Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionDeutsche Bank Ag\
Latest Disclosed Ownership755,049 shares
Latest Disclosed Value $ 163,528,512
Deutsche Bank Ag\ reports 11.37% increase in ownership of AJG / Arthur J. Gallagher & Co.

On May 6, 2026 - Deutsche Bank Ag\ filed a 13F-HR form disclosing ownership of 755,049 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $163,528,512 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 677,994 shares of Arthur J. Gallagher & Co.. This represents a change in shares of 11.37% 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)
2026-05-06 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 755,049 77,055 11.37 163,529 -6.80 0.0540
2026-02-11 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 677,994 -216,568 -24.21 175,458 -36.68 0.0571
2025-11-13 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 894,562 26,657 3.07 277,082 -0.27 0.0928
2025-08-12 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 867,905 342,226 65.10 277,834 53.09 0.1023
2025-05-09 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 525,679 34,928 7.12 181,485 30.28 0.0719
2025-06-30 2024-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 490,751 101,860 26.19 139,300 27.30 0.0545
2025-02-14 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 490,751 101,860 139,300 0.0544
2025-06-26 2024-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 388,891 -113,475 -22.59 109,422 -16.00 0.0445
2024-11-13 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 388,891 -113,475 109,422 0.0445
2025-06-12 2024-06-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 502,366 153,911 44.17 130,269 49.52 0.0588
2024-08-14 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 502,366 153,911 130,269 0.0588
2025-06-02 2024-03-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 348,455 -43,786 -11.16 87,128 -1.22 0.0404
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 348,455 -43,786 87,128 0.0404
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 392,241 87,917 28.89 88,207 27.17 0.0450
2023-11-24 2023-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 304,324 -35,904 -10.55 69,365 -7.15 0.0448
2023-11-09 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 304,324 -35,904 69,365 0.0384
2023-08-14 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 340,228 -176,931 -34.21 74,704 -24.49 0.0397
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 517,159 -130,634 -20.17 98,938 -18.99 0.0551
2023-02-13 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 647,793 72,842 12.67 122,135 24.07 0.0703
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 574,951 -38,919 -6.34 98,443 -1.64 0.0594
2022-08-11 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 613,870 -27,423 -4.28 100,087 -10.61 0.0559
2022-05-13 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 641,293 -46,511 -6.76 111,969 -4.05 0.0522
2022-02-16 2021-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 687,804 189,958 38.16 116,700 57.69 0.0525
2022-02-11 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 687,804 189,958 116,700 0.0058
2021-11-04 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 497,846 -398,740 -44.47 74,005 -41.08 0.0351
2021-08-11 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 896,586 202,551 29.18 125,593 45.03 0.0610
2021-05-13 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 694,035 65,427 10.41 86,595 11.35 0.0466
2021-02-16 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 628,608 -14,155 -2.20 77,765 14.59 0.0475
2020-11-12 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 642,763 117,651 22.40 67,863 32.56 0.0467
2020-08-13 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 525,112 276,020 110.81 51,193 152.15 0.0389
2020-05-14 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 249,092 -103,654 -29.38 20,303 -39.55 0.0181
2020-02-14 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 352,746 27,462 8.44 33,587 15.30 0.0219
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 325,284 -198,132 -37.85 29,130 -36.46 0.0202
2019-08-14 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 523,416 -166,419 -24.12 45,842 -14.90 0.0269
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 689,835 239,492 53.18 53,871 62.34 0.0321
2019-04-01 2018-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 450,343 -94,280 -17.31 33,185 -18.14 0.0235
2019-02-14 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 450,343 93,778 33,185
2021-12-21 2018-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 544,623 -113,957 -17.30 40,540 -5.71 0.0205
2018-11-14 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 356,565 -302,015 26,539 0.0183
2020-04-21 2018-06-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 658,580 -79,285 -10.75 42,993 -15.22 0.0214
2018-08-14 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 452,600 -285,265 29,543 19,622.3870
2019-10-23 2018-03-31 13F/A-2 GALLAGHER ARTHUR J COM 363576109 737,865 -67,742 -8.41 50,710 -0.52 0.0242
2019-10-18 2018-03-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 737,865 0 50,710 0.0242
2018-05-15 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 588,700 -216,907 40,458
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 805,607 99,231 14.05 50,975 17.25 0.0327
2017-11-14 2017-09-30 13F GALLAGHER ARTHUR J COM 363576109 706,376 110,796 18.60 43,475 27.52 0.0298
2017-08-11 2017-06-30 13F GALLAGHER ARTHUR J COM 363576109 595,580 -225,918 -27.50 34,094 -26.59 0.0243
2017-05-15 2017-03-31 13F GALLAGHER ARTHUR J COM 363576109 821,498 -90,594 -9.93 46,445 -1.99 0.0343
2017-02-14 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 912,092 -263,343 -22.40 47,390 -20.74 0.0381
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,175,435 91,399 8.43 59,793 15.88 0.0423
2016-08-15 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,084,036 117,800 12.19 51,598 20.06 0.0364
2016-05-16 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 966,236 -176,746 -15.46 42,976 -8.16 0.0324
2016-02-16 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,142,982 -67,822 -5.60 46,792 -6.38 0.0324
2015-11-17 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 1,210,804 476,986 65.00 49,980 44.00 0.0386
2015-08-12 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 733,818 -84,941 -10.37 34,708 -9.32 0.0222
2015-05-15 2015-03-31 13F GALLAGHER ARTHUR J COM 363576109 818,759 -97,680 -10.66 38,275 -11.29 0.0238
2015-02-13 2014-12-31 13F GALLAGHER ARTHUR J COM 363576109 916,439 77,482 9.24 43,144 13.38 0.0266
2014-11-14 2014-09-30 13F GALLAGHER ARTHUR J COM 363576109 838,957 -168,041 -16.69 38,054 -18.90 0.0236
2014-08-15 2014-06-30 13F GALLAGHER ARTHUR J COM 363576109 1,006,998 311,984 44.89 46,924 41.91 0.0319
2014-05-15 2014-03-31 13F GALLAGHER ARTHUR J COM 363576109 695,014 -7,242 -1.03 33,067 0.34 0.0235
2014-02-24 2013-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 702,256 -187,820 -21.10 32,956 -15.17 0.0237
2014-02-18 2013-12-31 13F GALLAGHER ARTHUR J COM 363576109 702,256 32,956
2013-11-18 2013-09-30 13F GALLAGHER ARTHUR J COM 363576109 890,076 107,124 13.68 38,851 13.58 0.0287
2013-08-16 2013-06-30 13F GALLAGHER ARTHUR J COM 036357610 782,952 782,952 34,205 0.0280
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.