Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionAspiriant, Llc
Latest Disclosed Ownership15,434 shares
Latest Disclosed Value $ 1,856,633
Aspiriant, Llc reports 1.65% increase in ownership of 6MK / Merck & Co., Inc.

On May 12, 2026 - Aspiriant, Llc filed a 13F-HR form disclosing ownership of 15,434 shares of Merck & Co., Inc. (DE:6MK) valued at $1,608,223 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 15,183 shares of Merck & Co., Inc.. This represents a change in shares of 1.65% during the quarter. The current value of the position is $1,586,307 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)
2026-05-12 2026-03-31 13F MERCK COM 58933Y105 15,434 251 1.65 1,857 16.15 0.0529
2026-01-20 2025-12-31 13F MERCK COM 58933Y105 15,183 1,373 9.94 1,598 37.88 0.0459
2025-10-24 2025-09-30 13F MERCK COM 58933Y105 13,810 -2,980 -17.75 1,159 -12.79 0.0354
2025-07-29 2025-06-30 13F MERCK COM 58933Y105 16,790 1,696 11.24 1,329 -1.85 0.0422
2025-04-21 2025-03-31 13F MERCK COM 58933Y105 15,094 -178 -1.17 1,355 -10.86 0.0470
2025-01-16 2024-12-31 13F MERCK COM 58933Y105 15,272 -105 -0.68 1,519 -13.00 0.0549
2024-10-17 2024-09-30 13F MERCK COM 58933Y105 15,377 -535 -3.36 1,746 -11.37 0.0663
2024-07-15 2024-06-30 13F MERCK COM 58933Y105 15,912 -3,269 -17.04 1,970 -22.17 0.0803
2024-04-15 2024-03-31 13F MERCK COM 58933Y105 19,181 755 4.10 2,531 26.05 0.1048
2024-01-26 2023-12-31 13F MERCK COM 58933Y105 18,426 161 0.88 2,009 6.81 0.0905
2023-10-18 2023-09-30 13F MERCK COM 58933Y105 18,265 1,380 8.17 1,881 -3.49 0.0962
2023-07-19 2023-06-30 13F MERCK COM 58933Y105 16,885 -95 -0.56 1,948 7.86 0.0985
2023-04-27 2023-03-31 13F MERCK COM 58933Y105 16,980 180 1.07 1,807 -3.11 0.0946
2023-01-23 2022-12-31 13F MERCK COM 58933Y105 16,800 -194 -1.14 1,864 27.32 0.0950
2022-10-28 2022-09-30 13F MERCK COM 58933Y105 16,994 701 4.30 1,464 -1.28 0.0716
2022-07-25 2022-06-30 13F MERCK COM 58933Y105 16,293 -456 -2.72 1,483 8.01 0.0716
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 16,749 -325 -1.90 1,373 4.81 0.0755
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 17,074 2,446 16.72 1,310 19.31 0.0700
2021-10-27 2021-09-30 13F MERCK COM 58933Y105 14,628 -181 -1.22 1,098 -4.60 0.0645
2021-08-13 2021-06-30 13F MERCK COM 58933Y105 14,809 268 1.84 1,151 2.86 0.0651
2021-05-11 2021-03-31 13F MERCK & CO. COM 58933Y105 14,541 1,890 14.94 1,119 8.43 0.0715
2021-02-01 2020-12-31 13F MERCK & CO. COM 58933Y105 12,651 -29,662 -70.10 1,032 -70.59 0.0704
2020-10-29 2020-09-30 13F MERCK & CO. COM 58933Y105 42,313 29,571 232.08 3,509 256.97 0.2744
2020-08-06 2020-06-30 13F MERCK & CO. COM 58933Y105 12,742 -1,377 -9.75 983 -9.32 0.0913
2020-05-05 2020-03-31 13F MERCK & CO. COM 58933Y105 14,119 939 7.12 1,084 -9.74 0.1068
2020-01-27 2019-12-31 13F MERCK COM 58933Y105 13,180 -456 -3.34 1,201 4.43 0.1112
2019-11-04 2019-09-30 13F MERCK COM 58933Y105 13,636 -151 -1.10 1,150 -0.69 0.1030
2019-08-06 2019-06-30 13F MERCK COM 58933Y105 13,787 -887 -6.04 1,158 -4.93 0.0966
2019-08-06 2019-03-31 13F/A-1 MERCK COM 58933Y105 14,674 -4,876 -24.94 1,218 -18.42 0.0995
2019-05-03 2019-03-31 13F MERCK COM 58933Y105 14,674 -4,876 1,218
2019-02-04 2018-12-31 13F MERCK COM 58933Y105 19,550 -1,067 -5.18 1,493 2.12 0.1132
2018-10-26 2018-09-30 13F MERCK COM 58933Y105 20,617 -1,681 -7.54 1,462 8.06 0.1250
2018-08-07 2018-06-30 13F MERCK COM 58933Y105 22,298 1,102 5.20 1,353 17.14 0.1159
2018-05-04 2018-03-31 13F MERCK COM 58933Y105 21,196 21,196 1,155 0.1008
2018-01-31 2017-12-31 13F MERCK COM 58933Y105 0 -20,341 -100.00 0 -100.00
2017-11-13 2017-09-30 13F MERCK COM 58933Y105 20,341 -1,295 -5.99 1,302 -6.13 0.1091
2017-08-03 2017-06-30 13F MERCK COM 58933Y105 21,636 -1,690 -7.25 1,387 -6.41 0.1206
2017-05-12 2017-03-31 13F MERCK COM 58933Y105 23,326 146 0.63 1,482 8.57 0.1262
2017-02-10 2016-12-31 13F MERCK COM 58933Y105 23,180 549 2.43 1,365 -3.33 0.1236
2016-11-10 2016-09-30 13F MERCK COM 58933Y105 22,631 616 2.80 1,412 12.69 0.1405
2016-08-09 2016-06-30 13F MERCK COM 58933Y105 22,015 -1,255 -5.39 1,253 1.79 0.1184
2016-05-12 2016-03-31 13F MERCK & CO INC COM 58933Y105 23,270 23,270 1,231 0.1175
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.