Jane Street
XOMA

Jane Street’s Xoma XOMA Stock Holding History

Jane Street’s Portfolio XOMA Stock Details XOMA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.36M Buy
+32,100
New +$1.3M ﹤0.01% 5882
2015
Q3 		– Sell
-750
Closed -$58K – 4242
2015
Q2 		$58K Buy
+750
New +$54K ﹤0.01% 3509

Other funds holding XOMA

BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
OM
Opaleye Management Boston, Massachusetts $1.1B AUM 197.64% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
WIC
Water Island Capital New York $1.08B AUM 105.75% 1-Year Est. Return

Jane Street's XOMA Position: Q2 2026 in Review

Jane Street increased its Xoma (XOMA) stake by 25% in Q2 2026, buying an estimated $149K and bringing the position to 18,192 shares worth $773K. The position accounts for ﹤0.01% of the portfolio, ranked #7082.

Jane Street first reported a position in XOMA in Q2 2013 and has held it in 11 quarters since. The position peaked at $1.05M in Q3 2025. 98 funds tracked by Wall St. Rank hold XOMA as of Q2 2026.

  • Jane Street held 18,192 shares of Xoma worth $773K as of Q2 2026.
  • Jane Street bought 3,673 Xoma shares in Q2 2026, an estimated $149K.
  • Xoma made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7082 holding.
  • Jane Street first reported a position in Xoma in Q2 2013 and has held it in 11 quarters since.
  • Jane Street's Xoma position peaked at $1.05M in Q3 2025.
  • 98 funds tracked by Wall St. Rank held Xoma as of Q2 2026.

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