$AMRN Here are the top 6 investment funds with the largest stakes in AMRN. 4 trimmed minimally (3-21%), Probly to recoup initial principal from before R-IT data drop? (i.e. Baker Bros). One, Invesco, increased shares by 1400%. Just got to be aware of who you’re in the boat with before a major event. I usually agree with Baker Bros, venBio, & Perceptive’s picks.