Why Is TWIST BIOSCIENCE COR (TWST) Stock Up Today?
By the Top Tier Newswire AI Desk · August 19, 2026 at 3:07 PM ET · reviewed against 6 wire stories
TWIST BIOSCIENCE COR (TWST) is up +20.51% in the latest session. Our newswire has captured 6 stories on TWST across 5 sources in the last 36 hours, with AI sentiment reading mixed (avg 56/100).
Public view, delayed 4h. Every headline, price and sentiment read below — and this write-up itself — reaches Pro subscribers live. Public readers see it once it clears the delay.
TWST stock is up 20.51% at $139.91 as of the latest trade, driven by news that Twist Bioscience is assisting Anthropic in testing whether its AI model, Claude, can accelerate the drug-design process. The stock opened with a 3.1% gap up and reached a session high of $141.10 before settling near $139.91. The move reflects investor optimism about the company's role in AI-driven biotech innovation.
What Happened
Twist Bioscience disclosed through an SEC Form 8-K filing that it is an independent evaluator for Anthropic, testing the AI model's ability to design proteins that bind to drug targets. The company successfully validated 14 of 15 targets in the test, a result that has drawn attention from both the biotech and AI sectors. This development comes after Anthropic announced the collaboration publicly, sparking a broader market reaction that also lifted AI-linked biotech peers. The stock is now trading at its highest level since 2021 and has hit a 52-week high for the first time on August 19.
What The Data Shows
The stock opened at $119.75 and has traded in a wide range, reaching a high of $141.10. Volume has surged to 2.2 million shares, which is 1.3 times the 3-month daily average. Over the past 8 sessions, the stock has gained 2.8%, moving from $112.95 to $116.10 before today’s surge. The 52-week range is $23.30 to $126.40, and the stock is now well above its previous peak. Meanwhile, insiders have sold a total of $34.4 million worth of shares in the last 90 days, with the most recent transaction on August 14.
What To Watch
Twist Bioscience is not scheduled to report earnings in the near term, but coverage breadth and investor sentiment will be key to watch. The stock’s recent performance suggests strong momentum, but its fundamentals remain unprofitable with a net margin of -31.7%.
AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.
TWST · Aug 19 session (5-min) · +21.86% vs prior close · updated 8:57 PM ETAI sentiment, last 36h · averaged over 6 stories · 56/100 bullish
The headlines behind the move
Story flow · 6 stories on the wire, last 36h · hover or tap a dot for the headline
24d agoMarketWatchBULLISH 63Product/PR
Twist Bioscience on Track for Highest Close Since 2021 on Work With Anthropic
24d agoSeeking AlphaBULLISH 67Product/PR
Twist Bio jumps sending AI-linked peers higher after Anthropic announcement
Twist Bioscience (TWST) stock jumped, lifting its AI-linked biotech peers after Anthropic said that the company is one of its independent evaluators. Read more here.
24d agoInvesting.com MarketsNEUTRAL 50General
Why is Twist Bioscience stock surging today?
Why is Twist Bioscience stock surging today?
25d agoMarketWatchBULLISH 58Product/PR
Twist Bioscience Assists Anthropic in Testing Whether Claude Can Accelerate Drug-Design Process
25d agoStocktwits NewsNEUTRAL 48General
‘Pharma Bro’ Martin Shkreli Slams Anthropic’s Claude Drug-Discovery Claims: ‘This Is Not Impressive Work’
Claude-designed proteins successfully bound to 14 of 15 targets in independent testing by Adaptyv Bio and Twist Bioscience.
Want the next move before the crowd? The live terminal streams every headline in real time with watchlist alerts, AI sentiment, and the full data stack behind this page.Get Pro Access →