ATAI	The short sale volume percent (not short interest) for stock ticker ATAI is 34% on Jan 21, 2026. The short sale volume is 460,660. The total volume is 1,358,793. The short sale volume percent is down -9% compare to Jan 20, 2026.

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Insider Buying

The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2026-01-21	460,660	1,358,793	34%
2026-01-20	1,072,563	2,491,174	43%
2026-01-16	424,531	855,697	50%
2026-01-15	419,348	1,344,452	31%
2026-01-14	569,442	1,917,712	30%
2026-01-13	543,800	2,071,352	26%
2026-01-12	425,929	3,066,372	14%
2026-01-09	861,082	2,132,521	40%
2026-01-08	551,893	1,653,885	33%
2026-01-07	698,734	1,627,705	43%

Last 5 days short percent	36.98%
Last 10 days short percent	32.55%
Last 20 days short percent	38.50%
Last 50 days short percent	34.00%