STARLING ONCOLOGY INC (STLN)
Institutional ownership reported to the SEC as of Q2 2026, across 21 quarters.
Institutions report 40,091,308 shares against 101,916,115 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $25.8M | 4,749,030 | 0.00% | 8q | +7.5%+$1.8M |
| DEERFIELD MANAGEMENT COMPANY, L.P. | $18.2M | 3,360,052 | 0.19% | 19q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $17.7M | 3,265,531 | 0.00% | 2q | -6.1%-$1.1M |
| JOSH ARNOLD INVESTMENT CONSULTANT, LLC | $13.4M | 2,464,359 | 8.42% | 6q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $10.3M | 1,899,998 | 0.00% | 19q | +8.1%+$772.1K |
| CITADEL ADVISORS LLC | $9.4M incl. $4.6M options CALL+PUT | 894,101 | 0.00% | 4q | +47.0%+$3.0M |
| GOLDMAN SACHS GROUP INC | $9.4M | 1,735,337 | 0.00% | 6q | +28.4%+$2.1M |
| WEXFORD CAPITAL LP | $9.3M | 1,711,323 | 1.19% | 5q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $8.7M CALL+PUT | options only | 0.00% | 6q | OPTIONS |
| STATE STREET CORP | $8.4M | 1,552,917 | 0.00% | 18q | +6.3%+$496.6K |
| Nuveen, LLC | $7.6M | 1,408,720 | 0.00% | 5q | +1378.8%+$7.1M |
| RENAISSANCE TECHNOLOGIES LLC | $7.4M | 1,365,913 | 0.01% | 14q | +51.3%+$2.5M |
| JANE STREET GROUP, LLC | $7.3M incl. $2.7M options CALL+PUT | 852,163 | 0.00% | 4q | +100.6%+$3.7M |
| CenterBook Partners LP | $6.7M | 1,241,660 | 0.33% | 5q | -20.8%-$1.8M |
| MARSHALL WACE, LLP | $6.6M | 1,222,498 | 0.01% | 5q | +257.2%+$4.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $5.5M | 1,007,037 | 0.00% | 2q | +16.7%+$783.0K |
| BRC Group Holdings, Inc. | $4.0M | 742,593 | 0.93% | 6q | -20.1%-$1.0M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.9M | 710,888 | 0.00% | 3q | +69.5%+$1.6M |
| TWO SIGMA INVESTMENTS, LP | $3.6M | 668,839 | 0.00% | 5q | +117.3%+$2.0M |
| NORTHERN TRUST CORP | $3.2M | 591,534 | 0.00% | 18q | +5.9%+$179.6K |
| ACADIAN ASSET MANAGEMENT LLC | $3.1M | 567,001 | 0.00% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $2.7M | 502,049 | 0.00% | 2q | +3.9%+$103.1K |
| FourWorld Capital Management LLC | $2.7M | 499,196 | 2.47% | 10q | HELD |
| Manatuck Hill Partners, LLC | $2.4M | 450,000 | 0.81% | new | NEW |
| Walleye Capital LLC | $2.4M | 445,832 | 0.01% | new | NEW |
| Inspire Investing, LLC | $2.3M | 424,008 | 0.09% | new | NEW |
| JPMORGAN CHASE & CO | $2.3M | 409,348 | 0.00% | 19q | +10.6%+$219.4K |
| BANK OF AMERICA CORP /DE/ | $2.1M | 391,997 | 0.00% | 18q | +517.9%+$1.8M |
| Invesco Ltd. | $1.9M | 342,166 | 0.00% | 5q | +819.3%+$1.7M |
| FORMULA GROWTH LTD | $1.6M | 300,000 | 0.57% | new | NEW |
| GROUP ONE TRADING LLC | $1.6M CALL+PUT | options only | 0.00% | 4q | OPTIONS |
| SG Americas Securities, LLC | $1.4M | 263,147 | 0.00% | 4q | +1766.6%+$1.4M |
| Mount Lucas Management LP | $1.4M | 250,000 | 0.48% | 5q | HELD |
| BOOTHBAY FUND MANAGEMENT, LLC | $1.3M | 233,379 | 0.02% | 4q | +69.4%+$519.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.2M | 226,007 | 0.00% | 5q | +5.2%+$60.2K |
| Informed Momentum Co LLC | $1.0M | 188,467 | 0.09% | new | NEW |
| Bank of New York Mellon Corp | $960.8K | 176,949 | 0.00% | 11q | +8.9%+$78.8K |
| Dauntless Investment Group, LLC | $888.2K | 163,570 | 0.70% | 2q | -64.6%-$1.6M |
| UBS Group AG | $832.3K | 153,273 | 0.00% | 7q | -73.3%-$2.3M |
| IMC-Chicago, LLC | $762.9K CALL+PUT | options only | 0.00% | 2q | OPTIONS |
| MORGAN STANLEY | $733.5K | 135,085 | 0.00% | 19q | -21.4%-$200.1K |
| KINGSWOOD WEALTH ADVISORS, LLC | $661.9K | 121,900 | 0.03% | 5q | +18.1%+$101.5K |
| Creative Planning | $596.9K | 109,925 | 0.00% | 3q | +319.4%+$454.6K |
| SIMPLEX TRADING, LLC | $583.7K CALL+PUT | options only | 0.00% | 4q | OPTIONS |
| Panoramic Capital, LLC | $543.0K | 100,000 | 0.23% | new | NEW |
| GSA CAPITAL PARTNERS LLP | $536.0K | 98,727 | 0.03% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $526.0K | 96,875 | 0.00% | 5q | -26.3%-$188.1K |
| Cetera Investment Advisers | $485.5K | 89,415 | 0.00% | 6q | -30.3%-$210.6K |
| HighTower Advisors, LLC | $466.1K | 85,838 | 0.00% | 10q | +2.3%+$10.4K |
| WHITE PINE CAPITAL LLC | $464.9K | 85,618 | 0.11% | new | NEW |
| T3 Companies, LLC | $434.4K | 80,000 | 0.46% | 3q | -28.5%-$173.2K |
| WELLS FARGO & COMPANY/MN | $426.3K | 78,510 | 0.00% | 5q | +94.2%+$206.8K |
| FMR LLC | $424.1K | 78,107 | 0.00% | 5q | +57.7%+$155.2K |
| DEUTSCHE BANK AG\ | $412.3K | 75,937 | 0.00% | 5q | +35.8%+$108.7K |
| State of Wyoming | $395.7K | 72,882 | 0.04% | 5q | -29.7%-$166.9K |
| Squarepoint Ops LLC | $395.6K | 72,862 | 0.00% | 4q | +205.7%+$266.2K |
| Fielder Capital Group LLC | $381.1K | 70,192 | 0.08% | 11q | HELD |
| PRICE T ROWE ASSOCIATES INC /MD/ | $336.0K | 61,750 | 0.00% | 5q | +27.9%+$73.3K |
| Allspring Global Investments Holdings, LLC | $278.5K | 51,282 | 0.00% | new | NEW |
| AQR CAPITAL MANAGEMENT LLC | $263.9K | 48,597 | 0.00% | 4q | +9.2%+$22.1K |
| MetLife Investment Management, LLC | $252.0K | 46,402 | 0.00% | 5q | +67.0%+$101.1K |
| Private Advisor Group, LLC | $249.0K | 45,850 | 0.00% | 4q | -51.3%-$262.4K |
| EntryPoint Capital, LLC | $244.2K | 44,972 | 0.06% | 3q | +88.5%+$114.7K |
| ALLIANCEBERNSTEIN L.P. | $219.2K | 71,400 | 0.00% | 5q | +15.9%+$30.1K |
| Innovative Asset Advisors Group, LLC | $195.5K | 36,000 | 0.09% | 2q | -23.8%-$61.1K |
| CITIGROUP INC | $194.1K | 35,747 | 0.00% | 13q | +754.8%+$171.4K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $190.7K | 35,111 | 0.00% | 5q | -6.1%-$12.3K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $184.3K | 33,935 | 0.00% | new | NEW |
| BARCLAYS PLC | $184.2K | 33,929 | 0.00% | 5q | +123.6%+$101.8K |
| ExodusPoint Capital Management, LP | $182.7K | 33,644 | 0.00% | 4q | +37.8%+$50.1K |
| Pekin Hardy Strauss, Inc. | $173.8K | 32,000 | 0.02% | 3q | HELD |
| Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P. | $160.4K | 29,534 | 0.02% | 3q | HELD |
| Arax Advisory Partners | $158.6K | 29,213 | 0.00% | 2q | +1.8%+$2.8K |
| Vanguard Global Advisers, LLC | $156.8K | 28,874 | 0.00% | 2q | HELD |
| Police & Firemen's Retirement System of New Jersey | $150.0K | 27,627 | 0.00% | 5q | HELD |
| PRUDENTIAL FINANCIAL INC | $145.7K | 26,825 | 0.00% | 4q | +1.1%+$1.6K |
| GLOBEFLEX CAPITAL L P | $141.8K | 26,111 | 0.02% | new | NEW |
| LPL Financial LLC | $135.2K | 24,892 | 0.00% | 4q | -59.2%-$196.4K |
| ROYAL BANK OF CANADA | $128.0K | 23,327 | 0.00% | 5q | +4.8%+$5.9K |
| AXQ CAPITAL, LP | $122.0K | 22,460 | 0.01% | new | NEW |
| FRANKLIN RESOURCES INC | $120.4K | 22,177 | 0.00% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $116.5K | 21,461 | 0.00% | 7q | +26.8%+$24.6K |
| INTECH INVESTMENT MANAGEMENT LLC | $111.5K | 20,531 | 0.00% | 5q | -8.7%-$10.6K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $111.5K | 20,530 | 0.00% | 5q | -6.2%-$7.4K |
| Russell Investments Group, Ltd. | $110.0K | 20,260 | 0.00% | 4q | +305.8%+$82.9K |
| WINTON GROUP Ltd | $102.1K | 18,800 | 0.00% | new | NEW |
| Granite Investment Partners, LLC | $98.5K | 18,148 | 0.01% | 2q | +22.4%+$18.0K |
| NEW YORK STATE COMMON RETIREMENT FUND | $97.2K | 17,900 | 0.00% | 5q | +219.6%+$66.8K |
| VOYA INVESTMENT MANAGEMENT LLC | $82.2K | 15,145 | 0.00% | 5q | +13.6%+$9.8K |
| Blackhawk Capital Partners, LLC | $81.5K | 15,000 | 0.03% | new | NEW |
| Fermata Advisors, LLC | $69.5K | 12,800 | 0.01% | new | NEW |
| FreeGulliver LLC | $67.1K | 12,350 | 0.02% | new | NEW |
| Engineers Gate Manager LP | $67.0K | 12,342 | 0.00% | 3q | -80.3%-$274.0K |
| Jump Financial, LLC | $66.8K | 12,300 | 0.00% | 4q | -89.4%-$565.4K |
| OSAIC HOLDINGS, INC. | $63.9K | 11,768 | 0.00% | 4q | +281.7%+$47.2K |
| R Squared Ltd | $62.3K | 11,482 | 0.03% | 3q | -29.8%-$26.4K |
| Wealthspire Advisors, LLC | $61.9K | 11,400 | 0.00% | new | NEW |
| Caitong International Asset Management Co., Ltd | $60.1K | 11,061 | 0.01% | 4q | -66.8%-$120.6K |
| AMERIPRISE FINANCIAL INC | $55.9K | 10,300 | 0.00% | new | NEW |
| ProShare Advisors LLC | $54.4K | 10,026 | 0.00% | 5q | -13.3%-$8.3K |
Showing the largest 100 of 123 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-02 | 2026-09-01 | Directors or officers departed or appointed | filing |
| 2026-08-21 | 2026-08-20 | Material agreement entered | filing |
| 2026-08-03 | 2026-07-28 | Charter or bylaws amended | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | Hively Brad | Director | Sold | 298,853 | $1.9M |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 15 | $2.6M | 410,796 | 4 | 6 | 3 | 0.0% |
| Q2 2026 | 123 | $236.5M | 40,091,308 | 26 | 51 | 26 | 8.0% |
| Q1 2026 | 117 | $128.9M | 38,763,656 | 23 | 47 | 26 | 7.8% |
| Q4 2025 | 116 | $153.1M | 38,483,210 | 27 | 46 | 25 | 10.5% |
| Q3 2025 | 112 | $124.7M | 34,695,339 | 39 | 32 | 22 | 2.9% |
| Q2 2025 | 79 | $66.1M | 32,260,072 | 42 | 24 | 4 | 0.0% |
| Q1 2025 | 43 | $19.4M | 17,051,932 | 16 | 7 | 6 | 0.0% |
| Q4 2024 | 30 | $4.6M | 14,712,600 | 4 | 8 | 3 | 0.0% |
| Q3 2024 | 33 | $6.7M | 20,587,186 | 1 | 12 | 5 | 0.0% |
| Q2 2024 | 38 | $8.6M | 18,699,269 | 5 | 8 | 10 | 0.4% |
| Q1 2024 | 44 | $27.5M | 17,396,865 | 6 | 13 | 9 | 0.0% |
| Q4 2023 | 45 | $37.8M | 18,460,233 | 11 | 14 | 8 | 0.5% |
| Q3 2023 | 36 | $21.2M | 15,107,496 | 10 | 10 | 8 | 0.0% |
| Q2 2023 | 37 | $7.7M | 13,916,345 | 13 | 4 | 18 | 0.0% |
| Q1 2023 | 38 | $23.0M | 33,907,932 | 6 | 16 | 8 | 0.0% |
| Q4 2022 | 39 | $39.2M | 23,526,069 | 6 | 19 | 5 | 0.0% |
| Q3 2022 | 38 | $108.3M | 23,349,233 | 4 | 23 | 7 | 0.0% |
| Q2 2022 | 36 | $110.9M | 21,901,273 | 17 | 7 | 9 | 0.0% |
| Q1 2022 | 28 | $159.3M | 21,128,201 | 9 | 8 | 7 | 0.0% |
| Q4 2021 | 21 | $199.9M | 21,118,138 | 18 | 0 | 0 | 0.0% |
| Q3 2021 | 1 | $2.5M | 252,439 | 1 | 0 | 0 | 0.0% |
