Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DELAT PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionFirst Foundation Advisors
Latest Disclosed Ownership18,637 shares
Latest Disclosed Value $ 2,241,825
First Foundation Advisors reports 26.79% increase in ownership of 6MK / Merck & Co., Inc.

On May 4, 2026 - First Foundation Advisors filed a 13F-HR form disclosing ownership of 18,637 shares of Merck & Co., Inc. (DE:6MK) valued at $1,941,975 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 14,699 shares of Merck & Co., Inc.. This represents a change in shares of 26.79% during the quarter. The current value of the position is $1,915,511 USD.

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)
2026-05-04 2026-03-31 13F MERCK COM 58933Y105 18,637 3,938 26.79 2,242 44.86 0.0903
2026-02-04 2025-12-31 13F MERCK COM 58933Y105 14,699 403 2.82 1,547 29.02 0.0583
2025-11-17 2025-09-30 13F MERCK COM 58933Y105 14,296 948 7.10 1,200 13.54 0.0443
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 13,348 2,236 20.12 1,057 5.92 0.0392
2025-05-08 2025-03-31 13F MERCK COM 58933Y105 11,112 -1,689 -13.19 997 -21.68 0.0406
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 12,801 -743 -5.49 1,273 -17.23 0.0479
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 13,544 -1,231 -8.33 1,538 -15.91 0.0579
2024-08-06 2024-06-30 13F MERCK COM 58933Y105 14,775 -705 -4.55 1,829 -10.43 0.0699
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 15,480 624 4.20 2,043 26.13 0.0817
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 14,856 -5,921 -28.50 1,620 -24.28 0.0738
2023-11-15 2023-09-30 13F MERCK COM 58933Y105 20,777 -672 -3.13 2,139 -13.58 0.0999
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 21,449 50 0.23 2,475 8.70 0.1070
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 21,399 -15,979 -42.75 2,277 -45.12 0.1047
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 37,378 616 1.68 4,147 30.99 0.1986
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 36,762 5,468 17.47 3,166 10.97 0.1550
2022-08-12 2022-06-30 13F MERCK COM 58933Y105 31,294 -11 -0.04 2,853 11.05 0.1260
2022-05-05 2022-03-31 13F MERCK COM 58933Y105 31,305 5,789 22.69 2,569 31.34 0.0927
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 25,516 2,711 11.89 1,956 14.19 0.0672
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 22,805 1,472 6.90 1,713 3.25 0.0639
2021-08-13 2021-06-30 13F MERCK COM 58933Y105 21,333 -9,436 -30.67 1,659 -30.06 0.0639
2021-05-18 2021-03-31 13F MERCK & CO. COM 58933Y105 30,769 12,844 71.65 2,372 61.80 0.1017
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 17,925 535 3.08 1,466 1.66 0.0650
2020-11-12 2020-09-30 13F Merck COM 58933Y105 17,390 891 5.40 1,442 13.01 0.0669
2020-08-14 2020-06-30 13F Merck COM 58933Y105 16,499 -888 -5.11 1,276 -4.63 0.0658
2020-05-11 2020-03-31 13F Merck COM 58933Y105 17,387 2,111 13.82 1,338 -3.67 0.0820
2020-02-11 2019-12-31 13F Merck COM 58933Y105 15,276 -121 -0.79 1,389 7.18 0.0687
2019-11-12 2019-09-30 13F Merck COM 58933Y105 15,397 -1,075 -6.53 1,296 -6.15 0.0692
2019-08-14 2019-06-30 13F Merck COM 58933Y105 16,472 1,390 9.22 1,381 10.13 0.0773
2019-05-13 2019-03-31 13F Merck COM 58933Y105 15,082 -402 -2.60 1,254 6.00 0.0743
2019-02-14 2018-12-31 13F Merck COM 58933Y105 15,484 -591 -3.68 1,183 3.77 0.0747
2018-11-13 2018-09-30 13F Merck COM 58933Y105 16,075 -533 -3.21 1,140 13.10 0.0631
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 16,608 1,995 13.65 1,008 26.63 0.0592
2018-05-15 2018-03-31 13F Merck COM 58933Y105 14,613 -3,841 -20.81 796 -23.31 0.0444
2018-02-14 2017-12-31 13F Merck COM 58933Y105 18,454 -3,819 -17.15 1,038 -27.21 0.0560
2017-11-14 2017-09-30 13F Merck COM 58933Y105 22,273 -4,795 -17.71 1,426 -17.81 0.0809
2017-08-14 2017-06-30 13F Merck COM 58933Y105 27,068 -448,363 -94.31 1,735 -94.26 0.1020
2017-05-05 2017-03-31 13F Merck COM 58933Y105 475,431 19,577 4.29 30,209 12.57 1.8693
2017-02-14 2016-12-31 13F Merck COM 58933Y105 455,854 32,446 7.66 26,836 1.56 1.7566
2016-11-14 2016-09-30 13F Merck & Co Inc New Com COM 58933Y105 423,408 -8,704 -2.01 26,425 6.15 1.8273
2016-08-16 2016-06-30 13F Merck & Co Inc New Com COM 58933Y105 432,112 739 0.17 24,894 9.07 1.7863
2016-05-13 2016-03-31 13F Merck & Co Inc New Com COM 58933Y105 431,373 -17,497 -3.90 22,824 -3.73 1.6572
2016-02-16 2015-12-31 13F Merck & Co Inc New Com COM 58933Y105 448,870 82,915 22.66 23,709 31.17 1.6214
2015-11-16 2015-09-30 13F Merck & Co Inc New Com COM 58933Y105 365,955 333,136 1,015.07 18,075 867.61 1.4841
2015-08-13 2015-06-30 13F Merck & Co Inc New Com COM 58933Y105 32,819 17,326 111.83 1,868 109.65 0.1484
2015-05-14 2015-03-31 13F Merck & Co Inc New Com COM 58933Y105 15,493 3,003 24.04 891 25.67 0.0745
2015-02-17 2014-12-31 13F Merck & Co Inc New Com COM 58933Y105 12,490 -150 -1.19 709 -5.34 0.0625
2014-11-14 2014-09-30 13F Merck & Co Inc New Com COM 58933Y105 12,640 73 0.58 749 3.03 0.0745
2014-08-15 2014-06-30 13F Merck & Co Inc New Com COM 58933Y105 12,567 -432 -3.32 727 -1.49 0.0792
2014-05-15 2014-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 12,999 6,392 96.75 738 122.96 0.0915
2014-02-14 2013-12-31 13F Merck COM 58933Y105 6,607 354 5.66 331 11.07 0.0445
2013-11-15 2013-09-30 13F Merck COM 58933Y105 6,253 1,305 26.37 298 29.57 0.0464
2013-08-09 2013-06-30 13F Merck COM 58933Y105 4,948 4,948 230 0.0450
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.