Portolan Capital Management Boosts Stake in Bandwidth Inc.

The institutional investor increased its holdings in the communications platform company by over 115% in the third quarter.

Mar. 14, 2026 at 9:05am

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Portolan Capital Management LLC raised its stake in Bandwidth Inc. (NASDAQ:BAND) by 115.8% during the third quarter, according to a recent SEC filing. The institutional investor now owns 745,802 shares of the company's stock, representing 2.44% of Bandwidth's total shares outstanding.

Why it matters

Bandwidth is a cloud-based communications platform that provides voice, messaging, and emergency services APIs for enterprises and developers. The significant increase in Portolan's stake suggests the investment firm sees strong potential in Bandwidth's business model and growth prospects.

The details

Portolan Capital Management purchased an additional 400,231 shares of Bandwidth during the third quarter, bringing its total holdings to 745,802 shares. This represents a 115.8% increase from the previous quarter. Bandwidth's stock price has fluctuated over the past year, trading between $11.33 and $18.63 per share.

  • Portolan Capital Management increased its stake in Bandwidth during the third quarter of 2025.

The players

Portolan Capital Management LLC

An institutional investment firm that raised its holdings in Bandwidth Inc. by over 115% in the third quarter.

Bandwidth Inc.

A cloud-based communications platform company that provides voice, messaging, and emergency services APIs for enterprises and developers.

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The takeaway

Portolan Capital Management's significant increase in its Bandwidth stake suggests the investment firm sees strong growth potential in the communications platform company, which could signal positive momentum for Bandwidth's business and stock performance going forward.