Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionPacitti Group Inc.
Latest Disclosed Ownership2,404 shares
Latest Disclosed Value $ 290,434
Pacitti Group Inc. reports 0.04% decrease in ownership of 6MK / Merck & Co., Inc.

On May 6, 2026 - Pacitti Group Inc. filed a 13F-HR form disclosing ownership of 2,404 shares of Merck & Co., Inc. (DE:6MK) valued at $250,497 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,405 shares of Merck & Co., Inc.. This represents a change in shares of -0.04% during the quarter. The current value of the position is $247,083 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)
2026-05-06 2026-03-31 13F MERCK COM 58933Y105 2,404 -1 -0.04 290 14.17 0.1050
2026-02-05 2025-12-31 13F MERCK COM 58933Y105 2,405 2,405 254 0.0936
2025-02-07 2024-12-31 13F MERCK COM 58933Y105 0 -17,578 -100.00 0 -100.00
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 17,578 471 2.75 2,006 -5.69 0.9458
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 17,107 341 2.03 2,127 -4.23 1.1124
2024-05-13 2024-03-31 13F MERCK COM 58933Y105 16,766 294 1.78 2,221 23.06 1.2001
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 16,472 510 3.20 1,804 9.27 1.1248
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 15,962 474 3.06 1,651 -8.02 1.1556
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 15,488 -295 -1.87 1,795 6.91 1.2643
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 15,783 472 3.08 1,679 -1.12 1.2295
2023-02-10 2022-12-31 13F MERCK COM 58933Y105 15,311 99 0.65 1,699 29.62 1.3295
2022-11-10 2022-09-30 13F MERCK COM 58933Y105 15,212 61 0.40 1,310 -5.14 1.0722
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 15,151 1,342 9.72 1,381 21.89 1.0596
2022-05-12 2022-03-31 13F MERCK COM 58933Y105 13,809 13,809 1,133 0.7485
2022-02-08 2021-12-31 13F MERCK COM 58933Y105 0 -1,279 -100.00 0 -100.00
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 1,279 0 0.00 96 -3.03 0.0600
2021-08-16 2021-06-30 13F MERCK & CO INC COM COM 58933Y105 1,279 800 167.01 99 175.00 0.0595
2021-05-17 2021-03-31 13F MERCK & CO INC COM COM 58933Y105 479 -192 -28.61 36 -33.33 0.0238
2021-02-16 2020-12-31 13F MERCK & CO INC COM COM 58933Y105 671 0 0.00 54 -1.82 0.0389
2020-11-16 2020-09-30 13F MERCK & CO INC COM COM 58933Y105 671 34 5.34 55 7.84 0.0442
2020-08-12 2020-06-30 13F MERCK & CO INC COM COM 58933Y105 637 0 0.00 51 4.08 0.0400
2020-05-12 2020-03-31 13F MERCK & CO INC COM COM 58933Y105 637 -195 -23.44 49 -35.53 0.0485
2020-02-13 2019-12-31 13F MERCK & CO INC COM COM 58933Y105 832 832 76 0.0616
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.