Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionBallew Advisors, Inc
Latest Disclosed Ownership14,905 shares
Latest Disclosed Value $ 3,255,095
Ballew Advisors, Inc reports 0.07% increase in ownership of AJG / Arthur J. Gallagher & Co.

On April 10, 2026 - Ballew Advisors, Inc filed a 13F-HR form disclosing ownership of 14,905 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $3,255,095 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 14,895 shares of Arthur J. Gallagher & Co.. This represents a change in shares of 0.07% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-10 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 14,905 10 0.07 3,255 -14.95 1.8353
2026-01-14 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 14,895 -119 -0.79 3,828 -16.07 2.1576
2025-10-15 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 15,014 -1,741 -10.39 4,560 -14.43 2.5454
2025-07-08 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 16,755 -1,036 -5.82 5,330 -10.32 3.1637
2025-04-16 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 17,791 -2,991 -14.39 5,943 0.05 3.9853
2025-01-15 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 20,782 849 4.26 5,940 1.02 3.7898
2024-10-10 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 19,933 -1,805 -8.30 5,879 0.00 3.9453
2024-07-17 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 21,738 999 4.82 5,879 18.12 3.8949
2024-04-11 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 20,739 18 0.09 4,978 2.89 3.4346
2024-01-18 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 20,721 -556 -2.61 4,838 -0.84 3.6351
2023-10-06 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 21,277 -978 -4.39 4,878 1.33 4.0153
2023-07-20 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 22,255 0 0.00 4,815 2.58 3.4780
2023-07-06 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 22,255 -1,399 -5.91 4,693 1.76 3.4216
2023-01-13 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 23,654 26 0.11 4,612 10.55 3.5328
2022-10-11 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 23,628 28 0.12 4,172 8.62 3.7432
2022-07-26 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 23,600 -7,437 -23.96 3,841 -31.63 3.5056
2022-04-28 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 31,037 -3,031 -8.90 5,618 4.56 4.2900
2022-01-26 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 34,068 24,068 240.68 5,373 245.09 3.7400
2021-10-19 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 10,000 0 0.00 1,557 11.93 1.1438
2021-07-15 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 10,000 -10,000 -50.00 1,391 -45.06 0.9652
2021-04-13 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 20,000 10,000 100.00 2,532 113.67 0.9329
2021-01-13 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 10,000 0 0.00 1,185 10.64 0.9141
2020-10-06 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 10,000 0 0.00 1,071 9.62 0.9082
2020-07-13 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 10,000 0 0.00 977 19.88 0.9593
2020-07-10 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 10,000 10,000 815 0.9204
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.