Portolan Capital Management Invests in First Solar

Institutional investor takes stake in solar cell manufacturer

Mar. 14, 2026 at 9:05am

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Portolan Capital Management LLC, an institutional investor, has purchased a new stake of 83,198 shares in First Solar, Inc. (NASDAQ:FSLR), a solar cell manufacturer based in Tempe, Arizona. The investment is valued at approximately $18.3 million, representing about 0.08% ownership of First Solar.

Why it matters

This investment signals institutional confidence in the solar energy sector and First Solar's position as a leading manufacturer of solar cells and modules. It also highlights the growing interest and investment in renewable energy technologies as the world transitions towards more sustainable energy sources.

The details

According to a recent 13F filing with the Securities and Exchange Commission, Portolan Capital Management LLC purchased the new stake in First Solar during the third quarter. First Solar is a U.S.-based solar technology company known for its thin-film photovoltaic modules that use cadmium telluride semiconductor technology.

  • Portolan Capital Management LLC purchased the new stake in the third quarter of the year.

The players

Portolan Capital Management LLC

An institutional investor that has purchased a new stake in First Solar, Inc.

First Solar, Inc.

A U.S.-based solar technology company that manufactures thin-film photovoltaic modules using cadmium telluride semiconductor technology.

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The takeaway

This investment by Portolan Capital Management reflects the growing institutional interest in the solar energy sector and First Solar's position as a leading player in the industry. As the world continues to transition towards renewable energy sources, companies like First Solar are poised to benefit from this shift.