** Shares of vaccine maker Moderna MRNA.O rise 9.2% to $33.19 premarket

** CEO Stephane Bancel has bought ~160,000 MRNA shares at roughly $31/shr, SEC filing showed late Tuesday

** MRNA shares have fallen 39.1% since mid-January, when co cut 2025 sales forecast by $1 bln

** Co has ~385 million outstanding shares, as of February 14

** Stock fell 68.3% in past 12 months

(Reporting by Padmanabhan Ananthan)

((Padmanabhan.Ananthan@thomsonreuters.com;))