What's Going On With T2 Biosystems Stock Today?

T2 Biosystems, Inc. TTOO shares are trading lower Monday. The stock has fallen more than 50% over the last five days. 

What To Know:

An SEC filing shows a large insider sale of TTOO shares last week. According to the filing, CR Group, L.P. sold more than 10 million shares at $0.366 per share on Sept. 19. 

The large insider sale follows an announcement from the company last Monday that the FDA had cleared the company's biothreat panel for commercial distribution.

T2 Biosystems has grabbed the attention of retail investors and short-sellers alike. The stock is listed as one of the most active on Stocktwits, and 8.6% of available shares are being sold short, according to data from Benzinga Pro. 

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TTOO Price Action: According to Benzinga Pro, T2 Biosystems shares are down 12.7% at 22 cents at the time of publication.

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