Embattled ex-pharmaceutical CEO Martin Shkreli showed up outside of Chelsea Clinton's New York City apartment Sunday to taunt Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE about her health.

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The Democratic presidential nominee left a 9/11 memorial ceremony early Sunday after becoming "overheated," aides said.

After resting at her daughter's apartment, she emerged, telling reporters she felt great.

Shkreli stood outside yelling and telling her to drop out of the presidential race.

"Do you need pharma bro's help?" Shkreli yelled at Clinton, according to a video he posted on YouTube.

"Why are you so sick?" he also said, according to The New York Post.

"Get well soon bae!" he added on Twitter.

I enjoyed screaming "why are you so sick" and "go trump" at @HillaryClinton . Get well soon bae! — Martin Shkreli (@MartinShkreli) September 11, 2016

Shkreli, the former CEO of Turing Pharmaceuticals, raised ire when he hiked the price vital pills manufactured by his company. He's now being investigated over unrelated allegations, including fraud charges.