I believe a lot of pro rata rights have minimums (i.e. you have to have at least 500,000 shares) to have that right. most series a term sheets that I've seen h

I believe a lot of pro rata rights have minimums (i.e. you have to have at least 500,000 shares) to have that right. most series a term sheets that I've seen have set the minimums above any threshold that an angel would meet