Are there any NYSE database/data libraries which include a trader/broker/DOT ID field for each trade execution? I made tens of thousands of listed equity trades at a defunct prop firm from 99-03, but did not have the foresight to save anything but monthly P&L summaries. I had a unique 3 letter DOT ID, but have no idea whether this is captured in any historical data, at any level. Any answer or suggestion would be ENORMOUSLY appreciated, even if it is insulting!
I would expect no. Even if you contacted the exchange and asked for trades for a broker dealer, they would not provide that as you are not the account holder with that MPID.