Jane Street’s Annexon ANNX Stock Holding History

Jane Street’s Portfolio ANNX Stock Details ANNX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$57.1K	Buy	+10,000	New	+$55.3K	﹤0.01%	10877
2026 Q1	–	Sell	-10,300	Closed	-$51.7K	–	11488
2025 Q4	$51.7K	Buy	+10,300	New	+$39.4K	﹤0.01%	10495
2024 Q3	–	Sell	-24,700	Closed	-$121K	–	9525
2024 Q2	$121K	Buy	+24,700	New	+$128K	﹤0.01%	8660

Other funds holding ANNX

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return

Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

MCO

MAK Capital One New York $714M AUM 68.07% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

Jane Street's ANNX Position: Q2 2026 in Review

Jane Street sold out of Annexon (ANNX) in Q2 2026, closing a stake of 47,120 shares — an estimated $260K sold.

Jane Street first reported a position in ANNX in Q3 2020 and held it in 15 quarters. The position peaked at $2.58M in Q4 2025. 216 funds tracked by Wall St. Rank hold ANNX as of Q2 2026.

Jane Street reported no remaining Annexon position as of Q2 2026 after selling out during the quarter.
Jane Street sold 47,120 Annexon shares in Q2 2026, an estimated $260K.
Jane Street first reported a position in Annexon in Q3 2020 and held it in 15 quarters.
Jane Street's Annexon position peaked at $2.58M in Q4 2025.
216 funds tracked by Wall St. Rank held Annexon as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.