Starling OncologySTLN
13F holders, Q1 2026 (March 31)115holders −2
20new positions
26sold out
4famous investors
$3.07avg. 13F price*
At the end of Q1 2026, 115 institutions reported holding Starling Oncology Inc. (STLN) in their 13F filings, down 2 from Q4 2025. 20 opened new positions and 26 sold out. The largest holders were BlackRock, Inc. ($13.6M), Vanguard Capital Management LLC ($10.7M) and Deerfield Management Company, L.P. ($10.3M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Starling Oncology Inc.
- Filed as
- THE ONCOLOGY INSTITUTE INC (Q1 2026)
- CUSIP
- 68236X100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $6.5M |
| Exits | 26 | $7.3M |
All 13F filers, Q4 2025 → Q1 2026: 5,938,815 shares bought and 5,808,544 shares sold, net +130,271 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 115 holders
| BlackRock, Inc. | 0.00% | Add +13.1% | 4,415,867 | $13.6M |
| Vanguard Capital Management LLC | 0.00% | — | 3,476,781 | $10.7M |
| Deerfield Management Company, L.P. | 0.14% | No change | 3,360,052 | $10.3M |
| Kanen Wealth Management LLC | 3.07% | Reduce -6.7% | 2,777,858 | $8.5M |
| Josh Arnold Investment Consultant, LLC | 6.47% | Add +0.2% | 2,464,359 | $7.6M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -27.5% | 1,826,370 | $5.6M |
| Geode Capital Management, LLC | 0.00% | Add +11.9% | 1,757,847 | $5.4M |
| Wexford Capital LP | 0.87% | Add +11.6% | 1,711,323 | $5.3M |
| CenterBook Partners LP | 0.26% | Reduce -48.2% | 1,568,423 | $4.8M |
| State Street Corp. | 0.00% | Add +8.1% | 1,461,454 | $4.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +137.0% | 1,351,899 | $4.2M |
| BRC Group Holdings, Inc. | 0.63% | Add +40.1% | 929,734 | $2.9M |
| Renaissance Technologies | 0.00% | Add +25.1% | 902,809 | $2.8M |
| Vanguard Portfolio Management LLC | 0.00% | — | 862,839 | $2.6M |
| Ensign Peak Advisors, Inc | 0.00% | New | 626,852 | $1.9M |
| Citadel Advisors | 0.00% | New | 608,267 | $1.9M |
| UBS Group AG | 0.00% | Add +99.8% | 574,652 | $1.8M |
| Northern Trust Corp. | 0.00% | Add +11.9% | 558,455 | $1.7M |
| FourWorld Capital Management LLC | 0.87% | Add +30.4% | 499,196 | $1.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 483,060 | $1.5M |
| Dauntless Investment Group, LLC | 3.99% | New | 462,057 | $1.4M |
| Jane Street Group, LLC | 0.00% | Reduce -47.1% | 424,894 | $1.3M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +169.3% | 419,423 | $1.3M |
| Marshall Wace, LLP | 0.00% | Add +89.8% | 342,265 | $1.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.3% | 370,177 | $1.0M |
| Two Sigma Investments, LP | 0.00% | Add +17.4% | 307,754 | $945K |
| Mount Lucas Management LP | 0.28% | No change | 250,000 | $768K |
| Centiva Capital, LP | 0.03% | New | 224,245 | $688K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.2% | 214,915 | $660K |
| Tiff Advisory Services, LLC | 0.13% | Reduce -0.1% | 195,469 | $565K |
| Morgan Stanley | 0.00% | Reduce -22.6% | 171,940 | $528K |
| Bank of New York Mellon Corp | 0.00% | Add +17.0% | 162,442 | $499K |
| Boothbay Fund Management, LLC | 0.01% | Add +61.7% | 137,792 | $423K |
| Millennium Management | 0.00% | Reduce -31.9% | 131,522 | $404K |
| Cetera Investment Advisers | 0.00% | Add +427.8% | 128,195 | $394K |
| Jump Financial, LLC | 0.01% | Add +360.6% | 116,430 | $357K |
| T3 Companies, LLC | 0.47% | Reduce -44.4% | 111,900 | $344K |
| State of Wyoming | 0.04% | Reduce -2.9% | 103,617 | $318K |
| Kingswood Wealth Advisors, LLC | 0.01% | Add +4.6% | 103,200 | $317K |
| Nuveen, LLC | 0.00% | Add +24.3% | 95,264 | $292K |
| Private Advisor Group, LLC | 0.00% | Add +51.4% | 94,170 | $289K |
| Susquehanna International Group, LLP | 0.00% | Reduce -68.5% | 92,869 | $285K |
| XTX Topco Ltd | 0.00% | Add +94.2% | 90,346 | $277K |
| HighTower Advisors, LLC | 0.00% | Reduce -2.3% | 83,919 | $258K |
| Lee Financial Co | 0.04% | No change | 81,362 | $250K |
| Aquatic Capital Management LLC | 0.01% | Add +165.2% | 78,468 | $241K |
| Rhumbline Advisers | 0.00% | Add +4.4% | 77,845 | $239K |
| Alliancebernstein L.P. | 0.00% | No change | 61,600 | $219K |
| Fielder Capital Group LLC | 0.05% | No change | 70,192 | $215K |
| WealthShield Partners, LLC | 0.02% | No change | 70,154 | $215K |
| Bank of America Corp. | 0.00% | Add +36.6% | 63,439 | $195K |
| Engineers Gate Manager LP | 0.00% | Add +307.0% | 62,794 | $193K |
| LPL Financial LLC | 0.00% | Reduce -77.5% | 61,065 | $187K |
| Deutsche Bank AG | 0.00% | Add +16.9% | 55,922 | $172K |
| ADAR1 Capital Management, LLC | 0.01% | New | 50,000 | $154K |
| FMR LLC | 0.00% | Add +3219.8% | 49,531 | $152K |
| T. Rowe Price Associates Inc. | 0.00% | Add +27.0% | 48,271 | $149K |
| Innovative Asset Advisors Group, LLC | 0.08% | — | 47,250 | $145K |
| AQR Capital Management | 0.00% | Reduce -7.4% | 44,519 | $137K |
| Wells Fargo & Company | 0.00% | Reduce -51.6% | 40,423 | $124K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +18.1% | 37,383 | $115K |
| Invesco Ltd. | 0.00% | Reduce -20.8% | 37,219 | $114K |
| Graham Capital Management, L.P. | 0.00% | New | 33,792 | $104K |
| Caitong International Asset Management Co., Ltd | 0.02% | Add +48.1% | 33,280 | $102K |
| Pekin Hardy Strauss, Inc. | 0.01% | Add +220.0% | 32,000 | $98K |
| Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P. | 0.01% | No change | 29,534 | $91K |
| Vanguard Global Advisers, LLC | 0.00% | — | 28,874 | $89K |
| Arax Advisory Partners | 0.00% | New | 28,706 | $88K |
| MetLife Investment Management, LLC | 0.00% | Reduce -31.3% | 27,790 | $85K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +79.6% | 27,627 | $85K |
| Prudential Financial Inc. | 0.00% | Add +79.7% | 26,525 | $81K |
| Creative Planning | 0.00% | Reduce -66.7% | 26,212 | $80K |
| ExodusPoint Capital Management, LP | 0.00% | Reduce -79.2% | 24,419 | $75K |
| EntryPoint Capital, LLC | 0.02% | Add +29.2% | 23,852 | $73K |
| Squarepoint Ops LLC | 0.00% | Reduce -61.4% | 23,831 | $73K |
| Intech Investment Management LLC | 0.00% | Add +26.9% | 22,482 | $69K |
| Royal Bank of Canada | 0.00% | Add +335.9% | 22,257 | $68K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +0.3% | 21,894 | $67K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 21,234 | $65K |
| BNP Paribas Financial Markets | 0.00% | Add +13.0% | 16,928 | $52K |
| R Squared Ltd | 0.03% | Add +42.7% | 16,353 | $50K |
| VestGen Advisors, LLC | 0.00% | New | 12,000 | $48K |
| Barclays PLC | 0.00% | Reduce -85.7% | 15,176 | $47K |
| Granite Investment Partners, LLC | 0.00% | New | 14,831 | $46K |
| NINE MASTS CAPITAL Ltd | 0.01% | New | 14,018 | $43K |
| SG Americas Securities, LLC | 0.00% | Reduce -12.6% | 14,098 | $43K |
| Virtu Financial LLC | 0.00% | New | 13,213 | $41K |
| Voya Investment Management LLC | 0.00% | Add +12.6% | 13,333 | $41K |
| ProShare Advisors LLC | 0.00% | Reduce -7.3% | 11,561 | $35K |
| AMG National Trust Bank | 0.00% | No change | 10,000 | $31K |
| Quantbot Technologies LP | 0.00% | New | 9,455 | $29K |
| Group One Trading LLC | 0.00% | Reduce -85.5% | 9,038 | $28K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +36.8% | 7,314 | $22K |
| Legal & General Group Plc | 0.00% | Reduce -15.6% | 6,520 | $20K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 6,026 | $19K |
| New York State Common Retirement Fund | 0.00% | No change | 5,600 | $17K |
| Russell Investments Group, Ltd. | 0.00% | Add +1.2% | 4,992 | $15K |
| California State Teachers Retirement System | 0.00% | Add +4.3% | 4,384 | $13K |
| Citigroup Inc. | 0.00% | Add +138.8% | 4,182 | $13K |
| Osaic Holdings, Inc. | 0.00% | Reduce -56.0% | 3,083 | $9K |
"% of holder's portfolio" is STLN's weight in each manager's 13F, not the share of Starling Oncology Inc. the manager owns.