Sionna Therapeutics, Inc. (SION) — research page
US · us-cm-kg/NASDAQ/SION · as of 2026-11-08
Identity and listing
Sionna Therapeutics, Inc. is listed on NASDAQ under the ticker SION, with ISIN US8294011080. The LEI is not on the record (no GLEIF record with the exact legal name in jurisdiction US-DE). The security type is Corporate, the sector is 2834 Pharmaceutical Preparations, and the jurisdiction is United States, Delaware. The segment is not on the record. The issuer is listed and not halted.
| field | value | source · read date |
|---|---|---|
| name | Sionna Therapeutics, Inc. | source · 2026-11-08 |
| exchange | NASDAQ | source · 2026-11-08 |
| ticker | SION | source · 2026-11-08 |
| ISIN | US8294011080 | source · 2026-10-05 |
| LEI | not on the record | |
| security type | Corporate | source · 2026-11-08 |
| segment | not on the record | |
| sector | 2834 Pharmaceutical Preparations | source · 2026-11-08 |
| jurisdiction | United States — Delaware | source · 2026-11-08 |
| status | listed, not halted | source · 2026-11-08 |
The disclosure read
The record holds 92 filings across 38 filing days in the window 2025-11-08 to 2026-11-08. Of these, 45 are directors' dealings, 35 are regulatory filings, 6 are results, 3 are AGM/EGM filings, 1 is corporate news, 1 is a director change and 1 is a prospectus. The median gap between filing days is 4 days. The latest filing is a regulatory filing dated 2026-09-21, 48 days before the record date. The NASDAQ medians are 52 filings, a cadence gap of 6.0 days and a latency of 5.0 days across 4,359 issuers. The sector medians are 63.0 filings, a cadence gap of 6.0 days and a latency of 4.0 days across 526 issuers.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 92 | 4 | 48 |
| exchange median: NASDAQ (4359 issuers) | 52 | 6 | 5 |
| sector median: 2834 Pharmaceutical Preparations (526 issuers) | 63 | 6 | 4 |
| date | type | category | filing |
|---|---|---|---|
| 2026-09-21 | regulatory_filing | SCHEDULE 13D/A | SCHEDULE 13D/A |
| 2026-09-21 | directors_dealings | 4 | 4 |
| 2026-09-18 | directors_dealings | 4 | 4 — PRIMARY DOCUMENT |
| 2026-09-18 | directors_dealings | 4 | 4 — PRIMARY DOCUMENT |
| 2026-09-18 | directors_dealings | 4 | 4 — PRIMARY DOCUMENT |
window 2025-11-08 to 2026-11-08 · the node's disclosure lines, as get_filings serves them
Auditor
The auditor of record is Deloitte & Touche 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 (EDGAR states no dated change of state of incorporation on a filing line). The segment move is not on the record (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, with the chapter as of 2026-11-04.
rule acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability
Coverage
No research houses were found on the issuer's investor-relations page.
Open research
No openly published research notes were found.
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.
| licensor | entitlement | title | date | source |
|---|---|---|---|---|
| none loaded |
As-of depth
The sealed years that hold the issuer are 2024, 2025 and 2026. 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.
- 10.1
- https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)
- 10.2
- https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)
- 10.3
- https://data.sec.gov/submissions/CIK0002036042.json (identity.jurisdiction)
- 10.4
- https://mcp.us-cm-kg.ai/events/NASDAQ/SION (the disclosure lines)
- 10.5
- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)
- 10.6
- https://www.sec.gov/Archives/edgar/data/2036042/000162828026012996/sionna-20251231.htm (the auditor)
- 10.7
- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.8
- https://mcp.us-cm-kg.ai/record/NASDAQ/SION (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getissuer.ai/mcp with {"isin":"US8294011080"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:59194c468f843fe1.