Merck & Co., Inc. SEC filings MRK
Merck & Co., Inc. has 1,007 filings in SEC EDGAR's recent list, going back to May 29, 2018. Its latest annual report, Form ARS, was filed on Apr 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 2026 |
| 25-NSE | Delisting notice | Oct 15, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Oct 13, 2026 | Oct 9, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 11-K | Employee savings plan report | Jun 24, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 24, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 24, 2026 | Dec 31, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
May 28, 2026 | May 26, 2026 |
| 8-K |
Current report
Other events
|
May 22, 2026 | May 22, 2026 |
| 424B5 | Prospectus supplement | May 20, 2026 | — |
| FWP | Free writing prospectus | May 19, 2026 | — |
| 424B5 | Prospectus supplement | May 18, 2026 | — |
| SC TO-T/A | Filing | May 5, 2026 | — |
| 10-Q | Quarterly report | May 4, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2026 | Apr 30, 2026 |
| SC TO-T/A | Filing | Apr 24, 2026 | — |
| ARS | Annual report to shareholders | Apr 8, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 8, 2026 | — |
| DEF 14A | Proxy statement | Apr 8, 2026 | May 26, 2026 |
| SC TO-T | Filing | Apr 7, 2026 | — |
| 10-K | Annual report | Feb 24, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 3, 2026 | Feb 3, 2026 |
| SC TO-T/A | Filing | Jan 7, 2026 | — |
| SC TO-T/A | Filing | Dec 19, 2025 | — |
| SC TO-T/A | Filing | Dec 17, 2025 | — |
| SC TO-T | Filing | Dec 5, 2025 | — |
| 8-K |
Current report
Other events
|
Dec 4, 2025 | Dec 4, 2025 |
| 424B5 | Prospectus supplement | Dec 3, 2025 | — |
| FWP | Free writing prospectus | Dec 2, 2025 | — |
| 424B5 | Prospectus supplement | Dec 1, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2025 | Oct 30, 2025 |
| 8-K |
Current report
Other events
|
Sep 9, 2025 | Sep 9, 2025 |
| 424B5 | Prospectus supplement | Sep 4, 2025 | — |
| FWP | Free writing prospectus | Sep 3, 2025 | — |
| 424B5 | Prospectus supplement | Sep 2, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Jul 29, 2025 | Jul 25, 2025 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
May 29, 2025 | May 27, 2025 |
| PX14A6G | National legal and policy center - px14a6g | May 7, 2025 | — |
| 10-Q | Quarterly report | May 2, 2025 | Mar 31, 2025 |
| UPLOAD | Letter from the SEC | Apr 28, 2025 | — |
| 8-K |
Current report
Results of operations
|
Apr 24, 2025 | Apr 24, 2025 |
| PX14A6G | Filing | Apr 24, 2025 | — |
| CORRESP | Letter to the SEC | Apr 16, 2025 | — |
| ARS | Annual report to shareholders | Apr 15, 2025 | Dec 31, 2024 |
| PX14A6G | Filing | Apr 14, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 10, 2025 | — |
| DEFA14A | Additional proxy material | Apr 9, 2025 | — |
| DEF 14A | Proxy statement | Apr 9, 2025 | May 27, 2025 |
| 10-K | Annual report | Feb 25, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2025 | Feb 4, 2025 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Nov 22, 2024 | Nov 19, 2024 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 25-NSE | Delisting notice | Nov 4, 2024 | — |
| 8-K |
Current report
Results of operations
|
Oct 31, 2024 | Oct 31, 2024 |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2024 | Jul 30, 2024 |
| 11-K | Employee savings plan report | Jun 25, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 25, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 25, 2024 | Dec 31, 2023 |
| CERT | Nyse certification | May 30, 2024 | — |
| 8-A12B | Filing | May 30, 2024 | — |
| 8-K |
Current report
Shareholder vote results, Other events
|
May 30, 2024 | May 28, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2024 | — |
| 424B5 | Prospectus supplement | May 20, 2024 | — |
| FWP | Free writing prospectus | May 16, 2024 | — |
| 424B5 | Prospectus supplement | May 15, 2024 | — |
| POSASR | Filing | May 14, 2024 | — |
| 10-Q | Quarterly report | May 3, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2024 | Apr 25, 2024 |
| ARS | Annual report to shareholders | Apr 11, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 11, 2024 | — |
| DEF 14A | Proxy statement | Apr 11, 2024 | May 28, 2024 |
| 10-K/A | Amended annual report | Apr 11, 2024 | Dec 31, 2023 |
| PX14A6G | Inspire investing, llc - px14a6g | Apr 1, 2024 | — |
| PX14A6G | Bowyer research - px14a6g | Mar 28, 2024 | — |
| S-3ASR | Automatic shelf registration | Mar 19, 2024 | — |
| S-3ASR | Automatic shelf registration | Mar 19, 2024 | — |
| 10-K | Annual report | Feb 26, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 20, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Feb 1, 2024 | Jan 29, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 28, 2023 | Nov 21, 2023 |
| 10-Q | Quarterly report | Nov 3, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2023 | Oct 26, 2023 |
| 10-Q | Quarterly report | Aug 7, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2023 | Aug 1, 2023 |
| 11-K | Employee savings plan report | Jun 27, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 27, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2023 | May 23, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 22, 2023 | — |
| PX14A6G | Filing | May 18, 2023 | — |
| 8-K |
Current report
Other events
|
May 17, 2023 | May 17, 2023 |
| 424B5 | Prospectus supplement | May 10, 2023 | — |
| FWP | Free writing prospectus | May 9, 2023 | — |
| 424B5 | Prospectus supplement | May 8, 2023 | — |
| 10-Q | Quarterly report | May 5, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2023 | Apr 27, 2023 |
| PX14A6G | Filing | Apr 24, 2023 | — |
| PX14A6G | Filing | Apr 19, 2023 | — |
| PX14A6G | Filing | Apr 12, 2023 | — |
| ARS | Annual report to shareholders | Apr 3, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 3, 2023 | — |
| DEF 14A | Proxy statement | Apr 3, 2023 | — |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2023 | Feb 2, 2023 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Oct 27, 2022 | Oct 26, 2022 |
| 10-Q | Quarterly report | Aug 5, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2022 | Jul 28, 2022 |
| 11-K | Employee savings plan report | Jun 15, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 15, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 15, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2022 | May 24, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 20, 2022 | — |
| PX14A6G | Filing | May 13, 2022 | — |
| 10-Q | Quarterly report | May 5, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2022 | Apr 28, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Apr 21, 2022 | Apr 20, 2022 |
| DEFA14A | Additional proxy material | Apr 4, 2022 | — |
| DEF 14A | Proxy statement | Apr 4, 2022 | May 24, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Mar 25, 2022 | Mar 22, 2022 |
| 10-K | Annual report | Feb 25, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 3, 2022 | Feb 3, 2022 |
| 8-K |
Current report
Other events
|
Dec 10, 2021 | Dec 10, 2021 |
| 424B5 | Prospectus supplement | Dec 9, 2021 | — |
| FWP | Free writing prospectus | Dec 8, 2021 | — |
| 424B5 | Prospectus supplement | Dec 7, 2021 | — |
| 10-Q | Quarterly report | Nov 5, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2021 | Oct 28, 2021 |
| 25-NSE | Delisting notice | Oct 15, 2021 | — |
| 8-K |
Current report
Officer or director change
|
Aug 20, 2021 | Aug 19, 2021 |
| 10-Q | Quarterly report | Aug 9, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2021 | Jul 29, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 21, 2021 | Jun 21, 2021 |
| 11-K | Employee savings plan report | Jun 16, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 16, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 16, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Acquisition or sale of assets
|
Jun 3, 2021 | Jun 2, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 27, 2021 | May 25, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2021 | — |
| PX14A6G | Filing | May 6, 2021 | — |
| 8-K | Current report | May 5, 2021 | May 3, 2021 |
| 10-Q | Quarterly report | May 5, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2021 | Apr 29, 2021 |
| DEFA14A | Additional proxy material | Apr 5, 2021 | — |
| DEF 14A | Proxy statement | Apr 5, 2021 | May 25, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 26, 2021 | Mar 23, 2021 |
| S-3ASR | Automatic shelf registration | Mar 25, 2021 | — |
| S-3ASR | Automatic shelf registration | Mar 25, 2021 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 24, 2021 | Mar 24, 2021 |
| 10-K | Annual report | Feb 25, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Officer or director change
|
Feb 4, 2021 | Feb 1, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2021 | Feb 4, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 1, 2021 | Jan 26, 2021 |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2020 | Oct 27, 2020 |
| 10-Q | Quarterly report | Aug 5, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2020 | Jul 31, 2020 |
| 8-K |
Current report
Other events
|
Jun 24, 2020 | Jun 24, 2020 |
| 11-K | Employee savings plan report | Jun 23, 2020 | Dec 31, 2019 |
| 11-K | Employee savings plan report | Jun 23, 2020 | Dec 31, 2019 |
| 11-K | Employee savings plan report | Jun 23, 2020 | Dec 31, 2019 |
| 424B5 | Prospectus supplement | Jun 18, 2020 | — |
| FWP | Free writing prospectus | Jun 16, 2020 | — |
| 424B5 | Prospectus supplement | Jun 16, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
May 29, 2020 | May 26, 2020 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2020 | — |
| DEFA14A | Additional proxy material | May 8, 2020 | — |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2020 | Apr 28, 2020 |
| DEFA14A | Additional proxy material | Apr 6, 2020 | — |
| DEF 14A | Proxy statement | Apr 6, 2020 | May 26, 2020 |
| 10-K | Annual report | Feb 26, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 5, 2020 | Feb 5, 2020 |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2020 | Jan 28, 2020 |
| SC TO-T/A | Filing | Jan 16, 2020 | — |
| SC TO-T/A | Filing | Jan 6, 2020 | — |
| SC TO-T/A | Filing | Jan 3, 2020 | — |
| SC TO-T/A | Filing | Jan 2, 2020 | — |
| SC TO-T/A | Sc-to-t/a | Dec 30, 2019 | — |
| SC TO-T | Filing | Dec 17, 2019 | — |
| SC TO-C | Filing | Dec 9, 2019 | — |
| 10-Q | Quarterly report | Nov 5, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2019 | Oct 29, 2019 |
| S-8 | Employee stock plan registration | Aug 12, 2019 | — |
| 10-Q | Quarterly report | Aug 6, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2019 | Jul 30, 2019 |
| 11-K | Employee savings plan report | Jun 20, 2019 | Dec 31, 2018 |
| 11-K | Employee savings plan report | Jun 20, 2019 | Dec 31, 2018 |
| 11-K | Employee savings plan report | Jun 20, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 31, 2019 | May 31, 2019 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- MRK (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- NJ
- Headquarters
- Rahway, NJ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 310158
- Former names
- Merck & Co. Inc. (until Dec 9, 2014); SCHERING PLOUGH CORP (until Oct 29, 2009)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
- Pfizer Inc PFE
Source: SEC EDGAR filings. This is company-reported data, not investment advice.