That said, you can verify my math with the share ownership from the most recent 10K-A, Jason Hope's last Form 13, the open short interest listed on Nasdaq.com, and the daily volume from ChartExchange. If you don't know about volume & MM's, I need to figure out where to point you... a good book on how markets work, I guess. You can check OpenInsider.com for RZLT to see proof of 2 companies buying stock but not... Source: 10 months ago

Not for finding the next NVDA, but this is a cool website http://openinsider.com/. Source: about 1 year ago

I've been buying a little bit of any regional bank that's down if they show up on openinsider.com with a recent cluster of insider buying. I figure their CFO knows best. Source: about 1 year ago

I also like OpenInsider for tracking company execs buying/selling habits. Source: about 1 year ago

Open Insider (free) — Tracks all the stock transactions made by insiders in public companies. Source: over 1 year ago

Have you looked at Alpaca's Market Data API or Polygon.io. Both premium options are reasonably priced and give you access to both historical and real time trades. Source: over 1 year ago

I think https://alpaca.markets/data still offers free api keys for research purposes. Source: almost 2 years ago

Https://alpaca.markets/data - As you see you get 100% market coverage for all US exchanges and unlimited API / WebSocket access. They also have 1min bar historical data (I do not know about the tick level). I can not speak to the quality of the API Access as I have a TotalView subscription. Source: almost 2 years ago

Free tier for researchers, now $99/month for the algotrading access (link: https://alpaca.markets/data). Source: about 2 years ago

Https://alpaca.markets/data free plan has 200 calls/minute limit which is what you want anyway. Source: over 2 years ago