Simplex Trading
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Simplex Trading’s SELLAS Life Sciences SLS Stock Holding History

Simplex Trading’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 		$2.27M Sell
154,099
-141,063
-48% -$974K ﹤0.01% 1899
2026
Q1 		$1.25M Buy
+295,162
New +$1.32M ﹤0.01% 2271
2022
Q4 		– Sell
-1,315
Closed -$3.69K – 10320
2022
Q3 		$2K Buy
+1,315
New +$3.63K ﹤0.01% 9355
2022
Q2 		– Sell
-6,912
Closed -$20.3K – 10996
2022
Q1 		$46K Sell
6,912
-36
-0.5% -$211 ﹤0.01% 7254
2021
Q4 		$38K Buy
+6,948
New +$52.6K ﹤0.01% 7603
2021
Q1 		– Sell
-16
Closed -$131 – 9917
2020
Q4 		$0 Buy
+16
New +$64 ﹤0.01% 9011
2017
Q3 		– Sell
-1
Closed -$660 – 6574
2017
Q2 		$0 Buy
+1
New +$870 ﹤0.01% 6733

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

Simplex Trading's SLS Position: Q2 2026 in Review

Simplex Trading reduced its SELLAS Life Sciences (SLS) stake by 48% in Q2 2026, selling an estimated $974K and leaving 154,099 shares worth $2.27M. The position accounts for ﹤0.01% of the portfolio, ranked #1899.

Simplex Trading first reported a position in SLS in Q2 2017 and has held it in 7 quarters since. 192 funds tracked by Wall St. Rank hold SLS as of Q2 2026.

  • Simplex Trading held 154,099 shares of SELLAS Life Sciences worth $2.27M as of Q2 2026.
  • Simplex Trading sold 141,063 SELLAS Life Sciences shares in Q2 2026, an estimated $974K.
  • SELLAS Life Sciences made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #1899 holding.
  • Simplex Trading first reported a position in SELLAS Life Sciences in Q2 2017 and has held it in 7 quarters since.
  • 192 funds tracked by Wall St. Rank held SELLAS Life Sciences as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.