Millennium Management
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Millennium Management’s SELLAS Life Sciences SLS Stock Holding History

Millennium Management’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
Q1 		$915K Buy
+216,200
New +$967K ﹤0.01% 4453

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VCM
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Geode Capital Management
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Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Jones Financial Companies
Jones Financial Companies Des Peres, Missouri $208B AUM 16.12% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

Millennium Management's SLS Position: Q1 2026 in Review

Millennium Management reduced its SELLAS Life Sciences (SLS) stake by 89% in Q1 2026, selling an estimated $5.5M and leaving 159,524 shares worth $675K. The position accounts for ﹤0.01% of the portfolio, ranked #4621.

Millennium Management first reported a position in SLS in Q4 2016 and has held it in 15 quarters since. The position peaked at $5.23M in Q4 2025. 160 funds tracked by Wall St. Rank hold SLS as of Q1 2026.

  • Millennium Management held 159,524 shares of SELLAS Life Sciences worth $675K as of Q1 2026.
  • Millennium Management sold 1,228,325 SELLAS Life Sciences shares in Q1 2026, an estimated $5.5M.
  • SELLAS Life Sciences made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #4621 holding.
  • Millennium Management first reported a position in SELLAS Life Sciences in Q4 2016 and has held it in 15 quarters since.
  • Millennium Management's SELLAS Life Sciences position peaked at $5.23M in Q4 2025.
  • 160 funds tracked by Wall St. Rank held SELLAS Life Sciences as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.