Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionEverSource Wealth Advisors, LLC
Latest Disclosed Ownership2,455 shares
Latest Disclosed Value $ 531,641
EverSource Wealth Advisors, LLC reports 12.16% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 15, 2026 - EverSource Wealth Advisors, LLC filed a 13F-HR/A form disclosing ownership of 2,455 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $531,641 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 2,795 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -12.16% 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.

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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)
2026-05-15 2026-03-31 13F/A-1 GALLAGHER ARTHUR J & CO COM Stock 363576109 2,455 -340 -12.16 532 -26.56 0.0025
2026-05-14 2026-03-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 10,988 8,193 884 0.0049
2026-02-06 2025-12-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 2,795 -676 -19.48 723 -32.74 0.0266
2025-11-10 2025-09-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 3,471 138 4.14 1,075 0.84 0.0425
2025-08-13 2025-06-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 3,333 475 16.62 1,067 8.11 0.0482
2025-05-13 2025-03-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 2,858 742 35.07 987 64.33 0.0542
2025-02-10 2024-12-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 2,116 554 35.47 601 36.67 0.0338
2024-11-08 2024-09-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 1,562 188 13.68 440 12.85 0.0278
2024-08-13 2024-06-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 1,374 319 30.24 389 57.49 0.0259
2024-06-11 2024-03-31 13F/A-1 GALLAGHER ARTHUR J & CO COM Stock 363576109 1,055 95 9.90 248 14.88 0.0195
2024-05-13 2024-03-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 960 0 216 0.0076
2024-02-09 2023-12-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 960 70 7.87 216 6.44 0.0198
2023-11-03 2023-09-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 890 35 4.09 203 8.02 0.0215
2023-08-04 2023-06-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 855 32 3.89 188 19.11 0.0207
2023-05-11 2023-03-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 823 71 9.44 158 11.35 0.0196
2023-02-09 2022-12-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 752 -116 -13.36 142 -5.37 0.0215
2022-11-07 2022-09-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 868 -36 -3.98 149 0.68 0.0341
2022-08-01 2022-06-30 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 904 285 46.04 148 37.04 0.0382
2022-05-25 2022-03-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 619 317 104.97 108 107.69 0.0274
2022-02-17 2021-12-31 13F/A-1 GALLAGHER ARTHUR J & CO COM Stock 363576109 302 302 52 0.0146
2022-02-07 2021-12-31 13F GALLAGHER ARTHUR J & CO COM Stock 363576109 302 302 51 0.0143
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.