Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionAndra AP-fonden
Latest Disclosed Ownership12,347 shares
Latest Disclosed Value $ 2,674,113
Andra AP-fonden reports 67.68% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 8, 2026 - Andra AP-fonden filed a 13F-HR form disclosing ownership of 12,347 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $2,674,113 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 38,200 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -67.68% 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)
2026-05-08 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 12,347 -25,853 -67.68 2,674 -72.95 0.0319
2026-02-12 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 38,200 21,100 123.39 9,886 86.65 0.1221
2025-11-12 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 17,100 2,000 13.25 5,297 9.58 0.0677
2025-08-06 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 15,100 12,200 420.69 4,834 382.82 0.0672
2025-05-13 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 2,900 -12,000 -80.54 1,001 -76.33 0.0164
2025-02-07 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 14,900 2,500 20.16 4,229 21.24 0.0677
2024-11-12 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 12,400 300 2.48 3,489 11.19 0.0514
2024-08-07 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 12,100 1,500 14.15 3,138 18.38 0.0527
2024-05-13 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 10,600 10,600 2,650 0.0471
2023-11-09 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -41,200 -100.00 0 -100.00
2023-08-09 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 41,200 -15,700 -27.59 9,046 -16.89 0.2288
2023-05-12 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 56,900 2,500 4.60 10,886 108,750.00 0.2832
2023-02-13 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 54,400 -7,800 -12.54 10 -99.91 0.3109
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 62,200 -1,600 -2.51 10,650 2.38 0.3490
2022-08-15 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 63,800 -11,100 -14.82 10,402 -18.15 0.2979
2022-02-15 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 74,900 -17,800 -19.20 12,708 -7.78 0.2588
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 92,700 20,200 27.86 13,780 35.68 0.2836
2021-08-16 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 72,500 -7,100 -8.92 10,156 2.26 0.2074
2021-05-17 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 79,600 -4,800 -5.69 9,932 -4.88 0.2189
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 84,400 -6,900 -7.56 10,441 8.32 0.2304
2020-11-12 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 91,300 20,700 29.32 9,639 40.04 0.2614
2020-08-06 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 70,600 -2,600 -3.55 6,883 15.35 0.2003
2020-05-13 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 73,200 17,600 31.65 5,967 12.69 0.2170
2020-02-10 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 55,600 -16,000 -22.35 5,295 -17.43 0.1515
2019-11-19 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 71,600 -1,300 -1.78 6,413 0.44 0.1905
2019-08-15 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 72,900 -8,900 -10.88 6,385 -0.06 0.1838
2019-05-14 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 81,800 -10,200 -11.09 6,389 -6.70 0.1861
2018-10-16 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 92,000 -10,000 -9.80 6,848 2.84 0.1766
2018-08-17 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 102,000 33,500 48.91 6,659 41.44 0.1800
2018-04-10 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 68,500 13,000 23.42 4,708 34.05 0.1220
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 55,500 -9,400 -14.48 3,512 -12.09 0.0797
2017-10-31 2017-09-30 13F GALLAGHER ARTHUR J COM 363576109 64,900 7,300 12.67 3,995 21.13 0.0935
2017-08-08 2017-06-30 13F GALLAGHER ARTHUR J COM 363576109 57,600 10,000 21.01 3,298 22.56 0.0816
2017-05-15 2017-03-31 13F GALLAGHER ARTHUR J COM 363576109 47,600 0 0.00 2,691 8.82 0.0631
2017-02-13 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 47,600 -2,200 -4.42 2,473 -2.37 0.0677
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 49,800 -2,200 -4.23 2,533 2.34 0.0678
2016-08-12 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 52,000 -200 -0.38 2,475 6.59 0.0632
2016-05-04 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 52,200 -4,500 -7.94 2,322 0.04 0.0608
2016-02-10 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 56,700 6,000 11.83 2,321 10.89 0.0663
2015-11-12 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 50,700 7,400 17.09 2,093 2.20 0.0613
2015-08-13 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 43,300 43,300 2,048 0.0591
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.