Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionBahl & Gaynor Inc
Latest Disclosed Ownership29,264 shares
Latest Disclosed Value $ 6,337,997
Bahl & Gaynor Inc reports 2.69% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 7, 2026 - Bahl & Gaynor Inc filed a 13F-HR form disclosing ownership of 29,264 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $6,337,997 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 30,072 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -2.69% 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)
2026-05-07 2026-03-31 13F Gallagher Arthur J COM 363576109 29,264 -808 -2.69 6,338 -18.57 0.0320
2026-02-12 2025-12-31 13F Gallagher Arthur J COM 363576109 30,072 -88 -0.29 7,782 -16.69 0.0394
2025-11-12 2025-09-30 13F Gallagher Arthur J COM 363576109 30,160 -315 -1.03 9,342 -4.24 0.0464
2025-08-12 2025-06-30 13F Gallagher Arthur J COM 363576109 30,475 0 0.00 9,756 -7.28 0.0494
2025-05-14 2025-03-31 13F Gallagher Arthur J COM 363576109 30,475 -300 -0.97 10,521 20.45 0.0536
2025-02-06 2024-12-31 13F Gallagher Arthur J COM 363576109 30,775 -1,855 -5.68 8,735 -4.86 0.0462
2024-11-12 2024-09-30 13F Gallagher Arthur J COM 363576109 32,630 -601 -1.81 9,181 6.55 0.0473
2024-08-07 2024-06-30 13F Gallagher Arthur J COM 363576109 33,231 -1,236 -3.59 8,617 -0.01 0.0481
2024-05-10 2024-03-31 13F Gallagher Arthur J COM 363576109 34,467 -600 -1.71 8,618 9.30 0.0480
2024-02-02 2023-12-31 13F Gallagher Arthur J COM 363576109 35,067 -400 -1.13 7,886 -2.45 0.0474
2023-11-03 2023-09-30 13F Gallagher Arthur J COM 363576109 35,467 -355 -0.99 8,084 2.77 0.0516
2023-08-14 2023-06-30 13F Gallagher Arthur J COM 363576109 35,822 -976 -2.65 7,865 11.73 0.0479
2023-05-03 2023-03-31 13F Gallagher Arthur J COM 363576109 36,798 -3,190 -7.98 7,040 -6.63 0.0379
2023-02-10 2022-12-31 13F Gallagher Arthur J COM 363576109 39,988 -2,854 -6.66 7,539 2.78 0.0471
2022-11-14 2022-09-30 13F Gallagher Arthur J COM 363576109 42,842 -2,434 -5.38 7,335 -0.64 0.0486
2022-08-08 2022-06-30 13F Gallagher Arthur J COM 363576109 45,276 -1,351 -2.90 7,382 -9.32 0.0486
2022-05-12 2022-03-31 13F Gallagher Arthur J COM 363576109 46,627 -1,865 -3.85 8,141 -1.06 0.0599
2022-02-10 2021-12-31 13F Gallagher Arthur J COM 363576109 48,492 1,144 2.42 8,228 16.91 0.0460
2021-11-15 2021-09-30 13F Gallagher Arthur J COM 363576109 47,348 3,333 7.57 7,038 14.14 0.0431
2021-08-06 2021-06-30 13F Gallagher Arthur J COM 363576109 44,015 -27,926 -38.82 6,166 -31.31 0.0375
2021-05-11 2021-03-31 13F Gallagher Arthur J COM 363576109 71,941 -514 -0.71 8,976 0.13 0.0568
2021-02-02 2020-12-31 13F Gallagher Arthur J COM 363576109 72,455 -20,238 -21.83 8,964 -8.40 0.0571
2020-11-12 2020-09-30 13F Gallagher Arthur J COM 363576109 92,693 -7,726 -7.69 9,786 -0.04 0.0694
2020-08-13 2020-06-30 13F Gallagher Arthur J COM 363576109 100,419 -28,087 -21.86 9,790 -6.53 0.0736
2020-05-26 2020-03-31 13F/A-1 Gallagher Arthur J COM 363576109 128,506 -15,345 -10.67 10,474 -23.54 0.0913
2020-05-15 2020-03-31 13F Gallagher Arthur J COM 363576109 40,475 -103,376 3,299 109,868.9565
2020-02-14 2019-12-31 13F Gallagher Arthur J & COM 363576109 143,851 16,338 12.81 13,699 19.95 0.0950
2019-11-14 2019-09-30 13F Gallagher Arthur J & COM 363576109 127,513 8,829 7.44 11,421 9.87 0.0826
2019-08-12 2019-06-30 13F Gallagher Arthur J & COM 363576109 118,684 8,548 7.76 10,395 20.84 0.0770
2019-05-13 2019-03-31 13F Gallagher Arthur J & COM 363576109 110,136 28,546 34.99 8,602 43.06 0.0789
2019-02-12 2018-12-31 13F Gallagher Arthur J & COM 363576109 81,590 17,164 26.64 6,013 25.38 0.0643
2018-11-09 2018-09-30 13F Gallagher Arthur J & COM 363576109 64,426 -6,777 -9.52 4,796 3.18 0.0617
2018-08-14 2018-06-30 13F Gallagher Arthur J & COM 363576109 71,203 9,464 15.33 4,648 9.55 0.0486
2018-05-11 2018-03-31 13F Arthur J Gallagher & COM 363576109 61,739 857 1.41 4,243 10.12 0.0467
2018-02-13 2017-12-31 13F Arthur J Gallagher & COM 363576109 60,882 8,773 16.84 3,853 20.14 0.0396
2017-11-13 2017-09-30 13F Arthur J Gallagher & COM 363576109 52,109 4,703 9.92 3,207 18.17 0.0351
2017-08-11 2017-06-30 13F/A-1 Arthur J Gallagher COM 363576109 47,406 2,983 6.71 2,714 8.04 0.0310
2017-08-10 2017-06-30 13F Arthur J Gallagher COM 363576109 43,870 -553 2,279
2017-05-09 2017-03-31 13F Arthur J Gallagher COM 363576109 44,423 553 1.26 2,512 10.22 0.0288
2017-02-14 2016-12-31 13F Arthur J Gallagher COM 363576109 43,870 -155 -0.35 2,279 1.74 0.0278
2016-11-07 2016-09-30 13F Arthur J Gallagher COM 363576109 44,025 1,055 2.46 2,240 9.54 0.0271
2016-08-10 2016-06-30 13F Arthur J Gallagher COM 363576109 42,970 -99,312 -69.80 2,045 -67.69 0.0265
2016-05-10 2016-03-31 13F Arthur J Gallagher COM 363576109 142,282 -1,062,177 -88.19 6,329 -87.17 0.0840
2016-02-12 2015-12-31 13F Arthur J Gallagher COM 363576109 1,204,459 -64,279 -5.07 49,311 -5.85 0.6751
2015-11-10 2015-09-30 13F Arthur J Gallagher COM 363576109 1,268,738 12,630 1.01 52,374 -11.85 0.7525
2015-08-03 2015-06-30 13F Arthur J Gallagher COM 363576109 1,256,108 2,740 0.22 59,414 1.40 0.7980
2015-05-12 2015-03-31 13F Arthur J Gallagher COM 363576109 1,253,368 1,253,368 0.00 58,595 0.7936
2015-02-04 2014-12-31 13F Arthur J Gallagher COM 363576109 0 -1,066,148 -100.00 0 -100.00
2014-11-12 2014-09-30 13F Arthur J Gallagher COM 363576109 1,066,148 136,339 14.66 48,361 11.61 0.7208
2014-08-13 2014-06-30 13F Arthur J Gallagher COM 363576109 929,809 30,186 3.36 43,329 1.23 0.6589
2014-05-20 2014-03-31 13F Arthur J Gallagher COM 363576109 899,623 29,073 3.34 42,804 4.77 0.6860
2014-02-14 2013-12-31 13F Arthur J Gallagher COM 363576109 870,550 29,845 3.55 40,855 11.33 0.6697
2013-11-13 2013-09-30 13F Arthur J Gallagher COM 363576109 840,705 48,859 6.17 36,697 6.07 0.6596
2013-08-16 2013-06-30 13F Arthur J Gallagher COM 363576109 791,846 791,846 34,596 0.6539
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.