Jack Dorsey Steps Down as Twitter CEO
Dorsey resigned as Twitter CEO today, handing the reins to CTO Parag Agrawal while staying on as Square's chief.
Well, that’s a Monday. Jack Dorsey announced today he’s stepping down as CEO of Twitter, and true to form he broke the news himself, tweeting “Not sure anyone has heard, but I resigned from Twitter.” Classic Dorsey — understated, a little wry, and posted on the platform he’s leaving.
His replacement is Parag Agrawal, who’s been Twitter’s CTO and is taking over effective immediately. If you don’t know the name, that’s not surprising — Agrawal has largely worked behind the scenes on the technical side, including a lot of the machine learning and infrastructure work that shapes what you actually see in your timeline. Handing the CEO job to the CTO rather than an outside hire or a COO is a signal in itself: the board wants continuity on product and engineering direction rather than a reset.
There’s also a governance change worth flagging. Salesforce co-CEO Bret Taylor is stepping in as Twitter’s board chairman. Taylor’s got a deep product pedigree — he was involved in building Google Maps early on and later ran product at Facebook before landing at Salesforce — so his presence on the board isn’t just a rubber-stamp appointment.
Why this matters beyond Twitter
Dorsey has spent years running two public companies simultaneously — Twitter and Square (which recently rebranded itself as Block) — and he’s not leaving Square. He’s staying on as CEO there. Investors and activists have grumbled for a while about the split-attention problem of a founder-CEO trying to run two companies at once, and this move quietly resolves that tension without Dorsey having to walk away from either company entirely. He gets to keep building payments and crypto infrastructure at Block while Twitter gets a full-time technologist at the helm.
It’s also a reminder of how differently Dorsey has operated compared to other social media founders. He’s never seemed all that comfortable being the public face of a platform obsessed with public faces — remote work advocacy, decentralization talk (he’s been vocal about Bluesky, the decentralized social protocol effort Twitter itself funded), and periodic talk of stepping back have all been part of the Dorsey era. This resignation isn’t exactly a shock in that light, even if the timing caught people off guard.
The open question now is what changes under Agrawal. He’s an engineer’s engineer, not a media executive, and that could mean more emphasis on the technical roadmap — algorithmic transparency efforts, spam and bot mitigation, and whatever comes of Twitter’s edit-button experiments — over the culture-war firefighting that dominated so much of Dorsey’s later tenure. Whether that’s a good thing depends on whether you think Twitter’s problems are fundamentally technical or fundamentally about moderation and incentives. My guess is we’ll know a lot more about Agrawal’s priorities within the first few months of him actually being in the chair.