Siren LLC’s IGM Biosciences IGMS Stock Holding History

Siren LLC’s Portfolio IGMS Stock Details IGMS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-3,255,826	Closed	-$3.65M	–	121
2025 Q2	$3.65M	Hold	3,255,826	–	–	0.19%	73
2025 Q1	$3.74M	Sell	3,255,826 -74,596	-2%	-$139K	0.21%	68
2024 Q4	$20.3M	Hold	3,330,422	–	–	0.9%	31
2024 Q3	$55.1M	Buy	+3,330,422	New	+$36.5M	2.75%	10

Other funds holding IGMS

Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return

Siren LLC's IGMS Position: Q3 2025 in Review

Siren LLC sold out of IGM Biosciences (IGMS) in Q3 2025, closing a stake of 3,255,826 shares — an estimated $3.65M sold.

Siren LLC first reported a position in IGMS in Q3 2024 and held it in 4 quarters. The position peaked at $55.1M in Q3 2024. 1 fund tracked by Wall St. Rank holds IGMS as of Q3 2025.

Siren LLC reported no remaining IGM Biosciences position as of Q3 2025 after selling out during the quarter.
Siren LLC sold 3,255,826 IGM Biosciences shares in Q3 2025, an estimated $3.65M.
Siren LLC first reported a position in IGM Biosciences in Q3 2024 and held it in 4 quarters.
Siren LLC's IGM Biosciences position peaked at $55.1M in Q3 2024.
1 fund tracked by Wall St. Rank held IGM Biosciences as of Q3 2025.

Based on Siren LLC's 13F filing for Q3 2025, filed 13 Nov 2025.