David Hogg, the vocal anti-gun Parkland survivor, is going after another target after his boycott campaign against Laura Ingraham appeared to fail.

Here's his new target

Hogg tweeted Tuesday to his more than 764,000 followers about his newest boycott campaign.

"[BlackRock Investment Group] and [The Vanguard Group] are two of the biggest investors in gun manufacturers; if you use them, feel free to let them know. Thanks," Hogg tweeted, adding a winking smiley face.

He followed up with a hashtag tweet to make clear his intention to call for a boycott of both Vanguard and BlackRock.

He also added a screenshot of other asset-management companies that appear to invest in gun manufacturers and retailers.

More info, feel free to tag these companies pic.twitter.com/KODc2by5yO

— David Hogg (@davidhogg111) April 17, 2018

The Ingraham boycott

Hogg successfully forced many advertisers to abandon Laura Ingraham's show on Fox News after she mocked him on Twitter over his complaint that he didn't get into the colleges he wanted to attend.

Although she later apologized and invited him back on her show, he refused her apology and continued pressuring on her advertisers.

Ingraham went on a week-long vacation after the online furor, after which her ratings recovered, and some advertisers returned to the show.