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Arthur J. Gallagher AJG

US equityMarket cap rank #278Insurance Brokers
$227.77
−$1.87 (-0.81%)
Market open · Sep 24, 1:10 pm ET
After hours $229.64 0.00%
Open$231.85
Prev close$229.64
Day range$226.84 – $233.19
Volume590.8K
Market cap$58.38B
P/E (TTM)37.8
Dividend yield1.19%

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership94.4%-0.11 pts vs. prior quarter
Institutions holding1,468-8 vs. prior quarter
Insider trades (recent)21 buys / 13 sellsNet buying
Short interest2.61% of floatDays to cover 5.1 · as of 31 Aug 2026
Short-sale volume share29.7%5-day average of daily volume

Short-sale volume as % of daily volume

18%25%31%38%Aug '26Sep '26Sep '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$16.28M (7 inflow days, 13 outflow days).

Largest holders

  • BlackRock7.73%
  • Vanguard Capital Management, LLC7.11%
  • Capital Research6.82%
  • FMR6.55%
  • Vanguard Portfolio Management, LLC4.86%

By investor type

  • Mutual Fund81.11%
  • Public Company3.54%
  • Sovereign Wealth Fund2.68%
  • Hedge Fund1.66%
  • Government Pension Fund1.60%
  • Private Company1.59%
  • VC/PE Fund1.25%
  • Individual/Insider0.96%
Institutional holders1,468
Institutional ownership94.4%

Insider activity

Total transactions22
Bought21
Sold13

Short interest

Report dateShares short% of floatDays to cover
31 Aug 2026 6,692,130 2.6% 5.1
14 Aug 2026 5,846,996 2.3% 4.6
31 Jul 2026 6,242,351 2.4% 4.6
15 Jul 2026 7,990,928 3.1% 4.3
30 Jun 2026 6,819,347 2.7% 3.4
15 Jun 2026 6,873,982 2.7% 3.8
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