US IPO Pipeline SEC S-1 Filings — April 13, 2026

13-04-2026

Tivic Health Systems pivoted to a biopharma focus in 2025 by securing exclusive worldwide licenses for Entolimod and Entolasta from Statera Biopharma, assets supported by $140 million in prior capital including $35.6 million in non-dilutive funding, and launched Velocity Bioworks as a CDMO subsidiary in December 2025. However, the company exited its consumer healthtech business, incurring approximately $347,000 in charges during 2025 with $20,000 to $50,000 more expected, and entered a $50.0 million ELOC with Tumim that carries dilution risks for existing shareholders. Reverse stock splits were implemented 1-for-17 in March 2025 and 1-for-100 in 2023 to maintain Nasdaq listing.

• ·FDA granted Fast Track and Orphan Drug designations to Entolimod for Acute Radiation Syndrome (ARS).
• ·Exclusive licensing agreement with Statera executed in February 2025; option for neutropenia indication exercised.
• ·Tumim Purchase Agreement entered February 6, 2026, for up to $50.0M over 24 months, with 97% VWAP pricing option.
• ·Company qualifies as Emerging Growth Company and Smaller Reporting Company, electing reduced disclosure requirements.
• ·Principal executive offices at 1305 E. Houston St., Building 1, Suite 311, San Antonio, Texas 78205.

13-04-2026

General Catalyst Global Resilience Merger Corp., a blank check company incorporated in the Cayman Islands, filed an S-1 registration statement for an initial public offering of 35,000,000 GRAIL securities at $10.00 each, aiming to raise $350,000,000, with a focus on business combinations in aerospace, defense, and national security sectors. The sponsor, GCGR Sponsor LLC, will purchase 800,000 private placement GRAIL securities for $8,000,000, and initial shareholders hold 5,031,250 Class B alignment shares purchased for $25,000. Underwriters have a 45-day option for up to 5,250,000 additional securities; the company has a 24-month (extendable to 27 months) window to complete an initial business combination.

• ·Warrants exercisable 30 days post-initial business combination, expire 5 years after or upon redemption/liquidation.
• ·Completion window: 24 months from IPO closing (extendable to 27 months if LOI/agreement executed within 24 months).
• ·Private placement warrants identical to public except non-redeemable; private shares have no redemption/liquidation rights.
• ·Alignment shares convert to Class A over 10 annual measurement periods based on total return above price threshold.

13-04-2026

Rare Earths Americas, Inc., an exploration-stage company focused on heavy rare earth elements projects in the US and Brazil, filed an S-1 registration statement on April 13, 2026, for its initial public offering of common stock to list on NYSE American under 'REA', with an estimated price range left blank and underwriting discounts of 7.0% for certain investors and 3.5% for existing shareholders/affiliates. Key assets include the Shiloh Project (Georgia, US) with high-grade TREO up to 30.98% in trenches, Alpha Project (Brazil) with 201.7 Mt inferred resource at 1,520 ppm TREO, and Constellation Project (Brazil) with 266.2 Mt inferred at 2,637 ppm TREO; the company has no revenue to date and highlights high investment risk.

• ·Shiloh Project on private land in Georgia, US, with monazite mineralization and infrastructure advantages.
• ·Alpha Project covers 100 km² deposit area on nine contiguous concessions.
• ·Constellation Project in Poços de Caldas alkaline district, resource limited to 16 km² currently.
• ·Homer Project drilling campaign started Q1 2026; potential for rare earths and niobium.
• ·Company incorporated in Texas, SIC 1000, EIN 39-4918133, principal office in Manchester, GA.
• ·Emerging growth company and smaller reporting company electing reduced reporting requirements.

13-04-2026

Rumble Inc. filed an S-4 registration statement on April 13, 2026, outlining a proposed business combination to acquire Northern Data's Taiga Cloud and Ardent Data Centers businesses through a newly formed Northern Data Holdco subsidiary in exchange for Rumble Class A Common Shares, excluding the Peak Mining Bitcoin assets. The transaction follows Tether's $775 million strategic investment in Rumble on February 7, 2025 (103,333,333 shares at $7.50 each), and involved extensive due diligence and negotiations starting February 2025 with advisors including Guggenheim Securities, Jefferies, and various legal firms. No financial performance metrics or declines are disclosed in the filing.

• ·Confidentiality agreement between Rumble and Northern Data signed February 14, 2025 (24-month term, 18-month standstill).
• ·Rumble Class A Common Shares trade on Nasdaq under 'RUM'; warrants under 'RUMBW'.
• ·Northern Data Shares trade on Munich Stock Exchange (m:access) and Frankfurt Xetra under 'NB2'.