Former Twitter CEO Dick Costolo dinged Musk for bullying, but Musk said he's asking Twitter to be n…

Jeff Bezos and Steve Jobs may be two of the most successful tech executives of all time, but they h…

"Things are crazily priced," said Dick Costolo. "I mean, Zoom is a great company but at $125 billio…

Dick Costolo, who was Twitter CEO from 2010 to 2015, pointed to a recent poll which found 50% of Fo…

The two former top Twitter executives are joining forces to launch a new venture capital firm calle…

In connection with his change in roles, Mr. Costolo entered into a letter agreement ("Letter Agreem…

The Chorus website says it's looking for engineers and designers to join its team. Costolo started …

"He has this fluency about this way he thinks about the product, and about its potential," Costolo …

In consideration of your continued service as Chief Executive Officer through the Employment End Da…

Still, he must have done something right, because Twitter users - including a lot of Twitter employ…

It's been a rough year for Twitter. Its stock plummeted after a disappointing Q1 earnings and inves…

Costolo's career includes founding a dot-com business SpyOnIt that tracked changes on websites and …

"Well, I've said for awhile that I think Twitter can be a successful, independent company," Costolo…

The device measures lots of different factors in a room to give users an overall sleep score. It st…

Costolo's career includes founding dot-com business SpyOnIt, which tracked changes on websites and …

He also said that he tells managers all the time that they can't fool anybody - the looks on their …

But Wilson, whose VC firm Union Square Ventures first invested in Twitter's $5 million Series A rou…

Twitter is currently searching for a permanent CEO to replace Costolo, who joined the company in 20…

A string of personnel changes and Costolo's own particular style of promoting employees has left th…

A string of personnel changes and Costolo's own particular style of promoting employees has left th…