Raspberry Pi Holdings plc (LSE:RPI) shares rallied sharply on Tuesday after Chief Executive Officer Eben Upton disclosed the purchase of additional stock in the company.

By 11:40 GMT, the shares were up 27.6%.

A regulatory filing published Monday showed that Upton bought 4,684 ordinary shares at an average price of £2.82327 each, representing a transaction worth roughly £13,224. Following the acquisition, his total holding rose to 2,591,136 ordinary shares.

The trade was carried out on the London Stock Exchange’s Main Market and reported in line with rules governing dealings by Persons Discharging Managerial Responsibilities (PDMR).

Market participants often interpret insider buying—particularly by senior executives—as a vote of confidence in a company’s outlook. Upton’s decision to expand his ownership stake appeared to fuel a strong positive reaction among investors.

The purchase was completed on February 16, 2026, according to the company’s regulatory notice. Raspberry Pi’s ordinary shares carry a nominal value of £0.0025 each.

Raspberry Pi manufactures low-cost computing devices widely used by hobbyists, educators and software developers around the globe.

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