Naw, I don't see Magma going anytime soon, what with chip sales projections showing in excess of 10% for the coming years. Yeah but their strength in the backend process is not working out with such package deals these bug 3 sellout their tools for.
Magma stock has gone up quite a bit in recent months. So not a good time to buy. Current market cap is 530M and one would need to shell out atleast 700-800M to buy Magma. I doubt whether SYN or CDNS will want to spend that much right now.
IIRC Apache is not listed yet. If the company is not listed, many a times the management asks to return the stock at a higher price while the employee leaves. If that didn't happen, the ex-employee should get a cut at the acquired value.