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, Q4 2025
Institutional positions in Starling Oncology, Inc. as of Dec 31, 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
- 117
- +11 vs. Q3 2025
- Shares held
- 38.5M
- +4.00M (+11.6%) vs. Q3 2025
- Total value
- $137.1M
- +$16.8M (+13.9%) vs. Q3 2025
- New holders
- 29
- 47 more added
- Sold out
- 18
- 26 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Starling Oncology, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 386,778 | $1.38M | 0.00% | +362,349+1,483.3% | Added |
| Massar Capital Management, LP | 400,000 | $1.42M | 0.28% | 00.0% | Unchanged |
| Northern Trust Corp | 499,244 | $1.78M | 0.00% | +34,552+7.4% | Added |
| Goldman Sachs Group Inc | 570,424 | $2.03M | 0.00% | −111,219−16.3% | Reduced |
| B. Riley Financial, Inc. | 663,376 | $2.36M | 1.01% | −148,170−18.3% | Reduced |
| Renaissance Technologies LLC | 721,900 | $2.57M | 0.00% | −28,600−3.8% | Reduced |
| Jane Street Group, LLC | 803,315 | $2.86M | 0.00% | +678,427+543.2% | Added |
| State Street Corp | 1,351,624 | $4.81M | 0.00% | +221,599+19.6% | Added |
| Wexford Capital LP | 1,533,456 | $5.46M | 1.40% | −37,613−2.4% | Reduced |
| Geode Capital Management, LLC | 1,570,454 | $5.59M | 0.00% | +168,548+12.0% | Added |
| Josh Arnold Investment Consultant, LLC | 2,459,809 | $8.76M | 6.53% | +2,255,559+1,104.3% | Added |
| Balyasny Asset Management LLC | 2,518,437 | $8.97M | 0.02% | +1000.0% | Added |
| Kanen Wealth Management LLC | 2,976,144 | $10.7M | 3.34% | +1,134,043+61.6% | Added |
| CenterBook Partners LP | 3,029,312 | $10.8M | 0.53% | +324,662+12.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,360,052 | $12.0M | 0.15% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,905,333 | $13.9M | 0.00% | +470,458+13.7% | Added |
| Vanguard Group Inc | 4,748,635 | $16.9M | 0.00% | +203,390+4.5% | Added |
| Manatuck Hill Partners, LLC | 0 | $0 | 0.00% | −629,800−100.0% | Sold out |
| EHP Funds Inc. | 0 | $0 | 0.00% | −244,041−100.0% | Sold out |
| Nkcfo LLC | 0 | $0 | 0.00% | −190,000−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −126,985−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −72,408−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −42,945−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −40,273−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −35,748−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −23,794−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −18,020−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −14,961−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −14,656−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −11,880−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −4,926−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −3,169−100.0% | Sold out |
| C M Bidwell & Associates Ltd | 0 | $0 | 0.00% | −265−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Point72 Europe (London) LLP | – | – | – | – | Not filed |