BRF
STLN

B. Riley Financial’s Starling Oncology Institute, Inc. Common Stock STLN Stock Holding History

B. Riley Financial’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 		$2.85M Buy
929,734
+266,358
+40% +$817K 0.63% 7
2025
Q4 		$2.36M Sell
663,376
-148,170
-18% -$550K 1.01% 6
2025
Q3 		$2.83M Buy
811,546
+349,546
+76% +$1.2M 1.92% 6
2025
Q2 		$947K Buy
462,000
+312,000
+208% +$780K 1.06% 10
2025
Q1 		$171K Buy
+150,000
New +$116K 0.22% 14

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

B. Riley Financial's STLN Position: Q1 2026 in Review

B. Riley Financial increased its Starling Oncology Institute, Inc. Common Stock (STLN) stake by 40% in Q1 2026, buying an estimated $817K and bringing the position to 929,734 shares worth $2.85M. The position accounts for 0.63% of the portfolio, ranked #7.

B. Riley Financial first reported a position in STLN in Q1 2025 and has held it in 5 quarters since. 115 funds tracked by Wall St. Rank hold STLN as of Q1 2026.

  • B. Riley Financial held 929,734 shares of Starling Oncology Institute, Inc. Common Stock worth $2.85M as of Q1 2026.
  • B. Riley Financial bought 266,358 Starling Oncology Institute, Inc. Common Stock shares in Q1 2026, an estimated $817K.
  • Starling Oncology Institute, Inc. Common Stock made up 0.63% of B. Riley Financial's portfolio in Q1 2026, its #7 holding.
  • B. Riley Financial first reported a position in Starling Oncology Institute, Inc. Common Stock in Q1 2025 and has held it in 5 quarters since.
  • 115 funds tracked by Wall St. Rank held Starling Oncology Institute, Inc. Common Stock as of Q1 2026.

Based on B. Riley Financial's 13F filing for Q1 2026, filed 15 May 2026.