Why do you need to know the gender of the partner? That it not important to know, nor does it matter. This just tells me you have preconceived notions about how they should act and want to formulate your response based on their gender. And if any of the post is confusing to you, you just have poor reading comprehension. :)
“Lockup” is an investment term. When a company has an IPO (Initial Public Offering, which is the day they become publically available for stock trades), the big shareholders and company employees who are invested ahead of the IPO are “locked” from selling their shares for a certain number of days. This isn’t required, but most companies having an IPO end up having a lockup period set as well.
In regards to this headline, it just means that the initial investors and big shareholders are now free to sell their shares, which they are apparently doing in droves!