Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionPenserra Capital Management LLC
Latest Disclosed Ownership1,448 shares
Latest Disclosed Value $ 313
Penserra Capital Management LLC reports 3.21% increase in ownership of AJG / Arthur J. Gallagher & Co.

On May 11, 2026 - Penserra Capital Management LLC filed a 13F-HR form disclosing ownership of 1,448 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $313 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,403 shares of Arthur J. Gallagher & Co..

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)
2026-05-11 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,448 45 3.21 0 0.0037
2026-02-12 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,403 -1 -0.07 0 0.0043
2025-11-04 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,404 15 1.08 0 0.0052
2025-08-06 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,389 -4,226 -75.26 0 -100.00 0.0062
2025-04-29 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 5,615 4,044 257.42 2 0.0345
2025-02-13 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,571 544 52.97 0 0.0081
2024-11-12 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,027 12 1.18 0 0.0062
2024-08-13 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,015 14 1.40 0 0.0033
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,001 -947 -48.61 0 0.0031
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,948 -4,116 -67.88 0 -100.00 0.0082
2023-11-15 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 6,064 2,960 95.36 1 0.0285
2023-08-11 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 3,104 2,016 185.29 1 0.0135
2023-04-24 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,088 -14,693 -93.11 0 -100.00 0.0043
2023-02-13 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 15,781 14,777 1,471.81 3 -98.83 0.0653
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,004 26 2.66 171 7.55 0.0048
2022-08-15 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 978 6 0.62 159 -5.92 0.0043
2022-05-13 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 972 54 5.88 169 9.03 0.0040
2022-02-15 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 918 219 31.33 155 50.49 0.0033
2021-11-15 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 699 67 10.60 103 17.05 0.0021
2021-08-12 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 632 154 32.22 88 49.15 0.0016
2021-05-13 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 478 76 18.91 59 20.41 0.0011
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 402 96 31.37 49 53.13 0.0012
2020-11-13 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 306 36 13.33 32 23.08 0.0012
2020-08-14 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 270 38 16.38 26 30.00 0.0013
2020-05-14 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 232 64 38.10 20 17.65 0.0014
2020-02-14 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 168 -16,081 -98.97 17 -98.83 0.0011
2019-11-15 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 16,249 -343 -2.07 1,454 0.07 0.1235
2019-08-13 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 16,592 886 5.64 1,453 10.66 0.1130
2019-05-08 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 15,706 -25,640 -62.01 1,313 -56.91 0.1051
2019-02-06 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 41,346 18,374 79.98 3,047 78.19 0.2960
2018-11-05 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 22,972 22,972 1,710 0.1050
2016-05-10 2016-03-31 13F * GALLAGHER ARTHUR J & CO COM COM 363576109 0 -132 -100.00 0 -100.00
2016-02-08 2015-12-31 13F * GALLAGHER ARTHUR J & CO COM COM 363576109 132 132 5 0.0005
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.