Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership23,767 shares
Latest Disclosed Value $ 5,147,457
Ensign Peak Advisors, Inc reports 61.06% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 23,767 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $5,147,457 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 61,028 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -61.06% 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)
2026-05-13 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 23,767 -37,261 -61.06 5,147 -67.41 0.0096
2026-02-12 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 61,028 2,738 4.70 15,793 -12.52 0.0279
2025-11-13 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 58,290 5,862 11.18 18,055 7.57 0.0296
2025-08-12 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 52,428 -6,711 -11.35 16,783 -17.80 0.0287
2025-05-14 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 59,139 19,176 47.98 20,417 80.00 0.0391
2025-02-14 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 39,963 8,959 28.90 11,343 30.04 0.0202
2024-11-14 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 31,004 -550 -1.74 8,724 6.61 0.0153
2024-08-13 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 31,554 -5,239 -14.24 8,182 -11.06 0.0150
2024-05-14 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 36,793 13,775 59.84 9,200 77.72 0.0168
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 23,018 9,650 72.19 5,176 69.93 0.0102
2023-11-13 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 13,368 -17,390 -56.54 3,047 -54.89 0.0065
2023-08-14 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 30,758 22,545 274.50 6,754 329.85 0.0137
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 8,213 -67,315 -89.13 1,571 -88.97 0.0034
2023-02-13 2022-12-31 13F Arthur J. Gallagher COM 363576109 75,528 9,375 14.17 14,240 25.72 0.0321
2022-11-14 2022-09-30 13F Arthur J. Gallagher COM 363576109 66,153 -1,255 -1.86 11,327 3.07 0.0281
2022-08-12 2022-06-30 13F Arthur J Gallagher COM 363576109 67,408 805 1.21 10,990 -5.49 0.0261
2022-05-16 2022-03-31 13F Arthur J Gallagher COM 363576109 66,603 -6,110 -8.40 11,629 -5.74 0.0236
2022-02-11 2021-12-31 13F Arthur J Gallagher COM 363576109 72,713 55,081 312.39 12,337 370.70 0.0236
2021-11-12 2021-09-30 13F Arthur J Gallagher COM 363576109 17,632 -2,623 -12.95 2,621 -7.61 0.0055
2021-08-13 2021-06-30 13F Arthur J Gallagher COM 363576109 20,255 -2,735 -11.90 2,837 -1.08 0.0057
2021-05-12 2021-03-31 13F Arthur J Gallagher COM 363576109 22,990 4,825 26.56 2,868 27.69 0.0062
2021-02-12 2020-12-31 13F Arthur J Gallagher COM 363576109 18,165 -6,445 -26.19 2,246 -13.58 0.0051
2020-11-12 2020-09-30 13F Arthur J Gallagher COM 363576109 24,610 0 0.00 2,599 8.29 0.0066
2020-08-12 2020-06-30 13F Arthur J Gallagher COM 363576109 24,610 960 4.06 2,400 24.55 0.0065
2020-05-11 2020-03-31 13F Arthur J Gallagher COM 363576109 23,650 -28,463 -54.62 1,927 -61.17 0.0065
2020-02-14 2019-12-31 13F Arthur J Gallagher COM 363576109 52,113 52,113 4,963 0.0131
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.