Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionVanguard Group Inc
Latest Disclosed Ownership25,553,064 shares
Ownership 11.84%
Vanguard Group Inc ownership in AJG / Arthur J. Gallagher & Co.

2024-02-13 - Vanguard Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 25,553,064 shares of Arthur J. Gallagher & Co. (MX:AJG). This represents 11.84 percent ownership of the company. In their previous filing dated 2023-02-09 , Vanguard Group Inc had reported owning 26,124,202 shares, indicating a decrease of -2.19 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2024-02-13 2024-02-13 13G/A 26,124,202 25,553,064 -2.19 11.84 -4.44
2023-02-09 2023-02-09 13G/A 24,314,580 26,124,202 7.44 12.39 5.63
2022-02-09 2022-02-09 13G/A 21,066,109 24,314,580 15.42 11.73 7.12
2021-02-10 2021-02-10 13G/A 21,387,625 21,066,109 -1.50 10.95 -4.45
2020-02-12 2020-02-12 13G/A 20,308,477 21,387,625 5.31 11.46 3.71
2019-02-11 2019-02-11 13G/A 18,710,585 20,308,477 8.54 11.05 6.87
2018-02-09 2018-02-09 13G/A 18,149,660 18,710,585 3.09 10.34 2.27
2017-07-10 2017-07-10 13G/A 17,002,774 18,149,660 6.75 10.11 5.86
2017-02-09 2017-02-09 13G/A 12,137,246 17,002,774 40.09 9.55 39.21
2016-02-10 2016-02-10 13G/A 12,137,246 6.86
2015-02-10 2015-02-10 13G/A 9,718,271 6.02
2014-02-11 2014-02-11 13G 7,305,441 5.55

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 31,390,446 217,136 0.70 8,123,534 -15.87 0.1178
2025-11-07 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 31,173,310 76,768 0.25 9,655,621 -3.00 0.1445
2025-08-11 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 31,096,542 685,278 2.25 9,954,625 -5.19 0.1611
2025-05-09 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 30,411,264 739,130 2.49 10,499,185 24.66 0.1898
2025-02-11 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 29,672,134 3,851,661 14.92 8,422,435 15.93 0.1467
2024-11-13 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 25,820,473 191,149 0.75 7,265,106 9.32 0.1301
2024-08-13 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 25,629,324 213,806 0.84 6,645,940 4.58 0.1277
2024-05-10 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 25,415,518 -137,932 -0.54 6,354,896 10.59 0.1259
2024-03-11 2023-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 25,553,450 37,320 0.15 5,746,460 -1.19 0.1255
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 25,553,450 37,320 5,746,460 0.1091
2023-12-18 2023-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 25,516,130 -32,148 -0.13 5,815,892 3.68 0.1429
2023-11-14 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 25,516,130 -32,148 5,815,892 0.1429
2023-08-14 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 25,548,278 137,522 0.54 5,609,635 15.39 0.1330
2023-07-14 2023-03-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 25,410,756 -713,446 -2.73 4,861,332 -1.30 0.1238
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 25,410,370 -713,832 4,861,258 0.1238
2023-02-10 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 26,124,202 340,524 1.32 4,925,457 11.57 0.1341
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 25,783,678 266,711 1.05 4,414,680 6.11 0.1298
2022-08-12 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 25,516,967 670,043 2.70 4,160,286 -4.10 0.1170
2022-05-13 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 24,846,924 532,344 2.19 4,338,274 5.16 0.1026
2022-02-14 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 24,314,580 172,288 0.71 4,125,456 14.96 0.0937
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 24,142,292 378,565 1.59 3,588,752 7.81 0.0891
2021-08-13 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 23,763,727 1,332,944 5.94 3,328,822 18.94 0.0828
2021-05-14 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 22,430,783 1,364,674 6.48 2,798,687 7.39 0.0757
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 21,066,109 -220,713 -1.04 2,606,088 15.96 0.0756
2020-11-16 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 21,286,822 -467,249 -2.15 2,247,462 5.97 0.0744
2020-08-14 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 21,754,071 -165,243 -0.75 2,120,804 18.70 0.0752
2020-05-15 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 21,919,314 531,689 2.49 1,786,643 -12.28 0.0761
2020-02-14 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 21,387,625 328,157 1.56 2,036,744 7.98 0.0695
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 21,059,468 409,284 1.98 1,886,297 4.29 0.0700
2019-08-14 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 20,650,184 63,734 0.31 1,808,749 12.50 0.0680
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 20,586,450 277,973 1.37 1,607,800 7.42 0.0631
2019-02-14 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 20,308,477 737,926 3.77 1,496,736 2.74 0.0672
2018-12-13 2018-09-30 13F/A-2 GALLAGHER ARTHUR J COM 363576109 19,570,551 259,584 1.34 1,456,832 15.56 0.0569
2018-11-23 2018-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 19,570,551 0 1,456,832 0.0569
2018-11-14 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 19,570,551 259,584 1,456,832
2018-08-14 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 19,310,967 377,343 1.99 1,260,620 -3.13 0.0527
2018-05-15 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 18,933,624 223,039 1.19 1,301,308 9.91 0.0569
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 18,710,585 275,533 1.49 1,184,006 4.35 0.0518
2017-11-14 2017-09-30 13F GALLAGHER ARTHUR J COM 363576109 18,435,052 285,392 1.57 1,134,677 9.20 0.0530
2017-08-24 2017-06-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 18,149,660 571,235 3.25 1,039,067 4.55 0.0512
2017-08-11 2017-06-30 13F GALLAGHER ARTHUR J COM 363576109 18,149,660 571,235 1,039,067
2017-05-12 2017-03-31 13F GALLAGHER ARTHUR J COM 363576109 17,578,425 575,651 3.39 993,885 12.50 0.0511
2017-02-14 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 17,002,774 615,823 3.76 883,465 5.98 0.0493
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 16,386,951 637,626 4.05 833,604 11.20 0.0490
2016-08-10 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 15,749,325 2,987,125 23.41 749,668 32.06 0.0466
2016-05-13 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 12,762,200 624,954 5.15 567,662 14.24 0.0368
2016-02-08 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 12,137,246 858,995 7.62 496,899 6.73 0.0334
2015-11-12 2015-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 11,278,251 214,269 1.94 465,566 -11.04 0.0198
2015-11-12 2015-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 11,278,251 214,269 465,566 0.0198
2015-11-12 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 21,981,138 814,175
2015-08-13 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 11,063,982 621,204 5.95 523,325 7.19 0.0354
2015-05-15 2015-03-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 10,442,778 724,507 7.46 488,200 6.70 0.0331
2015-05-14 2015-03-31 13F GALLAGHER ARTHUR J COM 363576109 10,442,778 488,200
2015-02-12 2014-12-31 13F GALLAGHER ARTHUR J COM 363576109 9,718,271 340,034 3.63 457,537 7.56 0.0330
2014-11-12 2014-09-30 13F GALLAGHER ARTHUR J COM 363576109 9,378,237 257,471 2.82 425,396 0.09 0.0332
2014-08-11 2014-06-30 13F GALLAGHER ARTHUR J COM 363576109 9,120,766 1,474,043 19.28 425,028 16.82 0.0335
2014-05-13 2014-03-31 13F GALLAGHER ARTHUR J COM 363576109 7,646,723 341,282 4.67 363,831 6.12 0.0306
2014-02-12 2013-12-31 13F GALLAGHER ARTHUR J COM 363576109 7,305,441 489,095 7.18 342,844 15.23 0.0301
2013-11-07 2013-09-30 13F GALLAGHER ARTHUR J COM 363576109 6,816,346 212,146 3.21 297,534 3.12 0.0291
2013-08-13 2013-06-30 13F GALLAGHER ARTHUR J COM 363576109 6,604,200 6,604,200 288,538 0.0303
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.