Jane Street’s XBiotech XBIT Stock Holding History

Jane Street’s Portfolio XBIT Stock Details XBIT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$172K	Buy	+74,700	New	+$181K	﹤0.01%	10247

Other funds holding XBIT

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

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

RBF Capital San Francisco, California $2.41B AUM 39.41% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

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

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Jane Street's XBIT Position: Q2 2026 in Review

Jane Street reduced its XBiotech (XBIT) stake by 81% in Q2 2026, selling an estimated $118K and leaving 11,476 shares worth $26.4K. The position accounts for ﹤0.01% of the portfolio, ranked #11139.

Jane Street first reported a position in XBIT in Q1 2020 and has held it in 12 quarters since. The position peaked at $1.58M in Q2 2020. 36 funds tracked by Wall St. Rank hold XBIT as of Q2 2026.

Jane Street held 11,476 shares of XBiotech worth $26.4K as of Q2 2026.
Jane Street sold 48,624 XBiotech shares in Q2 2026, an estimated $118K.
XBiotech made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #11139 holding.
Jane Street first reported a position in XBiotech in Q1 2020 and has held it in 12 quarters since.
Jane Street's XBiotech position peaked at $1.58M in Q2 2020.
36 funds tracked by Wall St. Rank held XBiotech as of Q2 2026.

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