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
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 $3.14B AUM 249.53% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $26.4B AUM 44.85% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
GKIM
GW&K Investment Management Boston, Massachusetts $11.3B AUM 31.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street's XOMA Position: Q1 2026 in Review

Jane Street opened a new position in Xoma (XOMA) in Q1 2026: 14,519 shares worth $455K. The stake represents ﹤0.01% of the portfolio and ranks #8275 among its holdings. This is a return to the name: Jane Street previously reported a position in XOMA as recently as Q3 2025.

Jane Street first reported a position in XOMA in Q2 2013 and has held it in 10 quarters since. The position peaked at $1.05M in Q3 2025. 85 funds tracked by Wall St. Rank hold XOMA as of Q1 2026.

  • Jane Street held 14,519 shares of Xoma worth $455K as of Q1 2026.
  • Xoma was a new Jane Street position in Q1 2026.
  • Xoma made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8275 holding.
  • Jane Street first reported a position in Xoma in Q2 2013 and has held it in 10 quarters since.
  • Jane Street's Xoma position peaked at $1.05M in Q3 2025.
  • 85 funds tracked by Wall St. Rank held Xoma as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.