Arthur J. Gallagher & Co.
MX ˙ BMV ˙ US3635761097
SecurityMX:AJG / Arthur J. Gallagher & Co.
InstitutionHrt Financial Lp
Latest Disclosed Ownership19,800 shares
Latest Disclosed Value $ 4,288
Hrt Financial Lp ownership in AJG / Arthur J. Gallagher & Co.

On May 14, 2026 - Hrt Financial Lp filed a 13F-HR form disclosing ownership of 19,800 shares of Arthur J. Gallagher & Co. (MX:AJG) valued at $4,288 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 19,800 shares of Arthur J. Gallagher & Co.. This represents a change in shares of 0.00% during the quarter.

Hrt Financial Lp has a history of taking positions in derivatives of the underlying security (AJG) in the form of stock options. The firm currently holds call options representing 19,800 of underlying shares valued at $4,288 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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)
2026-05-14 2026-03-31 13F GALLAGHER ARTHUR J CALL 363576909 19,800 0 0.00 4 -20.00 0.0107
2026-02-12 2025-12-31 13F GALLAGHER ARTHUR J CALL 363576909 19,800 19,800 5 0.0162
2025-11-14 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -104,807 -100.00 0 -100.00
2025-08-14 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 104,807 104,807 34 0.1477
2024-08-12 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -8,588 -100.00 0 -100.00
2024-05-13 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 8,588 8,588 2 0.0132
2023-08-11 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -83,217 -100.00 0 -100.00
2023-05-12 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 83,217 83,217 16 0.1943
2022-08-12 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -1,694 -100.00 0 -100.00
2022-05-16 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,694 1,694 295 0.0021
2021-11-15 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -9,117 -100.00 0 -100.00
2021-08-16 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 9,117 9,117 1,277 0.0117
2021-02-16 2020-12-31 13F GALLAGHER ARTHUR J OM 363576109 0 -9,187 -100.00 0 -100.00
2020-11-13 2020-09-30 13F GALLAGHER ARTHUR J OM 363576109 9,187 9,187 969 0.0281
2019-08-14 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -79,205 -100.00 0 -100.00
2019-05-14 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 79,205 79,205 6,185 0.9590
2018-11-15 2018-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -3,197 -100.00 0 -100.00
2018-08-15 2018-06-30 13F GALLAGHER ARTHUR J COM 363576109 3,197 3,197 208 0.0871
Disclosed Call 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
(%)
2026-05-14 2026-03-31 13F GALLAGHER ARTHUR J CALL 19,800 0.00 4 -20.00 n/a n/a n/a
2026-02-12 2025-12-31 13F GALLAGHER ARTHUR J CALL 19,800 5 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.