--- title: "Cathie Wood Sells $15.6 Million of Tempus AI Stock After Merck-Moderna Trial Win, Ark Keeps Selling AMD Shares" type: "News" locale: "en" url: "https://longbridge.com/en/news/297730566.md" description: "Ark Invest, led by Cathie Wood, sold $15.6 million of Tempus AI shares and $3.4 million of AMD on Sept 1, 2026. The Tempus AI sale followed a stock surge linked to a successful Merck-Moderna trial. Ark also reduced AMD holdings amid expansion news. Additionally, Ark purchased Rocket Lab shares while selling Twist Bioscience and Shopify." datetime: "2026-09-02T02:34:09.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/297730566.md) - [en](https://longbridge.com/en/news/297730566.md) - [zh-HK](https://longbridge.com/zh-HK/news/297730566.md) generator: "portal-rs" --- # Cathie Wood Sells $15.6 Million of Tempus AI Stock After Merck-Moderna Trial Win, Ark Keeps Selling AMD Shares On Tuesday, **Cathie Wood**-led **Ark Invest** made significant trades involving **Tempus AI, Inc.** (NASDAQ:TEM) and **Advanced Micro Devices, Inc.** (NASDAQ:AMD). These trades reflect Ark’s strategic adjustments amid evolving market dynamics. ## The Tempus AI Trade Ark Invest executed a substantial sell-off of **Tempus AI, Inc.** shares on Tuesday. The firm sold 250,062 shares of Tempus AI through its **ARK Innovation ETF** (BATS:ARKK). With Tempus AI’s stock closing at $62.27, this transaction was valued at approximately $15.6 million. This move comes after Tempus AI’s recent surge in stock price, which was linked to a successful Phase 3 clinical trial by **Merck & Co.** and **Moderna Inc.** The trial validated Tempus’s acquisition of Personalis, marking a significant milestone in mRNA-based cancer treatment. Tempus AI’s stock has been in the spotlight since the trial results were announced, showcasing the potential of personalized mRNA therapies. **Read Also: This Strategist Is Betting Against a September Fed Rate Hike as Markets Turn Hawkish After Kevin Warsh’s Jackson Hole Speech: 'It's Not Going to be Material'** ## The AMD Trade On the same day, Ark Invest also reduced its holdings in AMD. The firm sold 4,136 shares through **ARK Autonomous Technology & Robotics ETF** (BATS:ARKQ) and 3,314 shares via **ARK Space & Defense Innovation ETF** (BATS:ARKX). With AMD’s stock closing at $459.61, the total value of these transactions amounted to approximately $3.4 million. On Monday, Ark sold $4.1 million worth of AMD stock, continuing its recent trend of offloading shares of the **Lisa Su-**led chipmaker. Ark’s AMD holdings are currently estimated to be worth $160.2 million, with the stock accounting for 2.65% of the portfolio. The move came after AMD announced plans to expand its AI infrastructure in Saudi Arabia through a collaboration with Cisco Systems Inc. and HUMAIN ## Other Key Trades - Purchased 420,602 shares of **Rocket Lab Corp** (RKLB) through **ARKK**, 60,164 shares through ARKQ and 24,033 shares via ARKX. - Sold 46,771 shares of **Twist Bioscience Corporation** (TWST) via **ARKK**. - Sold 43,882 shares of **Shopify Inc.** (SHOP) through **ARKK**. **Benzinga Edge Stock Rankings** indicate Tempus AI stock has a Momentum score in the 52nd percentile. **Read Also: Dell, Palo Alto, Credo Technology, MongoDB, GitLab: Why These 5 Stocks Are on Investors' Radars Today** *Photo: ChrisStock82 / Shutterstock.com* ***Disclaimer*:** *This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.* ### Related Stocks - [TEM.US](https://longbridge.com/en/quote/TEM.US.md) - [SHOP.US](https://longbridge.com/en/quote/SHOP.US.md) - [MRNA.US](https://longbridge.com/en/quote/MRNA.US.md) - [RKLB.US](https://longbridge.com/en/quote/RKLB.US.md) - [TWST.US](https://longbridge.com/en/quote/TWST.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [AMUU.US](https://longbridge.com/en/quote/AMUU.US.md) - [AMDL.US](https://longbridge.com/en/quote/AMDL.US.md) - [TEMT.US](https://longbridge.com/en/quote/TEMT.US.md) - [SHPD.US](https://longbridge.com/en/quote/SHPD.US.md) - [SHPU.US](https://longbridge.com/en/quote/SHPU.US.md) - [MRNX.US](https://longbridge.com/en/quote/MRNX.US.md) - [MRNY.US](https://longbridge.com/en/quote/MRNY.US.md) - [RKLX.US](https://longbridge.com/en/quote/RKLX.US.md) - [RKLZ.US](https://longbridge.com/en/quote/RKLZ.US.md) - [AMDD.US](https://longbridge.com/en/quote/AMDD.US.md) - [AMDG.US](https://longbridge.com/en/quote/AMDG.US.md) - [DAMD.US](https://longbridge.com/en/quote/DAMD.US.md) - [AMDY.US](https://longbridge.com/en/quote/AMDY.US.md) - [AMDW.US](https://longbridge.com/en/quote/AMDW.US.md) - [SMH.US](https://longbridge.com/en/quote/SMH.US.md) - [SOXX.US](https://longbridge.com/en/quote/SOXX.US.md) - [SOXL.US](https://longbridge.com/en/quote/SOXL.US.md) - [SOXQ.US](https://longbridge.com/en/quote/SOXQ.US.md) - [XSD.US](https://longbridge.com/en/quote/XSD.US.md) - [PSI.US](https://longbridge.com/en/quote/PSI.US.md) - [FTXL.US](https://longbridge.com/en/quote/FTXL.US.md) - [MRK.US](https://longbridge.com/en/quote/MRK.US.md) - [ARKK.US](https://longbridge.com/en/quote/ARKK.US.md) - [PSNL.US](https://longbridge.com/en/quote/PSNL.US.md) - [ARKQ.US](https://longbridge.com/en/quote/ARKQ.US.md) - [ARKX.US](https://longbridge.com/en/quote/ARKX.US.md) - [CSCO.US](https://longbridge.com/en/quote/CSCO.US.md) - [DELL.US](https://longbridge.com/en/quote/DELL.US.md) - [PANW.US](https://longbridge.com/en/quote/PANW.US.md) - [CRDO.US](https://longbridge.com/en/quote/CRDO.US.md) - [MDB.US](https://longbridge.com/en/quote/MDB.US.md) - [GTLB.US](https://longbridge.com/en/quote/GTLB.US.md) ## Related News & Research - [Moderna (NASDAQ:MRNA) Insider Sells $485,766.45 in Stock](https://longbridge.com/en/news/297959605.md) - [Moderna Chief Legal Officer Shannon Thyme Klinger disposes of USD 485,271.45 in common shares](https://longbridge.com/en/news/297958452.md) - [AMD: AI and data center growth, product ramps, and strong customer demand drive a bullish outlook](https://longbridge.com/en/news/298337880.md) - [Tempus AI (NASDAQ:TEM) Coverage Initiated at Roth Capital](https://longbridge.com/en/news/298320561.md) - [00:00 ETMINISFORUM Unveils Next-Gen Edge AI Computing Solutions Powered by AMD Ryzen AI MAX+ PRO 495 at IFA 2026](https://longbridge.com/en/news/297987917.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**