Arthur J. Gallagher & Co.
US ˙ NYSE ˙ US3635761097

SecurityAJG / Arthur J. Gallagher & Co.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership7,104 shares
Latest Disclosed Value $ 2,171,764
Wolverine Trading, Llc ownership in AJG / Arthur J. Gallagher & Co.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 7,104 shares of Arthur J. Gallagher & Co. (US:AJG) valued at $2,200,393 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 8,000 shares of Arthur J. Gallagher & Co.. This represents a change in shares of -11.20% during the quarter. The current value of the position is $1,438,560 USD.

Wolverine Trading, Llc 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 61,400 of underlying shares valued at $18,770,594 USD and put options representing 4,500 of underlying shares valued at $1,375,695 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.

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)
2025-11-14 2025-09-30 13F GALLAGHER ARTHUR J COM 363576109 7,104 -896 -11.20 2,172 -14.56 0.0016
2025-08-18 2025-06-30 13F GALLAGHER ARTHUR J COM 363576109 8,000 8,000 2,542 0.0026
2024-11-14 2024-09-30 13F GALLAGHER ARTHUR J COM 363576109 0 -5,019 -100.00 0 -100.00
2024-08-14 2024-06-30 13F GALLAGHER ARTHUR J COM 363576109 5,019 5,019 1,301 0.0014
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM 363576109 0 -10,936 -100.00 0 -100.00
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM 363576109 10,936 7,751 243.36 2,459 239.17 0.0026
2023-11-15 2023-09-30 13F GALLAGHER ARTHUR J COM 363576109 3,185 914 40.25 726 48.87 0.0007
2023-08-23 2023-06-30 13F GALLAGHER ARTHUR J COM 363576109 2,271 2,271 488 0.0006
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM 363576109 0 -1,133 -100.00 0 -100.00
2023-02-14 2022-12-31 13F GALLAGHER ARTHUR J COM 363576109 1,133 -2,937 -72.16 214 -69.30 0.0003
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM 363576109 4,070 -106 -2.54 697 2.20 0.0011
2022-08-15 2022-06-30 13F GALLAGHER ARTHUR J COM 363576109 4,176 2,516 151.57 682 135.99 0.0011
2022-05-16 2022-03-31 13F GALLAGHER ARTHUR J COM 363576109 1,660 -1,664 -50.06 289 -48.48 0.0004
2022-02-14 2021-12-31 13F GALLAGHER ARTHUR J COM 363576109 3,324 -13,787 -80.57 561 -78.27 0.0007
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM 363576109 17,111 1,642 10.61 2,582 18.22 0.0029
2021-08-06 2021-06-30 13F GALLAGHER ARTHUR J COM 363576109 15,469 9,360 153.22 2,184 184.75 0.0034
2021-05-14 2021-03-31 13F GALLAGHER ARTHUR J COM 363576109 6,109 -4,252 -41.04 767 -39.18 0.0012
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM 363576109 10,361 7,109 218.60 1,261 269.79 0.0020
2020-11-13 2020-09-30 13F GALLAGHER ARTHUR J COM 363576109 3,252 -7,092 -68.56 341 -65.56 0.0008
2020-08-13 2020-06-30 13F GALLAGHER ARTHUR J COM 363576109 10,344 -2,636 -20.31 990 -8.33 0.0027
2020-05-11 2020-03-31 13F GALLAGHER ARTHUR J COM 363576109 12,980 -54,339 -80.72 1,080 -83.10 0.0033
2020-02-12 2019-12-31 13F GALLAGHER ARTHUR J COM 363576109 67,319 63,445 1,637.71 6,389 1,757.27 0.0156
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM 363576109 3,874 3,874 -94.25 344 -94.62 0.0010
2019-08-20 2019-06-30 13F GALLAGHER ARTHUR J COM 363576109 0 -4,474 -100.00 0 -100.00
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM 363576109 4,474 -831 -15.66 349 -9.35 0.0010
2019-02-13 2018-12-31 13F GALLAGHER ARTHUR J COM 363576109 5,305 5,305 18.57 385 10.32 0.0011
2018-05-15 2018-03-31 13F GALLAGHER ARTHUR J COM 363576109 0 -13,095 -100.00 0 -100.00
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM 363576109 13,095 3,766 40.37 829 76.76 0.0030
2016-11-14 2016-09-30 13F GALLAGHER ARTHUR J COM 363576109 9,329 9,329 469 0.0022
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
(%)
2025-11-14 2025-09-30 13F GALLAGHER ARTHUR J COM Call 61,400 52.36 18,771 46.59 n/a n/a n/a
2025-08-18 2025-06-30 13F GALLAGHER ARTHUR J COM Call 40,300 12,805 n/a n/a n/a
2025-05-15 2025-03-31 13F GALLAGHER ARTHUR J COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F GALLAGHER ARTHUR J COM Call 45,700 133.16 13,000 137.34 n/a n/a n/a
2024-11-14 2024-09-30 13F GALLAGHER ARTHUR J COM Call 19,600 -18.33 5,477 -11.99 n/a n/a n/a
2024-08-14 2024-06-30 13F GALLAGHER ARTHUR J COM Call 24,000 -17.81 6,223 -14.77 n/a n/a n/a
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM Call 29,200 207.37 7,301 241.81 n/a n/a n/a
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM Call 9,500 -43.79 2,136 -44.55 n/a n/a n/a
2023-11-15 2023-09-30 13F GALLAGHER ARTHUR J COM Call 16,900 -21.40 3,852 -16.53 n/a n/a n/a
2023-08-23 2023-06-30 13F GALLAGHER ARTHUR J COM Call 21,500 -37.13 4,615 76,816.67 n/a n/a n/a
2023-05-15 2023-03-31 13F GALLAGHER ARTHUR J COM Call 34,200 -1.16 6 -99.91 n/a n/a n/a
2023-02-14 2022-12-31 13F GALLAGHER ARTHUR J COM Call 34,600 70.44 6,523 87.77 n/a n/a n/a
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM Call 20,300 13.41 3,474 18.93 n/a n/a n/a
2022-08-15 2022-06-30 13F GALLAGHER ARTHUR J COM Call 17,900 265.31 2,921 242.84 n/a n/a n/a
2022-05-16 2022-03-31 13F GALLAGHER ARTHUR J COM Call 4,900 -43.02 852 -41.28 n/a n/a n/a
2022-02-14 2021-12-31 13F GALLAGHER ARTHUR J COM Call 8,600 30.30 1,451 45.68 n/a n/a n/a
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM Call 6,600 -57.96 996 -55.07 n/a n/a n/a
2021-08-06 2021-06-30 13F GALLAGHER ARTHUR J COM Call 15,700 582.61 2,217 667.13 n/a n/a n/a
2021-05-14 2021-03-31 13F GALLAGHER ARTHUR J COM Call 2,300 -36.11 289 -34.02 n/a n/a n/a
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM Call 3,600 -65.38 438 -59.82 n/a n/a n/a
2020-11-13 2020-09-30 13F GALLAGHER ARTHUR J COM Call 10,400 188.89 1,090 148.86 n/a n/a n/a
2020-05-11 2020-03-31 13F GALLAGHER ARTHUR J COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-12 2019-12-31 13F GALLAGHER ARTHUR J COM Call 2,800 -83.13 266 -81.95 n/a n/a n/a
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM Call 16,600 492.86 1,474 454.14 n/a n/a n/a
2019-08-20 2019-06-30 13F GALLAGHER ARTHUR J COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM Call 8,700 128.95 679 146.01 n/a n/a n/a
2019-02-13 2018-12-31 13F GALLAGHER ARTHUR J COM Call 3,800 -56.32 276 -59.35 n/a n/a n/a
2018-11-14 2018-09-30 13F GALLAGHER ARTHUR J COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-13 2018-06-30 13F GALLAGHER ARTHUR J COM Call 21,400 0.00 1,471 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F GALLAGHER ARTHUR J COM Call 21,400 0.00 1,471 0.00 n/a n/a n/a
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F GALLAGHER ARTHUR J COM Call 3,500 215 n/a n/a n/a
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
(%)
2025-11-14 2025-09-30 13F GALLAGHER ARTHUR J COM Put 4,500 -65.12 1,376 -66.45 n/a n/a n/a
2025-08-18 2025-06-30 13F GALLAGHER ARTHUR J COM Put 12,900 4,099 n/a n/a n/a
2025-05-15 2025-03-31 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F GALLAGHER ARTHUR J COM Put 12,000 122.22 3,414 126.18 n/a n/a n/a
2024-11-14 2024-09-30 13F GALLAGHER ARTHUR J COM Put 5,400 -46.53 1,509 -42.38 n/a n/a n/a
2024-08-14 2024-06-30 13F GALLAGHER ARTHUR J COM Put 10,100 29.49 2,619 34.31 n/a n/a n/a
2024-05-15 2024-03-31 13F GALLAGHER ARTHUR J COM Put 7,800 -24.27 1,950 -15.80 n/a n/a n/a
2024-02-14 2023-12-31 13F GALLAGHER ARTHUR J COM Put 10,300 267.86 2,316 263.01 n/a n/a n/a
2023-11-15 2023-09-30 13F GALLAGHER ARTHUR J COM Put 2,800 638 n/a n/a n/a
2023-02-14 2022-12-31 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F GALLAGHER ARTHUR J COM Put 1,400 -69.57 240 -68.04 n/a n/a n/a
2022-08-15 2022-06-30 13F GALLAGHER ARTHUR J COM Put 4,600 21.05 751 13.79 n/a n/a n/a
2022-05-16 2022-03-31 13F GALLAGHER ARTHUR J COM Put 3,800 -32.14 660 -30.16 n/a n/a n/a
2022-02-14 2021-12-31 13F GALLAGHER ARTHUR J COM Put 5,600 -75.86 945 -73.01 n/a n/a n/a
2021-11-12 2021-09-30 13F GALLAGHER ARTHUR J COM Put 23,200 82.68 3,501 95.26 n/a n/a n/a
2021-08-06 2021-06-30 13F GALLAGHER ARTHUR J COM Put 12,700 1,793 n/a n/a n/a
2021-02-12 2020-12-31 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F GALLAGHER ARTHUR J COM Put 9,200 -64.75 964 -61.39 n/a n/a n/a
2020-08-13 2020-06-30 13F GALLAGHER ARTHUR J COM Put 26,100 -9.06 2,497 4.56 n/a n/a n/a
2020-05-11 2020-03-31 13F GALLAGHER ARTHUR J COM Put 28,700 9.96 2,388 -4.37 n/a n/a n/a
2019-11-14 2019-09-30 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F GALLAGHER ARTHUR J COM Put 2,500 -10.71 219 0.00 n/a n/a n/a
2019-05-15 2019-03-31 13F GALLAGHER ARTHUR J COM Put 2,800 -72.00 219 -69.79 n/a n/a n/a
2019-02-13 2018-12-31 13F GALLAGHER ARTHUR J COM Put 10,000 257.14 725 231.05 n/a n/a n/a
2018-02-14 2017-12-31 13F GALLAGHER ARTHUR J COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F GALLAGHER ARTHUR J COM Put 9,800 12.64 603 21.57 n/a n/a n/a
2017-08-14 2017-06-30 13F GALLAGHER ARTHUR J COM Put 8,700 496 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.