Jane Street’s Sonnet BioTherapeutics SONN Stock Holding History

Jane Street’s Portfolio SONN Stock Details SONN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-10,562	Closed	-$48.4K	–	12286
2025 Q3	$48.4K	Buy	+10,562	New	+$46.8K	﹤0.01%	10363
2022 Q2	–	Sell	-20	Closed	-$19K	–	10786
2022 Q1	$19K	Buy	+20	New	+$16.9K	﹤0.01%	9953
2021 Q2	–	Sell	-7	Closed	-$39K	–	10359
2021 Q1	$39K	Buy	+7	New	+$44.3K	﹤0.01%	8884
2019 Q4	–	Hold	0	–	-$11K	–	5697
2019 Q3	–	Hold	0	–	–	–	4969

Other funds holding SONN

FAM

Formidable Asset Management Cincinnati, Ohio $629M AUM 15.56% 1-Year Est. Return

Jane Street's SONN Position: Q4 2025 in Review

Jane Street sold out of Sonnet BioTherapeutics (SONN) in Q4 2025, closing a stake of 10,562 shares — an estimated $48.4K sold.

Jane Street first reported a position in SONN in Q1 2021 and held it in 3 quarters. The position peaked at $48.4K in Q3 2025. 1 fund tracked by Wall St. Rank holds SONN as of Q4 2025.

Jane Street reported no remaining Sonnet BioTherapeutics position as of Q4 2025 after selling out during the quarter.
Jane Street sold 10,562 Sonnet BioTherapeutics shares in Q4 2025, an estimated $48.4K.
Jane Street first reported a position in Sonnet BioTherapeutics in Q1 2021 and held it in 3 quarters.
Jane Street's Sonnet BioTherapeutics position peaked at $48.4K in Q3 2025.
1 fund tracked by Wall St. Rank held Sonnet BioTherapeutics as of Q4 2025.

Based on Jane Street's 13F filing for Q4 2025, filed 12 Feb 2026.