Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionOneAscent Financial Services LLC
Latest Disclosed Ownership1,577 shares
Latest Disclosed Value $ 341,600
OneAscent Financial Services LLC reports 94.93% increase in ownership of AJG / Arthur J. Gallagher & Co.

On April 21, 2026 - OneAscent Financial Services LLC filed a 13F-HR form disclosing ownership of 1,577 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $341,600 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 809 shares of Arthur J. Gallagher & Co.. This represents a change in shares of 94.93% 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)
2026-04-21 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,577 768 94.93 342 63.16 0.0185
2026-02-11 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 809 3 0.37 209 -16.06 0.0193
2025-10-31 2025-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 806 -1,390 -63.30 250 0.0306
2025-10-22 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,264 -932 391 0.0570
2025-08-12 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 2,196 -2,824 -56.25 1 -100.00 0.0501
2025-05-05 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 5,020 2,225 79.61 2 0.1126
2025-02-12 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 2,795 -112 -3.85 1 0.0674
2024-11-07 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 2,907 2,907 1 0.5885
2024-07-17 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -2,787 -100.00 0 0.0000
2024-04-16 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 2,787 511 22.45 1 0.0770
2024-01-11 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 2,276 965 73.61 1 0.0635
2023-10-13 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,311 1,311 0 0.0778
2023-07-10 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -1,379 -100.00 0 0.0000
2023-04-17 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,379 1,379 0 0.1072
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.