Where to find a list of the most important news in a stocks history?

I'm doing a historic deepdive into the history of Paramount's stock (PARA), which I own. All I want are the news events around the time of large moves in the stock price, e.g., 10% gains or losses.

Are there any resources for this type of data? Seems like it would be a common use case for investors looking at the last few years of data. $S&P 500 Index (.SPX.US)$ $Nasdaq Composite Index (.IXIC.US)$ $Dow Jones Industrial Average (.DJI.US)$