Elon Musk’s SpaceX rocket venture has filled out its latest funding round by attracting another $100 million in investments since August, according to documents filed with the Securities and Exchange Commission.
The amended forms bring the total value of the funding round that began in July to just under $450 million. Equidate, a service that estimates the worth of privately held companies such as SpaceX, puts the company’s total valuation at $21.5 billion.
SpaceX didn’t disclose who’s investing in the current Series H round, but the SEC filings suggest that four new investors joined in over the past couple of months. August’s filing said 21 investors were participating, but that figure rose to 25 in the documents filed on Nov. 27.