Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionNorthern Oak Wealth Management Inc
Latest Disclosed Ownership85,346 shares
Latest Disclosed Value $ 10,266,767
Northern Oak Wealth Management Inc reports 2.46% increase in ownership of MRK / Merck & Co., Inc.

On May 14, 2026 - Northern Oak Wealth Management Inc filed a 13F-HR form disclosing ownership of 85,346 shares of Merck & Co., Inc. (MX:MRK) valued at $10,266,767 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 83,295 shares of Merck & Co., Inc.. This represents a change in shares of 2.46% 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)
2026-05-14 2026-03-31 13F MERCK COM 58933Y105 85,346 2,051 2.46 10,267 17.08 1.2813
2026-01-29 2025-12-31 13F MERCK COM 58933Y105 83,295 3,837 4.83 8,768 31.47 1.1000
2025-10-31 2025-09-30 13F MERCK COM 58933Y105 79,458 2,264 2.93 6,669 9.13 0.8185
2025-07-16 2025-06-30 13F MERCK COM 58933Y105 77,194 7,088 10.11 6,111 -2.89 0.7737
2025-05-09 2025-03-31 13F MERCK COM 58933Y105 70,106 3,292 4.93 6,293 -5.33 0.8105
2025-01-21 2024-12-31 13F MERCK COM 58933Y105 66,814 -4,115 -5.80 6,647 -17.47 0.8416
2024-10-30 2024-09-30 13F MERCK COM 58933Y105 70,929 -946 -1.32 8,055 -9.49 0.9376
2024-07-26 2024-06-30 13F MERCK COM 58933Y105 71,875 -1,970 -2.67 8,898 -8.68 1.0718
2024-05-01 2024-03-31 13F MERCK COM 58933Y105 73,845 -5,861 -7.35 9,744 12.14 1.1580
2024-01-11 2023-12-31 13F MERCK COM 58933Y105 79,706 -1,519 -1.87 8,690 3.91 1.0380
2023-10-24 2023-09-30 13F MERCK COM 58933Y105 81,225 8,144 11.14 8,362 -0.84 1.0397
2023-07-31 2023-06-30 13F MERCK COM 58933Y105 73,081 -5,329 -6.80 8,433 1.09 1.0045
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 78,410 -5,852 -6.95 8,342 -10.77 0.9992
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 84,262 -7,248 -7.92 9,349 18.63 1.3349
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 91,510 30,819 50.78 7,881 42.44 1.1795
2022-08-16 2022-06-30 13F MERCK COM 58933Y105 60,691 27,920 85.20 5,533 105.76 0.7792
2022-05-24 2022-03-31 13F MERCK COM 58933Y105 32,771 9,726 42.20 2,689 52.27 0.3294
2022-02-16 2021-12-31 13F MERCK COM 58933Y105 23,045 -2,525 -9.87 1,766 -8.07 0.1996
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 25,570 33 0.13 1,921 -3.27 0.2343
2021-08-17 2021-06-30 13F MERCK COM 58933Y105 25,537 4,772 22.98 1,986 24.05 0.2401
2021-05-14 2021-03-31 13F MERCK & CO. COM 58933Y105 20,765 -4,723 -18.53 1,601 -23.21 0.2071
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 25,488 -1,427 -5.30 2,085 -6.63 0.2779
2020-11-16 2020-09-30 13F MERCK & CO. COM 58933Y105 26,915 -363 -1.33 2,233 5.88 0.3257
2020-08-17 2020-06-30 13F MERCK & CO. COM 58933Y105 27,278 7,662 39.06 2,109 39.76 0.3339
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 19,616 -1,128 -5.44 1,509 -20.03 0.2866
2020-01-27 2019-12-31 13F MERCK COM 58933Y105 20,744 -7,800 -27.33 1,887 -21.47 0.2893
2019-10-31 2019-09-30 13F MERCK COM 58933Y105 28,544 334 1.18 2,403 1.61 0.3488
2019-07-30 2019-06-30 13F MERCK COM 58933Y105 28,210 -200 -0.70 2,365 0.08 0.3564
2019-04-24 2019-03-31 13F MERCK COM 58933Y105 28,410 -249 -0.87 2,363 7.90 0.3599
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 28,659 169 0.59 2,190 8.36 0.3665
2018-11-15 2018-09-30 13F MERCK COM 58933Y105 28,490 -400 -1.38 2,021 15.22 0.2951
2018-08-13 2018-06-30 13F MERCK COM 58933Y105 28,890 -457 -1.56 1,754 9.69 0.2747
2018-05-11 2018-03-31 13F MERCK COM 58933Y105 29,347 -609 -2.03 1,599 -5.16 0.2731
2018-02-16 2017-12-31 13F MERCK COM 58933Y105 29,956 1,967 7.03 1,686 -5.92 0.2656
2017-11-15 2017-09-30 13F Merck COM 58933Y105 27,989 -546 -1.91 1,792 -2.02 0.3344
2017-08-14 2017-06-30 13F Merck COM 58933Y105 28,535 -278 -0.96 1,829 -0.11 0.3447
2017-05-17 2017-03-31 13F Merck COM 58933Y105 28,813 604 2.14 1,831 10.23 0.3514
2017-02-15 2016-12-31 13F Merck COM 58933Y105 28,209 -650 -2.25 1,661 -7.77 0.3352
2016-11-15 2016-09-30 13F Merck COM 58933Y105 28,859 -260 -0.89 1,801 7.33 0.3909
2016-08-15 2016-06-30 13F Merck COM 58933Y105 29,119 -500 -1.69 1,678 7.08 0.3642
2016-05-03 2016-03-31 13F Merck COM 58933Y105 29,619 630 2.17 1,567 2.35 0.3580
2016-02-11 2015-12-31 13F Merck COM 58933Y105 28,989 -937 -3.13 1,531 3.59 0.3597
2015-11-10 2015-09-30 13F Merck COM 58933Y105 29,926 124 0.42 1,478 -12.91 0.3667
2015-08-12 2015-06-30 13F Merck COM 58933Y105 29,802 -43 -0.14 1,697 -1.05 0.4637
2015-05-04 2015-03-31 13F Merck COM 58933Y105 29,845 29,845 0.00 1,715 0.4658
2015-02-03 2014-12-31 13F Merck COM 58933Y105 0 -36,495 -100.00 0 -100.00
2014-11-06 2014-09-30 13F Merck COM 58933Y105 36,495 222 0.61 2,163 3.10 0.5965
2014-08-06 2014-06-30 13F Merck COM 58933Y105 36,273 -100 -0.27 2,098 1.60 0.5679
2014-04-28 2014-03-31 13F Merck COM 58933Y105 36,373 288 0.80 2,065 14.34 0.6050
2014-02-11 2013-12-31 13F/A-1 Merck COM 58933Y105 36,085 -79 -0.22 1,806 4.88 0.5303
2014-02-07 2013-12-31 13F Merck COM 58933Y105 36,164 1,722
2013-10-30 2013-09-30 13F Merck COM 58933Y105 36,164 -100 -0.28 1,722 2.26 0.5652
2013-08-09 2013-06-30 13F Merck COM 58933Y105 36,264 36,264 1,684 0.5779
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.