Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionBourgeon Capital Management Llc
Latest Disclosed Ownership162,967 shares
Latest Disclosed Value $ 19,603,546
Bourgeon Capital Management Llc reports 0.85% decrease in ownership of MRK / Merck & Co., Inc.

On April 13, 2026 - Bourgeon Capital Management Llc filed a 13F-HR form disclosing ownership of 162,967 shares of Merck & Co., Inc. (MX:MRK) valued at $19,603,546 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 164,356 shares of Merck & Co., Inc.. This represents a change in shares of -0.85% 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)
2026-04-13 2026-03-31 13F MERCK COM 58933Y105 162,967 -1,389 -0.85 19,604 13.31 3.3922
2026-01-15 2025-12-31 13F MERCK COM 58933Y105 164,356 -2,871 -1.72 17,300 23.26 2.7987
2025-10-21 2025-09-30 13F MERCK COM 58933Y105 167,227 6,321 3.93 14,036 10.19 2.5336
2025-07-18 2025-06-30 13F MERCK COM 58933Y105 160,906 10,748 7.16 12,737 -5.50 2.5139
2025-04-09 2025-03-31 13F MERCK COM 58933Y105 150,158 2,321 1.57 13,478 -8.36 2.9014
2025-01-17 2024-12-31 13F MERCK COM 58933Y105 147,837 1,031 0.70 14,707 -11.78 2.7462
2024-10-16 2024-09-30 13F MERCK COM 58933Y105 146,806 3,316 2.31 16,671 -6.15 3.2070
2024-07-11 2024-06-30 13F MERCK COM 58933Y105 143,490 -66 -0.05 17,764 -6.22 3.4812
2024-04-19 2024-03-31 13F MERCK COM 58933Y105 143,556 1,137 0.80 18,942 22.00 3.7060
2024-01-30 2023-12-31 13F MERCK COM 58933Y105 142,419 -592 -0.41 15,527 5.46 3.4308
2023-11-01 2023-09-30 13F MERCK COM 58933Y105 143,011 91 0.06 14,723 -10.73 3.4558
2023-07-20 2023-06-30 13F MERCK COM 58933Y105 142,920 -245 -0.17 16,492 8.27 3.8466
2023-04-17 2023-03-31 13F MERCK COM 58933Y105 143,165 44 0.03 15,231 -4.08 3.6265
2023-01-20 2022-12-31 13F MERCK COM 58933Y105 143,121 -25,893 -15.32 15,879 9.09 3.8961
2022-10-27 2022-09-30 13F MERCK COM 58933Y105 169,014 1,140 0.68 14,556 -4.89 4.0044
2022-07-27 2022-06-30 13F MERCK COM 58933Y105 167,874 1,170 0.70 15,305 11.90 4.0480
2022-05-03 2022-03-31 13F MERCK COM 58933Y105 166,704 -506 -0.30 13,678 6.73 3.0947
2022-01-31 2021-12-31 13F MERCK COM 58933Y105 167,210 -942 -0.56 12,815 1.46 2.6412
2021-11-09 2021-09-30 13F MERCK COM 58933Y105 168,152 3,065 1.86 12,630 -1.63 2.7002
2021-07-19 2021-06-30 13F MERCK COM 58933Y105 165,087 11,830 7.72 12,839 8.67 2.7625
2021-05-13 2021-03-31 13F MERCK & CO. COM 58933Y105 153,257 9,040 6.27 11,815 0.15 2.6207
2021-01-29 2020-12-31 13F MERCK & CO. COM 58933Y105 144,217 33,729 30.53 11,797 28.72 2.9121
2020-10-28 2020-09-30 13F MERCK & CO. COM 58933Y105 110,488 770 0.70 9,165 8.03 2.7765
2020-07-27 2020-06-30 13F MERCK & CO. COM 58933Y105 109,718 22,520 25.83 8,484 26.46 3.0169
2020-05-07 2020-03-31 13F MERCK & CO. COM 58933Y105 87,198 13,157 17.77 6,709 -0.37 3.4751
2020-02-04 2019-12-31 13F MERCK COM 58933Y105 74,041 -26,525 -26.38 6,734 -20.46 3.1806
2019-11-04 2019-09-30 13F MERCK COM 58933Y105 100,566 7,365 7.90 8,466 8.33 4.5885
2019-07-18 2019-06-30 13F MERCK COM 58933Y105 93,201 -435 -0.46 7,815 0.35 4.5349
2019-04-29 2019-03-31 13F MERCK COM 58933Y105 93,636 -2,036 -2.13 7,788 6.54 4.5668
2019-01-17 2018-12-31 13F MERCK COM 58933Y105 95,672 -10,548 -9.93 7,310 -2.99 4.7816
2018-10-25 2018-09-30 13F MERCK COM 58933Y105 106,220 -19,520 -15.52 7,535 -1.27 3.8862
2018-07-19 2018-06-30 13F MERCK COM 58933Y105 125,740 -1,350 -1.06 7,632 10.24 4.1049
2018-04-27 2018-03-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 127,090 2,325 1.86 6,923 -1.40 3.7843
2018-02-05 2017-12-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 124,765 32,475 35.19 7,021 18.82 3.8368
2017-10-27 2017-09-30 13F MERCK & CO INC NEW COMMON COM 58933Y105 92,290 650 0.71 5,909 0.61 3.4805
2017-08-02 2017-06-30 13F MERCK & CO INC NEW COMMON COM 58933Y105 91,640 -575 -0.62 5,873 0.24 3.6774
2017-04-27 2017-03-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 92,215 4,335 4.93 5,859 13.26 3.6580
2017-01-27 2016-12-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 87,880 6,625 8.15 5,173 2.01 3.2485
2016-10-26 2016-09-30 13F MERCK & CO INC NEW COMMON COM 58933Y105 81,255 -5,995 -6.87 5,071 0.90 3.2493
2016-08-02 2016-06-30 13F MERCK & CO INC NEW COMMON COM 58933Y105 87,250 -1,200 -1.36 5,026 7.39 3.2626
2016-05-11 2016-03-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 88,450 -2,200 -2.43 4,680 -2.26 3.1255
2016-02-03 2015-12-31 13F MERCK & CO INC NEW COMMON COM 58933Y105 90,650 1,200 1.34 4,788 8.37 3.0726
2015-11-02 2015-09-30 13F MERCK & CO INC NEW COMMON COM 58933Y105 89,450 37,600 72.52 4,418 49.66 3.0846
2015-08-11 2015-06-30 13F MERCK AND CO INC SHS COM 58933Y105 51,850 2,500 5.07 2,952 4.05 1.7880
2015-05-01 2015-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 49,350 -1,100 -2.18 2,837 -0.98 1.7361
2015-02-11 2014-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 50,450 -200 -0.39 2,865 -4.60 1.7474
2014-11-04 2014-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 50,650 0 0.00 3,003 2.49 1.7509
2014-08-01 2014-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 50,650 6,700 15.24 2,930 17.43 1.5965
2014-04-23 2014-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 43,950 -29,750 -40.37 2,495 -32.37 1.5718
2014-01-24 2013-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 73,700 1,550 2.15 3,689 7.39 2.3717
2013-10-25 2013-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 72,150 -3,600 -4.75 3,435 -2.39 2.3155
2013-08-08 2013-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 75,750 75,750 3,519 2.5054
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.