Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionTraynor Capital Management, Inc.
Latest Disclosed Ownership22,515 shares
Latest Disclosed Value $ 2,658,989
Traynor Capital Management, Inc. reports 0.12% decrease in ownership of MRK / Merck & Co., Inc.

On May 14, 2026 - Traynor Capital Management, Inc. filed a 13F-HR form disclosing ownership of 22,515 shares of Merck & Co., Inc. (MX:MRK) valued at $2,658,989 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 22,541 shares of Merck & Co., Inc.. This represents a change in shares of -0.12% 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 22,515 -26 -0.12 2,659 12.06 0.1560
2026-01-12 2025-12-31 13F MERCK COM 58933Y105 22,541 -242 -1.06 2,373 24.06 0.1267
2025-11-03 2025-09-30 13F MERCK COM 58933Y105 22,783 1,774 8.44 1,912 11.29 0.1091
2025-08-07 2025-06-30 13F MERCK COM 58933Y105 21,009 -4,107 -16.35 1,719 -23.78 0.1219
2025-05-12 2025-03-31 13F MERCK COM 58933Y105 25,116 -2,270 -8.29 2,254 -17.25 0.1900
2025-01-17 2024-12-31 13F MERCK COM 58933Y105 27,386 13,976 104.22 2,724 78.98 0.1820
2024-10-25 2024-09-30 13F MERCK COM 58933Y105 13,410 2,314 20.85 1,523 10.85 0.0913
2024-07-24 2024-06-30 13F MERCK COM 58933Y105 11,096 626 5.98 1,374 -0.58 0.1029
2024-04-12 2024-03-31 13F MERCK COM 58933Y105 10,470 207 2.02 1,382 23.52 0.1197
2024-01-18 2023-12-31 13F MERCK COM 58933Y105 10,263 -282 -2.67 1,119 3.04 0.1149
2023-10-16 2023-09-30 13F MERCK COM 58933Y105 10,545 76 0.73 1,086 -10.18 0.1361
2023-07-28 2023-06-30 13F MERCK COM 58933Y105 10,469 126 1.22 1,208 9.82 0.1482
2023-04-21 2023-03-31 13F MERCK COM 58933Y105 10,343 104 1.02 1,100 -3.08 0.1589
2023-01-27 2022-12-31 13F MERCK COM 58933Y105 10,239 15 0.15 1,136 28.98 0.1602
2022-11-15 2022-09-30 13F/A-3 MERCK &CO. INC COM COM 58933Y105 10,224 170 1.69 880 -3.93 0.1571
2022-10-20 2022-09-30 13F MERCK & CO INC COM COM 58933Y105 31,123 21,069 2,680 1.0125
2022-07-28 2022-06-30 13F MERCK &CO. INC COM COM 58933Y105 10,054 327 3.36 916 14.79 0.1588
2022-04-13 2022-03-31 13F MERCK &CO. INC COM COM 58933Y105 9,727 194 2.04 798 9.32 0.1035
2022-02-01 2021-12-31 13F MERCK &CO. INC COM COM 58933Y105 9,533 1,884 24.63 730 27.18 0.0864
2021-10-25 2021-09-30 13F MERCK &CO. INC COM COM 58933Y105 7,649 -742 -8.84 574 -12.90 0.0786
2021-07-21 2021-06-30 13F/A-1 MERCK &CO. INC COM COM 58933Y105 8,391 -120 -1.41 659 0.46 0.0921
2021-07-21 2021-06-30 13F MERCK &CO. INC COM COM 58933Y105 8,391 -120 659 0.0921
2021-05-04 2021-03-31 13F MERCK &CO. INC COM COM 58933Y105 8,511 -261 -2.98 656 -8.51 0.1082
2021-01-14 2020-12-31 13F MERCK &CO. INC COM COM 58933Y105 8,772 851 10.74 717 13.45 0.1272
2020-10-26 2020-09-30 13F MERCK &CO. INC COM COM 58933Y105 7,921 805 11.31 632 14.91 0.1446
2020-08-10 2020-06-30 13F MERCK &CO. INC COM COM 58933Y105 7,116 7 0.10 550 0.73 0.1324
2020-04-29 2020-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 7,109 -42 -0.59 546 -16.00 0.1939
2020-01-24 2019-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 7,151 -588 -7.60 650 -0.15 0.1735
2019-11-01 2019-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 7,739 439 6.01 651 5.34 0.2037
2019-07-26 2019-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 7,300 -2,690 -26.93 618 -25.54 0.2009
2019-04-12 2019-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,990 85 0.86 830 9.79 0.2779
2019-01-24 2018-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,905 156 1.60 756 9.41 0.3150
2018-10-24 2018-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 9,749 618 6.77 691 25.18 0.2244
2018-08-03 2018-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 9,131 7 0.08 552 11.07 0.2015
2018-05-01 2018-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,124 -97 -1.05 497 -4.05 0.2017
2018-01-31 2017-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,221 -981 -9.62 518 -20.92 0.2211
2017-10-27 2017-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 10,202 49 0.48 655 1.39 0.3115
2017-08-02 2017-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 10,153 709 7.51 646 6.95 0.3189
2017-05-11 2017-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,444 252 2.74 604 7.09 0.3374
2017-02-07 2016-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,192 178 1.97 564 1.26 0.3739
2016-11-10 2016-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 9,014 -105 -1.15 557 5.49 0.3937
2016-07-27 2016-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 9,119 -541 -5.60 528 3.33 0.4130
2016-04-18 2016-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 9,660 -798 -7.63 511 -7.43 0.4073
2016-02-16 2015-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 10,458 3,047 41.11 552 50.82 0.3970
2016-02-23 2015-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 7,411 -897 -10.80 366 -22.46 0.3162
2016-02-23 2015-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 8,308 8,308 472 0.3941
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.