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, Q1 2026
Institutional positions in Starling Oncology, Inc. as of Mar 31, 2026. 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
- 115
- −1 vs. Q4 2025
- Shares held
- 38.8M
- +5.03M (+14.9%) vs. Q4 2025
- Total value
- $118.9M
- −$1.29M (−1.1%) vs. Q4 2025
- New holders
- 25
- 51 more added
- Sold out
- 26
- 27 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Starling Oncology, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ensign Peak Advisors, Inc | 626,852 | $1.92M | 0.00% | +626,852 | New |
| Vanguard Portfolio Management LLC | 862,839 | $2.65M | 0.00% | +862,839 | New |
| Renaissance Technologies LLC | 902,809 | $2.77M | 0.00% | +180,909+25.1% | Added |
| B. Riley Financial, Inc. | 929,734 | $2.85M | 0.63% | +266,358+40.2% | Added |
| Goldman Sachs Group Inc | 1,351,899 | $4.15M | 0.00% | +781,475+137.0% | Added |
| State Street Corp | 1,461,454 | $4.49M | 0.00% | +109,830+8.1% | Added |
| CenterBook Partners LP | 1,568,423 | $4.82M | 0.26% | −1,460,889−48.2% | Reduced |
| Wexford Capital LP | 1,711,323 | $5.25M | 0.87% | +177,867+11.6% | Added |
| Geode Capital Management, LLC | 1,757,847 | $5.40M | 0.00% | +187,393+11.9% | Added |
| Balyasny Asset Management LLC | 1,826,370 | $5.61M | 0.01% | −692,067−27.5% | Reduced |
| Josh Arnold Investment Consultant, LLC | 2,464,359 | $7.57M | 6.50% | +4,550+0.2% | Added |
| Kanen Wealth Management LLC | 2,777,858 | $8.53M | 3.07% | −198,286−6.7% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 3,360,052 | $10.3M | 0.12% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 3,476,781 | $10.7M | 0.00% | +3,476,781 | New |
| BlackRock, Inc. | 4,415,867 | $13.6M | 0.00% | +510,534+13.1% | Added |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| GatePass Capital, LLC | 0 | $0 | 0.00% | −360,000−100.0% | Sold out |
| FreeGulliver LLC | 0 | $0 | 0.00% | −355,672−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −251,128−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −182,509−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −111,553−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −70,654−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −69,275−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −50,100−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −31,595−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −31,468−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −31,180−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −30,581−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −17,733−100.0% | Sold out |
| Adviser Investments LLC | 0 | $0 | 0.00% | −15,633−100.0% | Sold out |
| Intrua Financial, LLC | 0 | $0 | 0.00% | −11,676−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −8,680−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −2,144−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,806−100.0% | Sold out |
| Strive Financial Group ,LLC | 0 | $0 | 0.00% | −1,584−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −459−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −186−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |