Starling Oncology, Inc.
STLN- Exchange
- Nasdaq
- Industry
- Services-Offices & Clinics of Doctors of Medicine
- SEC CIK
- 0001799191
In the last 90 days, Starling Oncology, Inc. insiders filed 3 open-market purchases and 2 sales; 119 institutions reported holding it in 13F filings for Q2 2026, worth $217.6M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Starling Oncology, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 108
- +29 vs. Q2 2025
- Shares held
- 34.7M
- +2.73M (+8.6%) vs. Q2 2025
- Total value
- $121.0M
- +$55.5M (+84.8%) vs. Q2 2025
- New holders
- 35
- 33 more added
- Sold out
- 6
- 24 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting STLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 119 | $217.6M |
| Q1 2026 | 115 | $118.9M |
| Q4 2025 | 117 | $137.1M |
| Q3 2025 | 108 | $121.0M |
| Q2 2025 | 79 | $65.5M |
| Q1 2025 | 43 | $19.4M |
| Q4 2024 | 31 | $4.61M |
| Q3 2024 | 34 | $6.73M |
| Q2 2024 | 39 | $8.60M |
| Q1 2024 | 47 | $27.2M |
| Q4 2023 | 45 | $37.6M |
| Q3 2023 | 36 | $21.2M |
| Q2 2023 | 38 | $7.66M |
| Q1 2023 | 39 | $14.9M |
| Q4 2022 | 40 | $38.7M |
| Q3 2022 | 39 | $108.4M |
| Q2 2022 | 36 | $110.9M |
| Q1 2022 | 29 | $159.0M |
| Q4 2021 | 21 | $199.9M |
| Q3 2021 | 1 | $2.50M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Starling Oncology, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Geode Capital Management, LLC | 1,401,906 | $4.89M | 0.00% | +122,463+9.6% | Added |
| Wexford Capital LP | 1,571,069 | $5.48M | 1.65% | +452,390+40.4% | Added |
| Kanen Wealth Management LLC | 1,842,101 | $6.42M | 2.15% | +1,842,101 | New |
| Balyasny Asset Management LLC | 2,518,337 | $8.79M | 0.02% | 00.0% | Unchanged |
| CenterBook Partners LP | 2,704,650 | $9.44M | 0.47% | +1,988,751+277.8% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,360,052 | $11.7M | 0.18% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,434,875 | $12.0M | 0.00% | +127,971+3.9% | Added |
| Vanguard Group Inc | 4,545,245 | $15.9M | 0.00% | +264,358+6.2% | Added |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −221,512−100.0% | Sold out |
| Citizens Financial Group Inc | 0 | $0 | 0.00% | −119,000−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −113,676−100.0% | Sold out |
| Saba Capital Management, L.P. | 0 | $0 | 0.00% | −94,264−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −49,443−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −15,200−100.0% | Sold out |