>Tony Aquila purchased 9 million shares of Canoo (GOEV) as part of a common stock subscription agreement. https://finviz.com/insidertrading.ashx?oc=1399053&tc=7 show him putting in $236m or so. - Source: Hacker News / 2 months ago

Finviz does have an insider trading portion but it’s not entirely clear what “super investors” are to the OP. Source: about 1 year ago

Https://finviz.com/insidertrading.ashx –– shows almost every piece of data about the trades. Source: over 1 year ago

Https://finviz.com/insidertrading.ashx Https://www.insidertracking.com/. Source: over 1 year ago

CEO of Blackrock Larry Fink sold $30,465,065 of his personal stock on Friday, Aug 5. Source: almost 2 years 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: over 1 year 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: almost 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