Castelion Corp filed a Form D with the SEC, reporting $647.0M sold, of a $800.0M offering.

{
  "signal_id": "fd-0001973707-26-000001",
  "signal_type": "sec-form-d-funding",
  "signal_subtype": "newFilingCompany",
  "detected_at": "2026-08-28T00:00:00+00:00",
  "company": {
    "name": "Castelion",
    "domain": "castelion.com"
  },
  "data": {
    "cik": "0001973707",
    "phone": "204-841-4390",
    "detail": "This fundraise suggests Castelion is in an aggressive growth and scale-up phase, likely using capital to expand R&D, testing infrastructure, and high-volume production capabilities. Their emphasis on rapid iteration, vertical integration, and manufacturability points to demand for automation, avionics, materials, test systems, and industrial equipment vendors that can support complex defense manufacturing programs.",
    "topics": [
      "Hypersonic Weapons",
      "Defense Manufacturing",
      "Private Funding",
      "Advanced Hardware",
      "Aerospace & Defense"
    ],
    "summary": "Castelion Corp designs and manufactures next-generation military systems, with a focus on affordable hypersonic weapons and scalable defense hardware. The company reported a massive Form D raise of $800.0 million, with $647.0 million sold to 17 investors, making this a major signal for vendors selling into defense manufacturing and advanced hardware.",
    "website": "https://castelion.com",
    "location": "Torrance, CALIFORNIA",
    "file_date": "2026-08-28",
    "form_type": "D",
    "relevance": 0.95,
    "confidence": "high",
    "exemptions": [
      "06b"
    ],
    "filing_url": "https://www.sec.gov/Archives/edgar/data/1973707/000197370726000001/",
    "source_url": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001973707&type=D&dateb=&owner=include&count=40",
    "entity_name": "Castelion Corp",
    "entity_type": "Corporation",
    "jurisdiction": "DELAWARE",
    "primary_topic": "Defense Tech Fundraise",
    "revenue_range": "Decline to Disclose",
    "business_state": "CA",
    "industry_group": "Other Technology",
    "related_persons": [
      {
        "name": "Charles Hargis",
        "roles": [
          "Executive Officer",
          "Director",
          "Promoter"
        ]
      },
      {
        "name": "Sean Pitt",
        "email": "s***@castelion.com",
        "roles": [
          "Executive Officer",
          "Director",
          "Promoter"
        ],
        "linkedin_url": "linkedin.com/in/sean-pitt-036935a9"
      },
      {
        "name": "Andrew Kreitz",
        "roles": [
          "Executive Officer",
          "Director",
          "Promoter"
        ]
      },
      {
        "name": "Alex Poulin",
        "roles": [
          "Director"
        ]
      }
    ],
    "total_investors": 17,
    "total_remaining": 152999494,
    "accession_number": "0001973707-26-000001",
    "securities_types": [
      "Equity"
    ],
    "business_location": "El Segundo, CA",
    "total_amount_sold": 647000679,
    "resolved_entity_name": "Castelion",
    "resolved_entity_type": "operating_company",
    "total_offering_amount": 800000173,
    "year_of_incorporation": "2022",
    "company_domain_confidence": 10,
    "has_non_accredited_investors": false
  }
}

curl https://signals.autobound.ai/v1/signals/fd-0001973707-26-000001 \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"castelion.com","limit":20}'