Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership459,478 shares
Latest Disclosed Value $ 99,657,252
Hsbc Holdings Plc ownership in AJG / Arthur J. Gallagher & Co.

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 459,478 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $99,657,252 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 533,477 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -13.87% during the quarter.

Hsbc Holdings Plc has a history of taking positions in derivatives of the underlying security (AJG) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AJG / Arthur J. Gallagher & Co. Historical Put/Call Ratio
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)
2026-04-30 2026-03-31 13F GALLAGHER ARTHUR J COM 363576109 459,478 -73,999 -13.87 99,657 -28.03 0.0069
2026-03-20 2025-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 533,477 -26,404 -4.72 138,470 -19.95 0.0076
2026-03-06 2025-12-31 13F GALLAGHER ARTHUR J COM 363576109 533,477 -26,404 -4.72 138,470 -19.95 0.0063
2025-11-13 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 559,881 -12,928 -2.26 172,975 -5.39 0.0954
2025-08-13 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 572,809 15,585 2.80 182,827 -4.77 0.1098
2025-05-14 2025-03-31 13F GALLAGHER ARTHUR J COM 363576109 557,224 37,787 7.27 191,980 30.14 0.1186
2025-02-14 2024-12-31 13F GALLAGHER ARTHUR J COM 363576109 519,437 -124,566 -19.34 147,514 -18.36 0.0858
2024-11-14 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 644,003 206,561 47.22 180,683 59.22 0.1052
2024-08-12 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 437,442 111,685 34.28 113,478 39.37 0.0694
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 325,757 -44,841 -12.10 81,425 -2.22 0.0551
2024-02-12 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 370,598 5,300 1.45 83,274 0.00 0.0726
2023-11-13 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 365,298 32,907 9.90 83,275 14.06 0.0867
2023-08-11 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 332,391 61,118 22.53 73,014 40.96 0.0743
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 271,273 21,323 8.53 51,798 10.14 0.0620
2023-02-14 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 249,950 86,498 52.92 47,027 67.35 0.0541
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 163,452 -28,465 -14.83 28,101 -10.55 0.0458
2022-08-11 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 191,917 21,874 12.86 31,415 6.00 0.0439
2022-05-16 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 170,043 -2,500 -1.45 29,636 1.46 0.0360
2022-02-11 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 172,543 -86,781 -33.46 29,209 -24.89 0.0270
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 259,324 9,870 3.96 38,889 11.23 0.0392
2021-08-13 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 249,454 33,955 15.76 34,963 29.46 0.0373
2021-05-14 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 215,499 -38,984 -15.32 27,007 -13.30 0.0318
2021-02-25 2020-12-31 13F/A-1 GALLAGHER ARTHUR J COM 363576109 254,483 19,395 8.25 31,151 25.40 0.0415
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 166,152 -68,936 20,348 4,831.3631
2020-11-12 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 235,088 42,769 22.24 24,842 32.49 0.0396
2020-08-14 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 192,319 -18,309 -8.69 18,750 8.53 0.0356
2020-05-15 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 210,628 -96,240 -31.36 17,277 -40.97 0.0401
2020-02-14 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 306,868 59,738 24.17 29,266 32.22 0.0508
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 247,130 -32,736 -11.70 22,134 -9.71 0.0413
2019-08-13 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 279,866 -7,512 -2.61 24,515 9.22 0.0465
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 287,378 -27,864 -8.84 22,445 -3.11 0.0410
2019-02-13 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 315,242 -56,244 -15.14 23,165 -16.18 0.0428
2018-11-13 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 371,486 40,483 12.23 27,636 27.99 0.0445
2018-08-10 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 331,003 72,872 28.23 21,593 21.63 0.0384
2018-05-11 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 258,131 67,390 35.33 17,753 47.18 0.0264
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 190,741 -9,999 -4.98 12,062 -2.32 0.0175
2017-11-14 2017-09-30 13F GALLAGHER ARTHUR J COM 363576109 200,740 50,173 33.32 12,348 43.20 0.0198
2017-08-14 2017-06-30 13F GALLAGHER ARTHUR J COM 363576109 150,567 -85,545 -36.23 8,623 -35.79 0.0159
2017-05-15 2017-03-31 13F GALLAGHER ARTHUR J COM 363576109 236,112 19,172 8.84 13,430 19.16 0.0281
2017-02-09 2016-12-31 13F GALLAGHER ARTHUR J COM 363576109 216,940 88,966 69.52 11,271 73.32 0.0263
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 127,974 -3,387 -2.58 6,503 3.98 0.0162
2016-08-12 2016-06-30 13F GALLAGHER ARTHUR J COM 363576109 131,361 36,549 38.55 6,254 48.27 0.0172
2016-05-13 2016-03-31 13F GALLAGHER ARTHUR J COM 363576109 94,812 -161 -0.17 4,218 8.15 0.0119
2016-02-12 2015-12-31 13F GALLAGHER ARTHUR J COM 363576109 94,973 -12,408 -11.56 3,900 -12.10 0.0094
2015-11-12 2015-09-30 13F GALLAGHER ARTHUR J COM 363576109 107,381 30,296 39.30 4,437 21.73 0.0112
2015-08-13 2015-06-30 13F GALLAGHER ARTHUR J COM 363576109 77,085 40,752 112.16 3,645 114.66 0.0074
2015-05-14 2015-03-31 13F GALLAGHER ARTHUR J COM 363576109 36,333 10,919 42.96 1,698 41.85 0.0033
2015-02-13 2014-12-31 13F GALLAGHER ARTHUR J COM 363576109 25,414 3,235 14.59 1,197 18.87 0.0025
2014-11-18 2014-09-30 13F GALLAGHER ARTHUR J COM 363576109 22,179 16,876 318.23 1,007 299.60 0.0021
2014-05-14 2014-03-31 13F GALLAGHER ARTHUR J & COM 363576109 5,303 -549 -9.38 252 4.13 0.0006
2013-10-10 2013-03-31 13F/A-1 GALLAGHER ARTHUR J & COM 363576109 5,852 -2,600 -30.76 242 -20.13 0.0009
2013-05-22 2013-03-31 13F GALLAGHER ARTHUR J & COM 363576109 6,542 271
2013-06-21 2012-09-30 13F/A-1 GALLAGHER ARTHUR J COM 363576109 8,452 303 0.0012
2013-10-11 2012-09-30 13F/A-2 GALLAGHER ARTHUR J & COM 363576109 8,452 8,452 303 0.0012
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-05-14 2021-03-31 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM Put 88,331 10,803 n/a n/a n/a
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.