Granahan Investment Management’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Granahan Investment Management’s Portfolio MRX Stock Details MRX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$76.4M	Buy	1,254,283 +30,533	+2%	+$1.68M	2.72%	7
2026 Q1	$54.6M	Sell	1,223,750 -153,243	-11%	-$6.05M	2.64%	8
2025 Q4	$52.8M	Buy	1,376,993 +322,039	+31%	+$11M	2.26%	10
2025 Q3	$35.5M	Sell	1,054,954 -1,022,199	-49%	-$36.9M	1.45%	22
2025 Q2	$82M	Sell	2,077,153 -39,907	-2%	-$1.66M	3.34%	5
2025 Q1	$74.8M	Sell	2,117,060 -73,544	-3%	-$2.56M	3.72%	3
2024 Q4	$68.3M	Buy	2,190,604 +957,492	+78%	+$26.8M	2.85%	5
2024 Q3	$29.1M	Sell	1,233,112 -40,465	-3%	-$903K	1.15%	20
2024 Q2	$25.5M	Buy	+1,273,577	New	+$25M	1.02%	26

Other funds holding MRX

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Loomis, Sayles & Company Boston, Massachusetts $79.8B AUM 16.05% 1-Year Est. Return

Samlyn Capital New York $6.14B AUM 42.05% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

OAM

Ophir Asset Management Sydney, Australia $1.22B AUM 100.03% 1-Year Est. Return

Granahan Investment Management's MRX Position: Q2 2026 in Review

Granahan Investment Management increased its Marex Group Limited Ordinary Shares (MRX) stake by 2.5% in Q2 2026, buying an estimated $1.68M and bringing the position to 1,254,283 shares worth $76.4M. The position accounts for 2.72% of the portfolio, ranked #7.

Granahan Investment Management first reported a position in MRX in Q2 2024 and has held it in 9 quarters since. The position peaked at $82M in Q2 2025. 221 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

Granahan Investment Management held 1,254,283 shares of Marex Group Limited Ordinary Shares worth $76.4M as of Q2 2026.
Granahan Investment Management bought 30,533 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $1.68M.
Marex Group Limited Ordinary Shares made up 2.72% of Granahan Investment Management's portfolio in Q2 2026, its #7 holding.
Granahan Investment Management first reported a position in Marex Group Limited Ordinary Shares in Q2 2024 and has held it in 9 quarters since.
Granahan Investment Management's Marex Group Limited Ordinary Shares position peaked at $82M in Q2 2025.
221 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Granahan Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.