I have $300K in retirement funds and $40K in savings.
My home is paid off and is currently worth about $700K.
No debt.
It's good that you have no debt and a secure home. You would need to think about what kind of income you need to sustain your lifestyle in retirement, once your salary/wage ends. If you have a pension coming, factor that in, too, along with expected social security payments. Then, your disbursement from the Apple stock will supplement that retirement income.
Also, you can think about what retirement might look like. Typically, in the first years your expenses may be higher because you are traveling more, or doing more hobbies and activities. In the next decade (?) your expenses go down because you're getting older and slowing down. Finally, your expenses go back up because your medical costs will go up in the last years.
If you don't have a pressing need for the money now, then put it away for when you need it later.
-PJ
Are you single, I have a couple of granddaughters that are knock outs in the brains and looks department....