Cyberonics (CYBX) was indeed such a case, and there were allegations of untoward meddling in the FDA decisionmaking by members of Congress. A contemporaneous account of CYBX’s anti-FDA tirade can be found in #msg-3800295 and #msg-4117207 :- )
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”