The short answer is YES --the IRS will also get copies of those documents and will be looking for them to be entered into your tax return,
A 1099 DIV specifically means that the account PAID money to you. If it was re-invested or direct deposited to another account you still did receive material financial benefit of the funds --even if you didn't actually receive cash.
A 1099 B reports the sale of a security. You would have to look at the specific form to determine how much money was involved. Again, as noted above, if it was re-invested or direct deposited to another account you still did receive material financial benefit of the funds --even if you didn't actually receive cash.
