And when I was at IBM (left ten years ago), they had just put in a change to the 401k match where they didn’t contribute the match every pay period but rather all at once on December 31st... assuming you were still employed on December 15th of that year. Quit or get fired before that, kiss your 6% (some of the older folks had 8% I think) goodbye!
I was there during that time too, drove me crazy when they announced that change. Pay wasn't competitive and now you're messing with our retirement? I'm sure someone in finance got rewarded for making it sound like benefits weren't changing but actually paying out significantly less averaged over the whole work force. I ended up finding another company in the area doing my same work for double the salary, but it costs me 10 months of 401K matching!
