Magnetar Financial’s Jefferies Financial Group JEF Stock Holding History

Magnetar Financial’s Portfolio JEF Stock Details JEF Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$304K	Sell	6,085 -19,548	-76%	-$1.01M	﹤0.01%	780
2026 Q1	$1.06M	Buy	25,633 +5,706	+29%	+$296K	0.01%	464
2025 Q4	$1.23M	Buy	+19,927	New	+$1.14M	0.01%	406
2025 Q3	–	Sell	-144,212	Closed	-$7.89M	–	1035
2025 Q2	$7.89M	Buy	+144,212	New	+$7.14M	0.04%	182
2023 Q3	–	Sell	-17,823	Closed	-$591K	–	516
2023 Q2	$591K	Buy	17,823 +10,097	+131%	+$315K	0.01%	325
2023 Q1	$245K	Buy	+7,726	New	+$279K	﹤0.01%	533
2022 Q1	–	Sell	-10,218	Closed	-$379K	–	1432
2021 Q4	$379K	Buy	+10,218	New	+$394K	﹤0.01%	1021
2021 Q3	–	Sell	-19,845	Closed	-$649K	–	1413
2021 Q2	$649K	Buy	+19,845	New	+$605K	0.01%	823
2018 Q4	–	Sell	-16,182	Closed	-$318K	–	401
2018 Q3	$318K	Buy	+16,182	New	+$337K	0.01%	307
2018 Q1	–	Sell	-10,738	Closed	-$255K	–	685
2017 Q4	$255K	Buy	10,738 +231	+2%	+$5.33K	﹤0.01%	555
2017 Q3	$237K	Buy	+10,507	New	+$235K	﹤0.01%	575

Other funds holding JEF

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

SMFG

Sumitomo Mitsui Financial Group Tokyo, Japan $5.27B AUM 2.94% 1-Year Est. Return

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

MMLI

Massachusetts Mutual Life Insurance Springfield, Massachusetts $2.38B AUM 57.6% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

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

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Magnetar Financial's JEF Position: Q2 2026 in Review

Magnetar Financial reduced its Jefferies Financial Group (JEF) stake by 76% in Q2 2026, selling an estimated $1.01M and leaving 6,085 shares worth $304K. The position accounts for ﹤0.01% of the portfolio, ranked #780.

Magnetar Financial first reported a position in JEF in Q3 2017 and has held it in 11 quarters since. The position peaked at $7.89M in Q2 2025. 590 funds tracked by Wall St. Rank hold JEF as of Q2 2026.

Magnetar Financial held 6,085 shares of Jefferies Financial Group worth $304K as of Q2 2026.
Magnetar Financial sold 19,548 Jefferies Financial Group shares in Q2 2026, an estimated $1.01M.
Jefferies Financial Group made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #780 holding.
Magnetar Financial first reported a position in Jefferies Financial Group in Q3 2017 and has held it in 11 quarters since.
Magnetar Financial's Jefferies Financial Group position peaked at $7.89M in Q2 2025.
590 funds tracked by Wall St. Rank held Jefferies Financial Group as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.