Who owns Korsana Biosciences, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CYCN from SEC Form 13F filings across 21 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, 21 institutions disclosed 3.3M shares of Korsana Biosciences, Inc. worth $11.2M — about 77.6% of shares outstanding; the largest disclosed holder is Kalehua Capital Management LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
21
13F holders
$11.2M
value, 2026 filers
77.6%
of shares outstanding (3.3M sh)
9
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 CYCN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Kalehua Capital Management LLCNEW | 1.7M | $5.6M | 4.0% | 38.8% | new |
| 2 | FMR LLC | 649,547 | $2.2M | 0.0% | 15.3% | +13603.5% |
| 3 | Balyasny Asset Management L.P.NEW | 317,511 | $1.1M | 0.0% | 7.5% | new |
| 4 | ADAR1 Capital Management, LLCNEW | 298,757 | $1.0M | 0.0% | 7% | new |
| 5 | BRAIDWELL LPNEW | 156,890 | $531,857 | 0.0% | 3.7% | new |
| 6 | CITADEL ADVISORS LLC | 59,795 | $202,705 | 0.0% | 1.4% | +227.4% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 45,850 | $155,471 | 0.0% | 1.1% | -45.8% |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 30,915 | $104,802 | 0.0% | 0.7% | +91.6% |
| 9 | Rangeley Capital, LLCNEW | 24,310 | $82,411 | 0.1% | 0.6% | new |
| 10 | HRT FINANCIAL LPNEW | 22,054 | $74,000 | 0.0% | 0.5% | new |
| 11 | BlackRock, Inc. | 16,797 | $56,942 | 0.0% | 0.4% | 0.0% |
| 12 | DIMENSIONAL FUND ADVISORS LPNEW | 11,724 | $39,745 | 0.0% | 0.3% | new |
| 13 | VANGUARD FIDUCIARY TRUST CO | 7,353 | $24,927 | 0.0% | 0.2% | 0.0% |
| 14 | UBS Group AG | 3,135 | $10,627 | 0.0% | 0.1% | -7.5% |
| 15 | Tower Research Capital LLC (TRC)NEW | 1,849 | $6,268 | 0.0% | 0% | new |
| 16 | GROUP ONE TRADING LLC | 192 | $651 | 0.0% | 0% | 0.0% |
| 17 | OSAIC HOLDINGS, INC. | 130 | $440 | 0.0% | 0% | 0.0% |
| 18 | Activest Wealth Management | 100 | $339 | 0.0% | 0% | 0.0% |
| 19 | BARCLAYS PLCNEW | 87 | $295 | 0.0% | 0% | new |
| 20 | WHI TRUST Co LLC | 72 | $244 | 0.0% | 0% | 0.0% |
| 21 | BNP PARIBAS FINANCIAL MARKETS | 4 | $14 | 0.0% | 0% | -20.0% |
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.