Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionNeville Rodie & Shaw Inc
Latest Disclosed Ownership87,824 shares
Latest Disclosed Value $ 10,564
Neville Rodie & Shaw Inc ownership in MRK / Merck & Co., Inc.

On April 1, 2026 - Neville Rodie & Shaw Inc filed a 13F-HR form disclosing ownership of 87,824 shares of Merck & Co., Inc. (MX:MRK) valued at $10,564 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 6, 2026 disclosing 87,824 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-01 2026-03-31 13F MERCK COM 58933Y105 87,824 0 0.00 11 11.11 0.4476
2026-01-06 2025-12-31 13F MERCK COM 58933Y105 87,824 -35,140 -28.58 9 -10.00 0.6527
2025-10-01 2025-09-30 13F MERCK COM 58933Y105 122,964 -19,600 -13.75 10 -9.09 0.7462
2025-07-02 2025-06-30 13F MERCK COM 58933Y105 142,564 -24,627 -14.73 11 -26.67 0.8374
2025-04-01 2025-03-31 13F MERCK COM 58933Y105 167,191 -10,174 -5.74 15 -11.76 1.1751
2025-01-06 2024-12-31 13F MERCK COM 58933Y105 177,365 1,382 0.79 18 -10.53 1.2867
2024-10-01 2024-09-30 13F MERCK COM 58933Y105 175,983 -7,060 -3.86 20 -13.64 1.4709
2024-07-01 2024-06-30 13F MERCK COM 58933Y105 183,043 -1,725 -0.93 23 -8.33 1.7195
2024-04-09 2024-03-31 13F MERCK COM 58933Y105 184,768 -845 -0.46 24 20.00 1.8612
2024-01-02 2023-12-31 13F MERCK COM 58933Y105 185,613 -2,355 -1.25 20 5.26 1.6547
2023-10-10 2023-09-30 13F MERCK COM 58933Y105 187,968 -380 -0.20 19 -9.52 1.7262
2023-07-06 2023-06-30 13F MERCK COM 58933Y105 188,348 -4,611 -2.39 22 5.00 1.8705
2023-04-04 2023-03-31 13F MERCK COM 58933Y105 192,959 -600 -0.31 21 -4.76 1.8601
2023-01-03 2022-12-31 13F MERCK COM 58933Y105 193,559 3,300 1.73 21 -99.87 2.0171
2022-10-04 2022-09-30 13F MERCK COM 58933Y105 190,259 -3,964 -2.04 16,385 -7.47 1.6112
2022-07-06 2022-06-30 13F MERCK COM 58933Y105 194,223 -5,631 -2.82 17,707 6.08 1.5853
2022-04-05 2022-03-31 13F MERCK COM 58933Y105 199,854 -1,590 -0.79 16,692 8.12 1.2406
2022-01-05 2021-12-31 13F MERCK COM 58933Y105 201,444 -1,195 -0.59 15,439 1.44 1.0940
2021-10-06 2021-09-30 13F MERCK COM 58933Y105 202,639 -26,440 -11.54 15,220 -14.57 1.1829
2021-07-06 2021-06-30 13F MERCK COM 58933Y105 229,079 -11,210 -4.67 17,816 -3.82 1.3723
2021-04-08 2021-03-31 13F MERCK COM 58933Y105 240,289 -2,360 -0.97 18,524 -6.67 1.5345
2021-03-04 2020-12-31 13F MERCK COM 58933Y105 242,649 -10,666 -4.21 19,848 -5.54 1.7189
2020-10-01 2020-09-30 13F MERCK COM 58933Y105 253,315 -1,426 -0.56 21,013 6.67 1.9828
2020-07-15 2020-06-30 13F MERCK COM 58933Y105 254,741 -650 -0.25 19,699 0.25 2.0347
2020-04-01 2020-03-31 13F/A-1 MERCK COM 58933Y105 255,391 -276 -0.11 19,650 -15.49 2.3926
2020-04-01 2020-03-31 13F MERCK COM 58933Y105 255,667 0 23,253 1,307,432.4552
2020-01-08 2019-12-31 13F MERCK COM 58933Y105 255,667 -1,115 -0.43 23,253 7.57 2.2805
2019-10-02 2019-09-30 13F MERCK COM 58933Y105 256,782 -5,525 -2.11 21,616 -1.72 2.2876
2019-07-01 2019-06-30 13F MERCK COM 58933Y105 262,307 -4,593 -1.72 21,995 -0.91 2.3283
2019-04-08 2019-03-31 13F MERCK COM 58933Y105 266,900 -4,745 -1.75 22,198 6.94 2.3527
2019-01-03 2018-12-31 13F MERCK COM 58933Y105 271,645 -3,235 -1.18 20,757 6.45 2.5186
2018-10-09 2018-09-30 13F MERCK COM 58933Y105 274,880 -4,610 -1.65 19,500 14.94 1.9251
2018-07-03 2018-06-30 13F MERCK COM 58933Y105 279,490 1,318 0.47 16,965 11.96 1.7894
2018-04-12 2018-03-31 13F MERCK COM 58933Y105 278,172 -3,401 -1.21 15,153 -4.36 1.6706
2018-01-03 2017-12-31 13F MERCK COM 58933Y105 281,573 -5,350 -1.86 15,844 -13.76 1.6700
2017-10-03 2017-09-30 13F MERCK COM 58933Y105 286,923 -7,807 -2.65 18,372 -2.74 2.0479
2017-07-03 2017-06-30 13F MERCK COM 58933Y105 294,730 -1,900 -0.64 18,889 0.22 2.1563
2017-05-09 2017-03-31 13F MERCK COM 58933Y105 296,630 -6,947 -2.29 18,848 5.47 2.1582
2017-01-27 2016-12-31 13F MERCK COM 58933Y105 303,577 -567 -0.19 17,871 -5.85 2.1070
2016-10-27 2016-09-30 13F MERCK COM 58933Y105 304,144 -1,475 -0.48 18,982 7.81 2.2341
2016-07-13 2016-06-30 13F MERCK COM 58933Y105 305,619 -4,729 -1.52 17,607 7.23 2.1089
2016-04-14 2016-03-31 13F MERCK COM 58933Y105 310,348 -2,775 -0.89 16,420 -0.72 1.9950
2016-01-22 2015-12-31 13F MERCK COM 58933Y105 313,123 -550 -0.18 16,539 6.76 1.9881
2015-10-06 2015-09-30 13F MERCK COM 58933Y105 313,673 -6,596 -2.06 15,492 -15.03 1.8987
2015-07-17 2015-06-30 13F MERCK COM 58933Y105 320,269 -16,026 -4.77 18,233 -5.68 1.9981
2015-04-09 2015-03-31 13F MERCK COM 58933Y105 336,295 -212 -0.06 19,331 1.16 2.0089
2015-01-09 2014-12-31 13F MERCK COM 58933Y105 336,507 -2,157 -0.64 19,110 -4.81 1.9343
2014-10-10 2014-09-30 13F MERCK COM 58933Y105 338,664 12,183 3.73 20,076 6.30 1.9793
2014-07-10 2014-06-30 13F MERCK COM 58933Y105 326,481 -208 -0.06 18,887 1.84 1.8964
2014-04-08 2014-03-31 13F MERCK COM 58933Y105 326,689 -10,147 -3.01 18,546 10.01 2.0075
2014-01-13 2013-12-31 13F MERCK COM 58933Y105 336,836 -622 -0.18 16,859 4.94 1.8240
2013-10-10 2013-09-30 13F MERCK COM 58933Y105 337,458 -4,803 -1.40 16,066 1.06 1.8714
2014-01-13 2013-06-30 13F/A-1 MERCK COM 58933Y105 342,261 342,261 15,898 1.9245
2013-07-03 2013-06-30 13F MERCK COM 58933Y105 342,261 15,898
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.