SEC Insider Transactions from GALLAGHER THOMAS JOSEPH.

Last updated: 2026-04-02 23:05 UTC | Total transactions: 71

GALLAGHER THOMAS JOSEPH has filed 71 insider transactions across 1 company since December 2022.

Most recent transaction: a option exercise of 76 shares of Arthur J. Gallagher & Co. ($AJG) on March 31, 2026.

Activity breakdown: 0 open-market purchases and 2 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 31, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 76 $215.95 634,653.6020 257,100,000 0.01% 0.00%
March 31, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Phantom Stock 76 $0.00 20,214.4600 257,100,000 0.38% 0.00%
March 31, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 76 $215.95 634,577.2200 257,100,000 0.01% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 528 $0.00 634,577.2200 257,100,000 0.08% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 264 $0.00 634,753.2200 257,100,000 0.04% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 176 $0.00 634,577.2200 257,100,000 0.03% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 264 $0.00 634,577.2200 257,100,000 0.04% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 264 $0.00 635,105.2200 257,100,000 0.04% 0.00%
March 23, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 264 $0.00 634,313.2200 257,100,000 0.04% 0.00%
March 15, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 9560 $0.00 639,349.2200 257,100,000 1.52% 0.00%
March 15, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 4068 $207.93 635,281.2200 257,100,000 0.64% 0.00%
March 15, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock (restricted) 9560 $0.00 0.0000 257,100,000 100.00% 0.00%
March 15, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President A Common Stock (restricted) 9560 $0.00 9,560.0000 257,100,000 9999.99% 0.00%
March 4, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President A Phantom Stock 2643 $227.01 20,232.1850 257,100,000 15.03% 0.00%
March 1, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President A Non-qualified Stock Option 22219 $228.20 144,454.0000 257,100,000 18.18% 0.01%
Feb. 26, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Non-qualified Stock Option 28200 $0.00 122,235.0000 257,100,000 18.75% 0.01%
Feb. 26, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 17555 $221.70 601,516.7800 257,100,000 2.84% 0.01%
Feb. 26, 2026 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 28200 $75.59 629,716.7800 257,100,000 4.69% 0.01%
Aug. 21, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 30000 $0.00 619,071.7800 254,700,000 5.09% 0.01%
Aug. 20, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 375 $0.00 619,071.7800 254,700,000 0.06% 0.00%
Aug. 20, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 875 $0.00 619,071.7800 254,700,000 0.14% 0.00%
Aug. 21, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 30000 $0.00 619,071.7800 254,700,000 4.62% 0.01%
July 31, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Notional Stock Units 1376 $0.00 10,233.3409 254,700,000 11.85% 0.00%
July 31, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 1376 $0.00 619,571.7800 254,700,000 0.22% 0.00%
May 16, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 3000 $0.00 618,195.7450 254,700,000 0.48% 0.00%
March 31, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 105 $345.24 621,195.7450 254,700,000 0.02% 0.00%
March 31, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 105 $0.00 621,300.7520 254,700,000 0.02% 0.00%
March 31, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Phantom Stock 105 $0.00 17,470.7050 254,700,000 0.60% 0.00%
March 15, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President A Common Stock (restricted) 9640 $0.00 9,640.0000 254,700,000 9999.99% 0.00%
March 15, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock (restricted) 9640 $0.00 0.0000 254,700,000 100.00% 0.00%
March 15, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 9640 $0.00 624,957.5970 254,700,000 1.57% 0.00%
March 15, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 4173 $325.24 620,784.5970 254,700,000 0.67% 0.00%
March 10, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President I Phantom Stock 1868 $321.23 17,545.1240 254,700,000 11.91% 0.00%
March 1, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President A Non-qualified Stock Option 14876 $0.00 14,876.0000 254,700,000 9999.99% 0.01%
Feb. 5, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 14800 $70.74 623,298.5970 254,700,000 2.43% 0.01%
Feb. 5, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Non-qualified Stock Option 14800 $0.00 0.0000 254,700,000 100.00% 0.01%
Feb. 5, 2025 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President F Common Stock 7981 $314.93 615,317.5970 254,700,000 1.28% 0.00%
Dec. 19, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President G Common Stock 840 $0.00 608,498.6300 0 0.14% 0.00%
Aug. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Non-qualified Stock Option 15000 $0.00 14,800.0000 0 50.34% 0.00%
Aug. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President S Common Stock 15000 $282.96 609,338.6300 0 2.40% 0.00%
Aug. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH President M Common Stock 15000 $70.74 624,338.6300 0 2.46% 0.00%
April 29, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 199 $0.00 609,338.6300 0 0.03% 0.00%
April 29, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Phantom Stock 199 $0.00 15,541.8010 0 1.27% 0.00%
April 29, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 199 $232.91 609,139.3620 0 0.03% 0.00%
March 16, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 11970 $0.00 614,518.6300 0 1.99% 0.00%
March 16, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 5180 $253.17 609,338.6300 0 0.84% 0.00%
March 16, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock (restricted) 11970 $0.00 0.0000 0 100.00% 0.00%
March 16, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT A Common Stock (restricted) 11970 $0.00 11,970.0000 0 9999.99% 0.00%
March 1, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT A Non-qualified Stock Option 15070 $0.00 15,070.0000 0 9999.99% 0.00%
March 4, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT I Phantom Stock 2468 $243.13 15,709.8210 0 18.64% 0.00%
Feb. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 13844 $237.69 614,670.5000 0 2.20% 0.00%
Feb. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT S Common Stock 12309 $237.65 602,361.5000 0 2.00% 0.00%
Feb. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 37300 $56.86 628,514.5000 0 6.31% 0.00%
Dec. 6, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT G Common Stock 480 $0.00 602,361.5000 0 0.08% 0.00%
Feb. 8, 2024 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Non-qualified Stock Option 37300 $0.00 0.0000 0 100.00% 0.00%
Dec. 6, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT G Common Stock 720 $0.00 590,734.5000 0 0.12% 0.00%
July 14, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 2570 $0.00 591,455.5150 0 0.44% 0.00%
July 14, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Notional Stock Units 2570 $0.00 9,663.1650 0 21.01% 0.00%
May 4, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 147 $211.72 588,885.4700 0 0.02% 0.00%
May 4, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Phantom Stock 147 $0.00 13,144.9440 0 1.11% 0.00%
May 4, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 147 $0.00 589,032.5290 0 0.02% 0.00%
March 15, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT A Non-qualified Stock Option 12744 $0.00 12,744.0000 0 9999.99% 0.00%
March 12, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT A Common Stock (restricted) 15660 $0.00 15,660.0000 0 9999.99% 0.00%
March 10, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT I Phantom Stock 4840 $185.95 13,266.4440 0 57.44% 0.00%
March 12, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 6771 $182.76 588,806.6300 0 1.14% 0.00%
March 12, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 15660 $0.00 595,577.6300 0 2.70% 0.00%
March 12, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock (restricted) 15660 $0.00 0.0000 0 100.00% 0.00%
March 3, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Non-qualified Stock Option 25400 $0.00 0.0000 0 100.00% 0.00%
March 3, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT F Common Stock 13845 $188.47 579,917.6300 0 2.33% 0.00%
March 3, 2023 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT M Common Stock 25400 $43.71 593,762.6300 0 4.47% 0.00%
Dec. 23, 2022 Arthur J. Gallagher & Co. $AJG GALLAGHER THOMAS JOSEPH VICE PRESIDENT G Common Stock 1200 $0.00 568,362.6300 0 0.21% 0.00%