Magnetar Financial’s Hanover Insurance THG Stock Holding History

Magnetar Financial’s Portfolio THG Stock Details THG Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$330K	Buy	+1,901	New	+$331K	﹤0.01%	743
2025 Q2	–	Sell	-1,706	Closed	-$297K	–	1141
2025 Q1	$297K	Buy	+1,706	New	+$276K	﹤0.01%	575
2020 Q4	–	Sell	-3,178	Closed	-$296K	–	887
2020 Q3	$296K	Buy	3,178 +758	+31%	+$75.3K	0.01%	538
2020 Q2	$245K	Sell	2,420 -9,817	-80%	-$963K	0.01%	367
2020 Q1	$1.11M	Buy	+12,237	New	+$1.51M	0.03%	160
2017 Q4	–	Sell	-12,368	Closed	-$1.2M	–	881
2017 Q3	$1.2M	Buy	+12,368	New	+$1.18M	0.02%	243

Other funds holding THG

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Magnetar Financial's THG Position: Q1 2026 in Review

Magnetar Financial opened a new position in Hanover Insurance (THG) in Q1 2026: 1,901 shares worth $330K. The stake represents ﹤0.01% of the portfolio and ranks #743 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in THG as recently as Q1 2025.

Magnetar Financial first reported a position in THG in Q3 2017 and has held it in 6 quarters since. The position peaked at $1.2M in Q3 2017. 502 funds tracked by Wall St. Rank hold THG as of Q1 2026.

Magnetar Financial held 1,901 shares of Hanover Insurance worth $330K as of Q1 2026.
Hanover Insurance was a new Magnetar Financial position in Q1 2026.
Hanover Insurance made up ﹤0.01% of Magnetar Financial's portfolio in Q1 2026, its #743 holding.
Magnetar Financial first reported a position in Hanover Insurance in Q3 2017 and has held it in 6 quarters since.
Magnetar Financial's Hanover Insurance position peaked at $1.2M in Q3 2017.
502 funds tracked by Wall St. Rank held Hanover Insurance as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.