Insider and congress filings

Merck & Co., Inc. (MRK)

NYSE · Healthcare · 334 insider transactions · 318 congress trades · last filed 18 days agoS&P 500

9
Open-market insider filings shown
1d
Median delay on the insider filings, in business days
within the two business day rule
0 buys·9 sells
Purchases and sales in the filings shown
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About Merck & Co., Inc.

from the company's filings and listing, as of Oct 23, 2026
Exchange
NYSE
Sector
Healthcare
Industry
Drug Manufacturers - General
Chief executive
Robert Davis
Employees
74,000
Listed since
-
Market value
$363.3B
Price to earnings (12 mo)
116.9
Net income per share, as reported (12 mo)
$1.28
Dividend yield
2.31%

www.merck.com

Earnings

6 reported quarters · next on Oct 29, 2026
QuarterEPSEPS expectedRevenueRevenue expectedResult
Q2 FY2026reported Aug 4, 2026-$0.13-$0.27$16.6B$16.4BEPS beatRevenue in line
Q1 FY2026reported Apr 30, 2026-$1.28-$1.47$16.3B$15.8BEPS beatRevenue beat
Q4 FY2025reported Feb 3, 2026$2.04$2.01$16.4B$16.2BEPS in lineRevenue in line
Q3 FY2025reported Oct 30, 2025$2.58$2.36$17.3B$17.0BEPS beatRevenue beat
Q2 FY2025reported Jul 29, 2025$2.13$2.03$15.8B$15.9BEPS beatRevenue in line
Q1 FY2025reported Apr 24, 2025$2.22$2.13$15.5B$15.3BEPS beatRevenue in line

Actual against the consensus estimate at the time. A flag marks a beat or a miss of more than 1.5% either way; inside that band the quarter is in line. A flag reads n/a only when a number is missing. Quarterly EPS is the figure set against the consensus, usually adjusted, so the quarters need not add up to the 12-month net income per share above. An estimate is a forecast made by analysts, not a company target.

Executive pay

as filed for fiscal 2025 · proxy filed Apr 8, 2026
ExecutiveSalaryStock awardsOtherTotal
Robert M. DavisChairman, Chief Executive Officer and President$1.6M$12.1M$7.0M$20.8M
Dean Li, M.D., Ph.D.Executive Vice President and President, Merck Research Laboratories$1.5M$4.3M$3.1M$8.9M
Caroline LitchfieldExecutive Vice President and Chief Financial Officer$1.2M$3.6M$2.8M$7.5M
Jennifer ZacharyExecutive Vice President and General Counsel$1.1M$2.7M$2.1M$5.9M
Sanat ChattopadhyayExecutive Vice President and President, Merck Manufacturing Division$982K$2.4M$2.1M$5.4M

The summary compensation table from the proxy statement for fiscal 2025, with titles as filed then. Executives who have since left are not shown. Read the filing

Institutional holders

13F positions as of Jun 30, 2026
HolderValueSharesShares vs prior qtr% of shares out
BlackRock, Inc.$29.2B226,999,837+0.5%9.18%
Vanguard Capital Management LLC$20.7B161,323,174+0.2%6.53%
State Street Corp$15.6B120,413,256+0.9%4.87%
Wellington Management Group LLP$11.1B86,249,283+2.3%3.49%
Vanguard Portfolio Management LLC$8.7B67,738,969+0.6%2.74%
Geode Capital Management, LLC$7.8B60,744,214+2.0%2.46%
Charles Schwab Investment Management Inc$7.0B54,365,289+9.2%2.20%
Morgan Stanley$6.3B48,641,158+2.1%1.97%
FMR LLC$5.8B45,440,355+2.1%1.84%
JPMorgan Chase & Co.$5.7B43,886,420-17.2%1.78%
Fisher Asset Management, LLC$4.9B38,516,263+45.7%1.56%
Norges Bank$4.8B36,983,784New1.50%

A 13F reports long US equity positions and is filed within 45 days of the quarter end, so these are positions as they stood on Jun 30, 2026. New: not in this holder's prior 13F as reported; a change of filer ID can also show as new. For a manager's whole book see the fund directory. What a 13F covers and leaves out is explained in our guide to Form 13F.

Tracked fund managers holding MRK

7 managers
ManagerValueSharesShare of book
Cliff AsnessAQR Capital Management$1.0B8,134,2620.4%
Alyeska Investment Group$318.8M2,480,5900.8%
Adage Capital Partners$260.9M2,030,0230.4%
Woodline Partners$144.5M1,124,1490.4%
OrbiMed$85.2M663,4001.6%
Samlyn Capital$72.7M565,7551.2%
Farallon Capital$25.6M199,0000.1%

7 of the 97 fund managers we track list MRK shares among the largest positions in their latest 13F, filed for Q2 2026. A manager can hold it further down the book too, so this is a floor, not a count. Share of book is the position against the manager's whole disclosed 13F value.

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Open-market insider trades

9 filings shown · newest filing first
InsiderActionSharesPriceValueTrade dateDelay
(business days)
Chirfi GuindoEVP, Access, Policy & CommsSold10,000$135.00$1.4MAug 13, 2026filed Aug 13, 20260d
Jennifer ZacharyEVP, General CounselSold80,315$133.46$10.7MAug 12, 2026filed Aug 13, 20261d
Richard R. DeLucaEVP&Pres, Merck Animal HeallthSold · 2 lines11,699$131.63$1.5MAug 12, 2026filed Aug 12, 20260d
Richard R. DeLucaEVP&Pres, Merck Animal HeallthSold · 2 lines12,837$131.76$1.7MAug 11, 2026filed Aug 12, 20261d
Richard R. DeLucaEVP&Pres, Merck Animal HeallthSold20,784$130.43$2.7MAug 10, 2026filed Aug 12, 20262d
Richard R. DeLucaEVP&Pres, Merck Animal HeallthSold · 3 lines6,050$130.38$789KAug 6, 2026filed Aug 10, 20262d
David R. MaraldoEVP & Pres. MMDSold2,686$128.72$346KAug 5, 2026filed Aug 7, 20262d
Chirfi GuindoEVP, Access, Policy & CommsSold15,000$131.00$2.0MAug 6, 2026filed Aug 7, 20261d
David Michael WilliamsEVP, Chief Info&Digital OfficerSold34,705$128.77$4.5MAug 5, 2026filed Aug 7, 20262d

One row is one filing, newest filing first. A filing that reported its trade in several tranches is summed, priced at the weighted average, and marked with its line count. The delay counts business days from the trade to the filing, the unit of Form 4's two business day deadline: weekends and federal holidays are skipped. How the filing itself works is explained in our guide to Form 4.

Other Form 4 activity (20)
InsiderEventSharesDate
Christine E. SeidmanDirectorStock award56Sep 30, 2026
Mary Ellen CoeDirectorStock award206Sep 30, 2026
Surendralal Lanca KarsanbhaiDirectorStock award112Sep 30, 2026
Jennifer ZacharyEVP, General CounselOption exercise54,927Aug 12, 2026
David R. MaraldoEVP & Pres. MMDOption exercise18,706Aug 5, 2026
David Michael WilliamsEVP, Chief Info&Digital OfficerOption exercise52,847Aug 5, 2026
Mary Ellen CoeDirectorStock award233Jun 30, 2026
Surendralal Lanca KarsanbhaiDirectorStock award126Jun 30, 2026
Christine E. SeidmanDirectorStock award63Jun 30, 2026
Douglas M. Baker Jr.DirectorStock award1,853May 29, 2026
Pamela J. CraigDirectorStock award1,853May 29, 2026
Thomas H. GlocerDirectorStock award1,853May 29, 2026
Risa J. Lavizzo-MoureyDirectorStock award1,853May 29, 2026
Stephen MayoDirectorStock award1,853May 29, 2026
Paul RothmanDirectorStock award1,853May 29, 2026
Patricia F. RussoDirectorStock award1,853May 29, 2026
Christine E. SeidmanDirectorStock award1,853May 29, 2026
Inge G. ThulinDirectorStock award1,853May 29, 2026
Mary Ellen CoeDirectorStock award1,853May 29, 2026
Surendralal Lanca KarsanbhaiDirectorStock award1,853May 29, 2026

Awards, option exercises, shares withheld to cover tax and gifts all file on the same form as a purchase or a sale. None of them is a decision to trade, so they sit here rather than beside the ones that are.

Congress trades in MRK

20 disclosures of 318 on record · median 28d of the 45 allowed

Since the trade: the stock's move from the trade date to the latest close we hold (figures as of Oct 24, 2026), not the member's result. Not investment advice.

MemberTypeActionAmount disclosedStock since the tradeTrade dateDisclosedDelay
Maria Elvira SalazarStockSale$1,001 - $15,000-1.8%After the saleS&P 500 -1.2% · -0.6 pts vs S&P 500Sep 24, 2026Oct 7, 202613d
Maria Elvira SalazarStockPurchase$15,001 - $50,000-4.5%S&P 500 -1.2% · -3.4 pts vs S&P 500Aug 19, 2026Sep 9, 202621d
Ro KhannaStockPurchase$15,001 - $50,000+13.0%S&P 500 -1.7% · +14.7 pts vs S&P 500Aug 7, 2026Sep 4, 202628d
Ro KhannaStockPurchase$1,001 - $15,000-3.6%S&P 500 -0.5% · -3.1 pts vs S&P 500Aug 24, 2026Sep 4, 202611d
Ro KhannaStockPurchase$1,001 - $15,000+15.3%S&P 500 +1.9% · +13.4 pts vs S&P 500Jul 8, 2026Aug 7, 202630d
Alan ArmstrongSelfStockSale (Full)$15,001 - $50,000+21.4%After the saleS&P 500 +19.8% · +1.6 pts vs S&P 500Mar 27, 2026Jul 21, 2026116d
Ro KhannaStockPurchase$1,001 - $15,000+25.6%S&P 500 +0.1% · +25.6 pts vs S&P 500Jun 2, 2026Jul 6, 202634d
Ro KhannaStockPurchase$1,001 - $15,000+26.1%S&P 500 +1.3% · +24.9 pts vs S&P 500Jun 16, 2026Jul 6, 202620d
Ro KhannaStockSale$15,001 - $50,000+30.4%After the saleS&P 500 +2.8% · +27.6 pts vs S&P 500May 15, 2026Jun 9, 202625d
Ro KhannaStockPurchase$15,001 - $50,000+24.1%S&P 500 +12.2% · +11.9 pts vs S&P 500Mar 10, 2026Apr 7, 202628d
Josh GottheimerJointStockPurchase$1,001 - $15,000+22.8%S&P 500 +10.7% · +12.0 pts vs S&P 500Feb 4, 2026Mar 16, 202640d
Michael T. McCaulStockSale$15,001 - $50,000+34.2%After the saleS&P 500 +9.5% · +24.7 pts vs S&P 500Jan 13, 2026Feb 11, 202629d
Julie JohnsonJointStockSale$1,001 - $15,000+44.3%After the saleS&P 500 +12.3% · +32.0 pts vs S&P 500Dec 18, 2025Jan 15, 202628d
Gilbert Ray Cisneros, Jr.StockPurchase$1,001 - $15,000+43.7%S&P 500 +11.3% · +32.4 pts vs S&P 500Dec 19, 2025Jan 12, 202624d
Gilbert Ray Cisneros, Jr.StockPurchase$1,001 - $15,000+50.7%S&P 500 +15.1% · +35.6 pts vs S&P 500Nov 18, 2025Dec 15, 202527d
Julie JohnsonJointStockSale$1,001 - $15,000+56.3%After the saleS&P 500 +13.0% · +43.3 pts vs S&P 500Nov 13, 2025Dec 11, 202528d
Michael T. McCaulStockSale$15,001 - $50,000+65.1%After the saleS&P 500 +10.9% · +54.2 pts vs S&P 500Oct 27, 2025Nov 10, 202514d
Val T. HoyleSpouseStockSale$1,001 - $15,000+81.7%After the saleS&P 500 +14.2% · +67.5 pts vs S&P 500Sep 23, 2025Oct 10, 202517d
Sheri BiggsSpouseFiled lateStockSale$15,001 - $50,000+54.5%After the saleS&P 500 +34.0% · +20.5 pts vs S&P 500Mar 19, 2025Oct 5, 2025200d
Ro KhannaStockSale$1,001 - $15,000+84.9%After the saleS&P 500 +14.5% · +70.4 pts vs S&P 500Sep 29, 2025Oct 3, 20254d

Since the trade is an estimate, set beside the S&P 500 over the same window, with the gap between the two in percentage points. The filing carries a band, not a fill, and a sale keeps the stock's sign, so a positive figure after a sale means the stock kept rising after it. An option row carries the underlying stock's move. A row marked n/a is one we hold no figure for.

A delay above 45 days is the gap between the dates on the report; we mark a filing late only after checking it.

Every Congress trade in MRK, filterable by party, chamber, type and account.

Members of Congress reporting a position

largest 25 of 27 · estimate, as of Oct 22, 2026

27 members report a position (estimated). The largest estimated position is in the $500,001 - $1,000,000 band.

MemberParty, chamberEstimated positionShare of their portfolio
John W. HickenlooperDemocrat · Senate$500,001 - $1,000,0002.2%
J. French HillRepublican · House$100,001 - $250,0001.4%
Thomas H. Kean, Jr.Republican · House$100,001 - $250,0002.6%
Kelly MorrisonDemocrat · House$100,001 - $250,0000.7%
Kevin HernRepublican · House$100,001 - $250,0000.4%
Robert OnderRepublican · House$100,001 - $250,0002.1%
Lucy McBathDemocrat · House$50,001 - $100,0001.1%
Scott FranklinRepublican · House$50,001 - $100,0001.7%
Roger F. WickerRepublican · Senate$50,001 - $100,00021.8%
Maria Elvira SalazarRepublican · House$50,001 - $100,0002.6%
Randy FineRepublican · House$50,001 - $100,0003.0%
Gary C. PetersDemocrat · Senate$15,001 - $50,0001.3%
Susan M. CollinsRepublican · Senate$15,001 - $50,0001.1%
Gilbert Ray Cisneros, Jr.Democrat · House$15,001 - $50,0000.1%
Steve CohenDemocrat · House$15,001 - $50,0001.2%
Harriet M. HagemanRepublican · House$15,001 - $50,0000.7%
Shelley Moore CapitoRepublican · Senate$1,001 - $15,0000.5%
Michael A. RulliRepublican · House$1,001 - $15,0001.1%
Andy HarrisRepublican · House$1,001 - $15,00067.0%
Daniel MeuserRepublican · House$1,001 - $15,0000.5%
Jeff CrankRepublican · House$1,001 - $15,00041.0%
Julie JohnsonDemocrat · House$1,001 - $15,0000.1%
Rick LarsenDemocrat · House$1,001 - $15,0001.8%
Robert B. AderholtRepublican · House$1,001 - $15,0001.4%
Sam LiccardoDemocrat · House$1,001 - $15,0001.3%

The other 2 hold smaller estimated positions.

Estimate, as of Oct 22, 2026. Each position is modelled from the member's disclosed transactions and annual filings: the midpoint of each disclosed band, moved with the stock's price since the trade. It is a rough estimate of a reported position, not a figure from a filing, which is why it is shown as a band. Share of portfolio sets that estimate against the member's whole estimated public-stock portfolio.

Questions

Are insiders buying or selling MRK?

Across the 9 most recent open-market filings shown here, 0 were purchases and 9 were sales.

Which members of Congress have traded MRK?

Maria Elvira Salazar, Ro Khanna, Alan Armstrong, Josh Gottheimer, Michael T. McCaul, Julie Johnson and others disclosed MRK transactions in the filings shown here.

Which members of Congress hold MRK?

27 members of Congress report a position in MRK in the estimate we hold as of Oct 22, 2026. The largest estimated position belongs to John W. Hickenlooper; the next largest, in the $100,001 - $250,000 band, include J. French Hill and Thomas H. Kean, Jr. The estimate is built from disclosed transactions and annual filings, so it is shown as a band rather than a figure from a filing.

Is MRK in the S&P 500 or the Nasdaq 100?

Merck & Co., Inc. is a current member of the S&P 500, per the membership list we hold as of Oct 26, 2026. Current members of either index get a page here whatever their filing history.

How quickly are MRK trades disclosed?

Insider filings on this page reached the public a median of 1 business day after the transaction (weekends and federal holidays skipped), against the two business days Form 4 allows. Congressional disclosures took a median of 28 days, against the 45 the STOCK Act allows.

How to read a Form 4

A DECISION THE INSIDER MADE

POpen-market purchase. Bought with their own money at the market price.
SOpen-market sale. Sold on the market. A sale marked scheduled was set up in advance under a Rule 10b5-1 plan, often months before.

COMPENSATION PLUMBING

AStock award. Granted as pay, not bought.
MOption exercise. Converting options already held into shares.
FTax withholding. Shares handed back to the company to pay the tax on a grant.
GGift. Given away, with no money changing hands.

Congress rows disclose a value range rather than an exact amount, and the STOCK Act allows up to 45 days to report. Full sourcing and the limits of this data are on the methodology page. A filing is a record of a transaction, not a signal, and nothing here is investment advice.

Data as of Oct 26, 2026.

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