A homeless immigrant who was killed saving a woman from a stalker — only to have people coldly walk by as he lay dying on a Queens street — has finally been honored, thanks to a tenacious hedge-fund exec.

The Post last year revealed that Hugo Tale-Yax, 31, was seen on surveillance video on April 18, 2010, rushing to the aid of the woman in Jamaica as she was being menaced, then collapsing after her assailant stabbed him.

Nearly 25 people then walked by, some taking pictures. None stopped to help.

“When I first read the story . . . I thought that, while it was sad, it was also heroic that he died protecting another,” said Barry Hugh Colvin, 43, vice chairman of Balyasny Asset Management.

He contacted the office of Councilman James Gennaro, and asked that a plaque be placed at the site.

After more than a year of e-mails and calls, two trees were planted last week in front the building on 144th Street where Tale-Yax was killed, along with a plaque reading: “Hugo Alfredo Tale-Yax, 4/18/2010. He died protecting another.”