Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
AKTIENPREIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionFirst Affirmative Financial Network
Latest Disclosed Ownership10,609 shares
Latest Disclosed Value $ 1,276,182
First Affirmative Financial Network reports 30.19% increase in ownership of 6MK / Merck & Co., Inc.

On May 11, 2026 - First Affirmative Financial Network filed a 13F-HR/A form disclosing ownership of 10,609 shares of Merck & Co., Inc. (DE:6MK) valued at $1,105,458 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 20, 2025 disclosing 8,149 shares of Merck & Co., Inc.. This represents a change in shares of 30.19% during the quarter. The current value of the position is $1,090,393 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)
2026-05-11 2026-03-31 13F/A-1 MERCK COM 58933Y105 10,609 2,460 30.19 1,276 86.82 0.4951
2026-05-08 2026-03-31 13F MERCK COM 58933Y105 8,149 0 684 0.3218
2025-11-20 2025-09-30 13F MERCK COM 58933Y105 8,149 153 1.91 684 8.07 0.3218
2025-11-20 2025-06-30 13F MERCK COM 58933Y105 7,996 687 9.40 633 -3.66 0.3254
2025-04-11 2025-03-31 13F MERCK COM 58933Y105 7,309 0 0.00 656 -9.77 0.4019
2025-01-23 2024-12-31 13F MERCK COM 58933Y105 7,309 628 9.40 727 -4.09 0.4197
2024-10-10 2024-09-30 13F MERCK COM 58933Y105 6,681 1,045 18.54 759 8.75 0.4153
2024-07-10 2024-06-30 13F MERCK COM 58933Y105 5,636 138 2.51 698 -3.86 0.4842
2024-04-11 2024-03-31 13F MERCK COM 58933Y105 5,498 -149 -2.64 725 17.89 0.5347
2024-01-08 2023-12-31 13F MERCK COM 58933Y105 5,647 105 1.89 616 7.89 0.4916
2023-10-16 2023-09-30 13F MERCK COM 58933Y105 5,542 342 6.58 571 -5.00 0.5583
2023-07-10 2023-06-30 13F MERCK COM 58933Y105 5,200 1,000 23.81 600 34.53 0.5993
2023-04-11 2023-03-31 13F MERCK COM 58933Y105 4,200 345 8.95 447 4.45 0.5170
2023-01-23 2022-12-31 13F MERCK COM 58933Y105 3,855 192 5.24 428 35.56 0.5180
2022-10-20 2022-09-30 13F MERCK COM 58933Y105 3,663 664 22.14 315 15.38 0.4008
2022-07-13 2022-06-30 13F MERCK COM 58933Y105 2,999 -1,464 -32.80 273 -25.41 0.3103
2022-04-12 2022-03-31 13F MERCK & CO. COM 58933Y105 4,463 -3 -0.07 366 7.02 0.3509
2022-02-15 2021-12-31 13F MERCK COM 58933Y105 4,466 -246 -5.22 342 -3.39 0.3124
2021-10-26 2021-09-30 13F MERCK COM 58933Y105 4,712 4,712 354 0.3645
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.