머크 앤 컴퍼니(Merck & Co., Inc.)
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionGlen Eagle Advisors, LLC
Latest Disclosed Ownership8,168 shares
Latest Disclosed Value $ 982,484
Glen Eagle Advisors, LLC reports 3.84% increase in ownership of MRK / Merck & Co., Inc.

On May 15, 2026 - Glen Eagle Advisors, LLC filed a 13F-HR form disclosing ownership of 8,168 shares of Merck & Co., Inc. (MX:MRK) valued at $982,484 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,866 shares of Merck & Co., Inc.. This represents a change in shares of 3.84% 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)
2026-05-15 2026-03-31 13F MERCK COM 58933Y105 8,168 302 3.84 982 18.74 0.1376
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 7,866 -265 -3.26 828 21.26 0.1127
2025-11-14 2025-09-30 13F MERCK COM 58933Y105 8,131 182 2.29 682 8.43 0.0949
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 7,949 -568 -6.67 629 -17.67 0.0968
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 8,517 -162 -1.87 764 -11.47 0.1265
2025-02-18 2024-12-31 13F MERCK COM 58933Y105 8,679 1 0.01 863 -12.39 0.1432
2024-11-15 2024-09-30 13F MERCK COM 58933Y105 8,678 161 1.89 985 -6.55 0.1663
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 8,517 -457 -5.09 1,054 -10.98 0.1930
2024-07-03 2024-03-31 13F MERCK COM 58933Y105 8,974 -94 -1.04 1,184 19.84 0.2246
2024-08-13 2023-12-31 13F MERCK COM 58933Y105 9,068 -44 -0.48 989 5.33 0.2054
2024-08-13 2023-09-30 13F MERCK COM 58933Y105 9,112 -3,763 -29.23 938 -36.84 0.2175
2024-08-13 2023-06-30 13F MERCK COM 58933Y105 12,875 -1,669 -11.48 1,486 -4.01 0.3424
2024-08-13 2023-03-31 13F MERCK COM 58933Y105 14,544 6,663 84.55 1,547 77.00 0.3884
2024-08-13 2022-12-31 13F MERCK COM 58933Y105 7,881 91 1.17 874 30.45 0.2387
2024-08-13 2022-09-30 13F MERCK COM 58933Y105 7,790 149 1.95 671 -3.74 0.1948
2024-08-13 2022-06-30 13F MERCK COM 58933Y105 7,641 422 5.85 697 17.57 0.1890
2024-08-13 2022-03-31 13F MERCK COM 58933Y105 7,219 -217 -2.92 592 4.04 0.1547
2024-08-13 2021-12-31 13F MERCK COM 58933Y105 7,436 -617 -7.66 570 -5.79 0.1482
2024-08-13 2021-09-30 13F MERCK COM 58933Y105 8,053 0 0.00 605 -3.51 0.1750
2024-08-13 2021-06-30 13F MERCK COM 58933Y105 8,053 336 4.35 626 5.39 0.1946
2024-08-13 2021-03-31 13F MERCK COM 58933Y105 7,717 24 0.31 595 -5.56 0.2077
2024-08-13 2020-12-31 13F MERCK COM 58933Y105 7,693 -1,227 -13.76 629 -14.88 0.2476
2024-08-13 2020-09-30 13F MERCK COM 58933Y105 8,920 470 5.56 740 13.17 0.3315
2024-08-13 2020-06-30 13F MERCK COM 58933Y105 8,450 -24 -0.28 653 0.31 0.3356
2024-08-13 2020-03-31 13F MERCK MERCK &CO INC 58933Y105 8,474 889 11.72 652 -5.52 0.4573
2024-08-13 2019-12-31 13F MERCK COM 58933Y105 7,585 296 4.06 690 12.40 0.3686
2024-08-13 2019-09-30 13F MERCK COM 58933Y105 7,289 -26 -0.36 614 0.00 0.4052
2024-08-13 2019-06-30 13F MERCK COM 58933Y105 7,315 -63 -0.85 613 0.00 0.4195
2024-08-13 2019-03-31 13F MERCK COM 58933Y105 7,378 915 14.16 614 24.34 0.4461
2024-08-13 2018-12-31 13F MERCK COM 58933Y105 6,463 109 1.72 494 9.56 0.4161
2024-08-13 2018-09-30 13F MERCK COM 58933Y105 6,354 310 5.13 451 22.95 0.3220
2024-08-13 2018-06-30 13F MERCK COM 58933Y105 6,044 538 9.77 367 22.41 0.2875
2024-08-14 2018-03-31 13F/A-1 MERCK MERCK &CO INC 58933Y105 5,506 -110 -1.96 300 -5.38 0.2475
2024-08-13 2018-03-31 13F MERCK COM 58933Y105 97,418 91,802 300 0.2475
2024-08-13 2017-12-31 13F MERCK COM 58933Y105 5,616 28 0.50 316 -11.48 0.2748
2024-08-13 2017-09-30 13F MERCK COM 58933Y105 5,588 -60 -1.06 358 -1.11 0.3343
2024-08-13 2017-06-30 13F MERCK COM 58933Y105 5,648 228 4.21 362 4.94 0.2895
2024-08-13 2017-03-31 13F MERCK COM 58933Y105 5,420 -165 -2.95 344 4.88 0.2958
2024-08-13 2016-12-31 13F MERCK COM 58933Y105 5,585 5,585 329 0.2964
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.