Marsh & Mclennan Companies, Inc. SEC filings MRSH
Marsh & Mclennan Companies, Inc. has 1,005 filings in SEC EDGAR's recent list, going back to Mar 7, 2018. Its latest annual report, Form ARS, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 15, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 27, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| CERT | Nyse certification | Oct 28, 2026 | — |
| 8-A12B | Filing | Oct 27, 2026 | — |
| 8-K |
Current report
Other events
|
Oct 27, 2026 | Oct 27, 2026 |
| 424B2 | Prospectus | Oct 22, 2026 | — |
| FWP | Free writing prospectus | Oct 20, 2026 | — |
| 424B2 | Prospectus | Oct 19, 2026 | — |
| 10-Q | Quarterly report | Oct 15, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 15, 2026 | Oct 15, 2026 |
| 25-NSE | Delisting notice | Sep 21, 2026 | — |
| 10-Q | Quarterly report | Jul 21, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 21, 2026 | Jul 21, 2026 |
| 11-K | Employee savings plan report | Jun 22, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 22, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Jun 4, 2026 | Jun 2, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2026 | May 21, 2026 |
| 10-Q | Quarterly report | Apr 16, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 16, 2026 | Apr 16, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 14, 2026 | Apr 8, 2026 |
| ARS | Annual report to shareholders | Mar 31, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 31, 2026 | — |
| DEF 14A | Proxy statement | Mar 31, 2026 | May 21, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 10, 2026 | Mar 10, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 25, 2026 | Feb 25, 2026 |
| 8-K |
Current report
Other events
|
Feb 19, 2026 | Feb 19, 2026 |
| 424B2 | Prospectus | Feb 13, 2026 | — |
| FWP | Free writing prospectus | Feb 11, 2026 | — |
| 424B2 | Prospectus | Feb 11, 2026 | — |
| S-8 | Employee stock plan registration | Feb 10, 2026 | — |
| 10-K | Annual report | Feb 9, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2026 | Jan 29, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 14, 2026 | Jan 14, 2026 |
| 10-Q | Quarterly report | Oct 16, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2025 | Oct 16, 2025 |
| 10-Q | Quarterly report | Jul 17, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 17, 2025 | Jul 17, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 9, 2025 | Jul 9, 2025 |
| 11-K | Employee savings plan report | Jun 24, 2025 | Dec 31, 2024 |
| 11-K | Employee savings plan report | Jun 24, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2025 | May 19, 2025 |
| 10-Q | Quarterly report | Apr 17, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2025 | Apr 17, 2025 |
| PX14A6G | Filing | Apr 9, 2025 | — |
| ARS | Annual report to shareholders | Mar 28, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 28, 2025 | — |
| DEF 14A | Proxy statement | Mar 28, 2025 | May 15, 2025 |
| 10-K | Annual report | Feb 10, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Jan 30, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Agreement ended, Acquisition or sale of assets, Other events
|
Nov 15, 2024 | Nov 15, 2024 |
| 8-K |
Current report
Other events
|
Nov 8, 2024 | Nov 8, 2024 |
| 424B2 | Prospectus | Nov 1, 2024 | — |
| FWP | Free writing prospectus | Oct 31, 2024 | — |
| 424B2 | Prospectus | Oct 30, 2024 | — |
| 10-Q | Quarterly report | Oct 17, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 17, 2024 | Oct 17, 2024 |
| 8-K |
Current report
Material agreement
|
Sep 30, 2024 | Sep 29, 2024 |
| S-3ASR | Automatic shelf registration | Jul 24, 2024 | — |
| 10-Q | Quarterly report | Jul 18, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 18, 2024 | Jul 18, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 10, 2024 | Jul 10, 2024 |
| 8-K | Current report | Jun 24, 2024 | Jun 24, 2024 |
| 11-K | Employee savings plan report | Jun 14, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 14, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 17, 2024 | May 16, 2024 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| 10-Q | Quarterly report | Apr 18, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 18, 2024 | Apr 18, 2024 |
| ARS | Annual report to shareholders | Mar 29, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 29, 2024 | — |
| DEF 14A | Proxy statement | Mar 29, 2024 | May 16, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 14, 2024 | Mar 8, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 23, 2024 | Feb 22, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 20, 2024 | Feb 14, 2024 |
| 424B2 | Prospectus | Feb 15, 2024 | — |
| FWP | Free writing prospectus | Feb 14, 2024 | — |
| 424B2 | Prospectus | Feb 14, 2024 | — |
| 10-K | Annual report | Feb 12, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 9, 2024 | Feb 5, 2024 |
| 8-K |
Current report
Results of operations
|
Jan 25, 2024 | Jan 25, 2024 |
| 10-Q | Quarterly report | Oct 19, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 19, 2023 | Oct 19, 2023 |
| 8-K |
Current report
Officer or director change
|
Oct 12, 2023 | Oct 9, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 11, 2023 | Sep 6, 2023 |
| 424B2 | Prospectus | Sep 7, 2023 | — |
| FWP | Free writing prospectus | Sep 6, 2023 | — |
| 424B2 | Prospectus | Sep 6, 2023 | — |
| UPLOAD | Letter from the SEC | Jul 21, 2023 | — |
| 10-Q | Quarterly report | Jul 20, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 20, 2023 | Jul 20, 2023 |
| CORRESP | Letter to the SEC | Jul 12, 2023 | — |
| 11-K | Employee savings plan report | Jun 16, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 16, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 12, 2023 | Jun 12, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2023 | May 18, 2023 |
| 10-Q | Quarterly report | Apr 20, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 20, 2023 | Apr 20, 2023 |
| ARS | Annual report to shareholders | Mar 31, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Mar 31, 2023 | — |
| DEF 14A | Proxy statement | Mar 31, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Mar 29, 2023 | Mar 29, 2023 |
| CORRESP | Letter to the SEC | Mar 29, 2023 | — |
| UPLOAD | Letter from the SEC | Mar 16, 2023 | — |
| 8-K |
Current report
Material agreement, Other events
|
Mar 9, 2023 | Mar 6, 2023 |
| 424B2 | Prospectus | Mar 8, 2023 | — |
| FWP | Free writing prospectus | Mar 6, 2023 | — |
| 424B2 | Prospectus | Mar 6, 2023 | — |
| 10-K | Annual report | Feb 13, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Jan 26, 2023 | Jan 26, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 14, 2022 | Sep 26, 2022 |
| UPLOAD | Letter from the SEC | Nov 7, 2022 | — |
| 8-K |
Current report
Material agreement, Other events
|
Oct 31, 2022 | Oct 31, 2022 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 27, 2022 | Oct 27, 2022 |
| 424B2 | Prospectus | Oct 26, 2022 | — |
| CORRESP | Letter to the SEC | Oct 26, 2022 | — |
| FWP | Free writing prospectus | Oct 24, 2022 | — |
| 424B2 | Prospectus | Oct 24, 2022 | — |
| 10-Q | Quarterly report | Oct 20, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 20, 2022 | Oct 20, 2022 |
| 8-K |
Current report
Officer or director change
|
Sep 26, 2022 | Sep 23, 2022 |
| UPLOAD | Letter from the SEC | Sep 20, 2022 | — |
| 10-Q | Quarterly report | Jul 21, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 21, 2022 | Jul 21, 2022 |
| 11-K | Employee savings plan report | Jun 17, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 17, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2022 | May 19, 2022 |
| 10-Q | Quarterly report | Apr 21, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 21, 2022 | Apr 21, 2022 |
| DEFA14A | Additional proxy material | Apr 1, 2022 | — |
| DEF 14A | Proxy statement | Apr 1, 2022 | May 19, 2022 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 29, 2022 | Feb 11, 2022 |
| 10-K | Annual report | Feb 16, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 14, 2022 | Feb 11, 2022 |
| 8-K |
Current report
Results of operations
|
Jan 27, 2022 | Jan 27, 2022 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 9, 2021 | Dec 9, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 7, 2021 | Dec 7, 2021 |
| 424B2 | Prospectus | Dec 3, 2021 | — |
| FWP | Free writing prospectus | Dec 1, 2021 | — |
| 424B2 | Prospectus | Dec 1, 2021 | — |
| 8-K |
Current report
Officer or director change
|
Nov 22, 2021 | Nov 17, 2021 |
| 10-Q | Quarterly report | Oct 21, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 21, 2021 | Oct 21, 2021 |
| S-3ASR | Automatic shelf registration | Jul 27, 2021 | — |
| 10-Q | Quarterly report | Jul 22, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 22, 2021 | Jul 22, 2021 |
| 11-K | Employee savings plan report | Jun 25, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 25, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2021 | May 20, 2021 |
| 10-Q | Quarterly report | Apr 27, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2021 | Apr 27, 2021 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Apr 2, 2021 | Apr 2, 2021 |
| DEFA14A | Additional proxy material | Mar 31, 2021 | — |
| DEF 14A | Proxy statement | Mar 31, 2021 | May 20, 2021 |
| 10-K | Annual report | Feb 17, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 28, 2021 | Jan 28, 2021 |
| 10-Q | Quarterly report | Oct 30, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2020 | Oct 29, 2020 |
| S-8 POS | Form s-8 pos | Jul 31, 2020 | — |
| S-8 POS | Form s-8 pos | Jul 31, 2020 | — |
| S-8 | Employee stock plan registration | Jul 31, 2020 | — |
| 10-Q | Quarterly report | Jul 31, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2020 | Jul 30, 2020 |
| 11-K | Employee savings plan report | Jun 29, 2020 | Dec 31, 2019 |
| 11-K | Employee savings plan report | Jun 29, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 27, 2020 | May 21, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
May 7, 2020 | May 7, 2020 |
| 424B2 | Prospectus | May 5, 2020 | — |
| FWP | Free writing prospectus | May 4, 2020 | — |
| 424B2 | Prospectus | May 4, 2020 | — |
| 10-Q | Quarterly report | May 1, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2020 | Apr 30, 2020 |
| 8-K |
Current report
Officer or director change
|
Apr 29, 2020 | Apr 29, 2020 |
| DEFA14A | Additional proxy material | Apr 24, 2020 | — |
| DEFA14A | Additional proxy material | Apr 3, 2020 | — |
| DEF 14A | Proxy statement | Apr 3, 2020 | May 21, 2020 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 18, 2020 | Feb 19, 2020 |
| 10-K | Annual report | Feb 20, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Officer or director change
|
Feb 19, 2020 | Feb 19, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 30, 2020 | Jan 30, 2020 |
| 10-Q | Quarterly report | Oct 30, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2019 | Oct 29, 2019 |
| 10-Q | Quarterly report | Aug 2, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2019 | Jul 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 18, 2019 | Jul 18, 2019 |
| 11-K | Employee savings plan report | Jun 28, 2019 | Dec 31, 2018 |
| 11-K | Employee savings plan report | Jun 28, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 6, 2019 | Jun 6, 2019 |
| 8-K/A | Amended current report | Jun 6, 2019 | Apr 1, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2019 | May 16, 2019 |
| 10-Q | Quarterly report | Apr 26, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2019 | Apr 25, 2019 |
| 8-K |
Current report
Agreement ended, Acquisition or sale of assets, Other events
|
Apr 1, 2019 | Apr 1, 2019 |
| DEFA14A | Additional proxy material | Mar 29, 2019 | — |
| DEF 14A | Proxy statement | Mar 29, 2019 | May 16, 2019 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 27, 2019 | Mar 27, 2019 |
| CERT | Nyse certification | Mar 25, 2019 | — |
| 424B2 | Prospectus | Mar 21, 2019 | — |
| 8-A12B | Form 8-a12b | Mar 21, 2019 | — |
| 8-K |
Current report
Material agreement, Other events
|
Mar 21, 2019 | Mar 20, 2019 |
| FWP | Free writing prospectus | Mar 20, 2019 | — |
| 424B2 | Prospectus | Mar 20, 2019 | — |
| 424B2 | Prospectus | Mar 15, 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
- Insurance Agents, Brokers & Service (SIC 6411)
- Listed as
- MRSH (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Large accelerated filer
- SEC CIK
- 62709
- Former names
- MARSH & MCLENNAN COMPANIES INC (until Jan 31, 2005)
Other Insurance Agents, Brokers & Service companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.