Follow the people · Insider
Walter D. Bay
Walter D. Bay files insider transactions with the SEC as a general counsel of Gallagher Arthur J & Co (AJG). We hold 1 disclosed purchase or sale filed since 7 March 2008, 1 of them in the last 90 days.
- Files forAJG
- Disclosed buys and sells1 in all, 1 in the last 90 days
- Last disclosure26 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 16 August 2007 — 24 August 2026General Counsel · Gallagher Arthur J & Co (AJG)270 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 12,000 shares of Arthur J. Gallagher & CoSEC Form 426 August 2026Common Stock · traded 24 August 2026 · filed 26 August 2026
- exercised options over 1,415 shares of Arthur J. Gallagher & CoSEC Form 41 April 2026Common Stock · traded 31 March 2026 · filed 1 April 2026
- had shares withheld for tax on 627 shares of Arthur J. Gallagher & CoSEC Form 41 April 2026Common Stock · traded 31 March 2026 · filed 1 April 2026
- exercised options over 1,415 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 41 April 2026Phantom Stock · traded 31 March 2026 · filed 1 April 2026
- was granted 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock (restricted) · traded 15 March 2026 · filed 17 March 2026
- exercised options over 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock (restricted) · traded 15 March 2026 · filed 17 March 2026
- exercised options over 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock · traded 15 March 2026 · filed 17 March 2026
- had shares withheld for tax on 2,411 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock · traded 15 March 2026 · filed 17 March 2026
- was granted 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock (restricted) · traded 15 March 2026 · filed 17 March 2026
- exercised options over 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock (restricted) · traded 15 March 2026 · filed 17 March 2026
- exercised options over 7,090 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock · traded 15 March 2026 · filed 17 March 2026
- had shares withheld for tax on 2,411 shares of Arthur J. Gallagher & CoSEC Form 417 March 2026Common Stock · traded 15 March 2026 · filed 17 March 2026
- was granted 1,982 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 46 March 2026Phantom Stock · traded 4 March 2026 · filed 6 March 2026
- was granted 1,982 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 46 March 2026Phantom Stock · traded 4 March 2026 · filed 6 March 2026
- was granted 16,952 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 43 March 2026Non-qualified Stock Option · traded 1 March 2026 · filed 3 March 2026
- was granted 16,952 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 43 March 2026Non-qualified Stock Option · traded 1 March 2026 · filed 3 March 2026
- exercised options over 15,850 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 423 December 2025Non-qualified Stock Option · traded 19 December 2025 · filed 23 December 2025
- exercised options over 15,850 shares of Arthur J. Gallagher & CoSEC Form 423 December 2025Common Stock · traded 19 December 2025 · filed 23 December 2025
- ▼ sold on the open market 15,850 shares of Arthur J. Gallagher & CoSEC Form 423 December 2025Common Stock · traded 19 December 2025 · filed 23 December 2025
- gave away 1,724 shares of Arthur J. Gallagher & CoSEC Form 423 December 2025Common Stock · traded 19 December 2025 · filed 23 December 2025
- exercised options over 79 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 42 April 2025Phantom Stock · traded 31 March 2025 · filed 2 April 2025
- exercised options over 79 shares of Arthur J. Gallagher & CoSEC Form 42 April 2025Common Stock · traded 31 March 2025 · filed 2 April 2025
- had shares withheld for tax on 79 shares of Arthur J. Gallagher & CoSEC Form 42 April 2025Common Stock · traded 31 March 2025 · filed 2 April 2025
- was granted 7,180 shares of Arthur J. Gallagher & CoSEC Form 418 March 2025Common Stock (restricted) · traded 15 March 2025 · filed 18 March 2025
- exercised options over 7,180 shares of Arthur J. Gallagher & CoSEC Form 418 March 2025Common Stock (restricted) · traded 15 March 2025 · filed 18 March 2025
- exercised options over 7,180 shares of Arthur J. Gallagher & CoSEC Form 418 March 2025Common Stock · traded 15 March 2025 · filed 18 March 2025
- had shares withheld for tax on 3,108 shares of Arthur J. Gallagher & CoSEC Form 418 March 2025Common Stock · traded 15 March 2025 · filed 18 March 2025
- exercised options over 2,250 shares of Arthur J. Gallagher & CoSEC Form 414 March 2025Common Stock (restricted) · traded 12 March 2025 · filed 14 March 2025
- exercised options over 2,250 shares of Arthur J. Gallagher & CoSEC Form 414 March 2025Common Stock · traded 12 March 2025 · filed 14 March 2025
- had shares withheld for tax on 945 shares of Arthur J. Gallagher & CoSEC Form 414 March 2025Common Stock · traded 12 March 2025 · filed 14 March 2025
- recorded a discretionary transaction in 1,401 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 411 March 2025Phantom Stock · traded 10 March 2025 · filed 11 March 2025
- was granted 11,350 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 45 March 2025Non-qualified Stock Option · traded 1 March 2025 · filed 5 March 2025
- ▼ sold on the open market 10,000 shares of Arthur J. Gallagher & CoSEC Form 414 February 2025Common Stock · traded 13 February 2025 · filed 14 February 2025
- exercised options over 94,732 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 47 February 2025Phantom Stock · traded 5 February 2025 · filed 7 February 2025
- exercised options over 94,732 shares of Arthur J. Gallagher & CoSEC Form 47 February 2025Common Stock · traded 5 February 2025 · filed 7 February 2025
- had shares withheld for tax on 40,613 shares of Arthur J. Gallagher & CoSEC Form 47 February 2025Common Stock · traded 5 February 2025 · filed 7 February 2025
- recorded a discretionary transaction in 4,942 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 411 December 2024Notional Stock Units · traded 10 December 2024 · filed 11 December 2024
- ▼ sold on the open market 6,335 shares of Arthur J. Gallagher & CoSEC Form 430 July 2024Common Stock · traded 30 July 2024 · filed 30 July 2024
- recorded a discretionary transaction in 9,675 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 418 June 2024Notional Stock Units · traded 17 June 2024 · filed 18 June 2024
- ▼ sold on the open market 8,303 shares of Arthur J. Gallagher & CoSEC Form 418 June 2024Common Stock · traded 18 June 2024 · filed 18 June 2024
- exercised options over 7,283 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 420 May 2024Non-qualified Stock Option · traded 16 May 2024 · filed 20 May 2024
- exercised options over 8,717 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 420 May 2024Non-qualified Stock Option · traded 17 May 2024 · filed 20 May 2024
- exercised options over 800 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 420 May 2024Non-qualified Stock Option · traded 20 May 2024 · filed 20 May 2024
- ▼ sold on the open market 7,576 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 16 May 2024 · filed 20 May 2024
- exercised options over 7,283 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 16 May 2024 · filed 20 May 2024
- ▼ sold on the open market 7,283 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 16 May 2024 · filed 20 May 2024
- exercised options over 8,717 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
- ▼ sold on the open market 3,863 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
- ▼ sold on the open market 4,468 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
- ▼ sold on the open market 386 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
- exercised options over 800 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 20 May 2024 · filed 20 May 2024
- ▼ sold on the open market 800 shares of Arthur J. Gallagher & CoSEC Form 420 May 2024Common Stock · traded 20 May 2024 · filed 20 May 2024
- was granted 8,914 shares of Arthur J. Gallagher & CoSEC Form 419 March 2024Common Stock (restricted) · traded 16 March 2024 · filed 19 March 2024
- exercised options over 8,914 shares of Arthur J. Gallagher & CoSEC Form 419 March 2024Common Stock (restricted) · traded 16 March 2024 · filed 19 March 2024
- exercised options over 8,914 shares of Arthur J. Gallagher & CoSEC Form 419 March 2024Common Stock · traded 16 March 2024 · filed 19 March 2024
- had shares withheld for tax on 3,858 shares of Arthur J. Gallagher & CoSEC Form 419 March 2024Common Stock · traded 16 March 2024 · filed 19 March 2024
- exercised options over 3,500 shares of Arthur J. Gallagher & CoSEC Form 418 March 2024Common Stock (restricted) · traded 14 March 2024 · filed 18 March 2024
- exercised options over 3,500 shares of Arthur J. Gallagher & CoSEC Form 418 March 2024Common Stock · traded 14 March 2024 · filed 18 March 2024
- had shares withheld for tax on 980 shares of Arthur J. Gallagher & CoSEC Form 418 March 2024Common Stock · traded 14 March 2024 · filed 18 March 2024
- was granted 10,884 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 45 March 2024Non-qualified Stock Option · traded 1 March 2024 · filed 5 March 2024
- recorded a discretionary transaction in 1,851 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 45 March 2024Phantom Stock · traded 4 March 2024 · filed 5 March 2024
- exercised options over 21,800 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 419 September 2023Non-qualified Stock Option · traded 15 September 2023 · filed 19 September 2023
- exercised options over 21,800 shares of Arthur J. Gallagher & CoSEC Form 419 September 2023Common Stock · traded 15 September 2023 · filed 19 September 2023
- ▼ sold on the open market 21,800 shares of Arthur J. Gallagher & CoSEC Form 419 September 2023Common Stock · traded 15 September 2023 · filed 19 September 2023
- was granted 9,452 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 417 March 2023Non-qualified Stock Option · traded 15 March 2023 · filed 17 March 2023
- exercised options over 4,000 shares of Arthur J. Gallagher & CoSEC Form 417 March 2023Common Stock (restricted) · traded 15 March 2023 · filed 17 March 2023
- exercised options over 4,000 shares of Arthur J. Gallagher & CoSEC Form 417 March 2023Common Stock · traded 15 March 2023 · filed 17 March 2023
- had shares withheld for tax on 1,773 shares of Arthur J. Gallagher & CoSEC Form 417 March 2023Common Stock · traded 15 March 2023 · filed 17 March 2023
- recorded a discretionary transaction in 3,630 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 414 March 2023Phantom Stock · traded 10 March 2023 · filed 14 March 2023
- was granted 9,800 shares of Arthur J. Gallagher & CoSEC Form 414 March 2023Common Stock (restricted) · traded 12 March 2023 · filed 14 March 2023
- exercised options over 9,800 shares of Arthur J. Gallagher & CoSEC Form 414 March 2023Common Stock (restricted) · traded 12 March 2023 · filed 14 March 2023
- exercised options over 9,800 shares of Arthur J. Gallagher & CoSEC Form 414 March 2023Common Stock · traded 12 March 2023 · filed 14 March 2023
- had shares withheld for tax on 3,530 shares of Arthur J. Gallagher & CoSEC Form 414 March 2023Common Stock · traded 12 March 2023 · filed 14 March 2023
- gave away 2,023 shares of Arthur J. Gallagher & CoSEC Form 410 February 2023Common Stock · traded 29 December 2022 · filed 10 February 2023
- exercised options over 5,100 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 411 August 2022Non-qualified Stock Option · traded 9 August 2022 · filed 11 August 2022
- exercised options over 5,100 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 411 August 2022Non-qualified Stock Option · traded 10 August 2022 · filed 11 August 2022
- exercised options over 5,100 shares of Arthur J. Gallagher & CoSEC Form 411 August 2022Common Stock · traded 9 August 2022 · filed 11 August 2022
- ▼ sold on the open market 5,100 shares of Arthur J. Gallagher & CoSEC Form 411 August 2022Common Stock · traded 9 August 2022 · filed 11 August 2022
- exercised options over 5,100 shares of Arthur J. Gallagher & CoSEC Form 411 August 2022Common Stock · traded 10 August 2022 · filed 11 August 2022
- ▼ sold on the open market 5,100 shares of Arthur J. Gallagher & CoSEC Form 411 August 2022Common Stock · traded 10 August 2022 · filed 11 August 2022
- was granted 11,405 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 416 March 2022Non-qualified Stock Option · traded 15 March 2022 · filed 16 March 2022
- exercised options over 7,500 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 416 March 2022Non-qualified Stock Option · traded 16 March 2022 · filed 16 March 2022
- recorded a discretionary transaction in 2,843 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 416 March 2022Phantom Stock · traded 16 March 2022 · filed 16 March 2022
- was granted 8,450 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock (restricted) · traded 14 March 2022 · filed 16 March 2022
- exercised options over 8,450 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock (restricted) · traded 14 March 2022 · filed 16 March 2022
- exercised options over 8,450 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 14 March 2022 · filed 16 March 2022
- had shares withheld for tax on 2,819 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 14 March 2022 · filed 16 March 2022
- exercised options over 7,500 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 16 March 2022 · filed 16 March 2022
- ▼ sold on the open market 7,500 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 16 March 2022 · filed 16 March 2022
- exercised options over 4,550 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock (restricted) · traded 16 March 2022 · filed 16 March 2022
- exercised options over 4,550 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 16 March 2022 · filed 16 March 2022
- had shares withheld for tax on 2,015 shares of Arthur J. Gallagher & CoSEC Form 416 March 2022Common Stock · traded 16 March 2022 · filed 16 March 2022
- was granted 526 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 425 February 2022Notional Stock Units · traded 23 February 2022 · filed 25 February 2022
- recorded a discretionary transaction in 2,316 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 42 February 2022Notional Stock Units · traded 31 January 2022 · filed 2 February 2022
- recorded a discretionary transaction in 1,874 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 417 December 2021Notional Stock Units · traded 15 December 2021 · filed 17 December 2021
- recorded a discretionary transaction in 1,139 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 417 December 2021Notional Stock Units · traded 17 December 2021 · filed 17 December 2021
- was granted 24,500 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 418 March 2021Non-qualified Stock Option · traded 16 March 2021 · filed 18 March 2021
- recorded a discretionary transaction in 3,532 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 418 March 2021Phantom Stock · traded 17 March 2021 · filed 18 March 2021
- exercised options over 5,350 shares of Arthur J. Gallagher & CoSEC Form 418 March 2021Common Stock (restricted) · traded 17 March 2021 · filed 18 March 2021
- exercised options over 5,350 shares of Arthur J. Gallagher & CoSEC Form 418 March 2021Common Stock · traded 17 March 2021 · filed 18 March 2021
- had shares withheld for tax on 2,245 shares of Arthur J. Gallagher & CoSEC Form 418 March 2021Common Stock · traded 17 March 2021 · filed 18 March 2021
- was granted 9,700 shares of Arthur J. Gallagher & CoSEC Form 417 March 2021Common Stock (restricted) · traded 15 March 2021 · filed 17 March 2021
- exercised options over 9,700 shares of Arthur J. Gallagher & CoSEC Form 417 March 2021Common Stock (restricted) · traded 15 March 2021 · filed 17 March 2021
- exercised options over 9,700 shares of Arthur J. Gallagher & CoSEC Form 417 March 2021Common Stock · traded 15 March 2021 · filed 17 March 2021
- had shares withheld for tax on 3,178 shares of Arthur J. Gallagher & CoSEC Form 417 March 2021Common Stock · traded 15 March 2021 · filed 17 March 2021
- recorded a discretionary transaction in 2,158 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 412 February 2021Notional Stock Units · traded 11 February 2021 · filed 12 February 2021
- was granted 722 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 410 February 2021Notional Stock Units · traded 8 February 2021 · filed 10 February 2021
- exercised options over 12,600 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 411 December 2020Non-qualified Stock Option · traded 10 December 2020 · filed 11 December 2020
- exercised options over 12,600 shares of Arthur J. Gallagher & CoSEC Form 411 December 2020Common Stock · traded 10 December 2020 · filed 11 December 2020
- ▼ sold on the open market 12,600 shares of Arthur J. Gallagher & CoSEC Form 411 December 2020Common Stock · traded 10 December 2020 · filed 11 December 2020
- recorded a discretionary transaction in 4,636 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 417 March 2020Phantom Stock · traded 13 March 2020 · filed 17 March 2020
- was granted 9,374 shares of Arthur J. Gallagher & CoSEC Form 417 March 2020Common Stock (restricted) · traded 16 March 2020 · filed 17 March 2020
- exercised options over 9,374 shares of Arthur J. Gallagher & CoSEC Form 417 March 2020Common Stock (restricted) · traded 16 March 2020 · filed 17 March 2020
- exercised options over 9,374 shares of Arthur J. Gallagher & CoSEC Form 417 March 2020Common Stock · traded 16 March 2020 · filed 17 March 2020
- had shares withheld for tax on 3,966 shares of Arthur J. Gallagher & CoSEC Form 417 March 2020Common Stock · traded 16 March 2020 · filed 17 March 2020
- was granted 2,250 shares of Arthur J. Gallagher & CoSEC Form 416 March 2020Common Stock (restricted) · traded 12 March 2020 · filed 16 March 2020
- was granted 17,630 shares of Arthur J. Gallagher & Co (a derivative holding)SEC Form 416 March 2020Non-qualified Stock Option · traded 12 March 2020 · filed 16 March 2020
- exercised options over 3,050 shares of Arthur J. Gallagher & CoSEC Form 413 March 2020Common Stock (restricted) · traded 11 March 2020 · filed 13 March 2020
- exercised options over 3,050 shares of Arthur J. Gallagher & CoSEC Form 413 March 2020Common Stock · traded 11 March 2020 · filed 13 March 2020
- had shares withheld for tax on 1,280 shares of Arthur J. Gallagher & CoSEC Form 413 March 2020Common Stock · traded 11 March 2020 · filed 13 March 2020
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.