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Arthur J. Gallagher & Co. 13F holders

1,297 funds reported a position in Arthur J. Gallagher & Co. in their 13F for the quarter ended 30 June 2026, together 238.7 million shares worth $54.73 billion. Against the quarter before, 127 opened a position, 452 added, 476 trimmed and 106 sold out; together they bought a net 1.5 million shares. The largest holders: BlackRock, Inc., FMR LLC and Vanguard Capital Management LLC.

Funds holding1,297+45 on Q1 2026
Shares they held238.7Mworth $54.73 billion
Net bought on the quarter1.5M sharesabout $340.3 million at the funds' values
Funds buying to selling579 to 582opened or added, to cut or sold
Opened 127Added 452Held 229Trimmed 476Sold out 106
Opened: 127 fundsAdded: 452 fundsHeld: 229 fundsTrimmed: 476 fundsSold out: 106 funds

What each fund did in AJG against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 1,203 funds, 192.6 million shares1,203Q3 2024Q4 2024: 1,327 funds, 232.7 million shares1,327Q4 2024Q1 2025: 1,363 funds, 230.5 million shares1,363Q1 2025Q2 2025: 1,382 funds, 228.9 million shares1,382Q2 2025Q3 2025: 1,345 funds, 246.1 million shares1,345Q3 2025Q4 2025: 1,303 funds, 238.7 million shares1,303Q4 2025Q1 2026: 1,252 funds, 229.7 million shares1,252Q1 2026Q2 2026: 1,297 funds, 238.7 million shares1,297Q2 2026

Funds reporting a position in AJG in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 696 reported a position in Arthur J. Gallagher & Co.: 45 opened one, 243 added, 225 trimmed and 49 sold out, a net 2.4 million shares bought.

FundChange in sharesShares nowStatusFiling
Bank of New York Mellon Corp+1,200,5952,461,579added13F
Cooke & Bieler LP-263,418506,205trimmed13F
DekaBank Deutsche Girozentrale+211,428321,067added13F
Assenagon Asset Management S.A.+208,759275,979added13F
Dimensional Fund Advisors LP+181,4301,007,455added13F
Nicholas Company, Inc.+173,705214,415added13F
Vestor Capital, LLC+276,845279,656added13F
Nippon Life Global Investors Americas, Inc.+141,110141,110new13F
Heffernan Advisory, Inc.+126,416126,416new13F
Geode Capital Management, LLC+107,4586,406,328added13F
Davidson Kahn Capital Management, LLC+100,200100,200new13F
Mawer Investment Management Ltd.-99,600410,425trimmed13F
Amundi+97,041896,516added13F
Allspring Global Investments Holdings, LLC+73,35284,714added13F
Deutsche Bank AG-55,942637,833trimmed13F
Fisher Funds Management LTD+55,531236,537added13F
Savant Capital, LLC+43,02291,617added13F
Retirement Systems of Alabama+42,159242,517added13F
Mitsubishi UFJ Asset Management Co., Ltd.+35,002660,020added13F
Talbot Financial, LLC-34,5006,890trimmed13F
Guinness Asset Management LTD-30,293821,055trimmed13F
Barclays PLC-28,573464,194trimmed13F
Citigroup Inc.-27,818344,394trimmed13F
Principal Financial Group Inc.-25,4353,469,361trimmed13F
Swiss Life Asset Management Ltd+25,10958,768added13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 1 reported a position in Arthur J. Gallagher & Co. in a 13F for the quarter ended 30 September 2026, and 9 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 18.6 million shares worth $4.28 billion, 0.2% of its reported book (its 13F for the quarter ended 30 June 2026). Sold out: Renaissance Technologies, Viking Global Investors. In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 107,458 shares, about $24.5 million at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC18,645,620$4.28 billion0.2%+4,024,657added30 June 2026, an earlier quarter13F
Dodge & Cox9,363,634$2.15 billion1.1%+2,008,719added30 June 2026, an earlier quarter13F
Norges Bank6,733,790$1.55 billion0.2%held30 June 2026, an earlier quarter13F
Geode Capital Management6,406,328$1.46 billion0.1%+107,458added30 September 202613F
Capital Research Global Investors2,585,853$593.6 million0.1%-394,278trimmed30 June 2026, an earlier quarter13F
Baillie Gifford184,065$42.3 million0.0%+50,635added30 June 2026, an earlier quarter13F
Millennium Management136,089$31.2 million0.0%-97,931trimmed30 June 2026, an earlier quarter13F
Citadel Advisors110,798$25.4 million0.0%-651,894trimmed30 June 2026, an earlier quarter13F
Alyeska105,400$24.2 million0.1%-64,185trimmed30 June 2026, an earlier quarter13F
Point72 Asset Management63,010$14.5 million0.0%+32,130added30 June 2026, an earlier quarter13F
Renaissance Technologies0$00.0%-76,600exited30 June 2026, an earlier quarter13F
Viking Global Investors0$00.0%-727,441exited30 June 2026, an earlier quarter13F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
BlackRock, Inc.19,822,8708.31%$4.55 billion0.07%+515,07413F
FMR LLC18,645,6207.81%$4.28 billion0.19%+4,024,65713F
Vanguard Capital Management LLC16,777,1837.03%$3.85 billion0.08%+77,28513F
JPMorgan Chase & Co.14,356,7646.02%$3.26 billion0.19%-5,211,28313F
Capital World Investors12,511,9915.24%$2.87 billion0.34%-1,305,72913F
Vanguard Portfolio Management LLC12,454,7255.22%$2.86 billion0.13%+35,44613F
State Street Corp.11,303,7904.74%$2.60 billion0.08%+329,86913F
Dodge & Cox9,363,6343.92%$2.15 billion1.12%+2,008,71913F
Norges Bank6,733,7902.82%$1.55 billion0.15%13F
Geode Capital Management, LLC6,298,8702.64%$1.45 billion0.08%+55,23013F
Eagle Capital Management LLC4,890,6122.05%$1.12 billion3.43%+2,225,04013F
Principal Financial Group Inc.3,494,7961.46%$802.3 million0.39%+252,70813F
Goldman Sachs Group Inc.2,818,0221.18%$646.9 million0.07%+864,75213F
Morgan Stanley2,591,8581.09%$595.0 million0.03%-1,464,31713F
Capital Research Global Investors2,585,8531.08%$593.6 million0.08%-394,27813F
WCM Investment Management, LLC2,425,5621.02%$550.9 million1.00%+63,04913F
Gtcr LLC2,373,7730.99%$544.9 million13.95%no change13F
Franklin Resources Inc.2,219,1410.93%$509.4 million0.11%+265,04113F
Northern Trust Corp.2,204,7330.92%$506.1 million0.06%-25,09613F
Charles Schwab Investment Management Inc.2,156,5060.90%$495.1 million0.07%+47,04313F
Capital International Investors2,002,5800.84%$459.5 million0.10%-594,07313F
Jupiter Topco LLC1,940,6630.81%$445.4 million0.18%first 13F13F
Manufacturers Life Insurance Company, the1,917,6150.80%$440.2 million0.34%+1,594,98113F
Invesco Ltd.1,750,8480.73%$401.9 million0.03%+35,03613F
Bank of America Corp.1,540,9970.65%$353.8 million0.02%-313,49113F
UBS AM, a distinct business unit of UBS Asset Management Americas LLC1,453,7740.61%$333.7 million0.06%+3,90513F
Vanguard Fiduciary Trust Co.1,442,4940.60%$331.2 million0.07%-5,33813F
First Pacific Advisors, LP1,336,2900.56%$306.8 million3.85%+948,60313F
Legal & General Group Plc1,306,2950.55%$299.9 million0.06%-67,13413F
Brave Warrior Advisors, LLC1,285,0220.54%$295.0 million6.43%new13F
Wellington Management Group LLP1,281,4750.54%$294.2 million0.05%-1,301,88413F
Bank of New York Mellon Corp1,260,9840.53%$289.5 million0.05%-26,47113F
Brown Advisory Inc.1,229,8980.52%$282.4 million0.44%-350,40913F
FIL Ltd1,125,9650.47%$258.5 million0.19%-83,65913F
T. Rowe Price Investment Management, Inc.1,117,1770.47%$256.5 million0.17%+130,59813F
UBS Group AG1,064,4980.45%$244.4 million0.04%+75,32413F
Beck Mack & Oliver LLC1,061,9050.44%$243.8 million4.75%-66113F
Brown Brothers Harriman & Co.1,000,9450.42%$229.8 million1.01%-30,69013F
Guinness Asset Management LTD851,3480.36%$194.7 million3.29%-50,55113F
Envestnet Asset Management Inc.833,2300.35%$191.3 million0.04%-144,11913F
Dimensional Fund Advisors LP826,0250.35%$189.6 million0.03%-27,16713F
Brandes Investment Partners, LP813,0140.34%$186.6 million1.31%+111,75413F
Amundi799,4750.33%$183.5 million0.04%-140,36013F
Adage Capital Partners GP, L.l.c.799,0030.33%$183.4 million0.26%+458,24013F
Focus Partners Wealth771,2250.32%$177.1 million0.18%-608,17213F
Cooke & Bieler LP769,6230.32%$176.7 million2.04%+146,99013F
CIBC Bancorp USA Inc.761,5280.32%$174.9 million0.22%+127,07713F
Nuveen, LLC725,8370.30%$166.6 million0.04%+10,71213F
Swiss National Bank725,0600.30%$166.5 million0.09%-28,60013F
Arrowstreet Capital, Limited Partnership716,4240.30%$164.5 million0.07%+687,24613F
The 50 largest of the 1,297 funds that reported a position in AJG in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on AJG

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls134,600$30.9 million30 June 202613F
Citadel AdvisorsPuts71,600$16.4 million30 June 202613F
Millennium ManagementPuts25,100$5.8 million30 June 202613F
Millennium ManagementCalls11,400$2.6 million30 June 202613F
Point72 Asset ManagementPuts4,100$941,23730 June 202613F
Point72 Asset ManagementCalls3,700$849,40930 June 202613F
Two Sigma InvestmentsPuts1,400$321,39830 June 202613F
Two Sigma InvestmentsCalls1,200$275,48430 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
12 August 202613G/ACapital World Investors and 1 other12.8 million5.0%30 June 2026passive, institutional (13d-1(b))EDGAR
6 August 202613G/AFMR LLC and 3 others18.6 million7.2%30 June 2026passive, institutional (13d-1(b))EDGAR
27 July 202613G/AJpmorgan Chase & Co. and 1 other14.2 million5.5%30 June 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other19.2 million7.5%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
13 February 202613GCapital World Investors and 1 other13.0 million5.0%31 December 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
26 August 20266,093$268.51SEC
24 August 20268,626$263.81SEC
20 August 20262,313$257.45SEC
19 August 2026413$248.36SEC
18 August 20267$247.97SEC
7 August 202631$251.74SEC
5 August 20267,425$248.06SEC
3 August 20261,095$249.42SEC
23 July 20261$242.50SEC
20 July 20264,944$253.90SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 8,626 on 24 August 2026. A fail is an operational fact about settlement, not a position.