TA
XOMA

TLS Advisors’s Xoma XOMA Stock Holding History

TLS Advisors’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 		$1.79M Sell
42,165
-72,702
-63% -$2.95M 5.27% 7
2026
Q1 		$3.6M Buy
114,867
+66,944
+140% +$1.79M 8.55% 5
2025
Q4 		$1.69M Sell
47,923
-66,944
-58% -$2.15M 4.43% 7
2025
Q3 		$3.79M Sell
114,867
-4,177
-4% -$130K 11.01% 5
2025
Q2 		$3M Hold
119,044
– – 9.36% 5
2025
Q1 		$2.37M Hold
119,044
– – 5.36% 6
2024
Q4 		$3.13M Sell
119,044
-700
-0.6% -$20.5K 7.15% 6
2024
Q3 		$3.17M Sell
119,744
-621
-0.5% -$16.8K 6.7% 6
2024
Q2 		$2.85M Hold
120,365
– – 7.14% 6
2024
Q1 		$2.9M Sell
120,365
-100
-0.1% -$2.24K 6.74% 7
2023
Q4 		$2.23M Sell
120,465
-200
-0.2% -$3.29K 7.4% 5
2023
Q3 		$1.7M Hold
120,665
– – 6.88% 5
2023
Q2 		$2.28M Buy
120,665
+200
+0.2% +$3.75K 9.78% 4
2023
Q1 		$2.54M Sell
120,465
-3,559
-3% -$74.8K 13.08% 3
2022
Q4 		$2.28M Buy
+124,024
New +$2.25M 11.25% 3

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

TLS Advisors's XOMA Position: Q2 2026 in Review

TLS Advisors reduced its Xoma (XOMA) stake by 63% in Q2 2026, selling an estimated $2.95M and leaving 42,165 shares worth $1.79M. The position accounts for 5.27% of the portfolio, ranked #7.

TLS Advisors first reported a position in XOMA in Q4 2022 and has held it in 15 quarters since. The position peaked at $3.79M in Q3 2025. 98 funds tracked by Wall St. Rank hold XOMA as of Q2 2026.

  • TLS Advisors held 42,165 shares of Xoma worth $1.79M as of Q2 2026.
  • TLS Advisors sold 72,702 Xoma shares in Q2 2026, an estimated $2.95M.
  • Xoma made up 5.27% of TLS Advisors's portfolio in Q2 2026, its #7 holding.
  • TLS Advisors first reported a position in Xoma in Q4 2022 and has held it in 15 quarters since.
  • TLS Advisors's Xoma position peaked at $3.79M in Q3 2025.
  • 98 funds tracked by Wall St. Rank held Xoma as of Q2 2026.

Based on TLS Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.