Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionBlackhill Capital Inc
Latest Disclosed Ownership168,857 shares
Latest Disclosed Value $ 20,311,809
Blackhill Capital Inc ownership in 6MK / Merck & Co., Inc.

On May 14, 2026 - Blackhill Capital Inc filed a 13F-HR form disclosing ownership of 168,857 shares of Merck & Co., Inc. (DE:6MK) valued at $17,594,899 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 168,857 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $17,355,122 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)
2026-05-14 2026-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 168,857 0 0.00 20,312 14.28 1.0455
2026-02-13 2025-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 168,857 0 0.00 17,774 25.41 0.9145
2025-11-13 2025-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 168,857 -7,850 -4.44 14,172 1.32 0.7016
2025-08-14 2025-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 176,707 -27,900 -13.64 13,988 -23.83 0.8066
2025-05-14 2025-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 204,607 -1,200 -0.58 18,366 -10.30 1.0671
2025-02-13 2024-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 205,807 -2,693 -1.29 20,474 -13.53 1.0609
2024-11-12 2024-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 208,500 0 0.00 23,677 -8.27 1.3629
2024-08-13 2024-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 208,500 0 0.00 25,812 -6.18 1.6007
2024-05-14 2024-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 208,500 0 0.00 27,512 21.03 1.5800
2024-02-12 2023-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 208,500 0 0.00 22,731 5.89 1.8205
2023-11-13 2023-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 208,500 -14,000 -6.29 21,465 -16.39 2.0680
2023-08-11 2023-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 222,500 -2,600 -1.16 25,674 7.21 2.7551
2023-05-12 2023-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 225,100 8,500 3.92 23,948 -0.35 2.6731
2023-02-13 2022-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 216,600 7,350 3.51 24,032 33.35 2.7854
2022-11-14 2022-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 209,250 38,200 22.33 18,021 15.56 2.1400
2022-08-12 2022-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 171,050 -1,400 -0.81 15,595 10.21 1.8070
2022-05-13 2022-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 172,450 3,200 1.89 14,150 9.09 1.3458
2022-02-11 2021-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 169,250 0 0.00 12,971 2.04 1.1088
2021-11-12 2021-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 169,250 -112,000 -39.82 12,712 -41.88 1.1004
2021-08-13 2021-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 281,250 -6,000 -2.09 21,873 -1.22 1.9931
2021-05-13 2021-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 287,250 -3,000 -1.03 22,144 -6.73 1.9307
2021-02-08 2020-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 290,250 44,800 18.25 23,742 16.61 2.8640
2020-11-12 2020-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 245,450 -4,200 -1.68 20,360 5.46 2.7528
2020-08-13 2020-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 249,650 -1,400 -0.56 19,305 -0.06 2.8410
2020-05-12 2020-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 251,050 -4,000 -1.57 19,316 -16.73 4.0211
2020-02-10 2019-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 255,050 11,700 4.81 23,197 13.24 3.3845
2019-11-07 2019-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 243,350 -1,600 -0.65 20,485 -0.26 3.2380
2019-07-29 2019-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 244,950 0 0.00 20,539 0.82 3.3049
2019-05-02 2019-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 244,950 700 0.29 20,372 9.16 3.4934
2019-01-31 2018-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 244,250 200 0.08 18,663 7.80 3.5752
2018-10-24 2018-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 244,050 20,500 9.17 17,313 27.59 2.8002
2018-08-06 2018-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 223,550 -4,200 -1.84 13,569 9.37 2.4149
2018-05-08 2018-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 227,750 29,550 14.91 12,406 11.23 2.3131
2018-02-05 2017-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 198,200 38,800 24.34 11,153 9.28 2.0127
2017-11-02 2017-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 159,400 1,900 1.21 10,206 1.11 1.9152
2017-07-20 2017-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 157,500 152,500 3,050.00 10,094 3,074.21 1.9328
2017-05-08 2017-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 5,000 -1,288 -20.48 318 -14.05 0.0587
2017-01-27 2016-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 370 -5.61 0.0701
2016-11-14 2016-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 392 8.29 0.0654
2016-08-04 2016-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 362 8.71 0.0587
2016-04-22 2016-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 333 0.30 0.0546
2016-02-02 2015-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 332 6.75 0.0517
2015-11-04 2015-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 311 -13.13 0.0419
2015-08-06 2015-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 0 0.00 358 -0.83 0.0432
2015-05-07 2015-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 6,288 6,288 0.00 361 0.0440
2015-02-05 2014-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 0 -5,000 -100.00 0 -100.00
2014-11-06 2014-09-30 13F MERCK & CO INC NEW COM COM 58933Y105 5,000 0 0.00 296 2.42 0.0403
2014-08-05 2014-06-30 13F MERCK & CO INC NEW COM COM 58933Y105 5,000 0 0.00 289 1.76 0.0393
2014-04-28 2014-03-31 13F MERCK & CO INC NEW COM COM 58933Y105 5,000 0 0.00 284 13.60 0.0410
2014-02-04 2013-12-31 13F MERCK & CO INC NEW COM COM 58933Y105 5,000 0 0.00 250 5.04 0.0381
2013-10-30 2013-09-30 13F MERCK & CO INC NEW COM COMMON 58933Y105 5,000 0 0.00 238 2.59 0.0383
2013-08-06 2013-06-30 13F MERCK & CO INC NEW COM COMMON 58933Y105 5,000 5,000 232 0.0376
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.