Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionSeacrest Wealth Management, Llc
Latest Disclosed Ownership1,113 shares
Latest Disclosed Value $ 241,054
Seacrest Wealth Management, Llc reports 1.50% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On April 15, 2026 - Seacrest Wealth Management, Llc filed a 13F-HR form disclosing ownership of 1,113 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $241,054 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 1,130 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -1.50% 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)
2026-04-15 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,113 -17 -1.50 241 -17.47 0.0258
2026-01-12 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,130 -227 -16.73 293 -29.81 0.0296
2025-11-13 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,357 -185 -12.00 417 -15.62 0.0439
2025-07-11 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,542 34 2.25 494 -5.19 0.0536
2025-04-11 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,508 232 18.18 521 43.65 0.0589
2025-01-14 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,276 142 12.52 362 13.48 0.0381
2024-10-16 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,134 -7 -0.61 319 8.14 0.0344
2024-07-22 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,141 14 1.24 296 4.98 0.0337
2024-04-18 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,127 16 1.44 282 12.40 0.0344
2024-01-18 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,111 10 0.91 250 0.00 0.0309
2023-10-12 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,101 4 0.36 251 4.17 0.0326
2023-07-14 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,097 20 1.86 241 16.50 0.0304
2023-05-12 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,077 8 0.75 206 2.49 0.0279
2023-02-14 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,069 1,069 202 0.0289
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -1,063 -100.00 0 -100.00
2022-08-09 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,063 1,063 173 0.0218
2019-07-19 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -1,076 -100.00 0 -100.00
2019-05-10 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,076 7 0.65 84 6.33 0.0144
2019-02-13 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,069 9 0.85 79 0.00 0.0163
2018-11-14 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,060 900 562.50 79 690.00 0.0134
2018-08-03 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 160 0 0.00 10 -9.09 0.0018
2018-04-20 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 160 0 0.00 11 10.00 0.0020
2018-02-02 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 160 160 10 0.0018
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.