Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionOxbow Advisors, LLC
Latest Disclosed Ownership13,800 shares
Latest Disclosed Value $ 2,988,804
Oxbow Advisors, LLC reports 3.63% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On April 27, 2026 - Oxbow Advisors, LLC filed a 13F-HR form disclosing ownership of 13,800 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $2,988,804 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 14,320 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -3.63% 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)
2026-04-27 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 13,800 -520 -3.63 2,989 -19.35 0.2540
2026-02-04 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 14,320 -104 -0.72 3,706 -17.06 0.3260
2025-10-31 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 14,424 0 0.00 4,468 -3.25 0.4150
2025-07-29 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 14,424 0 0.00 4,617 -7.27 0.5046
2025-05-01 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 14,424 0 0.00 4,980 21.62 0.5260
2025-02-03 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 14,424 0 0.00 4,094 0.89 0.4819
2024-11-01 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 14,424 0 0.00 4,058 8.50 0.4026
2024-08-06 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 14,424 -73 -0.50 3,740 3.20 0.4388
2024-05-06 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 14,497 156 1.09 3,625 12.37 0.4976
2024-02-08 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 14,341 -100 -0.69 3,225 -2.01 0.4894
2023-11-14 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 14,441 -16 -0.11 3,292 3.69 0.5181
2023-08-04 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 14,457 14,457 3,174 0.4986
2021-02-02 2020-12-31 13F Arthur J Gallagher COM 363576109 0 -14,880 -100.00 0 -100.00
2020-11-06 2020-09-30 13F Arthur J Gallagher COM 363576109 14,880 -1,260 -7.81 1,571 -0.13 0.1993
2020-08-12 2020-06-30 13F Arthur J Gallagher COM 363576109 16,140 -330 -2.00 1,573 17.21 0.2290
2020-05-06 2020-03-31 13F Arthur J Gallagher COM 363576109 16,470 16,470 1,342 0.2257
2017-07-21 2017-06-30 13F ARTHUR J GALLAGHER COM 363576109 0 -8,027 -100.00 0 -100.00
2017-04-28 2017-03-31 13F ARTHUR J GALLAGHER COM 363576109 8,027 -575 -6.68 454 1.57 0.0737
2017-01-26 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 8,602 -10,150 -54.13 447 -53.19 0.0558
2016-10-31 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 18,752 -1,850 -8.98 955 -2.65 0.1311
2016-08-02 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 20,602 -1,540 -6.96 981 -0.41 0.1405
2016-05-02 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 22,142 -25,763 -53.78 985 -49.82 0.1395
2016-02-01 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 47,905 3,335 7.48 1,963 6.68 0.2452
2015-11-03 2015-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 44,570 675 1.54 1,840 -11.37 0.3028
2015-11-03 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 44,570 1,840
2015-08-11 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 43,895 13,425 44.06 2,076 45.79 0.2683
2015-04-23 2015-03-31 13F ARTHUR J GALLAGHER COM 363576109 30,470 -2,120 -6.51 1,424 -7.17 0.2118
2015-01-21 2014-12-31 13F ARTHUR J GALLAGHER COM 363576109 32,590 -50 -0.15 1,534 3.58 0.2145
2014-10-21 2014-09-30 13F/A-1 ARTHUR J GALLAGHER COM 363576109 32,640 -805 -2.41 1,481 -5.00 0.2096
2014-10-20 2014-09-30 13F ARTHUR J GALLAGHER COM 363576109 33,445 1,559
2014-07-18 2014-06-30 13F ARTHUR J GALLAGHER COM 363576109 33,445 -375 -1.11 1,559 -3.11 0.2071
2014-04-21 2014-03-31 13F ARTHUR J GALLAGHER COM 363576109 33,820 -205 -0.60 1,609 0.75 0.2387
2014-01-21 2013-12-31 13F ARTHUR J GALLAGHER COM 363576109 34,025 -91 -0.27 1,597 7.25 0.2251
2013-10-24 2013-09-30 13F ARTHUR J GALLAGHER COM 363576109 34,116 -560 -1.61 1,489 -1.72 0.2377
2013-07-30 2013-06-30 13F ARTHUR J GALLAGHER COM 363576109 34,676 34,676 1,515 0.2655
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.