In Novo's case, they have two kinds of long-acting insulin analogue taken 1-2 times per day for both T1 and T2; they have to my knowledge the only ultra-long-acting insulin on the market, taken once every 2-3 days, most appropriate for T2, but also viable for some T1 lifestyles; they have very-rapid-acting insulin for T1 diabetics only, and they have older kinds of insulins appropriate for older patients.
They offer all of these products in good supplies. I've never seen or heard of a Novo product's being unavailable at the pharmacy. So, as far as I can tell, their only influence on insulin prices is downward pressure, not upward pressure. Every new product they produce lowers the price of insulin despite industry-wide changes.