Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionCigna Investments Inc /new
Latest Disclosed Ownership2,394 shares
Latest Disclosed Value $ 518
Cigna Investments Inc /new reports 3.89% decrease in ownership of AJG / Arthur J. Gallagher & Co.

On May 11, 2026 - Cigna Investments Inc /new filed a 13F-HR form disclosing ownership of 2,394 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $518 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 2,491 shares of Arthur J. Gallagher & Co..

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-11 2026-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,394 -97 -3.89 1 0.0797
2026-01-20 2025-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,491 0 0.00 1 0.0930
2025-10-22 2025-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,491 -40 -1.58 1 0.1086
2025-07-15 2025-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,531 28 1.12 1 0.1378
2025-05-15 2025-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,503 -24 -0.95 1 0.1605
2025-01-29 2024-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,527 290 12.96 1 0.1254
2024-10-28 2024-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,237 -22 -0.97 1 0.1108
2024-07-17 2024-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,259 -18 -0.79 1 0.1084
2024-04-23 2024-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,277 15 0.66 1 0.1071
2024-01-22 2023-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,262 0 0.00 1 0.1044
2023-10-23 2023-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,262 -255 -10.13 1 0.1176
2023-08-01 2023-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,517 -20 -0.79 1 0.1025
2023-05-11 2023-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,537 -42 -1.63 0 0.0966
2023-02-13 2022-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 2,579 0 0.00 0 0.1010
2022-11-14 2022-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,579 -119 -4.41 0 0.0975
2022-08-15 2022-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 2,698 -964 -26.32 0 0.0873
2022-05-13 2022-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 3,662 -1,048 -22.25 1 0.0784
2022-02-14 2021-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 4,710 -1,636 -25.78 1 0.0625
2021-11-12 2021-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 6,346 0 0.00 1 0.0704
2021-08-10 2021-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 6,346 -565 -8.18 1 0.0635
2021-05-10 2021-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 6,911 188 2.80 1 0.0592
2021-02-11 2020-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 6,723 540 8.73 1 0.0642
2020-11-12 2020-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 6,183 0 0.00 1 -100.00 0.0629
2020-08-17 2020-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 6,183 931 17.73 603 40.89 0.0570
2020-05-11 2020-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 5,252 410 8.47 428 -13.71 0.0551
2020-02-04 2019-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 4,842 -613 -11.24 496 -0.40 0.0525
2019-11-07 2019-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 5,455 -1,831 -25.13 498 -24.32 0.0514
2019-08-12 2019-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 7,286 -6,914 -48.69 658 -40.72 0.0714
2019-05-10 2019-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 14,200 -8,159 -36.49 1,110 -32.69 0.1228
2019-02-06 2018-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 22,359 -2,018 -8.28 1,649 -8.64 0.1398
2018-11-13 2018-09-30 13F ARTHUR J GALLAGHER Common Stock 363576109 24,377 -435 -1.75 1,805 11.42 0.1448
2018-08-14 2018-06-30 13F ARTHUR J GALLAGHER Common Stock 363576109 24,812 18,190 274.69 1,620 256.04 0.1171
2018-05-09 2018-03-31 13F ARTHUR J GALLAGHER Common Stock 363576109 6,622 0 0.00 455 8.33 0.0305
2018-01-26 2017-12-31 13F ARTHUR J GALLAGHER Common Stock 363576109 6,622 -200 -2.93 420 0.00 0.0274
2017-10-11 2017-09-30 13F ARTHUR J GALLAGHER COM 363576109 6,822 -170 -2.43 420 5.00 0.0280
2017-08-01 2017-06-30 13F ARTHUR J GALLAGHER & CO 363576109 COM 363576109 6,992 -300 -4.11 400 -2.91 0.0275
2017-05-15 2017-03-31 13F ARTHUR J GALLAGHER & CO 363576109 COM 363576109 7,292 879 13.71 412 23.72 0.0283
2017-02-15 2016-12-31 13F ARTHUR J GALLAGHER & CO 363576109 COM 363576109 6,413 6,413 333 0.0363
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.