U.S. stock futures were mostly flat this morning, with the Nasdaq 100 futures slipping around 0.01% on Tuesday.Shares of Sidus Space, Inc. (NASDAQ:SIDU) fell in pre-market trading after the company announced the pricing of public offering.Sidus Space announced the pricing of a best-efforts public offering of 19,230,800 shares of its Class A common stock at $1.30 per share.Sidus Space shares declined 39.2% to $1.39 in pre-market trading.Here are some other stocks moving lower in pre-market trading.Starfighte ...