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Betsy Flaherty

Portolan Capital Management, Llc

Assets Managed
$1.879B
Holdings
144
Last Quarter
2026 - Q1
Filed Date
11d ago
Growth Rate
0.68%(2Q avg: 0.84%)
Sustained Growth
4 quarters

Portfolio positions

This chart displays the top 10 holdings in Portolan Capital Management, Llc's 2026 - Q1 portfolio, based on their 13F SEC filing, out of a total of 144 positions.

Assets under management

The assets under management (AUM) of Portolan Capital Management, Llc over the past 10 years (40 quarters) show continuous growth in total asset value over the last 4 quarters. As of the latest 13F SEC filing for 2026 - Q1, they manage 1.879B in assets, with a quarterly growth rate of 0.68% and a 2-quarter average growth rate of 0.84%. The portfolio is managed by Betsy Flaherty, and others.

Portfolio holdings

InvestmentPortfolio %Reported Value
MOD
Modine Manufacturing Co
Recent Activity
Decreased -23.1%
4.76%
$89.304M
412,092 shares@ $216.71 avg price
TTMI
Ttm Technologies
Recent Activity
Decreased -36.55%
3.78%
$70.872M
727,494 shares@ $97.42 avg price
CLS
Celestica Inc
Recent Activity
Increased 14.86%
2.97%
$55.734M
197,863 shares@ $281.69 avg price
VIRT
Virtu Financial Inc-class A
Recent Activity
Increased 222.07%
2.84%
$53.299M
1.212M shares@ $43.98 avg price
AKAM
Akamai Technologies Inc
Recent Activity
Decreased -19.23%
2.59%
$48.632M
423,442 shares@ $114.86 avg price
VPG
Vishay Precision Group
Recent Activity
Increased 16.21%
2.36%
$44.283M
1.02M shares@ $43.43 avg price
PARR
Par Pacific Holdings Inc
Recent Activity
New Position
2.32%
$43.462M
693,834 shares@ $62.65 avg price
POWL
Powell Industries Inc
Recent Activity
Decreased -4.15%
2.19%
$41.03M
75,830 shares@ $541.08 avg price
BIDU
Baidu Inc - Spon Adr
Recent Activity
Increased 38.97%
2.18%
$40.828M
366,429 shares@ $111.42 avg price
PBF
Pbf Energy Inc-class A
Recent Activity
New Position
2.03%
$38.096M
799,998 shares@ $47.63 avg price

1-10 of 144