AJGNYSE · Insurance Agents, Brokers & Service

Arthur J. Gallagher & Co.

Alert me on AJG

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 18 Sale CARY RICHARD C Insider

1 week

−3.5%S&P +1.3%

1 month

+5.6%S&P +0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Sep 5 Sale Hudson Scott R Insider

1 week

−1.4%S&P −1.1%

1 month

−9.7%S&P +1.7%

3 months

Result in30 trading days

6 months

Result in93 trading days

Aug 27 Sale Bay Walter D. Insider

1 week

+2.5%S&P +0.3%

1 month

−11.6%S&P −0.5%

3 months

Result in23 trading days

6 months

Result in86 trading days

Aug 21 Sale Mead Christopher E Insider

1 week

+1.4%S&P +0.5%

1 month

−12.4%S&P +1.3%

3 months

Result in19 trading days

6 months

Result in82 trading days

Jul 21 Buy Sen. Alan Armstrong Senate

1 week

+10.9%S&P −2.4%

1 month

+7.1%S&P +2.0%

3 months

+7.2%S&P +3.2%

6 months

Result in60 trading days

Show all 30

Jun 3 Sale CARY RICHARD C Insider

1 week

+9.1%S&P −3.8%

1 month

+23.7%S&P −0.1%

3 months

+31.0%S&P +1.7%

6 months

Result in27 trading days

Mar 10 Sale Rep. Kelly Louise Morrison House

1 week

−0.2%S&P −2.2%

1 month

+1.8%S&P +0.7%

3 months

+5.2%S&P +7.6%

6 months

+16.6%S&P +12.6%

Mar 10 Sale Hudson Scott R Insider

1 week

−1.2%S&P −0.9%

1 month

+3.2%S&P +0.7%

3 months

+2.8%S&P +9.1%

6 months

+16.1%S&P +13.2%

Mar 10 Sale Mead Christopher E Insider

1 week

−1.2%S&P −0.9%

1 month

+3.2%S&P +0.7%

3 months

+2.8%S&P +9.1%

6 months

+16.1%S&P +13.2%

Mar 9 Sale Rep. Gilbert Cisneros House

1 week

−1.2%S&P −0.9%

1 month

+3.2%S&P +0.7%

3 months

+2.8%S&P +9.1%

6 months

+16.1%S&P +13.2%

Mar 5 Sale GALLAGHER J PATRICK JR Insider

1 week

−10.8%S&P −2.2%

1 month

−4.2%S&P −3.0%

3 months

−7.8%S&P +11.4%

6 months

+16.8%S&P +14.1%

Jan 15 Sale Rep. Julie Johnson House

1 week

−1.2%S&P +0.2%

1 month

−17.0%S&P −0.8%

3 months

−13.4%S&P +2.8%

6 months

−3.4%S&P +8.8%

Jan 13 Buy Rep. Julia Letlow House

1 week

−2.6%S&P −0.2%

1 month

−18.9%S&P −1.2%

3 months

−12.5%S&P +1.9%

6 months

−0.6%S&P +8.2%

Jan 13 Sale Rep. Julia Letlow House

1 week

−2.6%S&P −0.2%

1 month

−18.9%S&P −1.2%

3 months

−12.5%S&P +1.9%

6 months

−0.6%S&P +8.2%

Jan 12 Buy Rep. Gilbert Cisneros House

1 week

−2.7%S&P −1.2%

1 month

−20.3%S&P −1.8%

3 months

−12.9%S&P +1.2%

6 months

+0.2%S&P +8.8%

Dec 30, 2025 Sale Mead Christopher E Insider

1 week

−1.1%S&P +0.4%

1 month

−4.8%S&P +0.7%

3 months

−17.1%S&P −4.4%

6 months

−3.0%S&P +9.0%

Dec 30, 2025 Sale HOWELL DOUGLAS K Insider

1 week

−1.1%S&P +0.4%

1 month

−4.8%S&P +0.7%

3 months

−17.1%S&P −4.4%

6 months

−3.0%S&P +9.0%

Dec 24, 2025 Sale Bay Walter D. Insider

1 week

−1.8%S&P −1.0%

1 month

−7.1%S&P +0.7%

3 months

−20.3%S&P −7.9%

6 months

−12.4%S&P +7.9%

Dec 11, 2025 Sale Rep. Julie Johnson House

1 week

−0.8%S&P +0.1%

1 month

+0.6%S&P +1.6%

3 months

−17.8%S&P −1.3%

6 months

−14.9%S&P +10.7%

Nov 26, 2025 Sale Mead Christopher E Insider

1 week

−1.3%S&P +0.7%

1 month

+6.2%S&P +1.5%

3 months

−7.5%S&P +1.3%

6 months

−16.6%S&P +12.2%

Nov 21, 2025 Sale CARY RICHARD C Insider

1 week

−2.1%S&P +3.2%

1 month

+3.2%S&P +4.7%

3 months

−13.0%S&P +5.5%

6 months

−18.8%S&P +14.5%

Nov 4, 2025 Buy Pesch Michael Robert Insider

1 week

+1.3%S&P +1.1%

1 month

−2.5%S&P +1.4%

3 months

−3.3%S&P +0.6%

6 months

−19.3%S&P +9.0%

Oct 10, 2025 Sale Rep. Valerie Hoyle House

1 week

−6.3%S&P +1.2%

1 month

−14.4%S&P +3.0%

3 months

−13.5%S&P +4.9%

6 months

−24.7%S&P +6.2%

Sep 24, 2025 Sale HOWELL DOUGLAS K Insider

1 week

+0.4%S&P +1.1%

1 month

−7.2%S&P +1.6%

3 months

−14.8%S&P +4.4%

6 months

−30.6%S&P −1.9%

Sep 12, 2025 Buy Rep. Valerie Hoyle House

1 week

+3.7%S&P +1.2%

1 month

+5.0%S&P +0.5%

3 months

−11.5%S&P +3.4%

6 months

−27.3%S&P +2.1%

Sep 12, 2025 Sale HOWELL DOUGLAS K Insider

1 week

+0.8%S&P +1.2%

1 month

+0.2%S&P +1.1%

3 months

−16.5%S&P +5.1%

6 months

−28.3%S&P +2.3%

Sep 11, 2025 Sale Rep. Julie Johnson House

1 week

+0.8%S&P +1.2%

1 month

+0.2%S&P +1.1%

3 months

−16.5%S&P +5.1%

6 months

−28.3%S&P +2.3%

Sep 10, 2025 Sale Hudson Scott R Insider

1 week

−0.2%S&P +1.1%

1 month

+3.1%S&P +3.2%

3 months

−17.9%S&P +5.0%

6 months

−29.9%S&P +2.7%

Aug 13, 2025 Buy Rep. Lisa McClain House

1 week

+4.1%S&P −1.5%

1 month

−1.2%S&P +2.5%

3 months

−12.6%S&P +6.3%

6 months

−28.6%S&P +6.3%

Aug 13, 2025 Sale Rep. Lisa McClain House

1 week

+4.1%S&P −1.5%

1 month

−1.2%S&P +2.5%

3 months

−12.6%S&P +6.3%

6 months

−28.6%S&P +6.3%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for AJG

135 held · newest 5135 held · newest 2

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See all 135 filings for AJG

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 30, 2026 Schedule 13G, amended

Capital World Investors: 5%, 12,769,747 shares

Jun 30, 2026 Schedule 13G, amended

FMR LLC: 7.2%, 18,602,786 shares

Jun 30, 2026 Schedule 13G, amended

JPMORGAN CHASE & CO.: 5.5%, 14,160,776 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 7.5%, 19,243,850 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G

Capital World Investors: 5%, 12,951,790 shares

Sep 30, 2025 Schedule 13G, amended

JPMORGAN CHASE & CO.: 7.8%, 20,155,017 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$40KQ4 2025

$40KQ1 2026

$40KQ2 2026

$40KQ3 2026

Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 20, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.