Hmm... I was under the impression he had sold a lot (http://www.bloomberg.com/news/articles/2014-12-17/costolo-s-family-trusts-sell-remaining-twitter-stock http

Hmm... I was under the impression he had sold a lot (http://www.bloomberg.com/news/articles/2014-12-17/costolo-s-family-trusts-sell-remaining-twitter-stock http://www.bloomberg.com/news/articles/2014-12-17/costolo-s-...) and gave up anything that hadn't vested yet (https://twitter.com/sm/status/609095387207434240 https://twitter.com/sm/status/609095387207434240).