Companies: 10,795·Total market cap: $144.5T
Sionna Therapeutics, Inc.

Sionna Therapeutics, Inc.

SIONNASDAQHealthcare● Active
$34.08
$-1.29(-3.64%)
Market Cap$1.5B
P/E Ratio—
52W High$48.445
52W Low$13.51
SEC Filings

Sionna Therapeutics, Inc. (SION) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0002036042 · SION · NASDAQ · as of Jun 8, 2026

Filing snapshot

204
Total Filings
144/A
Latest Form
2026-06-01
Most Recent
2025
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0002036042 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-02
Fiscal Year End
Mar 2, 2026
Accession No.
0001628280-26-012996
Primary Document
sionna-20251231.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0002036042 · Accession 0001628280-26-012996

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-12
View 10-Q on SEC
8-KCurrent Report
8-K
2026-05-12Material Event
View 8-K on SEC
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-05-15
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-05-12
View
10-QQuarterly Report
10-Q
2026-05-12
View
8-KCurrent Report
8-K
2026-05-12
View
ARSARS
ARS
2026-04-27
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-27
View
DEF 14AProxy Statement
DEF 14A
2026-04-27
View
SCHEDULE 13D/ASCHEDULE 13D/A
SCHEDULE 13D/A
2026-04-20
View
S-8Employee Stock Plan Registration
S-8
2026-03-02
View
S-3ASRS-3ASR
S-3ASR
2026-03-02
View
10-KAnnual Report
10-K
2026-03-02
View
8-KCurrent Report
8-K
2026-03-02
View
SCHEDULE 13D/ASCHEDULE 13D/A
SCHEDULE 13D/A
2025-11-07
View
10-QQuarterly Report
10-Q
2025-11-05
View
8-KCurrent Report
8-K
2025-11-05
View
Showing 1–15 of 74 filingsForm 4 / 144 hidden· 204 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0002036042  |  Exchange: NASDAQ · Healthcare

Sionna Therapeutics, Inc. (NASDAQ: SION) has submitted 204 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2025. As a Healthcare sector company with CIK 0002036042, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Sionna Therapeutics, Inc.'s most comprehensive regulatory disclosure. The most recent Sionna Therapeutics, Inc. 10-K was filed on 2026-03-02 for fiscal year ending 2026. Historical SION 10-K annual reports are available from 2024 through 2026.

Investors researching Sionna Therapeutics, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
Related Companies SEC Filings — Healthcare
VERA SEC Filings →CLDX SEC Filings →ZYME SEC Filings →IMNM SEC Filings →ABCL SEC Filings →ARDX SEC Filings →MAZE SEC Filings →BHVN SEC Filings →
→ SION Financials→ SION Earnings→ SION Insider Trades

Frequently Asked Questions

SION SEC Filings · 8 questions

Sionna Therapeutics, Inc. (SION) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 204 filings and access original documents at no cost. Sionna Therapeutics, Inc.'s CIK is 0002036042.

SION SEC filingsSionna Therapeutics, Inc. SEC documentsfind SION 10-K