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Arthur J. Gallagher & Co.

AJG
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000354190

In the last 90 days, Arthur J. Gallagher & Co. insiders filed 0 open-market purchases and 4 sales; 1,295 institutions reported holding it in 13F filings for Q2 2026, worth $54.7B in total; no superinvestor holds it.

Superinvestors holding AJG, Q2 2026

See all superinvestors

No superinvestor reported holding AJG in Q2 2026.

Moves by quarter

Superinvestors that opened, added to, trimmed or sold out of AJG each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.

  1. Q2 2026

    0 superinvestors holding at quarter end

    Sold out
    Viking Global Investors
  2. Q1 2026

    1 superinvestor holding at quarter end

    Reduced
    Viking Global Investors (−30.1%)
  3. Q4 2025

    1 superinvestor holding at quarter end

    New
    Viking Global Investors
  4. Q3 2025

    0 superinvestors holding at quarter end

    Sold out
    Viking Global Investors
  5. Q2 2025

    1 superinvestor holding at quarter end

    Added
    Viking Global Investors (+8.9%)
  6. Q1 2025

    1 superinvestor holding at quarter end

    New
    Viking Global Investors
    Sold out
    Soros Fund Management
  7. Q4 2024

    1 superinvestor holding at quarter end

    New
    Soros Fund Management
  8. Q4 2023

    0 superinvestors holding at quarter end

    Sold out
    Viking Global Investors
  9. Q3 2023

    1 superinvestor holding at quarter end

    Added
    Viking Global Investors (+16.5%)
  10. Q2 2023

    1 superinvestor holding at quarter end

    New
    Viking Global Investors