S&P 500 7,623.68 −0.52%
Nasdaq 25,955.34 −0.21%
S&P/TSX 35,788.18 −0.52%
Apple 347.73 −0.14%
Nvidia 210.96 −0.59%
Microsoft 524.51 +0.66%
Shopify 236.24 −0.07%
Royal Bank 281.77 −0.36%
CAD/USD 0.7134 −0.11%
PRE-MKT · 04:40 ET
Market ClerkRecap
Mon Oct 26 · pre-market1 signal on Oct 2494 insider buys this week · $48.3MCIRO short report next: Oct 31The week ahead

CYCN

Korsana Biosciences, Inc.
NASDAQ · HEALTH CARE · PHARMACEUTICAL PREPARATIONS
No price history available

A free account adds a watchlist, alerts when insiders, Congress or short sellers move on your tickers, and a morning brief. Sign up

Who holds it

SEC 13F · LATEST QUARTER PER FUND
None of the 15 tracked funds disclose CYCN in their latest 13F. The funds we follow.

13F filings cover US-listed holdings and arrive up to 45 days after quarter end, so positions may have changed since.

Stakes of 5% or more

SCHEDULE 13D / 13G · LATEST PER HOLDER · TWO YEARS
J. Wood Capital Advisors LLC and 1 related0.1%
SCHEDULE 13G/A · filed Oct 15 · passive · EDGAR ↗
FMR LLC and 1 related6.9%
SCHEDULE 13G/A · filed Oct 7 · passive · EDGAR ↗
GENERAL ATLANTIC, L.P. and 16 related6.8%
SCHEDULE 13G · filed Sep 18 · passive · EDGAR ↗
Wellington Biomedical Innovation Master Investors (Cayman) II, L.P.6.1%
SCHEDULE 13G · filed Sep 16 · passive · EDGAR ↗
Venrock Healthcare Capital Partners III, L.P. and 8 related9.9%
SCHEDULE 13D · filed Sep 15 · investment · EDGAR ↗

“The Reporting Persons purchased the aforementioned securities for investment purposes with the aim of increasing the value of their investments and the Issuer. Subject to applicable legal requirements, one or more of the Reporting Persons may purchase additional securities of the Issuer from time to…”

Fairmount Funds Management LLC and 4 related20.0%
SCHEDULE 13D · filed Sep 11 · investment · EDGAR ↗

“The Reporting Persons own 19.99% of the Company in the aggregate, based upon the Company's aggregate outstanding shares as of September 8, 2026. The Reporting Persons' securities include (a) 2,691 shares of Common Stock issuable upon the exercise of options held directly by Mr. Kiselak that are curr…”

A 13D means the holder crossed 5% with intent beyond passive ownership and had to state a purpose; a 13G is the passive version. Every new 13D on tracked companies.

Watch CYCN. Know when insiders buy.
One email the day a filing lands. Free.