Jane Street’s Tourmaline Bio TRML Stock Holding History

Jane Street’s Portfolio TRML Stock Details TRML Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-10,800	Closed	-$517K	–	12402
2025 Q3	$517K	Buy	+10,800	New	+$300K	﹤0.01%	7792
2025 Q2	–	Sell	-10,000	Closed	-$152K	–	10910
2025 Q1	$152K	Buy	+10,000	New	+$160K	﹤0.01%	8614

Jane Street's TRML Position: Q4 2025 in Review

Jane Street sold out of Tourmaline Bio (TRML) in Q4 2025, closing a stake of 16,477 shares — an estimated $788K sold.

Jane Street first reported a position in TRML in Q1 2023 and held it in 6 quarters. The position peaked at $919K in Q1 2024. 0 funds tracked by Wall St. Rank hold TRML as of Q4 2025.

Jane Street reported no remaining Tourmaline Bio position as of Q4 2025 after selling out during the quarter.
Jane Street sold 16,477 Tourmaline Bio shares in Q4 2025, an estimated $788K.
Jane Street first reported a position in Tourmaline Bio in Q1 2023 and held it in 6 quarters.
Jane Street's Tourmaline Bio position peaked at $919K in Q1 2024.
0 funds tracked by Wall St. Rank held Tourmaline Bio as of Q4 2025.

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