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A

AJG

NYSE

Arthur J. Gallagher & Co.

Latest disclosureSeptember 17, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 5 sales

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Insider transactions 59

Limited filing history
All59Buying0Selling5Other54
Filters

Last 30 daysNo qualifying insider buying. Sales: $252.86K by 1 insider.

54 of 59 trades · March 31, 2026 – September 15, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 20 trades on this page.

Gift disclosed

Patrick Murphy Gallagher

Chief Operating Officer

Common Stock

Value context
Not a purchase
Reported price
Gift · no purchase price
Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Traded September 8, 2026Filed September 10, 2026SEC filing
Gift disclosed

J. Patrick Gallagher Jr

CEO

Common Stock

Value context
Not a purchase
Reported price
Gift · no purchase price
Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Traded September 8, 2026Filed September 10, 2026SEC filing
Exercise or conversion

Scott R. Hudson

Vice President

Common Stock

Value context
$1.03M
Reported price
$86.17 / share
Traded September 2, 2026Filed September 4, 2026SEC filing
Exercise or conversion

Scott R. Hudson

Vice President

Non-qualified Stock Option

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$86.17 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 2, 2026Filed September 4, 2026SEC filing
Award disclosed

Christopher C. Miskel

Director

Common Stock

Value context
$40K
Reported price
$262.00 / share
Traded September 1, 2026Filed September 2, 2026SEC filing
Exercise or conversion

Christopher E. Mead

VICE PRESIDENT

Common Stock

Value context
$301.6K
Reported price
$86.17 / share
Traded August 19, 2026Filed August 20, 2026SEC filing
Exercise or conversion

Christopher E. Mead

VICE PRESIDENT

Non-qualified Stock Option

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$86.17 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 19, 2026Filed August 20, 2026SEC filing
Exercise or conversion

Mark H. Bloom

Vice President

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded August 16, 2026Filed August 18, 2026SEC filing
Tax or exercise withholding

Mark H. Bloom

Vice President

Common Stock

Value context
$152.44K
Reported price
$251.21 / share
Traded August 16, 2026Filed August 18, 2026SEC filing
Exercise or conversion

Mark H. Bloom

Vice President

Phantom Stock

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 16, 2026Filed August 18, 2026SEC filing
Gift disclosed

Patrick Murphy Gallagher

Chief Operating Officer

Common Stock

Value context
Not a purchase
Reported price
Gift · no purchase price
Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

Vishal Jain

VICE PRESIDENT

Common Stock

Value context
$496.49K
Reported price
$229.57 / share
Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Vishal Jain

VICE PRESIDENT

Notional Stock Units

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$0.00 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Thomas Joseph Gallagher

President

Common Stock

Value context
$80.8K
Reported price
$229.57 / share
Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Thomas Joseph Gallagher

President

Notional Stock Units

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$0.00 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Michael Robert Pesch

Vice President

Common Stock

Value context
$81.68K
Reported price
$229.57 / share
Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Michael Robert Pesch

Vice President

Notional Stock Units

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$0.00 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded July 1, 2026Filed July 6, 2026SEC filing
Other activity disclosed

Douglas K. Howell

VP & Chief Financial Officer

Notional Stock Units

Derivative security · not the ordinary share price.

Value context
$2.71M
Reported price
$209.08 / derivative unit
Traded June 22, 2026Filed June 24, 2026SEC filing
Award disclosed

David S. Johnson

Director

Common Stock

Value context
$48.75K
Reported price
$206.10 / share
Traded June 1, 2026Filed June 2, 2026SEC filing
Award disclosed

Christopher C. Miskel

Director

Common Stock

Value context
$40K
Reported price
$206.10 / share
Traded June 1, 2026Filed June 2, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
Chief Operating OfficerCommon StockGift49,988Gift · no purchase priceNot a purchaseSep 8Filed Sep 10 · 2d laterSEC filing
CEOCommon StockGift49,988Gift · no purchase priceNot a purchaseSep 8Filed Sep 10 · 2d laterSEC filing
Vice PresidentCommon StockOption exercise or conversion12,000$86.17 / share$1.03MSep 2Filed Sep 4 · 2d laterSEC filing
Vice PresidentNon-qualified Stock OptionOption exercise or conversionDerivative units12,000$86.17 exercise / conversion priceNot a separate purchaseSep 2Filed Sep 4 · 2d laterSEC filing
DirectorCommon StockGrant or award153$262.00 / share$40KSep 1Filed Sep 2 · 1d laterSEC filing
VICE PRESIDENTCommon StockOption exercise or conversion3,500$86.17 / share$301.6KAug 19Filed Aug 20 · 1d laterSEC filing
VICE PRESIDENTNon-qualified Stock OptionOption exercise or conversionDerivative units3,500$86.17 exercise / conversion priceNot a separate purchaseAug 19Filed Aug 20 · 1d laterSEC filing
Vice PresidentCommon StockOption exercise or conversion1,280$0 reported · see filingNot establishedAug 16Filed Aug 18 · 2d laterSEC filing
Vice PresidentCommon StockExercise-price or tax withholding607$251.21 / share$152.44KAug 16Filed Aug 18 · 2d laterSEC filing
Vice PresidentPhantom StockOption exercise or conversionDerivative units1,280Exercise / conversion price not reportedNot a separate purchaseAug 16Filed Aug 18 · 2d laterSEC filing
Chief Operating OfficerCommon StockGift23,800Gift · no purchase priceNot a purchaseAug 5Filed Aug 7 · 2d laterSEC filing
VICE PRESIDENTCommon StockOption exercise or conversion2,163$229.57 / share$496.49KJul 1Filed Jul 6 · 5d laterSEC filing
VICE PRESIDENTNotional Stock UnitsOption exercise or conversionDerivative units2,163$0.00 exercise / conversion priceNot a separate purchaseJul 1Filed Jul 6 · 5d laterSEC filing
PresidentCommon StockOption exercise or conversion352$229.57 / share$80.8KJul 1Filed Jul 6 · 5d laterSEC filing
PresidentNotional Stock UnitsOption exercise or conversionDerivative units352$0.00 exercise / conversion priceNot a separate purchaseJul 1Filed Jul 6 · 5d laterSEC filing
Vice PresidentCommon StockOption exercise or conversion356$229.57 / share$81.68KJul 1Filed Jul 6 · 5d laterSEC filing
Vice PresidentNotional Stock UnitsOption exercise or conversionDerivative units356$0.00 exercise / conversion priceNot a separate purchaseJul 1Filed Jul 6 · 5d laterSEC filing
VP & Chief Financial OfficerNotional Stock UnitsDiscretionary transactionDerivative units12,954$209.08 / derivative unit$2.71MJun 22Filed Jun 24 · 2d laterSEC filing
DirectorCommon StockGrant or award237$206.10 / share$48.75KJun 1Filed Jun 2 · 1d laterSEC filing
DirectorCommon StockGrant or award194$206.10 / share$40KJun 1Filed Jun 2 · 1d laterSEC filing

Showing the latest 20 of 54 trades. Show all 54 trades

Congress transactions 11

All Congress filings
Purchase disclosed

Arthur J. Gallagher & Co. Common Stock · Stock

The filing reports a purchase for the member.

AAAlan ArmstrongReporting Senate member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 27, 2026
Filed July 21, 2026 · 116d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for the member.

Kelly Louise Morrison official portraitKelly Louise MorrisonReporting House member
Reported amount
$15,001 – $50,000Reported range; exact amount not disclosed.
Trade date
March 8, 2026
Filed March 10, 2026 · 2d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for the member.

Kelly Louise Morrison official portraitKelly Louise MorrisonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 8, 2026
Filed March 10, 2026 · 2d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for the member.

Kelly Louise Morrison official portraitKelly Louise MorrisonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 8, 2026
Filed March 10, 2026 · 2d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
February 10, 2026
Filed March 9, 2026 · 27d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for a joint account.

Julie Johnson official portraitJulie JohnsonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
December 18, 2025
Filed January 15, 2026 · 28d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for the member.

Julia Letlow official portraitJulia LetlowReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
July 29, 2025
Filed January 13, 2026 · 168d laterOriginal report
Purchase disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a purchase for the member.

Julia Letlow official portraitJulia LetlowReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
October 23, 2024
Filed January 13, 2026 · 447d laterOriginal report
Purchase disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
December 19, 2025
Filed January 12, 2026 · 24d laterOriginal report
Partial sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a partial sale for a joint account.

Julie Johnson official portraitJulie JohnsonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
November 13, 2025
Filed December 11, 2025 · 28d laterOriginal report
Sale disclosed

Arthur J. Gallagher & Co. Common Stock (AJG) · Stock

The filing reports a sale for a spouse.

Valerie Hoyle official portraitValerie HoyleReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
September 23, 2025
Filed October 10, 2025 · 17d laterOriginal report
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Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0000354190
Latest public acceptance
Sep 17, 2026, 08:46 PM UTC
Score calculated
Oct 8, 2026, 12:03 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.