MARSHALL WACE, LLP

Position in MRSH — Marsh & Mclennan Companies, Inc.

CIK 1318757 LONDON, X0

Position in MRSH

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

Position Value

$104,946,441

+$85,942,701 QoQ

Shares Held

605,053

+490.7% QoQ

Ownership

0.126%

of shares outstanding

% of Portfolio

0.15%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Financial Services · as of Mar 31, 2026

MARSHALL WACE, LLP holds $229,609,216 across 9 Insurance Brokers names. MRSH ranks #1 (45.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRSH	Marsh & Mclennan Companies, Inc. This page	605,053	$104,946,441
2	AJG	Arthur J. Gallagher & Co.	276,420	$59,867,042
3	ARX	Accelerant Holdings	2,274,152	$30,382,670
4	BRO	Brown & Brown, Inc.	246,349	$16,064,417
5	CRVL	Corvel Corp	163,963	$8,960,577
6	TWFG	TWFG, Inc.	266,828	$4,906,966
7	GSHD	Goosehead Insurance, Inc.	52,536	$2,241,185
8	NP	Neptune Insurance Holdings Inc.	91,927	$2,223,714

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$104,946,441	605,053	+490.7%	Shares	Other	2026-05-15
2025-12-31	$19,003,740	102,435	+815.6%	Shares	Other	2026-02-13
2024-12-31	$2,376,443	11,188	-88.7%	Shares	Other	2025-02-13
2024-06-30	$20,882,352	99,100	+437.9%	Shares	Other	2024-08-14
2022-12-31	$3,048,472	18,422	-90.8%	Shares	Other	2023-02-14
2022-09-30	$29,843,966	199,906	+1293.9%	Shares	Other	2022-11-14
2021-12-31	$2,492,752	14,341	-92.0%	Shares	Other	2022-02-14
2020-12-31	$20,943,702	179,006	+1222.2%	Shares	Sole	2021-02-16
2020-09-30	$1,552,808	13,538	-86.3%	Shares	Sole	2020-11-16
2020-06-30	$10,631,777	99,020	+719.6%	Shares	Sole	2020-08-13
2020-03-31	$1,044,609	12,082	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.