Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionHenshaw Capital LLC
Latest Disclosed Ownership5,500 shares
Latest Disclosed Value $ 661,595
Henshaw Capital LLC ownership in MRK / Merck & Co., Inc.

On May 28, 2026 - Henshaw Capital LLC filed a 13F-HR form disclosing ownership of 5,500 shares of Merck & Co., Inc. (MX:MRK) valued at $661,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 28, 2026 disclosing 5,500 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)
2026-05-28 2026-03-31 13F MERCK COM 58933Y105 5,500 0 0.00 662 14.36 0.0245
2026-05-28 2025-12-31 13F MERCK COM 58933Y105 5,500 0 0.00 579 25.38 0.0208
2026-05-28 2025-09-30 13F MERCK COM 58933Y105 5,500 0 0.00 462 5.98 0.0172
2026-05-28 2025-06-30 13F MERCK COM 58933Y105 5,500 0 0.00 435 -11.76 0.0173
2026-05-28 2025-03-31 13F MERCK COM 58933Y105 5,500 0 0.00 494 -9.87 0.0217
2026-05-28 2024-12-31 13F MERCK COM 58933Y105 5,500 0 0.00 547 -12.34 0.0228
2026-05-28 2024-09-30 13F MERCK COM 58933Y105 5,500 0 0.00 625 -8.24 0.0262
2026-05-28 2024-06-30 13F MERCK COM 58933Y105 5,500 0 0.00 681 -6.21 0.0307
2026-05-28 2024-03-31 13F MERCK COM 58933Y105 5,500 0 0.00 726 21.04 0.0340
2026-05-28 2023-12-31 13F MERCK COM 58933Y105 5,500 0 0.00 600 5.83 0.0311
2026-05-28 2023-09-30 13F MERCK COM 58933Y105 5,500 0 0.00 566 -10.73 0.0328
2026-05-28 2023-06-30 13F MERCK COM 58933Y105 5,500 0 0.00 635 8.38 0.0364
2026-05-28 2023-03-31 13F MERCK COM 58933Y105 5,500 0 0.00 585 -4.10 0.0360
2026-05-28 2022-12-31 13F MERCK COM 58933Y105 5,500 -6,980 -55.93 610 -43.20 0.0406
2026-05-28 2022-09-30 13F MERCK COM 58933Y105 12,480 -160 -1.27 1,075 -6.77 0.0794
2026-05-28 2022-06-30 13F MERCK COM 58933Y105 12,640 -1,495 -10.58 1,152 -0.60 0.0798
2026-05-28 2022-03-31 13F MERCK COM 58933Y105 14,135 0 0.00 1,160 7.02 0.0678
2026-05-28 2021-12-31 13F MERCK COM 58933Y105 14,135 966 7.34 1,083 9.50 0.0606
2026-05-28 2021-09-30 13F MERCK COM 58933Y105 13,169 0 0.00 989 -3.42 0.0618
2026-05-28 2021-06-30 13F MERCK COM 58933Y105 13,169 0 0.00 1,024 0.89 0.0644
2026-05-28 2021-03-31 13F MERCK & CO. COM 58933Y105 13,169 0 0.00 1,015 -5.76 0.0679
2026-05-28 2020-12-31 13F MERCK & CO. COM 58933Y105 13,169 -1,455 -9.95 1,077 -11.21 0.0811
2026-05-28 2020-09-30 13F MERCK & CO. COM 58933Y105 14,624 1,094 8.09 1,213 15.97 0.0939
2026-05-28 2020-06-30 13F MERCK & CO. COM 58933Y105 13,530 1,046 8.38 1,046 8.96 0.0886
2026-05-28 2020-03-31 13F MERCK & CO. COM 58933Y105 12,484 2,840 29.45 961 9.46 0.0964
2026-05-28 2019-12-31 13F MERCK COM 58933Y105 9,644 400 4.33 877 12.72 0.0689
2026-05-28 2019-09-30 13F MERCK COM 58933Y105 9,244 -619 -6.28 778 -5.93 0.0659
2026-05-28 2019-06-30 13F MERCK COM 58933Y105 9,863 22 0.22 827 1.10 0.0703
2026-05-28 2019-03-31 13F MERCK COM 58933Y105 9,841 23 0.23 818 9.07 0.0716
2026-05-28 2018-12-31 13F MERCK COM 58933Y105 9,818 22 0.22 750 8.07 0.0737
2026-05-28 2018-09-30 13F MERCK COM 58933Y105 9,796 3,196 48.42 695 73.50 0.0585
2026-05-28 2018-06-30 13F MERCK COM 58933Y105 6,600 0 0.00 401 11.42 0.0364
2026-05-28 2018-03-31 13F MERCK COM 58933Y105 6,600 0 0.00 360 -3.23 0.0335
2026-05-28 2017-12-31 13F MERCK COM 58933Y105 6,600 0 0.00 371 -12.09 0.0354
2026-05-28 2017-09-30 13F MERCK COM 58933Y105 6,600 0 0.00 423 0.00 0.0433
2026-05-28 2017-06-30 13F MERCK COM 58933Y105 6,600 0 0.00 423 0.72 0.0443
2026-05-28 2017-03-31 13F MERCK COM 58933Y105 6,600 0 0.00 419 7.99 0.0459
2026-05-28 2016-12-31 13F MERCK COM 58933Y105 6,600 0 0.00 389 -5.60 0.0459
2026-05-28 2016-09-30 13F MERCK COM 58933Y105 6,600 0 0.00 412 8.16 0.0508
2026-05-28 2016-06-30 13F MERCK COM 58933Y105 6,600 0 0.00 380 8.88 0.0495
2026-05-28 2016-03-31 13F MERCK & CO INC COM 58933Y105 6,600 6,600 349 0.0464
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.