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Arthur J. Gallagher & Co. planned insider sales

In the last twelve months insiders at Arthur J. Gallagher & Co. filed 22 Form 144 notices of planned sales, 225,946 shares worth $57.3 million at the time of filing, from 10 sellers. The latest, filed 4 November 2026: Cary Richard C (former officer), 5,000 shares worth $1.4 million, planned for around 4 November 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
4 November 2026Cary Richard CFormer Officer5,000$1.4 million4 November 2026None on Form 4 yetFidelity Brokerage Services LLCRestricted Stock VestingForm 144
4 November 2026Ziebell William FOfficer23,510$6.7 million4 November 202623,510 shares from 4 November 2026Fidelity Brokerage Services LLCStock Option ExerciseForm 144
2 November 2026Douglas K. HowellOfficer3,000$836,6702 November 2026None on Form 4 yetGoldman Sachs & Co. LLCRestricted Stock UnitsForm 144
2 November 2026Mead Christopher EOfficer7,590$2.1 million2 November 20267,590 shares from 2 November 2026Fidelity Brokerage Services LLCStock Option ExerciseForm 144
2 November 2026Howell Douglas KOfficer27,996$7.7 million2 November 202630,996 shares from 2 November 2026Fidelity Brokerage Services LLCESPP Purchase; Restricted Stock Vesting; Stock Option ExerciseForm 144
15 September 2026Cary Richard COfficer1,000$252,85815 September 20261,000 shares from 15 September 2026Fidelity Brokerage Services LLCCompensationForm 144
15 September 2026Matrix Trust CoTrustee for Arthur J Gallagher Rabbi Trust15,000$3.8 million15 September 2026None on Form 4 yetPershing LLCOpen Market PurchaseForm 144
2 September 2026Hudson Scott ROfficer12,000$3.2 million2 September 202612,000 shares from 2 September 2026Fidelity Brokerage Services LLCStock Option ExerciseForm 144
24 August 2026Walter D. BayOfficer12,000$3.3 million24 August 202612,000 shares from 24 August 2026Goldman Sachs & Co. LLCRestricted Stock AwardsForm 144
19 August 2026Mead Christopher EOfficer3,500$899,58819 August 20263,500 shares from 19 August 2026Fidelity Brokerage Services LLCStock Option ExerciseForm 144
16 June 2026Matrix Trust CoTrustee for Arthur J Gallagher Rabbi Trust15,000$3.2 million16 June 2026No matching Form 4 salePershing LLCOpen Market PurchaseForm 144
2 June 2026Cary Richard COfficer3,000$618,0002 June 20263,000 shares from 2 June 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
18 March 2026Matrix Trust CoTrustee for Arthur J Gallagher Rabbi Trust15,000$3.1 million18 March 2026No matching Form 4 salePershing LLCOpen Market PurchaseForm 144
6 March 2026Hudson Scott ROfficer3,800$864,7666 March 20263,800 shares from 6 March 2026Fidelity Brokerage Services LLCOption Granted - 03/14/2019Form 144
5 March 2026Mead Christopher EOfficer4,000$908,4725 March 20264,000 shares from 5 March 2026Fidelity Brokerage Services LLCOptions Granted 03/14/2019Form 144
2 March 2026Gallagher J Patrick JrOfficer, Director27,450$6.3 million2 March 202627,450 shares from 2 March 2026Fidelity Brokerage Services LLCOption Granted - 03/14/2019Form 144
23 December 2025Mead Christopher EOfficer4,000$1.0 million23 December 20254,000 shares from 23 December 2025Fidelity Brokerage Services LLCOption Granted 03/14/2019Form 144
22 December 2025Douglas K. HowellOfficer5,000$1.3 million22 December 20255,000 shares from 22 December 2025Goldman Sachs & Co. LLCRestricted Stock UnitsForm 144
19 December 2025Bay Walter D.Officer15,850$4.0 million19 December 202515,850 shares from 19 December 2025Fidelity Brokerage Services LLCOption Granted 03/14/2019Form 144
17 December 2025Matrix Trust CoTrustee for the trust relating to the Plan15,000$3.8 million17 December 2025No matching Form 4 salePershingOpen market purchaseForm 144
21 November 2025Mead Christopher EOfficer1,250$313,42621 November 20251,250 shares from 21 November 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
18 November 2025Cary Richard COfficer6,000$1.6 million18 November 20256,000 shares from 18 November 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?