Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionBallast Advisors Llc
Latest Disclosed Ownership1,630 shares
Latest Disclosed Value $ 196
Ballast Advisors Llc ownership in 6MK / Merck & Co., Inc.

On May 12, 2026 - Ballast Advisors Llc filed a 13F-HR form disclosing ownership of 1,630 shares of Merck & Co., Inc. (BG:6MK) valued at $196 USD as of March 31, 2026. The entity filed a previous 13F-HR on July 31, 2025 disclosing 0 shares of Merck & Co., Inc..

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 & CO INC COM COM 58933Y105 1,630 1,630 0 0.0570
2025-07-31 2025-06-30 13F MERCK COM 58933Y105 0 -2,351 -100.00 0 -100.00
2025-05-07 2025-03-31 13F MERCK COM 58933Y105 2,351 -51 -2.12 211 -11.34 0.0673
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 2,402 51 2.17 239 -10.53 0.0736
2024-10-30 2024-09-30 13F MERCK COM 58933Y105 2,351 -386 -14.10 267 -21.30 0.0825
2024-07-26 2024-06-30 13F MERCK COM 58933Y105 2,737 400 17.12 339 9.74 0.1075
2024-05-01 2024-03-31 13F MERCK COM 58933Y105 2,337 -618 -20.91 308 -4.35 0.1039
2024-01-30 2023-12-31 13F MERCK COM 58933Y105 2,955 -154 -4.95 322 0.63 0.1203
2023-10-19 2023-09-30 13F MERCK COM 58933Y105 3,109 -9 -0.29 320 -10.86 0.1277
2023-08-04 2023-06-30 13F MERCK COM 58933Y105 3,118 -351 -10.12 360 -2.71 0.1355
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 3,469 206 6.31 369 1.93 0.1472
2023-01-26 2022-12-31 13F MERCK COM 58933Y105 3,263 -964 -22.81 362 -0.55 0.1585
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 4,227 -29 -0.68 364 -6.19 0.1702
2022-07-20 2022-06-30 13F MERCK COM 58933Y105 4,256 -521 -10.91 388 -1.02 0.1745
2022-04-21 2022-03-31 13F MERCK COM 58933Y105 4,777 0 0.00 392 7.10 0.1530
2022-02-04 2021-12-31 13F MERCK COM 58933Y105 4,777 775 19.37 366 21.59 0.1400
2021-11-01 2021-09-30 13F MERCK COM 58933Y105 4,002 0 0.00 301 -3.22 0.1251
2021-07-20 2021-06-30 13F MERCK COM 58933Y105 4,002 0 0.00 311 0.65 0.1315
2021-04-26 2021-03-31 13F MERCK & CO. COM 58933Y105 4,002 0 0.00 309 -5.50 0.1425
2021-02-05 2020-12-31 13F MERCK & CO. COM 58933Y105 4,002 0 0.00 327 -1.51 0.1684
2020-10-22 2020-09-30 13F MERCK & CO. COM 58933Y105 4,002 -24 -0.60 332 6.75 0.2069
2020-07-29 2020-06-30 13F MERCK & CO. COM 58933Y105 4,026 830 25.97 311 26.42 0.2213
2020-07-29 2020-03-31 13F/A-1 MERCK & CO. COM 58933Y105 3,196 -157 -4.68 246 -19.34 0.2314
2020-04-16 2020-03-31 13F MERCK & CO. COM 58933Y105 3,196 -157 246 210,030.2239
2020-02-14 2019-12-31 13F MERCK COM 58933Y105 3,353 3,353 305 0.2243
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.