> Virtually any amount of money available to you personally is
> mouse droppings to your prospective employer.
> They will not feel offended if you ask for it.
Two comments.(a) I interviewed with Wealthfront last year. They offered $160K, which was lower cash comp than any of my other offers. I tried to open the door to negotiation. The recruiter and the dev lead then got on the phone with me to awkwardly explain that no, they don't negotiate with candidates, and what makes me feel like their offer is inadequate? Would I really want to miss the opportunity to work for an exciting company over some marginal sum of money? Yes.
(b) The money you ask for is a pittance on the company's balance sheet, but you're not negotiating with the company. You're negotiating with someone in recruiting. From hanging out with HR, they talk a lot of shit about candidates who they consider difficult, and have a lot of ways of making the experience less pleasant for the candidate, even if it's not clear what this means for the company's ability to attract talent.