07:41 AM EDT, 09/15/2025 (MT Newswires) -- Helius Medical Technologies ( HSDT ) stock was up more than 300% pre-bell Monday following a 3.1% gain in the previous session.

Monte Rosa Therapeutics ( GLUE ) shares were 60% higher after the company said it formed a collaboration with Novartis (NVS) to develop degraders for the treatment of immune-mediated diseases.

Envirotech Vehicles ( EVTV ) stock was up 56% after the company launched a heavy-lift drone for agriculture and fire protection.

mF International ( MFI ) shares were 31% higher after the company filed a registration statement late Friday for the sale of up to $700 million worth of securities.