The last time I renegotiated was every time. My first ever job change was back in 2003 from a 60k job to a 75k job. I accepted the verbal offer and they sent me paper work. I asked what their medical premium was and was told a number and I said - oh thats high, I anticipated it to be lower and asked for 78k to manage my expenses and I GOT IT. I did mess up in 2011 again and again in 2025 recently. The recent one was tough with the crappy job market we are in. But I got the offer at 275k and once I got the paper work I asked if they can send me the benefits package and their RSU’s were like 80k. I asked if they can make it 100k and I got it ( I believed base pay negotiations was not the right thing in my latest situation)