Group One Trading
STLN

Group One Trading’s Starling Oncology Institute, Inc. Common Stock STLN Stock Holding History

Group One Trading’s Portfolio STLN Stock Details STLN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$918K Sell
299,100
-46,800
-14% -$144K ﹤0.01% 2807
2025
Q4 		$1.23M Buy
345,900
+222,600
+181% +$826K ﹤0.01% 2707
2025
Q3 		$430K Buy
+123,300
New +$422K ﹤0.01% 3851

Other funds holding STLN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
KWM
Kanen Wealth Management Coconut Creek, Florida $278M AUM 38.85% 1-Year Est. Return
JAIC
Josh Arnold Investment Consultant Edina, Minnesota $117M AUM 26.5% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
WC
Wexford Capital West Palm Beach, Florida $690M AUM 57.88% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Group One Trading's STLN Position: Q1 2026 in Review

Group One Trading reduced its Starling Oncology Institute, Inc. Common Stock (STLN) stake by 85% in Q1 2026, selling an estimated $163K and leaving 9,038 shares worth $27.7K. The position accounts for ﹤0.01% of the portfolio, ranked #5736.

Group One Trading first reported a position in STLN in Q4 2025 and has held it in 2 quarters since. The position peaked at $221K in Q4 2025. 115 funds tracked by Wall St. Rank hold STLN as of Q1 2026.

  • Group One Trading held 9,038 shares of Starling Oncology Institute, Inc. Common Stock worth $27.7K as of Q1 2026.
  • Group One Trading sold 53,102 Starling Oncology Institute, Inc. Common Stock shares in Q1 2026, an estimated $163K.
  • Starling Oncology Institute, Inc. Common Stock made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5736 holding.
  • Group One Trading first reported a position in Starling Oncology Institute, Inc. Common Stock in Q4 2025 and has held it in 2 quarters since.
  • Group One Trading's Starling Oncology Institute, Inc. Common Stock position peaked at $221K in Q4 2025.
  • 115 funds tracked by Wall St. Rank held Starling Oncology Institute, Inc. Common Stock as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.