Portolan Capital Boosts Stake in Olaplex Holdings

Institutional investor increases ownership in hair care company by over 130%

Mar. 14, 2026 at 9:06am

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Portolan Capital Management LLC, an investment management firm, has significantly increased its stake in Olaplex Holdings, Inc. (NASDAQ:OLPX), a specialty haircare company known for its patented bond-building technology. According to a recent 13F filing with the SEC, Portolan Capital grew its holdings in Olaplex by 132.6% in the third quarter, now owning approximately 3.6 million shares or 0.54% of the company's stock.

Why it matters

Olaplex has been a closely watched stock in the beauty and personal care industry due to its innovative product line and strong growth potential. This sizable increase in ownership by Portolan Capital, a respected institutional investor, signals continued confidence in Olaplex's business model and long-term prospects.

The details

Portolan Capital Management, an investment firm based in Boston, added over 2 million shares of Olaplex to its portfolio during the third quarter of 2025. This brings Portolan's total stake in the company to 3,635,124 shares, worth approximately $4.76 million at the end of the quarter. The firm's increased investment represents over 130% growth in its Olaplex holdings compared to the prior quarter.

  • Portolan Capital Management increased its Olaplex stake in the 3rd quarter of 2025.

The players

Portolan Capital Management LLC

An investment management firm based in Boston that has significantly increased its ownership in Olaplex Holdings, Inc.

Olaplex Holdings, Inc.

A specialty haircare company known for its patented bond-building technology that repairs and strengthens hair.

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The takeaway

Portolan Capital's substantial increase in its Olaplex stake underscores the investment firm's confidence in the haircare company's growth potential. As Olaplex continues to expand its innovative product line and customer base, this institutional investment signals that the company remains an attractive long-term opportunity in the beauty and personal care sector.