Transaction · 0000354190-26-000199

Bay Walter D.

Bay Walter D., GC, reported an open-market or private sale at Arthur J. Gallagher Co. involving 12000.000000 shares for an estimated $3240972.00. Reported holdings after the transaction were 71292.092000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SGC
AJGArthur J. Gallagher Co.
Trade date
Aug 24, 2026
Filing date
Aug 26, 2026
View on SEC Insider profile
Estimated value-$3.24MShares × reported price
Shares traded12.0k$270.08 per share
Holdings after71.2kDirect
% of reported position traded14.41%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 83,292.092 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

AJG price since this filing

Daily closing prices, with the filing date and available return windows
AJG · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -6.5%1w ago -6.4%1d ago -0.5%
Returns since7d -0.2%30d -12.8%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0000354190-26-000199
Common Stock
Transaction date
Aug 24, 2026
Filed Aug 26, 2026, 11:34 PM · 2d delay
Shares
12,000 sh
$270.08 per share
Estimated value
-$3.24M
Computed from shares × price
Holdings after
71,292.092 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Large Sale
Filing-only score

+10 points

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

General Counsel

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The price reported is an average weighted price. The shares were sold in multiple transactions on 8/24/2026 at prices ranging from $270.01 to $270.17. The reporting person will provide to the Securiti…

  2. F2

    One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

  3. F3F5F6(3 footnotes)

    One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

  4. F4

    Closing price of Gallagher common stock on February 28, 2025.

  5. F7

    Each notional stock unit represents a right to receive one share of Gallagher common stock.

  6. F8

    The notional stock units become payable in July 2026 and following the reporting person's separation from service with Gallagher.

  7. F9

    Each share of phantom stock represents a right to receive one share of Gallagher common stock.

  8. F10

    These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting…

Original filing · 0000354190-26-000199
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