Portolan Capital Management, LLC - Portfolio Stock Holdings

Portolan Capital Management, LLC disclosed 184 stock positions in a recent SEC 13F filing. $1,848,568,119 of stock holdings were filed, with the largest holdings including MOD, TTMI, and CLS. This filing represented positions held on March 31, 2026, and was filed on May 15, 2026.

We estimate the fund has a total AUM of $2,021,361,155 and has 12 employees, per a recent ADV filing. Most of the fund’s AUM appears to come from investment companies.