WELLINGTON MANAGEMENT GROUP LLP

Position in AJG — Arthur J. Gallagher & Co.

CIK 902219 Boston, MA

Back to AJG Full portfolio

Position in AJG

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$559,503,889

-$208,062,848 QoQ

Shares Held

2,583,359

-12.9% QoQ

Ownership

1.01%

of shares outstanding

% of Portfolio

0.11%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 90.25164524171825.ToString("F0")% None 9.748354758281756.ToString("F0")%

Common Shares in AJG Over Time

Shares Held

Position Value (USD)

Position in Insurance Brokers

Financial Services · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $3,610,708,630 across 6 Insurance Brokers names. AJG ranks #2 (15.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRSH	Marsh & Mclennan Companies, Inc.	17,370,709	$3,012,949,472
2	AJG	Arthur J. Gallagher & Co. This page	2,583,359	$559,503,889
3	AON	Aon plc	91,374	$29,493,698
4	BRO	Brown & Brown, Inc.	93,263	$6,081,679
5	WTW	Willis Towers Watson PLC	6,729	$1,956,120
6	ERIE	Erie Indemnity Co	2,880	$723,772

All Filings in AJG

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$559,503,889	2,583,359	-12.9%	Shares	Defined	2026-05-15
2025-12-31	$767,566,737	2,965,983	-9.3%	Shares	Defined	2026-02-17
2025-09-30	$1,013,099,757	3,270,807	+13.7%	Shares	Defined	2025-11-14
2025-06-30	$920,506,015	2,875,503	-2.8%	Shares	Defined	2025-08-14
2025-03-31	$1,021,797,503	2,959,673	+4.9%	Shares	Defined	2025-05-13
2024-12-31	$801,115,245	2,822,319	+162.0%	Shares	Defined	2025-02-12
2024-09-30	$303,045,616	1,077,036	-8.7%	Shares	Defined	2024-11-14
2024-06-30	$305,988,649	1,180,011	-0.4%	Shares	Defined	2024-08-14
2024-03-31	$296,095,114	1,184,191	-10.9%	Shares	Defined	2024-05-15
2023-12-31	$298,767,919	1,328,566	-48.3%	Shares	Defined	2024-02-12
2023-09-30	$585,246,056	2,567,657	-6.5%	Shares	Defined	2023-11-14
2023-06-30	$602,942,508	2,746,015	+3.2%	Shares	Defined	2023-08-14
2023-03-31	$508,884,788	2,660,001	-7.9%	Shares	Defined	2023-05-12
2022-12-31	$544,370,405	2,887,294	-6.2%	Shares	Defined	2023-02-13
2022-09-30	$527,257,602	3,079,416	-11.4%	Shares	Defined	2022-11-14
2022-06-30	$566,836,925	3,476,674	+46.5%	Shares	Defined	2022-08-15
2022-03-31	$414,382,718	2,373,326	-0.1%	Shares	Defined	2022-05-16
2021-12-31	$403,140,499	2,376,027	-2.8%	Shares	Defined	2022-02-11
2021-09-30	$363,231,028	2,443,532	+0.8%	Shares	Defined	2021-11-15
2021-06-30	$339,614,150	2,424,430	+5.3%	Shares	Defined	2021-08-16
2021-03-31	$287,334,700	2,302,915	-0.7%	Shares	Defined	2021-05-17
2020-12-31	$286,941,134	2,319,466	+21.5%	Shares	Defined	2021-02-12
2020-09-30	$201,630,769	1,909,744	-3.6%	Shares	Defined	2020-11-16
2020-06-30	$193,093,174	1,980,646	-16.0%	Shares	Defined	2020-08-14
2020-03-31	$192,091,271	2,356,659	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.