Nantahala Capital Management’s Y-mAbs Therapeutics YMAB Stock Holding History

Nantahala Capital Management’s Portfolio YMAB Stock Details YMAB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-351,878	Closed	-$1.59M	–	179
2025 Q2	$1.59M	Buy	+351,878	New	+$1.58M	0.06%	127

Other funds holding YMAB

BIG

Brooklyn Investment Group Brooklyn, New York $3.2B AUM 26.32% 1-Year Est. Return

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Nantahala Capital Management's YMAB Position: Q3 2025 in Review

Nantahala Capital Management sold out of Y-mAbs Therapeutics (YMAB) in Q3 2025, closing a stake of 351,878 shares — an estimated $1.59M sold.

Nantahala Capital Management first reported a position in YMAB in Q2 2025 and held it in 1 quarter. The position peaked at $1.59M in Q2 2025. 2 funds tracked by Wall St. Rank hold YMAB as of Q3 2025.

Nantahala Capital Management reported no remaining Y-mAbs Therapeutics position as of Q3 2025 after selling out during the quarter.
Nantahala Capital Management sold 351,878 Y-mAbs Therapeutics shares in Q3 2025, an estimated $1.59M.
Nantahala Capital Management first reported a position in Y-mAbs Therapeutics in Q2 2025 and held it in 1 quarter.
Nantahala Capital Management's Y-mAbs Therapeutics position peaked at $1.59M in Q2 2025.
2 funds tracked by Wall St. Rank held Y-mAbs Therapeutics as of Q3 2025.

Based on Nantahala Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.