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MRK Merck & Company, Inc. NYSE · United States

Merck & Company (MRK) news MRK class action news

Latest Merck & Company news

  1. Financings

    Aktis Oncology prices upsized IPO at $18, raising about $318 million

    The radiopharmaceutical developer sold 17.65 million shares on the Nasdaq, the first U.S. biotech IPO of 2026, after raising its offering size.

  2. Distress

    Merck approves 2025 restructuring program with about $3.0 billion in pretax costs

    Merck expects to eliminate certain positions in sales, administrative and research and development organizations and expects annual savings of approximately $1.7 billion, substantially realized by the end of 2027.

What Merck & Company does

Merck & Co., Inc. is a global health care company that delivers innovative health solutions through prescription medicines, including biologic therapies, vaccines and animal health products. It runs two reportable segments, Pharmaceutical and Animal Health. The Pharmaceutical segment sells human health medicines and vaccines, mainly to drug wholesalers and retailers, hospitals, government agencies and managed health care providers. Its lead product is Keytruda (pembrolizumab), an anti-PD-1 therapy approved for many cancer types, and Keytruda Qlex, a subcutaneous fixed combination of pembrolizumab and berahyaluronidase alfa. Welireg (belzutifan) treats certain von Hippel-Lindau disease-associated tumors and advanced renal cell carcinoma. Vaccines include Gardasil 9, which helps prevent certain cancers and diseases caused by human papillomavirus, along with ProQuad, M-M-R II and Varivax. Merck also records alliance revenue from Lynparza and Lenvima, and from Reblozyl. The Animal Health segment develops and markets veterinary pharmaceuticals and vaccines for livestock and companion animals, along with identification, traceability and monitoring products.

Product or programWhat it isStage
Keytruda (pembrolizumab)Anti-PD-1 therapy for many solid tumors and lymphomasapproved
Keytruda QlexSubcutaneous fixed combination of pembrolizumab and berahyaluronidase alfaapproved in the U.S.
Welireg (belzutifan)Treats certain VHL disease-associated tumors and advanced renal cell carcinomaapproved
Gardasil 9HPV vaccine to help prevent certain cancers and diseases

Summarised from the company's 10-K filed Feb 24, 2026.

Merck & Company annual financials

LineFY2025FY2024
Revenue$65.01 billion$64.17 billion
Research and development$15.79 billion$17.94 billion
Net income (loss)$18.25 billion$17.12 billion
Cash from operations$16.47 billion$21.47 billion
Cash and equivalents$14.56 billion$13.24 billion
Short-term investments$0$447.0 million

Latest balance sheet, Jun 30, 2026 (10-Q): cash and equivalents $6.85 billion, plus short-term investments of $292.0 million, $7.14 billion in all.

Figures as reported to the SEC in XBRL; each one links to its filing. Not adjusted, not investment advice.

Questions about Merck & Company

Is there a class action against Merck & Company?

Our latest story on this, dated Aug 7, 2026: "Merck faces securities class action over Gardasil demand in China, with derivative suits stayed". The story links the filing or release it is based on. Read the story.

What is the ticker symbol of Merck & Company?

Merck & Company, Inc. trades under the ticker MRK on NYSE.

Where is Merck & Company listed?

Merck & Company, Inc. is listed on NYSE. Our directory also records these other listings: BCBA:MRK; BCBA:MRK.CI; BCBA:MRKC; BCBA:MRKD; BIVA:MRK; BMFBOVESPA:MRCK34; BMV:MRK; BSESOF:6MK; BX:6MK; DUS:6MK; EUROTLX:4MRKX; FWB:6MK; GETTEX:6MK; HAM:6MK; HAN:6MK; LS:A0YD8Q; LSE:0QAH; LSX:A0YD8Q; MUN:6MK; NEO:MRK; SET:MRK03; SIX:MRK.USD; SWB:6MK; TRADEGATE:6MK; TSX:MRK; VIE:MRK; XETR:6MK.

What is the SEC CIK of Merck & Company?

The SEC Central Index Key (CIK) for Merck & Company, Inc. is 310158. Its filings are on SEC EDGAR.

How many shares does Merck & Company have outstanding?

2,467,171,638 shares as of 2026-07-31, per the cover page of its 10-Q filed 2026-08-07.

Which country or territory is Merck & Company listed under?

Our directory records Merck & Company, Inc. under United States.

What does Merck & Company do?

Our directory classifies Merck & Company, Inc. as: Pharmaceuticals: Major. This is a directory classification, not a description of the pipeline.

What is the ISIN of Merck & Company?

The ISIN recorded for Merck & Company, Inc. is US58933Y1055.

Does aibio.space cover Merck & Company?

aibio.space lists Merck & Company, Inc. among 2,820 public biotech companies and publishes its news here as stories appear.

Where is Merck & Company incorporated?

SEC records list its state or country of incorporation as NJ.

What does Merck & Company develop?

Merck & Co., Inc. is a global health care company that delivers innovative health solutions through prescription medicines, including biologic therapies, vaccines and animal health products. It runs two reportable segments, Pharmaceutical and Animal Health.

What is Keytruda (pembrolizumab) from Merck & Company?

Keytruda (pembrolizumab): Anti-PD-1 therapy for many solid tumors and lymphomas Stage: approved.

What is Keytruda Qlex from Merck & Company?

Keytruda Qlex: Subcutaneous fixed combination of pembrolizumab and berahyaluronidase alfa Stage: approved in the U.S..

What was Merck & Company's revenue last year?

$65.01 billion for the fiscal year ended Dec 31, 2025, as reported to the SEC.

Is Merck & Company profitable?

Merck & Company, Inc. reported net income of $18.25 billion for the fiscal year ended Dec 31, 2025, and generated $16.47 billion of cash from operations, per its annual report to the SEC.

Investor discussion: Merck & Company

Members talk about Merck & Company (MRK). Reader posts, not aibio.space reporting, and not investment advice.

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Capital-markets timeline

Financings, listing notices, splits, legal actions and other investor events at Merck & Company, newest first. Each line links the filing it comes from.

  1. Financings

    Reported a financing. SEC Form 424B5. Source

  2. Legal

    Disclosed a shareholder lawsuit, subpoena or other legal matter. SEC Form 10-Q. Source

  3. Mergers

    A tender offer for its shares was filed. SEC Form SC TO-T. Source

  4. Mergers

    A tender offer for its shares was filed. SEC Form SC TO-T. Source

  5. Financings

    Reported a financing. SEC Form 424B5. Source

  6. Financings

    Reported a financing. SEC Form 424B5. Source

  7. Distress

    Reported a restructuring, a workforce reduction or a review of strategic alternatives. SEC Form 8-K (Items 2.02,2.05,9.01). Source

  8. Legal

    Disclosed a shareholder lawsuit, subpoena or other legal matter. SEC Form 10-K. Source

Stock chart

Price chart and quote supplied by TradingView, delayed as the exchange requires. It loads only if you choose to show it. Information only, not investment advice. Open NYSE:MRK on TradingView.

SEC filings and registration

SEC name
Merck & Co., Inc.
CIK
310158
Industry (SIC)
Pharmaceutical Preparations (2834)
US tickers
MRK (NYSE)
State or country of incorporation
NJ
Fiscal year ends
December 31
Filer category
Large accelerated filer
Business address
126 EAST LINCOLN AVENUE, RAHWAY, NJ, 07065
Phone
908-740-4000
Shares outstanding
2,467,171,638 as of 2026-07-31 (10-Q filed 2026-08-07)
Former names
Merck & Co. Inc.; SCHERING PLOUGH CORP

Recent filings (8-K and 6-K are the company's own announcements)

  • 8-K filed 2026-10-13
  • 10-Q filed 2026-08-07
  • 8-K filed 2026-08-04
  • 8-K filed 2026-05-28
  • 8-K filed 2026-05-22
  • 424B5 filed 2026-05-20
  • 424B5 filed 2026-05-18
  • 10-Q filed 2026-05-04

Source: SEC EDGAR, retrieved October 23, 2026. Shares outstanding is the cover-page figure from the latest periodic report. The SEC does not publish share prices.

Listing details

Merck & Company, Inc. is a public biotech or pharmaceutical company listed on NYSE under the ticker MRK, recorded under United States. The directory classifies it as Pharmaceuticals: Major. aibio.space tracks 2,820 public biotech companies worldwide and publishes investor news on them.

Company
Merck & Company, Inc.
Ticker
MRK
Listing
NYSE
Country or territory
United States
Business scope
Pharmaceuticals: Major
ISIN
US58933Y1055
Other listed symbols
BCBA:MRK; BCBA:MRK.CI; BCBA:MRKC; BCBA:MRKD; BIVA:MRK; BMFBOVESPA:MRCK34; BMV:MRK; BSESOF:6MK; BX:6MK; DUS:6MK; EUROTLX:4MRKX; FWB:6MK; GETTEX:6MK; HAM:6MK; HAN:6MK; LS:A0YD8Q; LSE:0QAH; LSX:A0YD8Q; MUN:6MK; NEO:MRK; SET:MRK03; SIX:MRK.USD; SWB:6MK; TRADEGATE:6MK; TSX:MRK; VIE:MRK; XETR:6MK
Last quote in directory
2026-10-21
Directory source
Listing page

Listing facts come from our company directory, researched on October 22, 2026. A listing record does not certify that a security currently trades. Tell us about a change. Work at this company? Claim this page.

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