Just be glad you received your RSUs in the 2010s or later. Anyone who got the 1999 150th anniversary option (150 shares that stayed underwater for their entire vested life) up until probably 2008 never made a nickel on them.
I am still receiving health care benefits from my termination/retirement in 2019. Just got the last paycheck about 6 weeks ago. Be glad they pay it out monthly rather than lump sum, it saves you a lot in taxes. Talk to an investment advisor (more than one if you’e never had one outside of Pfizer) as to what to do with your 401k or pension dollars (if you have any). You really don’t want to screw that step up, it’s probably the most important thing you will do, along with lining up your next job if you are going to continue working.
The company did the right thing in bringing separation benefits back up to where they were initially when they started canning people in 2005. Plus the economy is certainly in better shape than it was for those poor folks who got cut around 2009/2010. My advice would be to get out of this industry if another opportunity presents itself. Perhaps if you are close to retiring and only need to work another 5-7 years you could stay in pharma. But otherwise, you’re setting yourself up for more rounds of downsizings/layoffs/mergers. Find something the government hasn’t destroyed yet, see how that works out for you.