Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionBroderick Brian C
Latest Disclosed Ownership22,250 shares
Latest Disclosed Value $ 2,676,453
Broderick Brian C reports 1.15% increase in ownership of 6MK / Merck & Co., Inc.

On May 7, 2026 - Broderick Brian C filed a 13F-HR form disclosing ownership of 22,250 shares of Merck & Co., Inc. (DE:6MK) valued at $2,318,450 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 21,997 shares of Merck & Co., Inc.. This represents a change in shares of 1.15% during the quarter. The current value of the position is $2,286,855 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)
2026-05-07 2026-03-31 13F MERCK COM 58933Y105 22,250 253 1.15 2,676 15.59 0.0991
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 21,997 0 0.00 2,315 25.41 0.4377
2025-11-10 2025-09-30 13F MERCK COM 58933Y105 21,997 0 0.00 1,846 6.03 0.3507
2025-07-23 2025-06-30 13F MERCK COM 58933Y105 21,997 -150 -0.68 1,741 -12.38 0.3443
2025-04-18 2025-03-31 13F MERCK COM 58933Y105 22,147 0 0.00 1,988 -9.80 0.4049
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 22,147 0 0.00 2,203 -12.41 0.4321
2024-11-06 2024-09-30 13F MERCK COM 58933Y105 22,147 -55 -0.25 2,515 -8.48 0.4923
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 22,202 633 2.93 2,749 -3.44 0.5611
2024-05-06 2024-03-31 13F MERCK COM 58933Y105 21,569 13,944 182.87 2,846 242.48 0.6079
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 7,625 1,500 24.49 831 31.90 0.2075
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 6,125 0 0.00 631 -10.76 0.1737
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 6,125 -25 -0.41 707 7.95 0.1865
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 6,150 0 0.00 654 -4.11 0.1837
2023-02-09 2022-12-31 13F MERCK COM 58933Y105 6,150 500 8.85 682 40.04 0.2024
2022-11-08 2022-09-30 13F MERCK COM 58933Y105 5,650 0 0.00 487 -5.62 0.1522
2022-07-19 2022-06-30 13F MERCK COM 58933Y105 5,650 0 0.00 516 11.45 0.1565
2022-05-17 2022-03-31 13F MERCK COM 58933Y105 5,650 35 0.62 463 7.42 0.1183
2022-02-08 2021-12-31 13F MERCK COM 58933Y105 5,615 -3,468 -38.18 431 -36.90 0.1036
2021-11-10 2021-09-30 13F MERCK COM 58933Y105 9,083 -267 -2.86 683 -6.05 0.1823
2021-08-09 2021-06-30 13F MERCK COM 58933Y105 9,350 -100 -1.06 727 -0.27 0.1931
2021-05-17 2021-03-31 13F MERCK COM 58933Y105 9,450 -1,100 -10.43 729 -15.43 0.2098
2021-02-16 2020-12-31 13F MERCK COM 58933Y105 10,550 -70 -0.66 862 -2.05 0.2559
2020-10-28 2020-09-30 13F MERCK COM 58933Y105 10,620 -2,255 -17.51 880 -11.65 0.2801
2020-07-28 2020-06-30 13F MERCK COM 58933Y105 12,875 -450 -3.38 996 -2.92 0.3316
2020-05-07 2020-03-31 13F MERCK COM 58933Y105 13,325 -175 -1.30 1,026 -16.38 0.4059
2020-01-15 2019-12-31 13F MERCK COM 58933Y105 13,500 1,021 8.18 1,227 16.75 0.3975
2019-11-04 2019-09-30 13F MERCK COM 58933Y105 12,479 -1,202 -8.79 1,051 -8.37 0.3615
2019-07-24 2019-06-30 13F MERCK COM 58933Y105 13,681 -2,530 -15.61 1,147 -14.97 0.4013
2019-04-29 2019-03-31 13F MERCK COM 58933Y105 16,211 -2,285 -12.35 1,349 -4.53 0.4819
2019-01-24 2018-12-31 13F MERCK COM 58933Y105 18,496 -1,000 -5.13 1,413 2.10 0.5946
2018-10-15 2018-09-30 13F MERCK COM 58933Y105 19,496 -1,100 -5.34 1,384 10.72 0.4694
2018-07-30 2018-06-30 13F MERCK COM 58933Y105 20,596 -100 -0.48 1,250 11.01 0.4569
2018-04-24 2018-03-31 13F MERCK COM 58933Y105 20,696 -408 -1.93 1,126 -5.14 0.4222
2018-02-02 2017-12-31 13F MERCK COM 58933Y105 21,104 -14,840 -41.29 1,187 -48.44 0.4333
2017-10-26 2017-09-30 13F MERCK COM 58933Y105 35,944 -5,546 -13.37 2,302 -13.39 0.8306
2017-07-21 2017-06-30 13F MERCK COM 58933Y105 41,490 -2,179 -4.99 2,658 -4.18 0.9834
2017-05-16 2017-03-31 13F MERCK COM 58933Y105 43,669 -1,179 -2.63 2,774 5.08 1.1315
2017-02-14 2016-12-31 13F MERCK Common Stock 58933Y105 44,848 -640 -1.41 2,640 -6.94 1.1439
2016-11-16 2016-09-30 13F MERCK Common Stock 58933Y105 45,488 -2,700 -5.60 2,837 2.12 1.2091
2016-08-08 2016-06-30 13F MERCK Common Stock 58933Y105 48,188 -1,130 -2.29 2,778 6.48 1.1687
2016-05-27 2016-03-31 13F MERCK Common Stock 58933Y105 49,318 4,600 10.29 2,609 10.46 1.1297
2016-02-12 2015-12-31 13F MERCK Common Stock 58933Y105 44,718 12,900 40.54 2,362 50.25 1.0570
2015-11-13 2015-09-30 13F MERCK Common Stock 58933Y105 31,818 -245 -0.76 1,572 -13.91 0.7281
2015-08-10 2015-06-30 13F MERCK Common Stock 58933Y105 32,063 -370 -1.14 1,826 -1.99 0.7778
2015-05-22 2015-03-31 13F MERCK Common Stock 58933Y105 32,433 285 0.89 1,863 2.08 0.7730
2015-02-13 2014-12-31 13F MERCK Common Stock 58933Y105 32,148 756 2.41 1,825 -1.99 0.7732
2014-11-24 2014-09-30 13F MERCK Common Stock 58933Y105 31,392 -626 -1.96 1,862 0.49 0.8284
2014-07-23 2014-06-30 13F MERCK Common Stock 58933Y105 32,018 -338 -1.04 1,853 0.93 0.8484
2014-05-29 2014-03-31 13F MERCK Common Stock 58933Y105 32,356 -400 -1.22 1,836 12.02 0.9026
2014-02-27 2013-12-31 13F MERCK Common Stock 58933Y105 32,756 -1,000 -2.96 1,639 1.99 0.8160
2013-11-18 2013-09-30 13F MERCK Common Stock 58933Y105 33,756 -500 -1.46 1,607 0.94 0.8962
2013-08-16 2013-06-30 13F MERCK Common Stock 58933Y105 34,256 -150 -0.44 1,592 4.74 0.9522
2013-08-16 2013-03-31 13F MERCK Common Stock 58933Y105 34,406 -568 -1.62 1,520 6.15 0.9019
2013-08-16 2012-12-31 13F MERCK Common Stock 58933Y105 34,974 34,974 1,432 1.0148
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.