Starling OncologySTLN
13F holders, Q2 2026 (June 30)119holders +4
26new positions
21sold out
4famous investors
$5.43avg. 13F price*
At the end of Q2 2026, 119 institutions reported holding Starling Oncology Inc. (STLN) in their 13F filings, up 4 from Q1 2026. 26 opened new positions and 21 sold out. The largest holders were BlackRock, Inc. ($25.8M), Deerfield Management Company, L.P. ($18.2M) and Vanguard Capital Management LLC ($17.7M). 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 (Q2 2026)
- CUSIP
- 68236X100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 26 | $15.8M |
| Exits | 21 | $19.3M |
All 13F filers, Q1 2026 → Q2 2026: 9,540,944 shares bought and 8,211,300 shares sold, net +1,329,644 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 119 holders
| BlackRock, Inc. | 0.00% | Add +7.5% | 4,749,030 | $25.8M |
| Deerfield Management Company, L.P. | 0.23% | No change | 3,360,052 | $18.2M |
| Vanguard Capital Management LLC | 0.00% | Reduce -6.1% | 3,265,531 | $17.7M |
| Josh Arnold Investment Consultant, LLC | 8.42% | No change | 2,464,359 | $13.4M |
| Geode Capital Management, LLC | 0.00% | Add +8.1% | 1,899,998 | $10.3M |
| Goldman Sachs Group Inc. | 0.00% | Add +28.4% | 1,735,337 | $9.4M |
| Wexford Capital LP | 1.27% | No change | 1,711,323 | $9.3M |
| State Street Corp. | 0.00% | Add +6.3% | 1,552,917 | $8.4M |
| Nuveen, LLC | 0.00% | Add +1378.8% | 1,408,720 | $7.6M |
| Renaissance Technologies | 0.01% | Add +51.3% | 1,365,913 | $7.4M |
| CenterBook Partners LP | 0.33% | Reduce -20.8% | 1,241,660 | $6.7M |
| Marshall Wace, LLP | 0.01% | Add +257.2% | 1,222,498 | $6.6M |
| Vanguard Portfolio Management LLC | 0.00% | Add +16.7% | 1,007,037 | $5.5M |
| Citadel Advisors | 0.00% | Add +47.0% | 894,101 | $4.9M |
| Jane Street Group, LLC | 0.00% | Add +100.6% | 852,163 | $4.6M |
| BRC Group Holdings, Inc. | 0.93% | Reduce -20.1% | 742,593 | $4.0M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +69.5% | 710,888 | $3.9M |
| Two Sigma Investments, LP | 0.00% | Add +117.3% | 668,839 | $3.6M |
| Northern Trust Corp. | 0.00% | Add +5.9% | 591,534 | $3.2M |
| Acadian Asset Management LLC | 0.00% | New | 567,001 | $3.1M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +3.9% | 502,049 | $2.7M |
| FourWorld Capital Management LLC | 3.46% | No change | 499,196 | $2.7M |
| Manatuck Hill Partners, LLC | 0.81% | New | 450,000 | $2.4M |
| Walleye Capital LLC | 0.01% | New | 445,832 | $2.4M |
| Inspire Investing, LLC | 0.09% | New | 424,008 | $2.3M |
| JPMorgan Chase & Co. | 0.00% | Add +10.6% | 409,348 | $2.3M |
| Bank of America Corp. | 0.00% | Add +517.9% | 391,997 | $2.1M |
| Invesco Ltd. | 0.00% | Add +819.3% | 342,166 | $1.9M |
| Formula Growth Ltd. | 0.57% | New | 300,000 | $1.6M |
| SG Americas Securities, LLC | 0.00% | Add +1766.6% | 263,147 | $1.4M |
| Mount Lucas Management LP | 0.48% | No change | 250,000 | $1.4M |
| Boothbay Fund Management, LLC | 0.02% | Add +69.4% | 233,379 | $1.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +5.2% | 226,007 | $1.2M |
| Informed Momentum Co LLC | 0.09% | New | 188,467 | $1.0M |
| Bank of New York Mellon Corp | 0.00% | Add +8.9% | 176,949 | $961K |
| Dauntless Investment Group, LLC | 1.54% | Reduce -64.6% | 163,570 | $888K |
| UBS Group AG | 0.00% | Reduce -73.3% | 153,273 | $832K |
| Morgan Stanley | 0.00% | Reduce -21.4% | 135,085 | $734K |
| Kingswood Wealth Advisors, LLC | 0.03% | Add +18.1% | 121,900 | $662K |
| Creative Planning | 0.00% | Add +319.4% | 109,925 | $597K |
| Panoramic Capital, LLC | 0.23% | New | 100,000 | $543K |
| Gsa Capital Partners LLP | 0.03% | New | 98,727 | $536K |
| Millennium Management | 0.00% | Reduce -26.3% | 96,875 | $526K |
| Cetera Investment Advisers | 0.00% | Reduce -30.3% | 89,415 | $486K |
| HighTower Advisors, LLC | 0.00% | Add +2.3% | 85,838 | $466K |
| White Pine Capital LLC | 0.11% | New | 85,618 | $465K |
| T3 Companies, LLC | 0.51% | Reduce -28.5% | 80,000 | $434K |
| Wells Fargo & Company | 0.00% | Add +94.2% | 78,510 | $426K |
| FMR LLC | 0.00% | Add +57.7% | 78,107 | $424K |
| Deutsche Bank AG | 0.00% | Add +35.8% | 75,937 | $412K |
| State of Wyoming | 0.04% | Reduce -29.7% | 72,882 | $396K |
| Squarepoint Ops LLC | 0.00% | Add +205.7% | 72,862 | $396K |
| Fielder Capital Group LLC | 0.08% | No change | 70,192 | $381K |
| T. Rowe Price Associates Inc. | 0.00% | Add +27.9% | 61,750 | $336K |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 51,282 | $278K |
| AQR Capital Management | 0.00% | Add +9.2% | 48,597 | $264K |
| MetLife Investment Management, LLC | 0.00% | Add +67.0% | 46,402 | $252K |
| Private Advisor Group, LLC | 0.00% | Reduce -51.3% | 45,850 | $249K |
| EntryPoint Capital, LLC | 0.06% | Add +88.5% | 44,972 | $244K |
| Alliancebernstein L.P. | 0.00% | Add +15.9% | 71,400 | $219K |
| Innovative Asset Advisors Group, LLC | 0.09% | Reduce -23.8% | 36,000 | $195K |
| Citigroup Inc. | 0.00% | Add +754.8% | 35,747 | $194K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -6.1% | 35,111 | $191K |
| Los Angeles Capital Management LLC | 0.00% | New | 33,935 | $184K |
| Barclays PLC | 0.00% | Add +123.6% | 33,929 | $184K |
| ExodusPoint Capital Management, LP | 0.00% | Add +37.8% | 33,644 | $183K |
| Pekin Hardy Strauss, Inc. | 0.02% | No change | 32,000 | $174K |
| Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P. | 0.02% | No change | 29,534 | $160K |
| Arax Advisory Partners | 0.00% | Add +1.8% | 29,213 | $159K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 28,874 | $157K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 27,627 | $150K |
| Prudential Financial Inc. | 0.00% | Add +1.1% | 26,825 | $146K |
| Globeflex Capital L P | 0.02% | New | 26,111 | $142K |
| LPL Financial LLC | 0.00% | Reduce -59.2% | 24,892 | $135K |
| Royal Bank of Canada | 0.00% | Add +4.8% | 23,327 | $128K |
| Axq Capital, LP | 0.01% | New | 22,460 | $122K |
| Franklin Resources Inc. | 0.00% | New | 22,177 | $120K |
| BNP Paribas Financial Markets | 0.00% | Add +26.8% | 21,461 | $117K |
| Intech Investment Management LLC | 0.00% | Reduce -8.7% | 20,531 | $111K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -6.2% | 20,530 | $111K |
| Russell Investments Group, Ltd. | 0.00% | Add +305.9% | 20,260 | $110K |
| WINTON GROUP Ltd | 0.00% | New | 18,800 | $102K |
| Granite Investment Partners, LLC | 0.01% | Add +22.4% | 18,148 | $99K |
| New York State Common Retirement Fund | 0.00% | Add +219.6% | 17,900 | $97K |
| Voya Investment Management LLC | 0.00% | Add +13.6% | 15,145 | $82K |
| Blackhawk Capital Partners, LLC | 0.03% | New | 15,000 | $81K |
| Fermata Advisors, LLC | 0.01% | New | 12,800 | $70K |
| FreeGulliver LLC | 0.02% | New | 12,350 | $67K |
| Engineers Gate Manager LP | 0.00% | Reduce -80.3% | 12,342 | $67K |
| Jump Financial, LLC | 0.00% | Reduce -89.4% | 12,300 | $67K |
| Osaic Holdings, Inc. | 0.00% | Add +281.7% | 11,768 | $64K |
| R Squared Ltd | 0.03% | Reduce -29.8% | 11,482 | $62K |
| Wealthspire Advisors, LLC | 0.00% | New | 11,400 | $62K |
| Caitong International Asset Management Co., Ltd | 0.01% | Reduce -66.8% | 11,061 | $60K |
| Ameriprise Financial Inc. | 0.00% | New | 10,300 | $56K |
| ProShare Advisors LLC | 0.00% | Reduce -13.3% | 10,026 | $54K |
| AMG National Trust Bank | 0.00% | No change | 10,000 | $54K |
| Kemnay Advisory Services Inc. | 0.01% | New | 8,592 | $47K |
| Legal & General Group Plc | 0.00% | Add +15.0% | 7,497 | $41K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -8.7% | 6,681 | $36K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 6,026 | $33K |
| Federated Hermes, Inc. | 0.00% | New | 3,322 | $18K |
| Miller Wealth Advisors, LLC | 0.01% | New | 2,820 | $15K |
| SBI Securities Co., Ltd. | 0.00% | New | 1,600 | $9K |
| Capital Advisors, Ltd. LLC | 0.00% | No change | 1,219 | $7K |
| California State Teachers Retirement System | 0.00% | Reduce -75.9% | 1,055 | $6K |
| Allworth Financial LP | 0.00% | Add +768.5% | 938 | $5K |
| Bessemer Group Inc. | 0.00% | Reduce -6.6% | 956 | $5K |
| PNC Financial Services Group, Inc. | 0.00% | Add +1.6% | 625 | $3K |
| Jones Financial Companies LLLP | 0.00% | No change | 578 | $3K |
| Sterling Capital Management LLC | 0.00% | Add +9.5% | 567 | $3K |
| IFP Advisors, Inc | 0.00% | No change | 500 | $3K |
| Quarry LP | 0.00% | New | 155 | $842 |
| GAMMA Investing LLC | 0.00% | No change | 63 | $342 |
| US Bancorp \de | 0.00% | Reduce -40.6% | 57 | $310 |
| Hughes Financial Services, LLC | 0.00% | New | 16 | $87 |
| EverSource Wealth Advisors, LLC | 0.00% | Add +7.7% | 14 | $76 |
| Farther Finance Advisors, LLC | 0.00% | No change | 7 | $38 |
| Keating Financial Advisory Services, Inc. | 0.00% | Add +100.0% | 2 | $11 |
"% of holder's portfolio" is STLN's weight in each manager's 13F, not the share of Starling Oncology Inc. the manager owns.