Data as of Q4 2025 (Dec 31, 2025)

Portolan Capital Management, LLC

โ€ขCIK: 1350290โ€ขFiling: Q4 2025

**Portolan Capital Management, LLC** manages $1.9B across a diversified portfolio of 155 positions. The firm maintains significant exposure to technology and growth sectors, highlighted by top holdings including TTMI at $79.1M and MOD at $71.6M. Further notable allocations include CSTL ($67.3M), CLS ($50.9M), and AKAM ($45.7M). This concentrated approach suggests a conviction-driven strategy targeting outsized returns from key market segments.

Total AUM
$1.9B
QoQ Performance
+1.0%
Positions
155
Top 10 Concentration
26.4%
Latest Filing
Q4 2025

Top Holdings Allocation

TTMI4.2%
MOD3.8%
CSTL3.6%
CLS2.7%
AKAM2.5%
REAX2.1%
SMTC2.0%
BIDUN1.8%

๐Ÿ“ˆ Biggest Buys

AKAM
AKAMAI TECHNOLOGIES INC
NEW
2.5% of portfolio
BIDUN
BAIDU INC
+5657.2%
1.8% of portfolio
FAF
FIRST AMERN FINL CORP
NEW
1.1% of portfolio
REAX
THE REAL BROKERAGE INC
+86.9%
2.1% of portfolio
FOUR
SHIFT4 PMTS INC
+148.0%
1.6% of portfolio

๐Ÿ“‰ Biggest Sells

DBRG
DIGITALBRIDGE GROUP INC
-84.9%
0.7% of portfolio
CLS
CELESTICA INC
-31.5%
2.7% of portfolio
KTOS
KRATOS DEFENSE &SEC SOLUTIO
-50.7%
1.2% of portfolio
ELF
E L F BEAUTY INC
-60.6%
0.8% of portfolio
POWL
POWELL INDS INC
-46.6%
1.4% of portfolio

Sector Breakdown

Other98.5%
Materials0.8%
Technology0.7%

๐Ÿšช Exited Positionssold since Q3 2025

WWW
WOLVERINE WORLD WIDE INC
SOLD
$21.9M
PSIX
POWER SOLUTIONS INTL INC
SOLD
$19.2M
CELH
CELSIUS HLDGS INC
SOLD
$9.4M
CXT
CRANE NXT CO
SOLD
$8.9M
BKSY
BLACKSKY TECHNOLOGY INC
SOLD
$7.9M
+16 more exited positions

Changes from Q3 2025

NEW57 new positions
โ†‘34 increased
โ†“55 decreased

Historical Filings

Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023