Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
AKTIENPREIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionAr Asset Management Inc
Latest Disclosed Ownership155,220 shares
Latest Disclosed Value $ 18,671
Ar Asset Management Inc ownership in 6MK / Merck & Co., Inc.

On May 13, 2026 - Ar Asset Management Inc filed a 13F-HR form disclosing ownership of 155,220 shares of Merck & Co., Inc. (DE:6MK) valued at $16,173,924 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 155,220 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $15,953,512 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 COM 58933Y105 155,220 0 0.00 19 12.50 3.6090
2026-02-09 2025-12-31 13F MERCK COM 58933Y105 155,220 -250 -0.16 16 23.08 3.3374
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 155,470 0 0.00 13 8.33 2.7502
2025-08-06 2025-06-30 13F MERCK COM 58933Y105 155,470 0 0.00 12 -7.69 2.7352
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 155,470 21,300 15.88 14 0.00 3.1692
2025-02-03 2024-12-31 13F MERCK COM 58933Y105 134,170 0 0.00 13 -13.33 3.0238
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 134,170 -150 -0.11 15 -6.25 3.3861
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 134,320 0 0.00 17 -5.88 4.0075
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 134,320 0 0.00 18 21.43 4.3217
2024-02-07 2023-12-31 13F MERCK COM 58933Y105 134,320 -250 -0.19 15 7.69 3.8438
2023-11-06 2023-09-30 13F MERCK COM 58933Y105 134,570 0 0.00 14 -13.33 3.8855
2023-08-08 2023-06-30 13F MERCK COM 58933Y105 134,570 0 0.00 16 7.14 4.1668
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 134,570 0 0.00 14 0.00 3.8538
2023-02-01 2022-12-31 13F MERCK COM 58933Y105 134,570 0 0.00 15 -99.88 4.2402
2022-10-31 2022-09-30 13F MERCK COM 58933Y105 134,570 0 0.00 11,589 -5.54 3.4693
2022-08-03 2022-06-30 13F MERCK COM 58933Y105 134,570 0 0.00 12,269 11.12 3.4674
2022-05-10 2022-03-31 13F MERCK COM 58933Y105 134,570 0 0.00 11,041 7.06 2.7903
2022-02-07 2021-12-31 13F MERCK COM 58933Y105 134,570 0 0.00 10,313 2.03 2.6180
2021-11-04 2021-09-30 13F MERCK COM 58933Y105 134,570 -100 -0.07 10,108 -3.49 2.8304
2021-08-04 2021-06-30 13F Merck COM 58933Y105 134,670 0 0.00 10,473 0.88 2.9296
2021-04-30 2021-03-31 13F MERCK COM 58933Y105 134,670 0 0.00 10,382 -5.76 3.1026
2021-02-10 2020-12-31 13F MERCK COM 58933Y105 134,670 0 0.00 11,016 -1.39 3.5508
2020-11-05 2020-09-30 13F MERCK COM 58933Y105 134,670 0 0.00 11,171 7.27 3.9248
2020-08-03 2020-06-30 13F MERCK COM 58933Y105 134,670 0 0.00 10,414 0.50 3.9492
2020-05-06 2020-03-31 13F MERCK COM 58933Y105 134,670 200 0.15 10,362 -15.27 4.2690
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 134,470 0 0.00 12,230 8.04 4.0953
2019-11-05 2019-09-30 13F MERCK COM 58933Y105 134,470 0 0.00 11,320 0.40 3.9949
2019-08-02 2019-06-30 13F MERCK COM 58933Y105 134,470 0 0.00 11,275 0.81 4.0820
2019-05-10 2019-03-31 13F MERCK COM 58933Y105 134,470 0 0.00 11,184 8.85 4.1874
2019-02-08 2018-12-31 13F/A-1 MERCK COM 58933Y105 134,470 0 0.00 10,275 7.72 4.4121
2019-02-08 2018-12-31 13F MERCK COM 58933Y105 134,470 0 10,275
2018-11-09 2018-09-30 13F MERCK COM 58933Y105 134,470 0 0.00 9,539 16.87 3.5097
2018-08-03 2018-06-30 13F MERCK COM 58933Y105 134,470 0 0.00 8,162 11.43 3.1710
2018-05-08 2018-03-31 13F MERCK COM 58933Y105 134,470 -1,500 -1.10 7,325 -4.26 2.9489
2018-02-09 2017-12-31 13F MERCK COM 58933Y105 135,970 -200 -0.15 7,651 -12.25 2.9457
2017-11-03 2017-09-30 13F MERCK COM 58933Y105 136,170 -200 -0.15 8,719 -0.24 3.4542
2017-08-07 2017-06-30 13F MERCK COM 58933Y105 136,370 0 0.00 8,740 0.87 3.5502
2017-05-10 2017-03-31 13F/A-1 MERCK COM 58933Y105 136,370 0 0.00 8,665 7.93 3.5828
2017-05-10 2017-03-31 13F MERCK COM 58933Y105 136,370 8,665
2017-02-13 2016-12-31 13F MERCK COM 58933Y105 136,370 -3,400 -2.43 8,028 -7.97 3.4249
2016-11-04 2016-09-30 13F MERCK COM 58933Y105 139,770 0 0.00 8,723 8.33 3.7696
2016-08-30 2016-06-30 13F/A-1 MERCK COM 58933Y105 139,770 0 0.00 8,052 8.88 3.3797
2016-08-05 2016-06-30 13F MERCK COM 58933Y105 139,770 8,052
2016-08-30 2016-03-31 13F/A-1 MERCK COM 58933Y105 139,770 0 0.00 7,395 0.16 3.2150
2016-05-06 2016-03-31 13F MERCK COM 58933Y105 139,770 7,395
2016-02-12 2015-12-31 13F MERCK COM 58933Y105 139,770 0 0.00 7,383 6.95 3.3613
2015-11-06 2015-09-30 13F MERCK COM 58933Y105 139,770 0 0.00 6,903 -13.25 3.0685
2015-08-10 2015-06-30 13F MERCK COM 58933Y105 139,770 0 0.00 7,957 -0.96 3.2529
2015-05-12 2015-03-31 13F MERCK COM 58933Y105 139,770 0 0.00 8,034 1.21 3.2207
2015-02-13 2014-12-31 13F MERCK COM 58933Y105 139,770 -100 -0.07 7,938 -4.26 3.1989
2014-11-10 2014-09-30 13F MERCK COM 58933Y105 139,870 0 0.00 8,291 2.47 3.3647
2014-08-06 2014-06-30 13F MERCK COM 58933Y105 139,870 -6,500 -4.44 8,091 -2.62 3.2466
2014-05-09 2014-03-31 13F MERCK COM 58933Y105 146,370 -15,000 -9.30 8,309 2.87 3.4813
2014-02-10 2013-12-31 13F MERCK COM 589331107 161,370 -1,000 -0.62 8,077 4.49 3.4236
2013-11-12 2013-09-30 13F MERCK COM 589331107 162,370 0 0.00 7,730 2.49 3.4237
2013-08-14 2013-06-30 13F MERCK COM 589331107 162,370 162,370 7,542 3.3779
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.