Arthur J. Gallagher & Co.
US ˙ NYSE ˙ US3635761097

SecurityAJG / Arthur J. Gallagher & Co.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership1,954,100 shares
Latest Disclosed Value $ 423,218,980
Franklin Resources Inc reports 400.65% increase in ownership of AJG / Arthur J. Gallagher & Co.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 1,954,100 shares of Arthur J. Gallagher & Co. (US:AJG) valued at $423,218,978 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 390,311 shares of Arthur J. Gallagher & Co.. This represents a change in shares of 400.65% during the quarter. The current value of the position is $395,705,250 USD.

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)
2026-05-13 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,954,100 1,563,789 400.65 423,219 318.99 0.0168
2026-02-11 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 390,311 -35,738 -8.39 101,009 -23.46 0.0248
2025-11-13 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 426,049 68,551 19.18 131,964 15.31 0.0329
2025-08-12 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 357,498 -170,691 -32.32 114,442 -37.24 0.0303
2025-05-13 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 528,189 1,328 0.25 182,352 21.93 0.0525
2025-02-12 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 526,861 3,537 0.68 149,549 -1.36 0.0415
2024-11-27 2024-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 523,324 7,368 1.43 151,612 13.32 0.0426
2024-11-12 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 523,324 7,368 151,612 0.0073
2024-08-14 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 515,956 1,993 0.39 133,793 4.11 0.0411
2024-05-13 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 513,963 -21,886 -4.08 128,511 6.65 0.0407
2024-02-09 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 535,849 73,076 15.79 120,502 14.24 0.0563
2023-11-13 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 462,773 160,345 53.02 105,480 58.84 0.0536
2023-08-11 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 302,428 13,379 4.63 66,404 20.09 0.0316
2023-05-12 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 289,049 -19,062 -6.19 55,298 -4.81 0.0277
2023-02-10 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 308,111 108,611 54.44 58,091 70.07 0.0302
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 199,500 -12,717 -5.99 34,158 -1.28 0.0186
2022-08-11 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 212,217 27,274 14.75 34,600 7.15 0.0172
2022-05-13 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 184,943 -14,622 -7.33 32,291 -4.64 0.0129
2022-02-11 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 199,565 -20,880 -9.47 33,861 3.43 0.0122
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 220,445 16,573 8.13 32,737 14.60 0.0123
2021-08-13 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 203,872 -3,445 -1.66 28,567 10.51 0.0109
2021-05-13 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 207,317 -13,578 -6.15 25,850 -5.35 0.0105
2021-02-10 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 220,895 -41,503 -15.82 27,312 -1.43 0.0116
2020-11-12 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 262,398 -19,111 -6.79 27,707 -5.60 0.0134
2020-08-13 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 281,509 -4,271 -1.49 29,351 26.01 0.0151
2020-05-13 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 285,780 -26,198 -8.40 23,293 -21.60 0.0155
2020-03-11 2019-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 311,978 -14,267 -4.37 29,710 1.67 0.0156
2020-02-12 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 311,978 -14,267 29,710 3,752.7798
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 326,245 -29,568 -8.31 29,222 -6.23 0.0159
2019-08-14 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 355,813 -865,944 -70.88 31,165 -67.34 0.0166
2019-05-15 2019-03-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 1,221,757 -452,907 -27.04 95,419 -22.69 0.0511
2019-05-14 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,221,757 -452,907 95,419
2019-02-12 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,674,664 -211,446 -11.21 123,423 -12.09 0.0745
2018-11-13 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,886,110 -239,180 -11.25 140,402 1.20 0.0699
2018-08-14 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 2,125,290 -27,695 -1.29 138,739 -6.24 0.0712
2018-05-10 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 2,152,985 -354,925 -14.15 147,974 -6.76 0.0750
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 2,507,910 -213,628 -7.85 158,700 -5.26 0.0762
2017-11-13 2017-09-30 13F GALLAGHER ARTHUR J COM 363576109 2,721,538 -634,661 -18.91 167,510 -12.82 0.0821
2017-08-10 2017-06-30 13F GALLAGHER ARTHUR J COM 363576109 3,356,199 -406,954 -10.81 192,143 -9.69 0.0958
2017-05-12 2017-03-31 13F GALLAGHER ARTHUR J COM 363576109 3,763,153 -178,670 -4.53 212,768 3.88 0.1080
2017-02-14 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 3,941,823 -88,393 -2.19 204,817 -0.10 0.1060
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 4,030,216 78,040 1.97 205,017 8.98 0.1072
2016-08-11 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 3,952,176 7,112 0.18 188,124 7.21 0.1012
2016-05-10 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 3,945,064 -6,389 -0.16 175,477 8.47 0.0931
2016-04-27 2015-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 3,951,453 -35,265 -0.88 161,772 -1.70 0.0819
2016-02-12 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 3,951,453 161,772
2015-11-10 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 3,986,718 87,495 2.24 164,570 -10.77 0.0813
2015-08-12 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 3,899,223 1,512,738 63.39 184,433 65.31 0.0837
2015-05-14 2015-03-31 13F GALLAGHER ARTHUR J COM 363576109 2,386,485 1,795 0.08 111,568 -0.63 0.0506
2015-02-10 2014-12-31 13F GALLAGHER ARTHUR J COM 363576109 2,384,690 -40,000 -1.65 112,271 2.08 0.0509
2014-11-12 2014-09-30 13F GALLAGHER ARTHUR J COM 363576109 2,424,690 0 0.00 109,984 -2.66 0.0502
2014-08-12 2014-06-30 13F GALLAGHER ARTHUR J COM 363576109 2,424,690 -22,900 -0.94 112,990 -2.98 0.0498
2014-05-13 2014-03-31 13F GALLAGHER ARTHUR J COM 363576109 2,447,590 -7,588 -0.31 116,456 1.07 0.0550
2014-02-12 2013-12-31 13F GALLAGHER ARTHUR J COM 363576109 2,455,178 -9,000 -0.37 115,222 7.12 0.0563
2013-11-14 2013-09-30 13F GALLAGHER ARTHUR J COM 363576109 2,464,178 -10,912 -0.44 107,561 -0.53 0.0572
2013-08-09 2013-06-30 13F GALLAGHER ARTHUR J COM 363576109 2,475,090 2,475,090 108,137 0.0617
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.