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Merck & Co., Inc.

MRK
Exchange
NYSE
Industry
Pharmaceutical Preparations
SEC CIK
0000310158

In the last 90 days, Merck & Co., Inc. insiders filed 0 open-market purchases and 7 sales; 3,855 institutions reported holding it in 13F filings for Q2 2026, worth $254.3B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Fairfax Financial.

13F holders, Q2 2023

Institutional positions in Merck & Co., Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
3,261
+97 vs. Q1 2023
Shares held
1.94B
−53.5M (−2.7%) vs. Q1 2023
Total value
$222.8B
+$17.8B (+8.7%) vs. Q1 2023
New holders
185
1,232 more added
Sold out
88
1,462 more reduced

23 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 3,262 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,962 institutionsQ2 2022: 3,020 institutionsQ3 2022: 2,997 institutionsQ4 2022: 3,244 institutionsQ1 2023: 3,188 institutionsQ2 2023: 3,262 institutionsQ3 2023: 3,222 institutionsQ4 2023: 3,444 institutionsQ1 2024: 3,547 institutionsQ2 2024: 3,558 institutionsQ3 2024: 3,502 institutionsQ4 2024: 3,619 institutionsQ1 2025: 3,460 institutionsQ2 2025: 3,338 institutionsQ3 2025: 3,320 institutionsQ4 2025: 3,675 institutionsQ1 2026: 3,813 institutionsQ2 2026: 3,855 institutions
Value heldQ2 2023: $222.8B
Q1 2021: $143.2BQ2 2021: $144.3BQ3 2021: $138.8BQ4 2021: $142.2BQ1 2022: $152.1BQ2 2022: $171.5BQ3 2022: $162.7BQ4 2022: $212.2BQ1 2023: $205.1BQ2 2023: $222.8BQ3 2023: $197.7BQ4 2023: $211.6BQ1 2024: $256.9BQ2 2024: $242.3BQ3 2024: $221.8BQ4 2024: $196.9BQ1 2025: $177.7BQ2 2025: $155.9BQ3 2025: $159.8BQ4 2025: $206.6BQ1 2026: $231.9BQ2 2026: $254.3B
Institutions holding MRK and their total value by quarter
QuarterHoldersValue
Q2 20263,855$254.3B
Q1 20263,813$231.9B
Q4 20253,675$206.6B
Q3 20253,320$159.8B
Q2 20253,338$155.9B
Q1 20253,460$177.7B
Q4 20243,619$196.9B
Q3 20243,502$221.8B
Q2 20243,558$242.3B
Q1 20243,547$256.9B
Q4 20233,444$211.6B
Q3 20233,222$197.7B
Q2 20233,262$222.8B
Q1 20233,188$205.1B
Q4 20223,244$212.2B
Q3 20222,997$162.7B
Q2 20223,020$171.5B
Q1 20222,962$152.1B
Q4 20212,910$142.2B
Q3 20212,658$138.8B
Q2 20212,684$144.3B
Q1 20212,693$143.2B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q1 2023.

Institutions holding MRK in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
LPL Financial LLC2,304,657$265.9M0.19%+80,682+3.6%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.2,290,286$264.3M0.55%+166,539+7.8%Added
Skandinaviska Enskilda Banken AB (publ)2,259,130$260.7M1.71%+389,402+20.8%Added
Beutel, Goodman & Co Ltd.2,231,446$257.5M1.44%+176,009+8.6%Added
ABN AMRO Bank N.V.2,111,642$244.5M4.97%−26,146−1.2%Reduced
Thrivent Financial for Lutherans2,097,147$241.9M0.55%−19,230−0.9%Reduced
Toronto Dominion Bank2,082,936$240.2M0.36%+250,243+13.7%Added
Capital Research Global Investors2,039,143$235.3M0.06%+3910.0%Added
Russell Investments Group, Ltd.2,032,262$233.2M0.45%−465,983−18.7%Reduced
Pictet Asset Management SA2,020,561$233.2M0.28%+82,739+4.3%Added
1832 Asset Management L.P.2,005,049$231.4M0.45%−736,184−26.9%Reduced
American Century Companies Inc1,901,239$219.4M0.17%−142,331−7.0%Reduced
Aviva PLC1,866,221$215.3M0.88%+447,732+31.6%Added
Bank Julius Baer & Co. Ltd, Zurich1,865,417$215.3M1.28%+55,503+3.1%Added
Janney Montgomery Scott LLC1,857,691$214.4M0.75%+8,699+0.5%Added
Citadel Advisors LLC1,839,871$212.3M0.24%+1,068,727+138.6%Added
SRB Corp1,809,229$208.8M12.25%+5510.0%Added
KBC Group NV1,787,299$206.2M0.85%−84,015−4.5%Reduced
Antipodes Partners Ltd1,749,158$201.8M6.97%−107,402−5.8%Reduced
Mackenzie Financial Corp1,762,114$201.5M0.31%−775,785−30.6%Reduced
Eagle Asset Management Inc1,742,630$201.1M1.12%−36,208−2.0%Reduced
AXA S.A.1,718,113$198.3M0.66%−64,844−3.6%Reduced
STRS Ohio1,691,635$195.2M0.82%−40,202−2.3%Reduced
Railway Pension Investments Ltd1,688,150$194.8M1.94%+26,500+1.6%Added
US Bancorp1,678,815$193.7M0.32%−534,162−24.1%Reduced
King Luther Capital Management Corp1,668,666$192.5M0.96%+16,390+1.0%Added
Storebrand Asset Management AS1,668,648$192.5M0.88%+58,306+3.6%Added
Bessemer Group Inc1,633,278$188.5M0.40%+169,319+11.6%Added
Jennison Associates LLC1,618,268$186.7M0.15%+430,320+36.2%Added
State of Wisconsin Investment Board1,614,950$186.3M0.52%−27,992−1.7%Reduced
Kames Capital plc1,607,660$185.3M3.00%+472,603+41.6%Added
Lazard Freres Gestion S.A.S.1,590,615$179.4M5.50%+24,319+1.6%Added
Mariner, LLC1,536,275$177.3M0.47%+28,102+1.9%Added
Handelsbanken Fonder AB1,536,212$177.3M0.95%+389,764+34.0%Added
Lazard Asset Management LLC1,535,618$177.2M0.22%−13,699−0.9%Reduced
Public Employees Retirement System of Ohio1,523,942$175.8M0.71%−7,290−0.5%Reduced
Chevy Chase Trust Holdings, Inc.1,516,880$175.0M0.66%−15,300−1.0%Reduced
SEI Investments Co1,506,762$173.9M0.30%−88,013−5.5%Reduced
State of New Jersey Common Pension Fund D1,495,894$172.6M0.58%00.0%Unchanged
Voya Investment Management LLC1,487,086$171.6M0.18%+7,807+0.5%Added
Thornburg Investment Management Inc1,486,465$171.5M2.78%−21,801−1.4%Reduced
Commonwealth Equity Services, LLC1,466,977$169.3M0.34%+1,374+0.1%Added
Regions Financial Corp1,466,871$169.3M1.46%−40,081−2.7%Reduced
Retirement Systems of Alabama1,449,800$167.3M0.75%−172,693−10.6%Reduced
Boston Partners1,444,177$166.6M0.22%−133,036−8.4%Reduced
Susquehanna International Group, LLP1,430,332$165.0M0.27%−726,296−33.7%Reduced
Asset Management One Co.,Ltd.1,427,612$164.7M0.70%−16,886−1.2%Reduced
BNP Paribas Arbitrage, SA1,390,668$160.5M0.32%−366,129−20.8%Reduced
Natixis Advisors, L.P.1,389,306$160.3M0.49%+88,634+6.8%Added
Epoch Investment Partners, Inc.1,380,672$159.3M0.92%−18,961−1.4%Reduced
Bridgewater Associates, LP1,360,944$157.0M0.97%+447,960+49.1%Added
Commerce Bank1,352,675$156.1M1.17%+186,832+16.0%Added
Advisor Group Holdings, Inc.1,347,838$155.1M0.28%−46,907−3.4%Reduced
Parnassus Investments1,337,970$154.4M0.36%−593,737−30.7%Reduced
Brandywine Global Investment Management, LLC1,335,018$154.0M1.28%−123,600−8.5%Reduced
D. E. Shaw & Co., Inc.1,313,409$151.6M0.24%−810,055−38.1%Reduced
Virginia Retirement Systems Et Al1,313,393$151.6M1.45%+35,000+2.7%Added
Kempen Capital Management N.V.1,284,483$148.2M2.67%+9,226+0.7%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,249,670$144.2M0.45%−279,058−18.3%Reduced
State of Tennessee, Treasury Department1,239,171$143.0M0.60%−95,528−7.2%Reduced
Penserra Capital Management LLC1,235,661$142.6M2.82%+468,262+61.0%Added
Treasurer of the State of North Carolina1,229,967$141.9M0.74%−5430.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)1,219,910$140.8M0.62%+28,848+2.4%Added
Nomura Asset Management Co Ltd1,215,626$140.3M0.65%−3,570−0.3%Reduced
Mn Services Vermogensbeheer B.V.1,212,199$139.9M1.30%−45,700−3.6%Reduced
Keybank National Association1,173,222$135.4M0.61%−20,178−1.7%Reduced
CIBC Private Wealth Group, LLC1,171,943$135.2M0.30%+27,273+2.4%Added
Zacks Investment Management1,170,540$135.1M1.70%+29,274+2.6%Added
Zurich Insurance Group Ltd1,162,582$134.2M1.39%−14,532−1.2%Reduced
AMF Pensionsforsakring AB1,136,733$131.3M1.21%−148,247−11.5%Reduced
Rockefeller Capital Management L.P.1,122,233$128.0M0.50%+31,590+2.9%Added
Cerity Partners LLC1,089,283$125.9M0.49%+61,350+6.0%Added
Public Sector Pension Investment Board1,085,546$125.3M0.90%−35,972−3.2%Reduced
Royal London Asset Management Ltd1,064,952$122.8M0.40%+148,727+16.2%Added
Mirae Asset Global Investments Co., Ltd.1,054,358$121.0M0.26%+74,202+7.6%Added
Captrust Financial Advisors1,034,751$119.4M0.47%+55,104+5.6%Added
National Bank of Canada1,039,687$119.2M0.24%+103,464+11.1%Added
Great Lakes Advisors, LLC1,025,533$118.3M1.18%−136,927−11.8%Reduced
Hudson Bay Capital Management LP1,000,000$115.4M1.16%+1,000,000New
Renaissance Technologies LLC968,152$111.7M0.16%−1,681,107−63.5%Reduced
Fifth Third Bancorp946,023$109.2M0.48%+37,121+4.1%Added
Glenmede Trust Co NA1,026,005$109.2M0.62%−3020.0%Reduced
Brandes Investment Partners, LP940,274$108.5M2.19%−5,787−0.6%Reduced
Balyasny Asset Management LLC935,224$107.9M0.30%+301,830+47.7%Added
Acadian Asset Management LLC917,469$105.8M0.44%−148,141−13.9%Reduced
Clark Capital Management Group, Inc.907,144$104.7M0.94%+24,639+2.8%Added
Allspring Global Investments Holdings, LLC905,425$104.5M0.17%−46,233−4.9%Reduced
Atalanta Sosnoff Capital, LLC885,611$102.2M2.77%−20,788−2.3%Reduced
CIBC World Markets Inc.884,513$102.1M0.35%−88,888−9.1%Reduced
Woodline Partners LP882,500$101.8M1.21%+180,697+25.7%Added
Ci Investments Inc.876,418$101.1M0.51%+163,845+23.0%Added
Crawford Investment Counsel Inc861,103$99.4M2.02%−9,916−1.1%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund857,530$99.0M1.21%+41,500+5.1%Added
Rathbone Brothers plc853,597$98.5M0.92%+119,933+16.3%Added
Banque Pictet & Cie SA844,276$97.4M0.85%+79,442+10.4%Added
Haverford Trust Co834,964$96.3M1.09%−7,118−0.8%Reduced
Tocqueville Asset Management L.P.807,483$93.2M1.67%−710.0%Reduced
ING Groep NV786,777$90.8M0.69%−73,205−8.5%Reduced
Calamos Advisors LLC782,141$90.3M0.46%+68,896+9.7%Added
UniSuper Management Pty Ltd781,845$90.2M1.02%+781,845New