Magnetar Financial’s Avidity Biosciences RNAM Stock Holding History

Magnetar Financial’s Portfolio RNAM Stock Details RNAM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-1,158,603	Closed	-$83.6M	–	1358
2025 Q4	$83.6M	Buy	+1,158,603	New	+$74.8M	0.82%	15
2025 Q1	–	Sell	-22,003	Closed	-$640K	–	909
2024 Q4	$640K	Buy	+22,003	New	+$920K	0.01%	331

Other funds holding RNAM

Corsicana & Co Corsicana, Texas $158M AUM

Magnetar Financial's RNAM Position: Q1 2026 in Review

Magnetar Financial sold out of Avidity Biosciences (RNAM) in Q1 2026, closing a stake of 1,158,603 shares — an estimated $83.6M sold.

Magnetar Financial first reported a position in RNAM in Q4 2024 and held it in 2 quarters. The position peaked at $83.6M in Q4 2025. 1 fund tracked by Wall St. Rank holds RNAM as of Q1 2026.

Magnetar Financial reported no remaining Avidity Biosciences position as of Q1 2026 after selling out during the quarter.
Magnetar Financial sold 1,158,603 Avidity Biosciences shares in Q1 2026, an estimated $83.6M.
Magnetar Financial first reported a position in Avidity Biosciences in Q4 2024 and held it in 2 quarters.
Magnetar Financial's Avidity Biosciences position peaked at $83.6M in Q4 2025.
1 fund tracked by Wall St. Rank held Avidity Biosciences as of Q1 2026.

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