Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionDanske Bank A/s
Latest Disclosed Ownership151,037 shares
Latest Disclosed Value $ 32,711,594
Danske Bank A/s reports 0.48% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 12, 2026 - Danske Bank A/s filed a 13F-HR form disclosing ownership of 151,037 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $32,711,594 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 151,760 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -0.48% 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)
2026-05-12 2026-03-31 13F Arthur J Gallagher COM 363576109 151,037 -723 -0.48 32,712 -16.71 0.0370
2026-02-02 2025-12-31 13F Arthur J Gallagher COM 363576109 151,760 -210 -0.14 39,274 -16.57 0.0913
2025-11-19 2025-09-30 13F/A-1 Arthur J Gallagher COM 363576109 151,970 -79,372 -34.31 47,071 -36.44 0.1171
2025-12-18 2025-06-30 13F Arthur J Gallagher COM 363576109 231,342 40,224 21.05 74,057 12.24 0.1839
2025-12-18 2025-03-31 13F Arthur J Gallagher COM 363576109 191,118 17,012 9.77 65,982 33.51 0.2015
2026-03-18 2024-12-31 13F Arthur J Gallagher COM 363576109 174,106 20,159 13.09 49,420 14.09 0.1478
2026-03-18 2024-09-30 13F Arthur J Gallagher COM 363576109 153,947 63,606 70.41 43,316 84.91 0.1443
2026-03-18 2024-06-30 13F Arthur J Gallagher COM 363576109 90,341 -9,300 -9.33 23,426 -5.97 0.0864
2026-03-18 2024-03-31 13F Arthur J Gallagher COM 363576109 99,641 99,641 24,914 0.0782
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.