Magnetar Financial’s Janus Henderson JHG Stock Holding History

Magnetar Financial’s Portfolio JHG Stock Details JHG Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-10,108	Closed	-$450K	–	1076
2025 Q3	$450K	Sell	10,108 -3,647	-27%	-$158K	﹤0.01%	607
2025 Q2	$534K	Sell	13,755 -148,978	-92%	-$5.25M	﹤0.01%	539
2025 Q1	$5.88M	Buy	+162,733	New	+$6.71M	0.08%	164
2024 Q4	–	Sell	-7,308	Closed	-$278K	–	706
2024 Q3	$278K	Buy	+7,308	New	+$264K	0.01%	414
2021 Q2	–	Sell	-8,540	Closed	-$266K	–	1291
2021 Q1	$266K	Buy	+8,540	New	+$269K	﹤0.01%	939

Other funds holding JHG

TFM

Trian Fund Management New York $4.23B AUM 31.93% 1-Year Est. Return

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Magnetar Financial's JHG Position: Q4 2025 in Review

Magnetar Financial sold out of Janus Henderson (JHG) in Q4 2025, closing a stake of 10,108 shares — an estimated $450K sold.

Magnetar Financial first reported a position in JHG in Q1 2021 and held it in 5 quarters. The position peaked at $5.88M in Q1 2025. 468 funds tracked by Wall St. Rank hold JHG as of Q4 2025.

Magnetar Financial reported no remaining Janus Henderson position as of Q4 2025 after selling out during the quarter.
Magnetar Financial sold 10,108 Janus Henderson shares in Q4 2025, an estimated $450K.
Magnetar Financial first reported a position in Janus Henderson in Q1 2021 and held it in 5 quarters.
Magnetar Financial's Janus Henderson position peaked at $5.88M in Q1 2025.
468 funds tracked by Wall St. Rank held Janus Henderson as of Q4 2025.

Based on Magnetar Financial's 13F filing for Q4 2025, filed 17 Feb 2026.