Vector Acquisition III and IV both filed notice with the sec of the intent to withdraw IPOs that were to raise $600 million.

Vector III registered in March 2021 to offer 25 million Class A ordinary shares at $10 each. Vector IV registered that same month to offer 35 million shares.

Both spacs were led by CEO and Chairman alex slusky, who founded vector capital in 1997. His first Vector SPAC completed a deal with Rocket Lab at a $4.1B valuation in August 2021, 

Vector III and IV had planned to list on the Nasdaq. Read more.

Source: Tech-Focused Vector Acquisition III and IV Withdraw IPOs