Follow the people · Insider
Katherine Brennan
Katherine Brennan files insider transactions with the SEC as a svp and general counsel of Marsh & Mclennan Companies (MRSH). We hold 1 disclosed purchase or sale filed since 27 February 2023, 1 of them in the last 90 days.
- Files forMRSH
- Disclosed buys and sells1 in all, 1 in the last 90 days
- Last disclosure3 September 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 24 February 2026 — 2 September 2026SVP and General Counsel · Marsh & Mclennan Companies (MRSH)14 Form 4 lines · source: SEC Form 4
- Filed 23 February 2023 — 28 February 2025SVP and General Counsel · Marsh & Mclennan Companies (MMC)15 Form 4 lines · source: SEC Form 4
Everything they disclosed
29 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 1,197 shares of Marsh & Mclennan CompaniesSEC Form 43 September 2026Common Stock · traded 2 September 2026 · filed 3 September 2026
- ▼ sold on the open market 1,197 shares of Marsh & Mclennan CompaniesSEC Form 43 September 2026Common Stock · traded 2 September 2026 · filed 3 September 2026
- exercised options over 1,197 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 43 September 2026Stock Options (Right to Buy) · traded 2 September 2026 · filed 3 September 2026
- was granted 5,963 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 41 May 2026Restricted Stock Units · traded 1 May 2026 · filed 1 May 2026
- exercised options over 6,970 shares of Marsh & Mclennan CompaniesSEC Form 43 March 2026Common Stock · traded 28 February 2026 · filed 3 March 2026
- had shares withheld for tax on 3,855 shares of Marsh & Mclennan CompaniesSEC Form 43 March 2026Common Stock · traded 28 February 2026 · filed 3 March 2026
- exercised options over 6,970 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 43 March 2026Restricted Stock Units · traded 28 February 2026 · filed 3 March 2026
- exercised options over 6,970 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 43 March 2026Restricted Stock Units · traded 28 February 2026 · filed 3 March 2026
- exercised options over 6,970 shares of Marsh & Mclennan CompaniesSEC Form 43 March 2026Common Stock · traded 28 February 2026 · filed 3 March 2026
- had shares withheld for tax on 3,855 shares of Marsh & Mclennan CompaniesSEC Form 43 March 2026Common Stock · traded 28 February 2026 · filed 3 March 2026
- was granted 22,372 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 426 February 2026Stock Options (Right to Buy) · traded 24 February 2026 · filed 26 February 2026
- was granted 6,970 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 426 February 2026Restricted Stock Units · traded 24 February 2026 · filed 26 February 2026
- was granted 22,372 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 426 February 2026Stock Options (Right to Buy) · traded 24 February 2026 · filed 26 February 2026
- was granted 6,970 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 426 February 2026Restricted Stock Units · traded 24 February 2026 · filed 26 February 2026
- exercised options over 2,315 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 44 March 2025Restricted Stock Units · traded 28 February 2025 · filed 4 March 2025
- exercised options over 2,315 shares of Marsh & Mclennan CompaniesSEC Form 44 March 2025Common Stock · traded 28 February 2025 · filed 4 March 2025
- had shares withheld for tax on 1,282 shares of Marsh & Mclennan CompaniesSEC Form 44 March 2025Common Stock · traded 28 February 2025 · filed 4 March 2025
- was granted 15,702 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 420 February 2025Stock Options (Right to Buy) · traded 18 February 2025 · filed 20 February 2025
- was granted 1,736 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 420 February 2025Restricted Stock Units · traded 18 February 2025 · filed 20 February 2025
- exercised options over 3,557 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 41 March 2024Restricted Stock Units · traded 28 February 2024 · filed 1 March 2024
- exercised options over 3,557 shares of Marsh & Mclennan CompaniesSEC Form 41 March 2024Common Stock · traded 28 February 2024 · filed 1 March 2024
- had shares withheld for tax on 1,968 shares of Marsh & Mclennan CompaniesSEC Form 41 March 2024Common Stock · traded 28 February 2024 · filed 1 March 2024
- was granted 16,066 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 423 February 2024Stock Options (Right to Buy) · traded 22 February 2024 · filed 23 February 2024
- was granted 2,234 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 423 February 2024Restricted Stock Units · traded 22 February 2024 · filed 23 February 2024
- exercised options over 3,568 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 42 March 2023Restricted Stock Units · traded 28 February 2023 · filed 2 March 2023
- exercised options over 3,568 shares of Marsh & Mclennan CompaniesSEC Form 42 March 2023Common Stock · traded 28 February 2023 · filed 2 March 2023
- had shares withheld for tax on 1,975 shares of Marsh & Mclennan CompaniesSEC Form 42 March 2023Common Stock · traded 28 February 2023 · filed 2 March 2023
- was granted 15,505 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 427 February 2023Stock Options (Right to Buy) · traded 23 February 2023 · filed 27 February 2023
- was granted 1,684 shares of Marsh & Mclennan Companies (a derivative holding)SEC Form 427 February 2023Restricted Stock Units · traded 23 February 2023 · filed 27 February 2023
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.