -697 -1.64 3,232 -7.29 0.9225
2021-02-12 2020-12-31 13F Merck COM 58933Y105 42,621 208 0.49 3,486 -0.91 1.0165
2020-11-18 2020-09-30 13F Merck COM 58933Y105 42,413 100 0.24 3,518 7.52 1.1236
2020-08-13 2020-06-30 13F Merck COM 58933Y105 42,313 20,995 98.48 3,272 99.51 1.1675
2020-05-13 2020-03-31 13F Merck COM 58933Y105 21,318 2,550 13.59 1,640 -3.93 0.6816
2020-02-12 2019-12-31 13F Merck COM 58933Y105 18,768 1,750 10.28 1,707 19.12 0.6282
2019-11-13 2019-09-30 13F Merck COM 58933Y105 17,018 550 3.34 1,433 3.77 0.4953
2019-08-13 2019-06-30 13F Merck COM 58933Y105 16,468 2,200 15.42 1,381 16.34 0.4705
2019-05-15 2019-03-31 13F Merck COM 58933Y105 14,268 2,000 16.30 1,187 26.68 0.3940
2019-02-11 2018-12-31 13F Merck COM 58933Y105 12,268 -311 -2.47 937 5.04 0.3223
2018-11-13 2018-09-30 13F Merck COM 58933Y105 12,579 -555 -4.23 892 11.92 0.2504
2018-08-16 2018-06-30 13F Merck COM 58933Y105 13,134 -355 -2.63 797 8.44 0.2343
2018-05-09 2018-03-31 13F Merck COM 58933Y105 13,489 403 3.08 735 -0.14 0.2134
2018-02-22 2017-12-31 13F Merck COM 58933Y105 13,086 311 2.43 736 -10.02 0.2028
2017-11-14 2017-09-30 13F Merck COM 58933Y105 12,775 0 0.00 818 -0.12 0.2556
2017-08-15 2017-06-30 13F/A-1 Merck COM 58933Y105 12,775 -350 -2.67 819 -1.80 0.2626
2017-08-15 2017-06-30 13F Merck COM 58933Y105 12,775 819
2017-05-08 2017-03-31 13F Merck COM 58933Y105 13,125 0 0.00 834 7.89 0.2601
2017-02-15 2016-12-31 13F Merck COM 58933Y105 13,125 0 0.00 773 -5.62 0.2512
2016-11-15 2016-09-30 13F Merck COM 58933Y105 13,125 -200 -1.50 819 6.64 0.2653
2016-08-15 2016-06-30 13F Merck COM 58933Y105 13,325 -200 -1.48 768 7.26 0.2665
2016-05-13 2016-03-31 13F Merck COM 58933Y105 13,525 -1,050 -7.20 716 -7.01 0.2559
2016-02-12 2015-12-31 13F Merck COM 58933Y105 14,575 9,380 180.56 770 199.61 0.2694
2015-11-13 2015-09-30 13F Merck COM 58933Y105 5,195 -13,643 -72.42 257 -76.03 0.1129
2015-08-14 2015-06-30 13F Merck COM 58933Y105 18,838 -1,150 -5.75 1,072 -6.70 0.3224
2015-05-15 2015-03-31 13F Merck COM 58933Y105 19,988 -960 -4.58 1,149 -3.45 0.3351
2015-02-13 2014-12-31 13F Merck COM 58933Y105 20,948 -537 -2.50 1,190 -6.59 0.3410
2014-11-13 2014-09-30 13F Merck COM 58933Y105 21,485 0 0.00 1,274 2.49 0.3658
2014-08-15 2014-06-30 13F Merck COM 58933Y105 21,485 11,090 106.69 1,243 110.68 0.3648
2014-05-05 2014-03-31 13F/A-1 Merck COM 58933Y105 10,395 700 7.22 590 21.65 0.2779
2014-05-05 2014-03-31 13F Merck COM 58933Y105 590 590
2014-02-14 2013-12-31 13F Merck COM 58933Y105 9,695 -11,165 -53.52 485 -51.16 0.2168
2013-11-13 2013-09-30 13F/A-1 Merck COM 58933Y105 20,860 -4,915 -19.07 993 -17.04 0.3003
2013-11-13 2013-09-30 13F Marvell Technology Grp COM 58933Y105 5,000 57
2013-08-15 2013-06-30 13F/A-1 Merck COM 58933Y105 25,775 25,775 1,197 0.6108
2013-08-15 2013-06-30 13F Merck COM 58933Y105 25,775 1,197,249
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.