Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
AKTIENPREIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionX-Square Capital, LLC
Latest Disclosed Ownership4,149 shares
Latest Disclosed Value $ 499
X-Square Capital, LLC reports 0.75% increase in ownership of 6MK / Merck & Co., Inc.

On May 15, 2026 - X-Square Capital, LLC filed a 13F-HR form disclosing ownership of 4,149 shares of Merck & Co., Inc. (DE:6MK) valued at $432,326 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 4,118 shares of Merck & Co., Inc.. The current value of the position is $426,434 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)
2026-05-15 2026-03-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,149 31 0.75 0 0.1682
2026-02-11 2025-12-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,118 -89 -2.12 0 0.1422
2025-11-10 2025-09-30 13F MERCK 1 3 YR TREAS BD 58933Y105 4,207 -297 -6.59 0 0.1103
2025-08-05 2025-06-30 13F MERCK 1 3 YR TREAS BD 58933Y105 4,504 2 0.04 0 0.1284
2025-05-09 2025-03-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,502 2 0.04 0 0.1737
2025-02-12 2024-12-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,500 1 0.02 0 0.1842
2024-10-22 2024-09-30 13F MERCK 1 3 YR TREAS BD 58933Y105 4,499 11 0.25 1 0.2245
2024-08-06 2024-06-30 13F MERCK 1 3 YR TREAS BD 58933Y105 4,488 0 0.00 1 0.2578
2024-05-14 2024-03-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,488 3 0.07 1 0.2748
2024-02-09 2023-12-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,485 416 10.22 0 0.2698
2023-11-13 2023-09-30 13F Merck 1 3 YR TREAS BD 58933Y105 4,069 0 0.00 0 0.3152
2023-08-14 2023-06-30 13F Merck 1 3 YR TREAS BD 58933Y105 4,069 -499 -10.92 0 0.3152
2023-05-11 2023-03-31 13F MERCK 1 3 YR TREAS BD 58933Y105 4,568 1 0.02 0 0.2866
2023-02-02 2022-12-31 13F MERCK COM 58933Y105 4,567 300 7.03 1 -100.00 0.2887
2022-11-04 2022-09-30 13F MERCK COM 58933Y105 4,267 1 0.02 367 -5.66 0.2331
2022-08-05 2022-06-30 13F MERCK COM 58933Y105 4,266 1 0.02 389 11.14 0.2341
2022-05-12 2022-03-31 13F MERCK COM 58933Y105 4,265 -25 -0.58 350 6.38 0.1819
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 4,290 211 5.17 329 7.52 0.1653
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 4,079 420 11.48 306 7.37 0.1582
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 3,659 25 0.69 285 1.79 0.1353
2021-05-13 2021-03-31 13F MERCK COM 58933Y105 3,634 158 4.55 280 -1.41 0.1294
2021-02-12 2020-12-31 13F MERCK COM 58933Y105 3,476 0 0.00 284 -1.39 0.1532
2020-11-02 2020-09-30 13F MERCK COM 58933Y105 3,476 0 0.00 288 7.06 0.2075
2020-08-13 2020-06-30 13F MERCK COM 58933Y105 3,476 603 20.99 269 21.72 0.1910
2020-05-19 2020-03-31 13F MERCK COM 58933Y105 2,873 0 0.00 221 -15.33 0.2203
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 2,873 175 6.49 261 14.98 0.1536
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 2,698 2,698 227 0.1430
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.