A large, late-stage private funding round, like Anthropic's just before filing to go public, serves a strategic purpose beyond capital. It establishes a valuation floor with sophisticated investors, de-risks the IPO process, and helps build the order book by giving crossover funds a discounted entry point.

OpenAI's confidential IPO filing is a strategic move to provide "optionality" and combat talent drain to rival Anthropic. By allowing employees to sell shares at the last private valuation, they offer liquidity and counter the appeal of Anthropic's potential earlier public debut, framing the IPO as a flexible future step rather than an immediate plan.

In a powerful signal of internal optimism, Anthropic's employee stock tender offer failed to reach its full allocation. Mirroring a similar trend at OpenAI, employees are holding onto their shares—even those valued at a $380B valuation—reflecting a strong belief that the company's value will skyrocket leading up to an IPO.

For highly-capitalized companies like SpaceX and OpenAI, bankers are designing new IPO structures. Instead of standard 90-180 day lockup periods, they're planning staggered share releases over a longer timeframe to manage immense selling pressure from a large base of private shareholders and prevent post-IPO stock volatility.

OpenAI and Anthropic are filing for IPOs not to rush to market, but to create the option to go public when conditions are most favorable. This strategic move allows them to retain private company flexibility while being prepared for a public offering, reframing the common "IPO race" narrative.

The SpaceX IPO was carefully orchestrated to align its multi-stage share lockup expirations with its inclusion in major indices like the Nasdaq 100. This is a sophisticated financial maneuver designed to create significant, built-in buy pressure from index funds at the exact moment that large blocks of shares become available for sale, helping to stabilize the price.

For trillion-dollar private companies like SpaceX going public, the traditional 90-180 day lockup period is inadequate. The massive volume of insider shares hitting the market at once could crash the stock. Investment bankers are now designing staggered lockup releases to manage this unprecedented liquidity event.

To combat insider trading risks from its transparent culture, Anthropic is exploring preset stock trading plans (10b5-1)—usually reserved for executives—for its entire workforce. This highly unusual move would restrict employee flexibility but protect the company and individuals from legal issues after its IPO.

SpaceX's IPO is unique because its employees and early investors have had access to regular liquidity through secondary sales for years. This 'quasi-public' status may mean less pent-up demand to sell shares post-lockup, potentially altering the typical volatility seen after major tech IPOs.