Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionTownsquare Capital Llc
Latest Disclosed Ownership18,539 shares
Latest Disclosed Value $ 2,230,001
Townsquare Capital Llc reports 10.63% increase in ownership of 6MK / Merck & Co., Inc.

On May 13, 2026 - Townsquare Capital Llc filed a 13F-HR form disclosing ownership of 18,539 shares of Merck & Co., Inc. (BG:6MK) valued at $2,230,001 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 16,758 shares of Merck & Co., Inc.. This represents a change in shares of 10.63% during the quarter.

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)
2026-05-13 2026-03-31 13F MERCK COM 58933Y105 18,539 1,781 10.63 2,230 26.49 0.2121
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 -10,306 -38.08 1,764 -22.37 0.3954
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 1,764
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 1,764
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 1,764
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 1,764
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 16,758 1,764
2025-11-03 2025-09-30 13F MERCK COM 58933Y105 27,064 -124,069 -82.09 2,271 -81.02 0.3436
2025-08-13 2025-06-30 13F MERCK COM 58933Y105 151,133 -272,471 -64.32 11,964 -68.54 1.1654
2025-05-12 2025-03-31 13F MERCK COM 58933Y105 423,604 16,816 4.13 38,023 -6.04 0.4050
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 406,788 21,071 5.46 40,467 -7.61 0.4568
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 385,717 9,305 2.47 43,802 -6.00 0.5246
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 376,412 10,118 2.76 46,600 -3.59 0.6355
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 366,294 3,490 0.96 48,333 22.20 0.7079
2024-02-15 2023-12-31 13F MERCK COM 58933Y105 362,804 -23,992 -6.20 39,553 -0.67 0.6778
2023-11-15 2023-09-30 13F MERCK COM 58933Y105 386,796 2,394 0.62 39,821 -10.23 0.7267
2023-11-13 2023-06-30 13F MERCK COM 58933Y105 384,402 116,170 43.31 44,356 55.43 0.8076
2023-05-11 2023-03-31 13F MERCK COM 58933Y105 268,232 3,448 1.30 28,537 -2.86 0.6285
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 264,784 -100,190 -27.45 29,378 -6.53 0.7271
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 364,974 4,021 1.11 31,431 -4.49 0.8998
2022-08-08 2022-06-30 13F MERCK COM 58933Y105 360,953 192,381 114.12 32,907 137.92 0.9342
2022-04-28 2022-03-31 13F MERCK COM 58933Y105 168,572 -136,800 -44.80 13,831 -40.90 0.2558
2022-04-28 2022-03-31 13F MERCK COM 58933Y105 352,443 28,919
2022-02-11 2021-12-31 13F MERCK COM 58933Y105 305,372 1,319 0.43 23,404 2.48 0.5870
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 304,053 57,710 23.43 22,838 18.69 0.6580
2021-08-16 2021-06-30 13F MERCK & CO. COM 58933Y105 246,343 574 0.23 19,242 1.56 0.6221
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 245,769 907 0.37 18,946 -5.41 0.7367
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 244,862 -46 -0.02 20,030 2.71 0.8910
2020-12-01 2020-09-30 13F/A-2 MERCK & CO. COM 58933Y105 244,908 4,098 1.70 19,502 4.70 1.1367
2020-11-16 2020-09-30 13F MERCK & CO. COM 58933Y105 240,810 0 18,627 473,740.7923
2020-08-17 2020-06-30 13F MERCK & CO. COM 58933Y105 240,810 107 0.04 18,627 -0.36 1.2654
2020-05-18 2020-03-31 13F MERCK & CO. COM 58933Y105 240,703 -188 -0.08 18,695 -14.67 1.5107
2020-05-18 2019-12-31 13F MERCK COM 58933Y105 240,891 -2,509 -1.03 21,910 8.61 1.7781
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 243,400 1,157 0.48 20,173 -1.41 1.6682
2019-08-15 2019-06-30 13F MERCK COM 58933Y105 242,243 -810,589 -76.99 20,462 -76.63 1.9475
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 1,052,832 816,017 344.58 87,564 379.28 6.7549
2019-02-12 2018-12-31 13F MERCK COM 58933Y105 236,815 236,815 18,270 2.3778
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.