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	-16,477	Closed	-$788K	–	12403
2025 Q3	$788K	Buy	+16,477	New	+$457K	﹤0.01%	6838
2025 Q1	–	Sell	-17,887	Closed	-$287K	–	10624
2024 Q4	$363K	Sell	17,887 -3,818	-18%	-$96.1K	﹤0.01%	7406
2024 Q3	$558K	Buy	+21,705	New	+$362K	﹤0.01%	7000
2024 Q2	–	Sell	-40,118	Closed	-$646K	–	10200
2024 Q1	$919K	Buy	+40,118	New	+$1.41M	﹤0.01%	5572
2023 Q3	–	Sell	-9,139	Closed	-$278K	–	9404
2023 Q2	$278K	Buy	9,139 +7,972	+683%	+$204K	﹤0.01%	7254
2023 Q1	$21.9K	Buy	+1,167	New	+$19.2K	﹤0.01%	8625

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.