Can I dm him over instagram?

there's a guy i always see at uni. He is in the same year as me and i often see him in lecture hall. We iften have eye contact and i think he is intrested too. I found out his name by a list from uni and i also found his isntagram as i looked in the following lait of some students taht are public. Now i really want to dm him but i am a bit scared he will find it weird taht i found him. Its pretty random and like we never talked before in person wr never had a chance. And maybe i come across as a stalker. I dont know what else to do, since i really want to pursue him

Can I dm him over instagram?
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