Impinj (PI) shares dropped sharply by 5% during Friday's intraday session, following the release of analyst ratings from Needham. The firm maintained its price target of $255 per share for the stock, which may have influenced investor sentiment.

Analyst ratings and price targets are closely watched by investors as they provide insights into a stock's potential performance. The maintained target, while not a downgrade, could have led to some selling pressure as traders reassessed their positions.