The page is the record's research on the issuer — no analyst, no rating, no view.

# Korsana Biosciences, Inc. (NASDAQ: KRSA) — research page

As of 2026-11-08 · us-cm-kg · record version 1

## Identity and listing

The issuer is Korsana Biosciences, Inc., listed on NASDAQ under ticker KRSA, with ISIN US23255M3034. Its LEI is not on the record, as no GLEIF record carries the exact legal name in jurisdiction US-MA. The security type is Corporate, the segment is not on the record, the sector is 2834 Pharmaceutical Preparations, and the jurisdiction is United States, Massachusetts. The issuer is listed and not halted.

## The disclosure read

The record holds 59 filings in the twelve months to 2026-11-08, across 36 filing days. Filings by type are 3 agm_egm, 6 corporate_news, 15 directors_dealings, 5 prospectus, 22 regulatory_filing and 8 results. The median gap between filing days is 5 days. The latest filing is a results filing dated 2026-11-05, 3 days before the record date. On NASDAQ the median cadence gap is 6.0 days, the median filings count is 52, and the median latency is 5.0 days across 4359 issuers. In the sector 2834 Pharmaceutical Preparations the median cadence gap is 6.0 days, the median filings count is 63.0, and the median latency is 4.0 days across 526 issuers.

## Auditor

The auditor of record is Ernst & Young LLP, located in Boston, Massachusetts. The record holds no auditor changes.

## Events and halts

The record holds no listing, delisting or name change lines. The domicile change is not on the record, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as the exchanges' tier transfers are not EDGAR filings. The halt flag reads listed, not halted.

## Orderability

The outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter was as of 2026-11-04.

## Coverage

No research houses were found on the issuer's investor-relations pages read. The count is 0.

## Open research

No openly published research notes were found on the record. The count is 0.

## Licensed

Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.

## As-of depth

The record holds sealed years 2021, 2022, 2023, 2024, 2025 and 2026 for this issuer. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12.

## Sources

8 source pages are named on this page; every value above carries its own source page and read date in the numbers.

- https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)
- https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)
- https://data.sec.gov/submissions/CIK0001755237.json (identity.jurisdiction)
- https://mcp.us-cm-kg.ai/events/NASDAQ/KRSA (the disclosure lines)
- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)
- https://www.sec.gov/Archives/edgar/data/1755237/000119312526132193/cycn-20251231.htm (the auditor)
- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)
- https://mcp.us-cm-kg.ai/record/NASDAQ/KRSA (the record)

---
Allooloo Technologies Corp. · https://getresearch.ai/us/NASDAQ/KRSA · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp