Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionFreestone Capital Holdings, LLC
Latest Disclosed Ownership81,403 shares
Latest Disclosed Value $ 9,791,958
Freestone Capital Holdings, LLC ownership in 6MK / Merck & Co., Inc.

On May 13, 2026 - Freestone Capital Holdings, LLC filed a 13F-HR form disclosing ownership of 81,403 shares of Merck & Co., Inc. (BG:6MK) valued at $9,791,958 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 87,135 shares of Merck & Co., Inc.. This represents a change in shares of -6.58% during the quarter.

Freestone Capital Holdings, LLC has a history of taking positions in derivatives of the underlying security (6MK) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BG:6MK / Merck & Co., Inc. Historical Put/Call Ratio
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 81,403 -5,732 -6.58 9,792 6.76 0.2970
2026-01-23 2025-12-31 13F MERCK COM 58933Y105 87,135 720 0.83 9,172 26.46 0.2714
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 86,415 1,539 1.81 7,253 7.95 0.2221
2025-08-05 2025-06-30 13F MERCK COM 58933Y105 84,876 13,135 18.31 6,719 4.33 0.2267
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 71,741 635 0.89 6,440 -8.96 0.2402
2025-02-06 2024-12-31 13F MERCK COM 58933Y105 71,106 1,067 1.52 7,074 -11.07 0.2446
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 70,039 3,244 4.86 7,954 -3.82 0.2733
2024-11-22 2024-06-30 13F/A-1 MERCK COM 58933Y105 66,795 2,011 3.10 8,269 -3.26 0.2955
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 66,795 2,011 8,269 0.2955
2024-11-22 2024-03-31 13F/A-1 MERCK COM 58933Y105 64,784 462 0.72 8,548 21.91 0.3184
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 64,784 462 8,548 0.3184
2024-02-13 2023-12-31 13F MERCK COM 58933Y105 64,322 825 1.30 7,012 7.27 0.3147
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 63,497 -3,706 -5.51 6,537 -15.70 0.3458
2023-08-09 2023-06-30 13F MERCK COM 58933Y105 67,203 -1,249 -1.82 7,755 6.48 0.3125
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 68,452 -2,611 -3.67 7,283 -7.64 0.3226
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 71,063 -14,998 -17.43 7,884 6.37 0.3607
2022-11-09 2022-09-30 13F MERCK COM 58933Y105 86,061 -19,783 -18.69 7,412 -23.19 0.3343
2022-08-09 2022-06-30 13F MERCK COM 58933Y105 105,844 -43,005 -28.89 9,650 -20.99 0.3683
2022-05-12 2022-03-31 13F MERCK COM 58933Y105 148,849 -24,475 -14.12 12,213 -8.06 0.4908
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 173,324 -7,311 -4.05 13,284 -2.09 0.5613
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 180,635 16,749 10.22 13,567 6.45 0.6804
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 163,886 21,421 15.04 12,745 16.04 0.6396
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 142,465 18,053 14.51 10,983 7.93 0.5974
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 124,412 6,842 5.82 10,177 4.35 0.5938
2020-11-06 2020-09-30 13F MERCK & CO. COM 58933Y105 117,570 17,651 17.67 9,752 26.21 0.6354
2020-08-04 2020-06-30 13F MERCK & CO. COM 58933Y105 99,919 -21,943 -18.01 7,727 -17.59 0.0906
2020-05-12 2020-03-31 13F MERCK & CO. COM 58933Y105 121,862 50,957 71.87 9,376 45.39 0.2028
2020-02-04 2019-12-31 13F MERCK COM 58933Y105 70,905 41,437 140.62 6,449 159.94 0.1336
2019-11-07 2019-09-30 13F MERCK COM 58933Y105 29,468 5,718 24.08 2,481 24.61 0.0598
2019-08-05 2019-06-30 13F MERCK COM 58933Y105 23,750 -1,444 -5.73 1,991 -4.96 0.0510
2019-05-08 2019-03-31 13F MERCK COM 58933Y105 25,194 1,586 6.72 2,095 16.13 0.1243
2019-02-11 2018-12-31 13F MERCK COM 58933Y105 23,608 512 2.22 1,804 10.13 0.1222
2018-11-10 2018-09-30 13F MERCK COM 58933Y105 23,096 8,620 59.55 1,638 86.35 0.0103
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 14,476 473 3.38 879 15.20 0.0055
2018-05-15 2018-03-31 13F MERCK COM 58933Y105 14,003 4,729 50.99 763 46.17 0.0445
2018-02-13 2017-12-31 13F MERCK COM 58933Y105 9,274 70 0.76 522 -11.38 0.0362
2017-11-14 2017-09-30 13F MERCK COM 58933Y105 9,204 68 0.74 589 0.51 0.0419
2017-08-14 2017-06-30 13F/A-1 MERCK COM 58933Y105 9,136 178 1.99 586 2.99 0.0456
2017-08-09 2017-06-30 13F MERCK COM 58933Y105 9,136 178 586 47,159.4101
2017-05-15 2017-03-31 13F MERCK COM 58933Y105 8,958 574 6.85 569 15.18 0.0439
2017-02-17 2016-12-31 13F/A-2 MERCK COM 58933Y105 8,384 -1,466 -14.88 494 -19.67 0.0424
2017-02-14 2016-12-31 13F/A-1 MERCK COM 58933Y105 8,384 0 494 0.0424
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 8,384 -1,466 494 42,428.3806
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 9,850 -2,935 -22.96 615 -16.55 0.0562
2016-08-10 2016-06-30 13F MERCK COM 58933Y105 12,785 -2,666 -17.25 737 -9.90 0.0720
2016-05-12 2016-03-31 13F MERCK & CO INC COM 58933Y105 15,451 932 6.42 818 6.65 0.0860
2016-02-10 2015-12-31 13F MERCK & CO INC COM 58933Y105 14,519 1,280 9.67 767 17.28 0.0794
2015-11-12 2015-09-30 13F MERCK & CO INC COM 58933Y105 13,239 -3,761 -22.12 654 -23.15 0.0710
2014-02-13 2013-12-31 13F MERCK & CO INC COM 58933Y105 17,000 -22,448 -56.91 851 -53.29 0.1509
2013-11-14 2013-09-30 13F MERCK & CO INC COM 58933Y105 39,448 21,322 117.63 1,822 116.39 0.3245
2013-08-15 2013-06-30 13F MERCK & CO INC COM 58933Y105 18,126 18,126 842 0.1727
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2014-02-13 2013-12-31 13F MERCK & CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2013-11-14 2013-09-30 13F MERCK & CO INC COM Put 6,000 286 n/a n/a n/a
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.