Merck & Co., Inc.
US ˙ NYSE ˙ US58933Y1055

SecurityMRK / Merck & Co., Inc.
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership133,666 shares
Latest Disclosed Value $ 16,087,099
Coldstream Capital Management Inc reports 9.70% increase in ownership of MRK / Merck & Co., Inc.

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 133,666 shares of Merck & Co., Inc. (US:MRK) valued at $16,078,683 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 121,842 shares of Merck & Co., Inc.. This represents a change in shares of 9.70% during the quarter. The current value of the position is $15,331,490 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)
2026-05-08 2026-03-31 13F MERCK COM 58933Y105 133,666 11,824 9.70 16,087 25.36 0.1727
2026-02-09 2025-12-31 13F MERCK COM 58933Y105 121,842 -1,524 -1.24 12,834 23.82 0.1654
2025-11-19 2025-09-30 13F MERCK COM 58933Y105 123,366 13,940 12.74 10,364 19.55 0.1396
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 109,426 6,076 5.88 8,670 -6.54 0.1418
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 103,350 -7,655 -6.90 9,277 -15.99 0.1975
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 111,005 8,606 8.40 11,043 -4.75 0.2354
2024-11-18 2024-09-30 13F/A-1 MERCK COM 58933Y105 102,399 7,544 7.95 11,593 -1.28 0.2505
2024-11-18 2024-09-30 13F MERCK COM 58933Y105 102,399 11,593
2024-08-07 2024-06-30 13F MERCK COM 58933Y105 94,855 457 0.48 11,743 -5.72 0.2861
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 94,398 3,197 3.51 12,456 25.28 0.3163
2024-02-09 2023-12-31 13F MERCK COM 58933Y105 91,201 3,813 4.36 9,943 10.52 0.2782
2023-11-02 2023-09-30 13F MERCK COM 58933Y105 87,388 8,089 10.20 8,997 -1.68 0.2939
2023-08-03 2023-06-30 13F MERCK COM 58933Y105 79,299 -2,368 -2.90 9,150 5.32 0.2899
2023-05-15 2023-03-31 13F MERCK COM 58933Y105 81,667 115 0.14 8,689 -3.98 0.2917
2023-01-10 2022-12-31 13F MERCK COM 58933Y105 81,552 -5,999 -6.85 9,048 13.36 0.3312
2022-08-08 2022-06-30 13F/A-1 MERCK COM 58933Y105 87,551 5,954 7.30 7,982 19.22 0.3109
2022-08-08 2022-06-30 13F MERCK COM 58933Y105 72,671 -8,926 6,625 0.2817
2022-05-11 2022-03-31 13F MERCK COM 58933Y105 81,597 1,938 2.43 6,695 9.66 0.2307
2022-02-11 2021-12-31 13F MERCK COM 58933Y105 79,659 27,358 52.31 6,105 40.73 0.1917
2021-11-12 2021-09-30 13F MERCK & CO. COM 58933Y105 52,301 -8,257 -13.63 4,338 -7.90 0.2102
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 60,558 -667 -1.09 4,710 -0.21 0.1896
2021-06-16 2021-03-31 13F MERCK & CO. COM 58933Y105 61,225 2,299 3.90 4,720 -2.07 0.2764
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 58,926 11,452 24.12 4,820 22.40 0.2908
2020-11-16 2020-09-30 13F MERCK & CO. COM 58933Y105 47,474 345 0.73 3,938 8.04 0.3278
2020-08-12 2020-06-30 13F MERCK & CO. COM 58933Y105 47,129 -1,098 -2.28 3,645 -1.75 0.3273
2020-05-27 2020-03-31 13F MERCK & CO. COM 58933Y105 48,227 721 1.52 3,710 -14.14 0.4055
2020-02-13 2019-12-31 13F MERCK COM 58933Y105 47,506 -201 -0.42 4,321 7.59 0.3543
2019-11-15 2019-09-30 13F MERCK COM 58933Y105 47,707 -1,133 -2.32 4,016 -1.93 0.3382
2019-08-15 2019-06-30 13F MERCK COM 58933Y105 48,840 559 1.16 4,095 1.99 0.3408
2019-05-10 2019-03-31 13F MERCK COM 58933Y105 48,281 32,965 215.23 4,015 243.16 0.3511
2019-02-26 2018-12-31 13F MERCK COM 58933Y105 15,316 2,482 19.34 1,170 28.43 0.1136
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 12,834 1,408 12.32 911 31.46 0.0825
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 11,426 300 2.70 693 14.36 0.0700
2018-05-15 2018-03-31 13F MERCK COM 58933Y105 11,126 1,520 15.82 606 12.22 0.0654
2018-02-14 2017-12-31 13F MERCK COM 58933Y105 9,606 -34,306 -78.12 540 -80.80 0.0586
2017-11-15 2017-09-30 13F MERCK COM 58933Y105 43,912 33 0.08 2,812 0.00 0.3271
2017-08-14 2017-06-30 13F MERCK COM 58933Y105 43,879 2,950 7.21 2,812 8.11 0.3627
2017-05-09 2017-03-31 13F MERCK COM 58933Y105 40,929 2,886 7.59 2,601 16.12 0.3593
2017-02-09 2016-12-31 13F MERCK COM 58933Y105 38,043 30,855 429.26 2,240 398.89 0.3645
2016-11-14 2016-09-30 13F/A-2 MERCK COM 58933Y105 7,188 -493 -6.42 449 1.35 0.0796
2016-11-14 2016-09-30 13F/A-1 MERCK COM 58933Y105 7,188 -493 449 0.0796
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 7,188 -493 449 0.0796
2016-08-09 2016-06-30 13F MERCK COM 58933Y105 7,681 -238 -3.01 443 5.73 0.0785
2016-05-16 2016-03-31 13F MERCK & CO INC COM 58933Y105 7,919 1,885 31.24 419 31.35 0.0763
2016-02-04 2015-12-31 13F MERCK & CO INC COM 58933Y105 6,034 634 11.74 319 19.48 0.0693
2015-11-09 2015-09-30 13F MERCK & CO INC COM 58933Y105 5,400 -150 -2.70 267 -15.51 0.0714
2015-07-31 2015-06-30 13F MERCK & CO INC COM 58933Y105 5,550 5,550 0.00 316 0.0826
2015-02-11 2014-12-31 13F Merck COM 58933Y105 0 -3,871 -100.00 0 -100.00
2014-11-13 2014-09-30 13F Merck COM 58933Y105 3,871 78 2.06 229 4.57 0.0650
2014-08-14 2014-06-30 13F Merck COM 58933Y105 3,793 -409 -9.73 219 -8.37 0.0643
2014-05-07 2014-03-31 13F Merck COM 58933Y105 4,202 -1,224 -22.56 239 -12.13 0.0774
2014-02-14 2013-12-31 13F Merck COM 58933Y105 5,426 -27,247 -83.39 272 -82.52 0.0876
2013-11-07 2013-09-30 13F Merck COM 58933Y105 32,673 395 1.22 1,556 3.80 0.5124
2013-08-14 2013-06-30 13F Merck COM 58933Y105 32,278 32,278 1,499 0.5068
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.