Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionDeutsche Bank Ag\
Latest Disclosed Ownership12,540,774 shares
Latest Disclosed Value $ 1,508,529,702
Deutsche Bank Ag\ ownership in MRK / Merck & Co., Inc.

On May 6, 2026 - Deutsche Bank Ag\ filed a 13F-HR form disclosing ownership of 12,540,774 shares of Merck & Co., Inc. (MX:MRK) valued at $1,508,529,702 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 12,788,311 shares of Merck & Co., Inc.. This represents a change in shares of -1.94% during the quarter.

Deutsche Bank Ag\ has a history of taking positions in derivatives of the underlying security (MRK) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

MX:MRK / 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)
2026-05-06 2026-03-31 13F MERCK COM 58933Y105 12,540,774 -247,537 -1.94 1,508,530 12.07 0.4984
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 12,788,311 -4,058,050 -24.09 1,346,098 -4.80 0.4383
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 16,846,361 -196,261 -1.15 1,413,915 4.80 0.4738
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 17,042,622 -2,129,824 -11.11 1,349,094 -21.61 0.4967
2025-05-09 2025-03-31 13F MERCK COM 58933Y105 19,172,446 -74,011 -0.38 1,720,919 -10.12 0.6820
2025-06-30 2024-12-31 13F/A-1 MERCK COM 58933Y105 19,246,457 -322,355 -1.65 1,914,638 -13.84 0.7495
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 19,246,457 -322,355 1,914,638 0.7471
2025-06-26 2024-09-30 13F/A-1 MERCK COM 58933Y105 19,568,812 -1,235,294 -5.94 2,222,234 -13.72 0.9044
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 19,568,812 -1,235,294 2,222,234 0.9045
2025-06-12 2024-06-30 13F/A-1 MERCK COM 58933Y105 20,804,106 -438,981 -2.07 2,575,548 -8.12 1.1620
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 20,804,106 -438,981 2,575,548 1.1621
2025-06-02 2024-03-31 13F/A-1 MERCK COM 58933Y105 21,243,087 -330,685 -1.53 2,803,025 19.18 1.3010
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 21,243,087 -330,685 2,803,025 1.3011
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 21,573,772 2,249,770 11.64 2,351,973 18.22 1.1998
2023-11-24 2023-09-30 13F/A-1 MERCK COM 58933Y105 19,324,002 -2,197,976 -10.21 1,989,406 -19.89 1.2847
2023-11-09 2023-09-30 13F MERCK COM 58933Y105 19,324,002 -2,197,976 1,989,406 0.2620
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 21,521,978 -1,162,820 -5.13 2,483,421 2.90 1.3204
2023-05-15 2023-03-31 13F MERCK COM 58933Y105 22,684,798 1,890,526 9.09 2,413,436 4.61 1.3439
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 20,794,272 -614,680 -2.87 2,307,124 25.13 1.3277
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 21,408,952 -373,533 -1.71 1,843,740 -7.16 1.1128
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 21,782,485 -1,353,712 -5.85 1,985,909 4.61 1.1084
2022-05-13 2022-03-31 13F MERCK COM 58933Y105 23,136,197 1,539,377 7.13 1,898,327 14.69 0.8856
2022-02-16 2021-12-31 13F/A-1 MERCK & CO. COM 58933Y105 21,596,820 -229,187 -1.05 1,655,180 0.97 0.7442
2022-02-11 2021-12-31 13F MERCK & CO. COM 58933Y105 21,596,820 -229,187 1,655,180 0.7425
2021-11-04 2021-09-30 13F MERCK & CO. COM 58933Y105 21,826,007 169,140 0.78 1,639,354 -2.67 0.7777
2021-08-11 2021-06-30 13F MERCK & CO. COM 58933Y105 21,656,867 430,292 2.03 1,684,253 2.93 0.8180
2021-05-13 2021-03-31 13F MERCK & CO. COM 58933Y105 21,226,575 1,158,744 5.77 1,636,356 -0.32 0.8813
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 20,067,831 -72,764 -0.36 1,641,549 -1.74 1.0022
2020-11-12 2020-09-30 13F MERCK & CO. COM 58933Y105 20,140,595 -2,827,866 -12.31 1,670,662 -5.94 1.1491
2020-08-13 2020-06-30 13F MERCK & CO. COM 58933Y105 22,968,461 75,448 0.33 1,776,151 0.84 1.3499
2020-05-14 2020-03-31 13F MERCK & CO. COM 58933Y105 22,893,013 -439,448 -1.88 1,761,388 -17.00 1.5725
2020-02-14 2019-12-31 13F MERCK COM 58933Y105 23,332,461 1,494,835 6.85 2,122,076 15.44 1.3826
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 21,837,626 171,915 0.79 1,838,279 1.19 1.2763
2019-08-14 2019-06-30 13F MERCK COM 58933Y105 21,665,711 2,236,445 11.51 1,816,660 12.42 1.0662
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 19,429,266 800,230 4.30 1,615,923 13.52 0.9620
2019-04-01 2018-12-31 13F/A-1 MERCK COM 58933Y105 18,629,036 -5,989,313 -24.33 1,423,435 -18.49 1.0094
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 18,629,036 -588,973 1,423,435
2021-12-21 2018-09-30 13F/A-1 MERCK & CO. COM 58933Y105 24,618,349 -2,054,226 -7.70 1,746,426 7.87 0.8831
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 19,218,009 -7,454,566 1,363,318 0.9421
2020-04-21 2018-06-30 13F/A-1 MERCK COM 58933Y105 26,672,575 -2,572,369 -8.80 1,619,025 1.64 0.8063
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 21,324,526 -7,920,418 1,294,388 859,729.2840
2019-10-23 2018-03-31 13F/A-2 MERCK COM 58933Y105 29,244,944 5,511,796 23.22 1,592,962 19.28 0.7602
2019-10-18 2018-03-31 13F/A-1 MERCK COM 58933Y105 29,244,944 0 1,592,962 0.7602
2018-05-15 2018-03-31 13F MERCK COM 58933Y105 23,007,231 -725,917 1,253,196
2018-02-14 2017-12-31 13F MERCK COM 58933Y105 23,733,148 2,919,544 14.03 1,335,455 0.21 0.8555
2017-11-14 2017-09-30 13F MERCK COM 58933Y105 20,813,604 4,685 0.02 1,332,688 -0.07 0.9132
2017-08-11 2017-06-30 13F MERCK COM 58933Y105 20,808,919 1,511,199 7.83 1,333,636 8.76 0.9520
2017-05-15 2017-03-31 13F MERCK COM 58933Y105 19,297,720 1,828,152 10.46 1,226,171 19.23 0.9056
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 17,469,568 -2,350,574 -11.86 1,028,426 -16.86 0.8270
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 19,820,142 -1,508,453 -7.07 1,236,966 0.67 0.8758
2016-08-15 2016-06-30 13F MERCK COM 58933Y105 21,328,595 -59,551 -0.28 1,228,731 8.58 0.8677
2016-05-16 2016-03-31 13F MERCK & CO INC COM 58933Y105 21,388,146 -1,607,067 -6.99 1,131,640 -6.83 0.8526
2016-02-16 2015-12-31 13F MERCK & CO INC COM 58933Y105 22,995,213 2,647,978 13.01 1,214,598 20.86 0.8404
2015-11-17 2015-09-30 13F MERCK & CO INC COM 58933Y105 20,347,235 -391,405 -1.89 1,004,941 -14.88 0.7769
2015-08-12 2015-06-30 13F MERCK & CO INC COM 58933Y105 20,738,640 2,014,130 10.76 1,180,642 9.70 0.7536
2015-05-15 2015-03-31 13F MERCK & CO INC COM 58933Y105 18,724,510 563,142 3.10 1,076,276 4.35 0.6695
2015-02-13 2014-12-31 13F MERCK & CO INC COM 58933Y105 18,161,368 -10,509,905 -36.66 1,031,378 -39.32 0.6362
2014-11-14 2014-09-30 13F MERCK & CO INC COM 58933Y105 28,671,273 1,446,447 5.31 1,699,625 7.92 1.0553
2014-08-15 2014-06-30 13F MERCK & CO INC COM 58933Y105 27,224,826 -2,437,801 -8.22 1,574,948 -6.47 1.0700
2014-05-15 2014-03-31 13F MERCK & CO INC COM 58933Y105 29,662,627 4,210,871 16.54 1,683,936 32.19 1.1962
2014-02-24 2013-12-31 13F/A-1 MERCK & CO INC COM 58933Y105 25,451,756 4,497,685 21.46 1,273,851 27.69 0.9157
2014-02-18 2013-12-31 13F MERCK & CO INC COM 58933Y105 25,451,756 1,273,851
2013-11-18 2013-09-30 13F MERCK & CO INC COM 58933Y105 20,954,071 206,532 1.00 997,592 3.52 0.7364
2013-08-16 2013-06-30 13F MERCK & CO INC COM 058933Y10 20,747,539 20,747,539 963,714 0.7901
Disclosed Call 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
(%)
2020-11-12 2020-09-30 13F MERCK & CO. COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-13 2020-06-30 13F MERCK & CO. COM Call 75 -78.99 6 -78.57 n/a n/a n/a
2020-05-14 2020-03-31 13F MERCK & CO. COM Call 357 -43.69 28 -50.00 n/a n/a n/a
2020-02-14 2019-12-31 13F MERCK COM Call 634 0.00 56 7.69 n/a n/a n/a
2019-11-14 2019-09-30 13F MERCK COM Call 634 -33.89 52 -34.18 n/a n/a n/a
2019-08-14 2019-06-30 13F MERCK COM Call 959 109.39 79 107.89 n/a n/a n/a
2019-05-15 2019-03-31 13F MERCK COM Call 458 -5.57 38 2.70 n/a n/a n/a
2019-04-01 2018-12-31 13F/A MERCK COM Call 485 -61.01 37 -57.95 n/a n/a n/a
2019-02-14 2018-12-31 13F MERCK COM Call 485 37 n/a n/a n/a
2021-12-21 2018-09-30 13F/A MERCK & CO. COM Call 1,244 0.00 88 15.79 n/a n/a n/a
2018-11-14 2018-09-30 13F MERCK COM Call 1,244 88 n/a n/a n/a
2020-04-21 2018-06-30 13F/A MERCK COM Call 1,244 46.70 76 68.89 n/a n/a n/a
2018-08-14 2018-06-30 13F MERCK COM Call 1,244 75 n/a n/a n/a
2019-10-18 2018-03-31 13F/A MERCK COM Call 848 45 n/a n/a n/a
2019-10-23 2018-03-31 13F/A MERCK COM Call 848 41.81 45 36.36 n/a n/a n/a
2018-05-15 2018-03-31 13F MERCK COM Call 848 45 n/a n/a n/a
2018-02-14 2017-12-31 13F MERCK COM Call 598 -1.97 33 -15.38 n/a n/a n/a
2017-11-14 2017-09-30 13F MERCK COM Call 610 883.87 39 1,200.00 n/a n/a n/a
2017-08-11 2017-06-30 13F MERCK COM Call 62 -97.19 3 -97.84 n/a n/a n/a
2017-05-15 2017-03-31 13F MERCK COM Call 2,203 65.14 139 78.21 n/a n/a n/a
2017-02-14 2016-12-31 13F MERCK COM Call 1,334 -44.94 78 -48.00 n/a n/a n/a
2016-11-14 2016-09-30 13F MERCK COM Call 2,423 -19.18 150 -12.79 n/a n/a n/a
2016-08-15 2016-06-30 13F MERCK COM Call 2,998 -0.83 172 8.18 n/a n/a n/a
2016-05-16 2016-03-31 13F MERCK & CO INC COM Call 3,023 -41.34 159 -41.54 n/a n/a n/a
2016-02-16 2015-12-31 13F MERCK & CO INC COM Call 5,153 -23.63 272 -18.32 n/a n/a n/a
2015-11-17 2015-09-30 13F MERCK & CO INC COM Call 6,747 58.72 333 37.60 n/a n/a n/a
2015-08-12 2015-06-30 13F MERCK & CO INC COM Call 4,251 6.68 242 5.68 n/a n/a n/a
2015-05-15 2015-03-31 13F MERCK & CO INC COM Call 3,985 -72.01 229 -71.66 n/a n/a n/a
2015-02-13 2014-12-31 13F MERCK & CO INC COM Call 14,235 -45.27 808 -47.57 n/a n/a n/a
2014-11-14 2014-09-30 13F MERCK & CO INC COM Call 26,008 -10.98 1,541 -8.76 n/a n/a n/a
2014-08-15 2014-06-30 13F MERCK & CO INC COM Call 29,215 -6.91 1,689 1,319.33 n/a n/a n/a
2014-05-15 2014-03-31 13F MERCK & CO INC COM Call 31,383 87.57 119 357.69 n/a n/a n/a
2014-02-24 2013-12-31 13F/A MERCK & CO INC COM Call 16,731 -2.70 26 13.04 n/a n/a n/a
2014-02-18 2013-12-31 13F MERCK & CO INC COM Call 16,731 26 n/a n/a n/a
2013-11-18 2013-09-30 13F MERCK & CO INC COM Call 17,195 120.99 23 64.29 n/a n/a n/a
2013-08-16 2013-06-30 13F MERCK & CO INC COM Call 7,781 14 n/a n/a n/a
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
(%)
2020-08-13 2020-06-30 13F MERCK & CO. COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-14 2020-03-31 13F MERCK & CO. COM Put 644 50 n/a n/a n/a
2019-11-14 2019-09-30 13F MERCK COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-06-30 13F MERCK COM Put 2,250 188 n/a n/a n/a
2019-05-15 2019-03-31 13F MERCK COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-04-01 2018-12-31 13F/A MERCK COM Put 1,458 0.00 110 6.80 n/a n/a n/a
2019-02-14 2018-12-31 13F MERCK COM Put 1,458 110 n/a n/a n/a
2021-12-21 2018-09-30 13F/A MERCK & CO. COM Put 1,458 101.94 103 134.09 n/a n/a n/a
2018-11-14 2018-09-30 13F MERCK COM Put 1,458 102 n/a n/a n/a
2020-04-21 2018-06-30 13F/A MERCK COM Put 722 298.90 44 388.89 n/a n/a n/a
2018-08-14 2018-06-30 13F MERCK COM Put 722 43 n/a n/a n/a
2019-10-23 2018-03-31 13F/A MERCK COM Put 181 -91.59 9 -92.56 n/a n/a n/a
2019-10-18 2018-03-31 13F/A MERCK COM Put 181 9 n/a n/a n/a
2018-05-15 2018-03-31 13F MERCK COM Put 181 9 n/a n/a n/a
2018-02-14 2017-12-31 13F MERCK COM Put 2,152 617.33 121 536.84 n/a n/a n/a
2017-11-14 2017-09-30 13F MERCK COM Put 300 0.00 19 0.00 n/a n/a n/a
2017-08-11 2017-06-30 13F MERCK COM Put 300 -53.85 19 -53.66 n/a n/a n/a
2017-05-15 2017-03-31 13F MERCK COM Put 650 -37.26 41 -31.67 n/a n/a n/a
2017-02-14 2016-12-31 13F MERCK COM Put 1,036 -22.46 60 -27.71 n/a n/a n/a
2016-11-14 2016-09-30 13F MERCK COM Put 1,336 -93.48 83 -92.96 n/a n/a n/a
2016-08-15 2016-06-30 13F MERCK COM Put 20,477 1,271.53 1,179 1,411.54 n/a n/a n/a
2016-05-16 2016-03-31 13F MERCK & CO INC COM Put 1,493 -77.63 78 -77.78 n/a n/a n/a
2016-02-16 2015-12-31 13F MERCK & CO INC COM Put 6,673 -0.37 351 6.36 n/a n/a n/a
2015-11-17 2015-09-30 13F MERCK & CO INC COM Put 6,698 1,770.95 330 1,550.00 n/a n/a n/a
2015-08-12 2015-06-30 13F MERCK & CO INC COM Put 358 -92.04 20 -92.25 n/a n/a n/a
2015-05-15 2015-03-31 13F MERCK & CO INC COM Put 4,500 -94.68 258 -94.62 n/a n/a n/a
2015-02-13 2014-12-31 13F MERCK & CO INC COM Put 84,536 212.77 4,800 199.63 n/a n/a n/a
2014-11-14 2014-09-30 13F MERCK & CO INC COM Put 27,028 26.75 1,602 29.93 n/a n/a n/a
2014-08-15 2014-06-30 13F MERCK & CO INC COM Put 21,324 599.38 1,233 n/a n/a n/a
2014-02-24 2013-12-31 13F/A MERCK & CO INC COM Put 3,049 -73.55 0 -100.00 n/a n/a n/a
2014-02-18 2013-12-31 13F MERCK & CO INC COM Put 3,049 0 n/a n/a n/a
2013-11-18 2013-09-30 13F MERCK & CO INC COM Put 11,529 26.29 2 -84.62 n/a n/a n/a
2013-08-16 2013-06-30 13F MERCK & CO INC COM Put 9,129 13 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.