Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionHudock, Inc.
Latest Disclosed Ownership31,159 shares
Latest Disclosed Value $ 3,748,210
Hudock, Inc. reports 4.60% increase in ownership of MRK / Merck & Co., Inc.

On May 13, 2026 - Hudock, Inc. filed a 13F-HR form disclosing ownership of 31,159 shares of Merck & Co., Inc. (MX:MRK) valued at $3,748,210 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 29,789 shares of Merck & Co., Inc.. This represents a change in shares of 4.60% 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)
2026-05-13 2026-03-31 13F MERCK COM 58933Y105 31,159 1,370 4.60 3,748 19.55 0.5515
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 29,789 589 2.02 3,136 27.96 0.4620
2025-10-24 2025-09-30 13F MERCK COM 58933Y105 29,200 -453 -1.53 2,451 4.39 0.3722
2025-08-08 2025-06-30 13F MERCK COM 58933Y105 29,653 -1,074 -3.50 2,347 -14.90 0.3774
2025-05-02 2025-03-31 13F MERCK COM 58933Y105 30,727 5,725 22.90 2,758 10.90 0.4823
2025-01-29 2024-12-31 13F MERCK COM 58933Y105 25,002 -521 -2.04 2,487 -14.18 0.4344
2024-10-23 2024-09-30 13F MERCK COM 58933Y105 25,523 -1,306 -4.87 2,898 -12.74 0.5007
2024-08-02 2024-06-30 13F MERCK COM 58933Y105 26,829 65 0.24 3,321 -5.95 0.6193
2024-05-02 2024-03-31 13F MERCK COM 58933Y105 26,764 2,538 10.48 3,532 33.70 0.7779
2024-01-22 2023-12-31 13F MERCK COM 58933Y105 24,226 143 0.59 2,641 6.53 0.5662
2023-11-06 2023-09-30 13F MERCK COM 58933Y105 24,083 -138 -0.57 2,479 -11.27 0.5916
2023-07-31 2023-06-30 13F MERCK COM 58933Y105 24,221 -14 -0.06 2,795 8.38 0.6619
2023-05-08 2023-03-31 13F MERCK COM 58933Y105 24,235 -9,529 -28.22 2,578 -31.18 0.6330
2023-02-08 2022-12-31 13F MERCK COM 58933Y105 33,764 -243 -0.71 3,746 27.94 1.2805
2022-11-02 2022-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 34,007 707 2.12 2,928 -3.53 0.9888
2022-08-02 2022-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 33,300 1,261 3.94 3,035 15.49 1.0142
2022-05-02 2022-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 32,039 -543 -1.67 2,628 5.25 0.7295
2022-01-19 2021-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 32,582 -345 -1.05 2,497 0.97 0.7030
2021-11-09 2021-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 32,927 -149 -0.45 2,473 -3.85 0.7449
2021-08-09 2021-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 33,076 87 0.26 2,572 1.14 0.7648
2021-04-26 2021-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 32,989 10,965 49.79 2,543 41.20 0.7962
2021-02-05 2020-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 22,024 -1,203 -5.18 1,801 -6.49 0.5862
2020-10-23 2020-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 23,227 -35 -0.15 1,926 7.12 0.7126
2020-08-11 2020-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 23,262 -25 -0.11 1,798 0.39 0.6559
2020-04-27 2020-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 23,287 -13,592 -36.86 1,791 -47.23 0.7043
2020-01-21 2019-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 36,879 -4,284 -10.41 3,394 -2.05 1.1270
2019-10-31 2019-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 41,163 771 1.91 3,465 2.33 1.2274
2019-07-30 2019-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 40,392 659 1.66 3,386 2.48 1.2244
2019-04-23 2019-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 39,733 -2,783 -6.55 3,304 3.02 1.1925
2019-01-29 2018-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 42,516 -121 -0.28 3,207 6.05 1.3324
2018-10-16 2018-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 42,637 3,372 8.59 3,024 26.90 1.1727
2018-08-01 2018-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 39,265 591 1.53 2,383 13.15 0.9485
2018-04-27 2018-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 38,674 134 0.35 2,106 -2.86 0.8744
2018-01-30 2017-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 38,540 -237 -0.61 2,168 -12.65 0.9463
2017-10-27 2017-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 38,777 -1,636 -4.05 2,482 -4.17 1.1618
2017-08-08 2017-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 40,413 1,500 3.85 2,590 4.77 1.3366
2017-04-26 2017-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 38,913 5,275 15.68 2,472 24.85 1.3240
2017-02-08 2016-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 33,638 425 1.28 1,980 -4.44 1.1203
2016-11-03 2016-09-30 13F MERCK & CO INC NEWCOM COM 58933Y105 33,213 -3,955 -10.64 2,072 -3.22 1.1735
2016-08-01 2016-06-30 13F MERCK & CO INC NEWCOM COM 58933Y105 37,168 8,097 27.85 2,141 39.21 1.1678
2016-05-05 2016-03-31 13F MERCK & CO INC NEWCOM COM 58933Y105 29,071 1,549 5.63 1,538 5.85 0.8508
2016-02-01 2015-12-31 13F MERCK & CO INC NEWCOM COM 58933Y105 27,522 406 1.50 1,453 8.51 0.6466
2015-11-12 2015-09-30 13F MERCK & CO INC NEWCOM COM 58933Y105 27,116 1,332 5.17 1,339 -8.73 0.6279
2015-08-13 2015-06-30 13F MERCK & CO INC NEWCOM COM 58933Y105 25,784 -1,252 -4.63 1,467 -5.60 0.6695
2015-05-05 2015-03-31 13F MERCK & CO INC NEWCOM COM 58933Y105 27,036 27,036 0.00 1,554 0.6886
2015-02-03 2014-12-31 13F MERCK & CO INC NEWCOM COM 58933Y105 0 -22,973 -100.00 0 -100.00
2014-11-14 2014-09-30 13F MERCK & CO INC NEWCOM COM 58933Y105 22,973 1,404 6.51 1,362 9.13 0.8410
2014-08-14 2014-06-30 13F MERCK & CO INC NEWCOM COM 58933Y105 21,569 250 1.17 1,248 3.14 1.4236
2014-05-15 2014-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 21,319 96 0.45 1,210 13.94 1.0062
2014-02-12 2013-12-31 13F MERCK & CO INC NEWCOM COM 58933Y105 21,223 96 0.45 1,062 5.57 0.9006
2013-10-18 2013-09-30 13F MERCK & CO INC NEWCOM COM 58933Y105 21,127 99 0.47 1,006 2.97 0.9759
2013-07-31 2013-06-30 13F MERCK & CO INC NEWCOM COM 58933Y105 21,028 21,028 977 1.4376
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.