Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionPrivate Trust Co Na
Latest Disclosed Ownership1,588 shares
Latest Disclosed Value $ 343,927
Private Trust Co Na reports 2.46% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On April 30, 2026 - Private Trust Co Na filed a 13F-HR form disclosing ownership of 1,588 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $343,927 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 1,628 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -2.46% 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)
2026-04-30 2026-03-31 13F Arthur J. Gallagher Com 363576109 1,588 -40 -2.46 344 -18.53 0.0307
2026-01-26 2025-12-31 13F Arthur J. Gallagher Com 363576109 1,628 -376 -18.76 421 -32.10 0.0369
2025-10-15 2025-09-30 13F Arthur J. Gallagher Com 363576109 2,004 -137 -6.40 621 -9.49 0.0547
2025-07-29 2025-06-30 13F Arthur J. Gallagher Com 363576109 2,141 -29 -1.34 685 -8.54 0.0653
2025-04-28 2025-03-31 13F Arthur J. Gallagher Com 363576109 2,170 75 3.58 749 26.09 0.0771
2025-02-05 2024-12-31 13F Arthur J. Gallagher Com 363576109 2,095 -24 -1.13 595 -0.34 0.0611
2024-11-13 2024-09-30 13F Arthur J. Gallagher Com 363576109 2,119 -148 -6.53 596 1.53 0.0601
2024-07-23 2024-06-30 13F Arthur J. Gallagher Com 363576109 2,267 -999 -30.59 588 -28.06 0.0633
2024-04-24 2024-03-31 13F Arthur J. Gallagher Com 363576109 3,266 -796 -19.60 817 -10.62 0.0882
2024-01-24 2023-12-31 13F Arthur J. Gallagher Com 363576109 4,062 -153 -3.63 914 -4.90 0.1073
2023-10-18 2023-09-30 13F Arthur J. Gallagher Com 363576109 4,215 705 20.09 961 24.68 0.1267
2023-07-28 2023-06-30 13F Arthur J. Gallagher Com 363576109 3,510 1 0.03 771 14.75 0.0972
2023-04-12 2023-03-31 13F Arthur J. Gallagher Com 363576109 3,509 -1,001 -22.20 671 0.0915
2023-01-18 2022-12-31 13F Arthur J. Gallagher Com 363576109 4,510 36 0.80 1 -100.00 0.1261
2022-10-17 2022-09-30 13F Arthur J. Gallagher Com 363576109 4,474 -59 -1.30 766 3.65 0.1244
2022-09-16 2022-06-30 13F/A-1 Arthur J. Gallagher Com 363576109 4,533 1,936 74.55 739 63.13 0.1148
2022-07-13 2022-06-30 13F Arthur J. Gallagher Equities 363576109 2,597 0 453 0.0707
2022-04-12 2022-03-31 13F Arthur J. Gallagher Equities 363576109 2,597 -3,791 -59.35 453 -58.21 0.0707
2022-01-10 2021-12-31 13F Arthur J. Gallagher Equities 363576109 6,388 -369 -5.46 1,084 7.97 0.1497
2021-10-06 2021-09-30 13F Arthur J. Gallagher Equities 363576109 6,757 305 4.73 1,004 11.06 0.1461
2021-07-07 2021-06-30 13F Arthur J. Gallagher Equities 363576109 6,452 -1,210 -15.79 904 -5.34 0.1369
2021-04-06 2021-03-31 13F Arthur J. Gallagher Equities 363576109 7,662 -881 -10.31 955 -9.56 0.1551
2021-01-05 2020-12-31 13F Arthur J. Gallagher Equities 363576109 8,543 -10 -0.12 1,056 16.94 0.1779
2020-10-01 2020-09-30 13F Arthur J. Gallagher Equities 363576109 8,553 174 2.08 903 10.80 0.1742
2020-07-07 2020-06-30 13F Arthur J. Gallagher Equities 363576109 8,379 -508 -5.72 815 12.57 0.1709
2020-04-07 2020-03-31 13F Arthur J. Gallagher Equities 363576109 8,887 71 0.81 724 -13.71 0.1874
2020-01-02 2019-12-31 13F Arthur J. Gallagher Equities 363576109 8,816 1,924 27.92 839 35.98 0.1557
2019-10-01 2019-09-30 13F Arthur J. Gallagher Equities 363576109 6,892 15 0.22 617 2.49 0.1216
2019-07-02 2019-06-30 13F Arthur J. Gallagher Equities 363576109 6,877 -266 -3.72 602 8.08 0.1214
2019-04-02 2019-03-31 13F Arthur J. Gallagher Equities 363576109 7,143 7,143 557 0.1159
2015-01-28 2014-12-31 13F Arthur J. Gallagher Com 363576109 0 -668 -100.00 0 -100.00
2014-10-09 2014-09-30 13F Arthur J. Gallagher Com 363576109 668 0 0.00 30 -3.23 0.0102
2014-07-22 2014-06-30 13F Arthur J. Gallagher Com 363576109 668 0 0.00 31 -3.12 0.0101
2014-04-07 2014-03-31 13F Arthur J. Gallagher Com 363576109 668 0 0.00 32 3.23 0.0121
2014-01-08 2013-12-31 13F Arthur J. Gallagher Com 363576109 668 0 0.00 31 6.90 0.0125
2013-10-07 2013-09-30 13F Arthur J. Gallagher Com 363576109 668 0 0.00 29 0.00 0.0131
2013-08-01 2013-06-30 13F Arthur J. Gallagher Com 363576109 668 0 0.00 29 0.00 0.0133
2013-07-26 2013-03-31 13F Arthur J. Gallagher Com 363576109 668 668 29 0.0133
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.