Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionHMS Capital Management, LLC
Latest Disclosed Ownership1,196 shares
Latest Disclosed Value $ 258,950
HMS Capital Management, LLC reports 71.19% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On April 22, 2026 - HMS Capital Management, LLC filed a 13F-HR form disclosing ownership of 1,196 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $258,950 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 4,151 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -71.19% 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)
2026-04-22 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,196 -2,955 -71.19 259 -75.98 0.1002
2026-01-16 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 4,151 -66 -1.57 1,074 -17.76 0.4445
2025-10-30 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 4,217 -148 -3.39 1,306 -6.51 0.5492
2025-07-07 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 4,365 -147 -3.26 1,397 -0.36 0.6281
2025-05-14 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 4,512 -59 -1.29 1,403 8.10 0.7780
2025-01-29 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 4,571 32 0.71 1,298 1.57 0.6272
2024-10-30 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 4,539 12 0.27 1,277 8.87 0.6260
2024-07-24 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 4,527 336 8.02 1,174 12.03 0.6116
2024-04-24 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 4,191 464 12.45 1,048 24.94 0.5805
2024-01-17 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 3,727 3,727 838 0.5151
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.