XT
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XTX Topco’s SELLAS Life Sciences SLS Stock Holding History

XTX Topco’s Portfolio SLS Stock Details SLS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$5.3M Buy
+359,090
New +$2.48M 0.07% 354
2026
Q1 		– Sell
-118,440
Closed -$447K – 4334
2025
Q4 		$447K Buy
+118,440
New +$230K 0.01% 1706
2025
Q3 		– Sell
-76,900
Closed -$168K – 3214
2025
Q2 		$168K Buy
+76,900
New +$118K 0.01% 1760
2025
Q1 		– Sell
-53,426
Closed -$55.6K – 3038
2024
Q4 		$55.6K Sell
53,426
-9,359
-15% -$10.7K ﹤0.01% 1881
2024
Q3 		$78.5K Buy
+62,785
New +$76.7K 0.01% 1641
2024
Q2 		– Sell
-17,391
Closed -$17.6K – 2415
2024
Q1 		$17.6K Sell
17,391
-25,179
-59% -$21.1K ﹤0.01% 1624
2023
Q4 		$45.1K Buy
42,570
+9,588
+29% +$10.4K 0.01% 1245
2023
Q3 		$54.1K Buy
+32,982
New +$52K 0.01% 1268
2023
Q1 		– Sell
-55,403
Closed -$131K – 1634
2022
Q4 		$131K Buy
+55,403
New +$155K 0.03% 950

Other funds holding SLS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AFM
Anson Funds Management Dallas, Texas $1.68B AUM 373.57% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Jones Financial Companies
Jones Financial Companies Des Peres, Missouri $250B AUM 21.32% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

XTX Topco's SLS Position: Q2 2026 in Review

XTX Topco opened a new position in SELLAS Life Sciences (SLS) in Q2 2026: 359,090 shares worth $5.3M. The stake represents 0.07% of the portfolio and ranks #354 among its holdings. This is a return to the name: XTX Topco previously reported a position in SLS as recently as Q4 2025.

XTX Topco first reported a position in SLS in Q4 2022 and has held it in 9 quarters since. 192 funds tracked by Wall St. Rank hold SLS as of Q2 2026.

  • XTX Topco held 359,090 shares of SELLAS Life Sciences worth $5.3M as of Q2 2026.
  • SELLAS Life Sciences was a new XTX Topco position in Q2 2026.
  • SELLAS Life Sciences made up 0.07% of XTX Topco's portfolio in Q2 2026, its #354 holding.
  • XTX Topco first reported a position in SELLAS Life Sciences in Q4 2022 and has held it in 9 quarters since.
  • 192 funds tracked by Wall St. Rank held SELLAS Life Sciences as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.