Who owns Starling Oncology, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of STLN from SEC Form 13F filings across 119 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 119 institutions disclosed 40.1M shares of Starling Oncology, Inc. worth $217.6M — about 38.9% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
119
13F holders
$217.6M
value, 2026 filers
38.9%
of shares outstanding (40.1M sh)
26
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of STLN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.7M | $25.8M | 0.0% | 4.6% | +7.5% |
| 2 | DEERFIELD MANAGEMENT COMPANY, L.P. | 3.4M | $18.2M | 0.2% | 3.3% | 0.0% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 3.3M | $17.7M | 0.0% | 3.2% | -6.1% |
| 4 | JOSH ARNOLD INVESTMENT CONSULTANT, LLC | 2.5M | $13.4M | 8.4% | 2.4% | 0.0% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $10.3M | 0.0% | 1.8% | +8.1% |
| 6 | GOLDMAN SACHS GROUP INC | 1.7M | $9.4M | 0.0% | 1.7% | +28.4% |
| 7 | WEXFORD CAPITAL LP | 1.7M | $9.3M | 1.2% | 1.7% | 0.0% |
| 8 | STATE STREET CORP | 1.6M | $8.4M | 0.0% | 1.5% | +6.3% |
| 9 | Nuveen, LLC | 1.4M | $7.6M | 0.0% | 1.4% | +1378.8% |
| 10 | RENAISSANCE TECHNOLOGIES LLC | 1.4M | $7.4M | 0.0% | 1.3% | +51.3% |
| 11 | CenterBook Partners LP | 1.2M | $6.7M | 0.3% | 1.2% | -20.8% |
| 12 | MARSHALL WACE, LLP | 1.2M | $6.6M | 0.0% | 1.2% | +257.2% |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.0M | $5.5M | 0.0% | 1% | +16.7% |
| 14 | CITADEL ADVISORS LLC | 894,101 | $4.9M | 0.0% | 0.9% | +47.0% |
| 15 | JANE STREET GROUP, LLC | 852,163 | $4.6M | 0.0% | 0.8% | +100.6% |
| 16 | BRC Group Holdings, Inc. | 742,593 | $4.0M | 0.9% | 0.7% | -20.1% |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 710,888 | $3.9M | 0.0% | 0.7% | +69.5% |
| 18 | TWO SIGMA INVESTMENTS, LP | 668,839 | $3.6M | 0.0% | 0.6% | +117.3% |
| 19 | NORTHERN TRUST CORP | 591,534 | $3.2M | 0.0% | 0.6% | +5.9% |
| 20 | ACADIAN ASSET MANAGEMENT LLCNEW | 567,001 | $3.1M | 0.0% | 0.6% | new |
| 21 | VANGUARD FIDUCIARY TRUST CO | 502,049 | $2.7M | 0.0% | 0.5% | +3.9% |
| 22 | FourWorld Capital Management LLC | 499,196 | $2.7M | 2.5% | 0.5% | 0.0% |
| 23 | Manatuck Hill Partners, LLCNEW | 450,000 | $2.4M | 0.8% | 0.4% | new |
| 24 | Walleye Capital LLCNEW | 445,832 | $2.4M | 0.0% | 0.4% | new |
| 25 | Inspire Investing, LLCNEW | 424,008 | $2.3M | 0.1% | 0.4% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.