This market will resolve to "Yes" if Strategy Inc., formerly known as MicroStrategy, announces that they have sold any Bitcoin between the dates in the title (from 12:00 AM ET on the first date to 11:59 PM ET on the last date). Otherwise, it will resolve to "No".
This market will resolve based on announcements made within the market's designated time frame regardless of when the actual sells were made.
The resolution source for this market will be official information from MicroStrategy or Michael Saylor.
For reference, MicroStrategy's reported BTC holdings can be tracked at:
https://www.strategy.com/purchases
Rich market