Sinovac Receives Nasdaq Delisting Notice Over Late 20-F Filing

Sinovac Receives Nasdaq Delisting Notice Over Late 20-F Filing

Sinovac Biotech Ltd. (NASDAQ: SVA) announced it received a delisting determination letter from Nasdaq for failing to comply with Listing Rule 5250(c)(1) by not filing its 2024 Form 20-F annual report by the extension deadline of 11 Nov 2025, following the resignation of auditor Grant Thornton in April. The company intends to request a hearing before the Nasdaq Hearing Panel to remain listed.

Delisting Notice Details

ItemDetail
CompanySinovac Biotech Ltd. (Nasdaq: SVA)
Notice Date12 Nov 2025
Delisting RuleNasdaq Listing Rule 5250(c)(1) – Timely SEC filing requirement
ViolationFailure to file Form 20-F for year ended 31 Dec 2024
Extension Deadline11 Nov 2025 (180‑day grace period expired)
Potential Delisting21 Nov 2025 (unless hearing requested and granted)
Auditor ChangeGrant Thornton resigned 15 Apr 2025; UHY LLP engaged as replacement

Compliance Timeline

DateEvent
15 Apr 2025Grant Thornton resigns as independent auditor
30 Apr 2025Original Form 20‑F filing deadline
11 Nov 2025Extension deadline to regain compliance (expired)
12 Nov 2025Nasdaq issues delisting determination letter
21 Nov 2025Suspension and delisting effective date (if no hearing)
TBDHearing request and 20‑F filing submission to Nasdaq

Company Response

  • Hearing Request: Sinovac intends to timely request a hearing before the Nasdaq Hearing Panel to present its plan to regain compliance
  • New Auditor Engagement: UHY LLP has been engaged and is working diligently to complete the 2024 audit and file the Form 20‑F as soon as possible
  • Management Statement: Company emphasizes commitment to resolving the filing delay and maintaining Nasdaq listing

Market Impact & Outlook

MetricValue
Market Cap (Pre‑Notice)~$450 million
Share Price ImpactExpected 15‑25% decline on delisting risk premium
OTC TradingIf delisted, shares would trade on OTC markets, reducing liquidity and institutional ownership
Reputational RiskAuditor resignation and filing delay may raise corporate governance concerns among investors
Recovery TimelineIf 20‑F filed and hearing successful, relisting process could take 3‑6 months
  • Investor Sentiment: The delisting notice adds to existing concerns about Sinovac’s COVID‑19 vaccine revenue sustainability and regulatory transparency
  • Institutional Impact: Index funds (e.g., MSCI, FTSE) may be forced to sell if delisting proceeds, creating additional selling pressure

Forward‑Looking Statements
This brief contains forward‑looking statements regarding Sinovac’s ability to request a hearing, file its Form 20‑F, and maintain its Nasdaq listing. Actual outcomes may differ materially due to risks including auditor completion delays, Nasdaq panel decisions, and regulatory complications.-Fineline Info & Tech