Cathie Wood Sells $15.6 Million of Tempus AI Stock After Merck-Moderna Trial Win, Ark Keeps Selling AMD S
Ark Invest sold $15.6M in Tempus AI (TEM) shares and $3.4M in AMD (AMD) shares on Tuesday. Tempus's stock surged after a successful Merck-Moderna trial. AMD announced AI infrastructure expansion in Saudi Arabia. Ark also traded shares of RKLB, TWST, and SHOP.
How this was made
The 30-second read
Why it matters
Fund-level trades can move small‑cap stocks and signal sentiment shifts for larger names.
Market read
Ark’s activity provides a short‑term trading signal for the listed tickers, especially TEM and AMD.
What to watch
Potential upcoming earnings or trial data releases could offset the fund’s sell‑off impact.
Background
Ark Invest routinely adjusts holdings; recent trades reflect portfolio rebalancing after notable biotech trial news.
Ticker impact
Ark sold 250,062 shares of Tempus AI (~$15.6M) after its Phase‑3 trial win.
Modest decline of 2‑3% over the next few days.
Large fund sell‑off signals reduced confidence; no new fundamentals changed.
Ark reduced its AMD position by 7,450 shares (~$3.4M) following AI‑in‑Saudi Arabia announcement.
Possible 1‑2% dip if market follows the sell‑off.
Ark’s reduced exposure may temper enthusiasm despite AI expansion news.
Ark purchased 420,602 shares of Rocket Lab through ARKK.
Potential upside of 1‑2% as buying pressure builds.
Purchase size is modest relative to market cap; impact likely limited.
Ark sold 46,771 shares of Twist Bioscience via ARKK.
Negligible effect, likely <1% movement.
Trade size is minor; market likely absorbs it without noticeable move.
Ark sold 43,882 shares of Shopify through ARKK.
Potential short‑term dip of <1%.
Trade size is small relative to liquidity; limited price effect.
Market effects
Highlights shifting sentiment in AI‑related and biotech ETFs as Ark reallocates.
US equity markets may see modest pressure in biotech and semiconductor segments.
Limited; primarily affects US‑listed growth stocks.
Counterpoint
Ark’s exits could be a buying opportunity if the market overreacts to fund activity.
Key entities
- PersonCathie Wood
Founder of Ark Invest, leading the fund's strategic decisions.
- ETFArk Innovation ETF (ARKK)
Ark’s flagship fund holding the disclosed positions.
