Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionWhalerock Point Partners, Llc
Latest Disclosed Ownership17,865 shares
Latest Disclosed Value $ 2,148,981
Whalerock Point Partners, Llc ownership in MRK / Merck & Co., Inc.

On May 15, 2026 - Whalerock Point Partners, Llc filed a 13F-HR form disclosing ownership of 17,865 shares of Merck & Co., Inc. (MX:MRK) valued at $2,148,981 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 17,865 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-05-15 2026-03-31 13F Merck COM 58933Y105 17,865 0 0.00 2,149 14.26 0.4147
2026-02-13 2025-12-31 13F Merck COM 58933Y105 17,865 750 4.38 1,880 30.92 0.3577
2025-11-12 2025-09-30 13F Merck COM 58933Y105 17,115 425 2.55 1,436 8.71 0.2917
2025-08-13 2025-06-30 13F Merck COM 58933Y105 16,690 200 1.21 1,321 -10.74 0.2857
2025-05-15 2025-03-31 13F Merck COM 58933Y105 16,490 -875 -5.04 1,480 -14.30 0.3514
2025-02-14 2024-12-31 13F Merck COM 58933Y105 17,365 -870 -4.77 1,727 -16.57 0.4016
2024-11-13 2024-09-30 13F Merck COM 58933Y105 18,235 0 0.00 2,071 -8.29 0.4927
2024-08-13 2024-06-30 13F Merck COM 58933Y105 18,235 0 0.00 2,257 -6.19 0.6042
2024-05-15 2024-03-31 13F Merck COM 58933Y105 18,235 0 0.00 2,406 21.09 0.6564
2024-02-14 2023-12-31 13F/A-1 Merck COM 58933Y105 18,235 0 0.00 1,988 5.86 0.6146
2024-02-14 2023-12-31 13F Merck COM 58933Y105 18,235 0 1,988 0.6146
2023-11-14 2023-09-30 13F Merck COM 58933Y105 18,235 488 2.75 1,877 -8.30 0.6503
2023-08-14 2023-06-30 13F Merck COM 58933Y105 17,747 -36 -0.20 2,048 8.25 0.6947
2023-05-10 2023-03-31 13F Merck COM 58933Y105 17,783 -150 -0.84 1,892 -4.93 0.7032
2023-02-14 2022-12-31 13F Merck COM 58933Y105 17,933 545 3.13 1,990 198,800.00 0.8088
2022-11-16 2022-09-30 13F/A-1 Merck COM 58933Y105 17,388 765 4.60 1 0.00 0.6578
2022-11-15 2022-09-30 13F Merck COM 58933Y105 1,497 -15,126 1,497 0.6450
2022-08-12 2022-06-30 13F Merck COM 58933Y105 16,623 50 0.30 2 -99.93 0.6408
2022-05-16 2022-03-31 13F Merck COM 58933Y105 16,573 125 0.76 1,360 7.86 0.4817
2022-02-15 2021-12-31 13F Merck COM 58933Y105 16,448 725 4.61 1,261 125,900.00 0.4320
2021-11-12 2021-09-30 13F Merck COM 58933Y105 15,723 875 5.89 1 -99.91 0.4575
2021-08-10 2021-06-30 13F Merck COM 58933Y105 14,848 0 0.00 1,155 0.87 0.4439
2021-05-13 2021-03-31 13F Merck COM 58933Y105 14,848 525 3.67 1,145 -2.39 0.5034
2021-02-12 2020-12-31 13F Merck COM 58933Y105 14,323 13,259 1,246.15 1,172 10.15 0.5561
2020-11-13 2020-09-30 13F Merck COM 58933Y105 1,064 -11,069 -91.23 1,064 13.43 0.5870
2020-08-11 2020-06-30 13F Merck COM 58933Y105 12,133 -1,107 -8.36 938 -7.95 0.5534
2020-05-15 2020-03-31 13F Merck COM 58933Y105 13,240 0 0.00 1,019 -15.37 0.7290
2020-02-12 2019-12-31 13F Merck COM 58933Y105 13,240 -822 -5.85 1,204 1.69 0.6401
2019-11-12 2019-09-30 13F Merck COM 58933Y105 14,062 29 0.21 1,184 0.59 0.6382
2019-08-09 2019-06-30 13F Merck COM 58933Y105 14,033 0 0.00 1,177 0.86 0.6723
2019-05-13 2019-03-31 13F Merck COM 58933Y105 14,033 4,130 41.70 1,167 54.16 0.7631
2019-03-04 2018-12-31 13F Merck COM 58933Y105 9,903 0 0.00 757 7.68 0.7043
2019-03-04 2018-09-30 13F Merck COM 58933Y105 9,903 -95 -0.95 703 15.82 0.5102
2019-03-04 2018-06-30 13F Merck COM 58933Y105 9,998 -7,570 -43.09 607 -36.51 0.4848
2018-04-05 2018-03-31 13F Merck COM 58933Y105 17,568 -1,946 -9.97 956 -12.93 0.3063
2018-01-16 2017-12-31 13F Merck COM 58933Y105 19,514 4,580 30.67 1,098 14.85 0.3476
2017-10-31 2017-09-30 13F Merck COM 58933Y105 14,934 998 7.16 956 7.05 0.3375
2017-08-08 2017-06-30 13F Merck COM 58933Y105 13,936 -2,240 -13.85 893 -13.22 0.3278
2017-04-19 2017-03-31 13F Merck COM 58933Y105 16,176 150 0.94 1,029 9.00 0.3842
2017-03-01 2016-12-31 13F Merck COM 58933Y105 16,026 -1,030 -6.04 944 -11.19 0.3715
2016-11-18 2016-09-30 13F MERCK & CO INC COM 58933Y105 17,056 630 3.84 1,063 22.47 0.4398
2016-05-25 2016-03-31 13F MERCK & CO INC COM 58933Y105 16,426 2,400 17.11 868 17.30 0.3745
2016-02-10 2015-12-31 13F MERCK & CO INC COM 58933Y105 14,026 1,050 8.09 740 15.63 0.3221
2015-11-09 2015-09-30 13F MERCK & CO INC COM 58933Y105 12,976 1,479 12.86 640 -2.14 0.2760
2015-07-28 2015-06-30 13F MERCK & CO INC COM 58933Y105 11,497 624 5.74 654 4.81 0.2703
2015-06-09 2015-03-31 13F MERCK & CO INC COM 58933Y105 10,873 -200 -1.81 624 -0.64 0.2542
2015-02-24 2014-12-31 13F MERCK & CO INC COM 58933Y105 11,073 625 5.98 628 1.45 0.2653
2014-11-17 2014-09-30 13F MERCK & CO INC COM 58933Y105 10,448 -1,270 -10.84 619 -8.57 0.2793
2014-08-26 2014-06-30 13F MERCK & CO INC COM 58933Y105 11,718 1,270 12.16 677 14.17 0.3217
2014-05-29 2014-03-31 13F MERCK & CO INC COM 58933Y105 10,448 475 4.76 593 18.84 0.3021
2014-02-18 2013-12-31 13F MERCK & CO INC COM 58933Y105 9,973 9,973 499 0.2609
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.