Cathie Wood Buys Robinhood and Joby Aviation, Sells Roku in Latest Portfolio Moves

TLDR

• ARK Invest sold 32,304 shares of Roku worth $3.17 million on March 6, continuing a recent trend of cutting the position
• ARK bought 289,417 shares of Joby Aviation for $2.78 million, adding to its electric aviation holdings after the company posted a narrower Q4 loss
• Robinhood Markets saw ARK pick up 19,206 shares worth $1.55 million, taking advantage of a 4% drop in the stock that day
• ARK also bought JD Logistics shares worth $1.48 million as the stock surged roughly 22% on Friday
• On the sell side, ARK offloaded Iridium Communications shares for $2.08 million and trimmed its 10x Genomics position by $1.62 million

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Cathie Wood’s ARK Invest made a series of trades on Friday, March 6, 2026, as markets closed out a turbulent week. Rising U.S.–Iran tensions and the latest jobs report kept investors cautious heading into the weekend.

ARK’s daily trade disclosures showed a mix of buys and sells across technology, fintech, and aviation stocks.

The biggest trade of the day was a sale. ARK sold 32,304 shares of Roku across multiple funds for about $3.17 million. This follows earlier Roku sales the same week, pointing to a deliberate reduction of the position.

Roku, Inc., ROKU

ARK also sold 86,890 shares of Iridium Communications for roughly $2.08 million. The satellite communications firm has been among ARK’s portfolio holdings, but Friday’s move suggests a pullback.

The firm also reduced its stake in 10x Genomics, selling 75,007 shares valued at around $1.62 million.

ARK Adds to Electric Aviation and Fintech

On the buying side, Joby Aviation was the standout. ARK purchased 289,417 shares worth approximately $2.78 million through its ARKQ and ARKX funds. The electric air-taxi company recently reported Q4 2025 results, posting a loss of $0.14 per share. That was narrower than the $0.23 loss recorded a year earlier.

Wood has been buying Joby shares following those earnings results.

ARK also added to its Robinhood Markets position, buying 19,206 shares for about $1.55 million. The purchase came as Robinhood shares fell roughly 4% on Friday. The buys were spread across ARK’s ARKK, ARKW, and ARKF funds.

Other Buys on March 6

JD Logistics was another buy. ARK picked up 1,129,547 shares for about $1.48 million through its ARKX fund. The logistics company’s stock jumped roughly 22% on the day.

ARK also added 10,600 shares of DraftKings for around $269,876.

Smaller purchases included Cerus Corp, Canton Strategic Holdings, and GeneDx Holdings.

ARK bought 84,004 shares of Cerus for $170,948, 42,500 shares of Canton Strategic for $191,250, and 9,113 shares of GeneDx for $747,266.

Standard BioTools was another name ARK exited, selling 397,382 shares for $405,329. ARK also trimmed Nextdoor Holdings, selling 23,100 shares for $38,577.

The trades were disclosed through ARK’s standard daily filing on March 6, 2026.

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