Institutions / Portolan Capital Management, LLC / Activity

Activity — Portolan Capital Management, LLC

181 moves.

BiggestNew positionsBiggest addsExits
InsidersInstitutions
DateActionCompanyValueShares ΔPosition afterImpact
Q1 2026
as of
TrimEstablishment Labs Holdings Inc.
Common stock
$-4.83M-85K
-89.89%
9,573
0.03% of portfolio
low
Q1 2026
as of
AddForrester Research, Inc.
Common stock
$4.73M+836K
+118.39%
1,541,276
0.46% of portfolio
low
Q1 2026
as of
NewOnto Innovation Inc.
Common stock
$4.57M+22K
22,263
0.24% of portfolio
low
Q1 2026
as of
NewProPetro Holding Corp.
Common stock
$4.54M+315K
314,815
0.24% of portfolio
low
Q1 2026
as of
AddPark Aerospace Corp
Common stock
$4.53M+166K
+67.59%
410,655
0.60% of portfolio
low
Q1 2026
as of
TrimLantheus Holdings, Inc.
Common stock
$-4.43M-58K
-12.27%
417,390
1.68% of portfolio
low
Q1 2026
as of
Exit679369108
Common stock
$-4.13M-3.1M
-100.00%
0
low
Q1 2026
as of
ExitN72482206
Common stock
$-4.06M-90K
-100.00%
0
low
Q1 2026
as of
TrimG38644103
Common stock
$-3.88M-85K
-62.17%
52,014
0.13% of portfolio
low
Q1 2026
as of
ExitM84137104
Common stock
$-3.69M-493K
-100.00%
0
low
Q1 2026
as of
AddPrimoris Services Corp
Common stock
$3.56M+25K
+23.56%
130,626
0.99% of portfolio
low
Q1 2026
as of
AddTalos Energy Inc.
Common stock
$3.55M+225K
+189.29%
344,549
0.29% of portfolio
low
Q1 2026
as of
TrimVicor Corp
Common stock
$-3.55M-22K
-45.26%
26,670
0.23% of portfolio
low
Q1 2026
as of
NewFPS
Forgent Power Solutions, Inc.
Common Stock
$3.45M+118K
117,933
0.18% of portfolio
low
Q1 2026
as of
ExitMercury Systems Inc
Common stock
$-3.38M-46K
-100.00%
0
low
Q1 2026
as of
Trimelf Beauty Inc
Common stock
$-3.37M-56K
-28.92%
136,707
0.44% of portfolio
low
Q1 2026
as of
New26142Q304
Common stock
$3.35M+683K
682,730
0.18% of portfolio
low
Q1 2026
as of
TrimDigi International Inc
Common stock
$-3.24M-67K
-28.33%
170,256
0.44% of portfolio
low
Q1 2026
as of
ExitOuster, Inc.
Common stock
$-3.14M-145K
-100.00%
0
low
Q1 2026
as of
ExitQMCO
Quantum Corp /De
Common Stock
$-3.08M-477K
-100.00%
0
low
Q1 2026
as of
AddXPEV
Xpeng Inc.
ADR
$3.05M+179K
+184.16%
275,432
0.25% of portfolio
low
Q1 2026
as of
AddGeneDx Holdings Corp.
Common stock
$3.01M+47K
+83.91%
102,575
0.35% of portfolio
low
Q1 2026
as of
ExitMicrosoft Corp
Common stock
$-2.89M-6K
-100.00%
0
low
Q1 2026
as of
TrimXZO
Exzeo Group, Inc.
Common Stock
$-2.86M-195K
-48.18%
209,885
0.16% of portfolio
low
Q1 2026
as of
ExitSuper Micro Computer, Inc.
Common stock
$-2.83M-97K
-100.00%
0
low
Q1 2026
as of
AddAmbarella Inc
Common stock
$2.81M+55K
+100.49%
108,749
0.30% of portfolio
low
Q1 2026
as of
AddWilldan Group, Inc.
Common stock
$2.78M+36K
+63.10%
93,964
0.38% of portfolio
low
Q1 2026
as of
TrimNextpower Inc.
Common stock
$-2.78M-23K
-28.88%
56,747
0.36% of portfolio
low
Q1 2026
as of
Add68373J104
Common stock
$2.71M+2.2M
+45.73%
6,902,888
0.46% of portfolio
low
Q1 2026
as of
TrimKratos Defense & Security Solutions Inc
Common stock
$-2.41M-34K
-11.63%
259,811
0.97% of portfolio
low
Q1 2026
as of
Exitindie Semiconductor, Inc.
Common stock
$-2.37M-672K
-100.00%
0
low
Q1 2026
as of
AddMobileye Global Inc.
Common stock
$2.31M+336K
+98.32%
678,135
0.25% of portfolio
low
Q1 2026
as of
TrimEnova International, Inc.
Common stock
$-2.30M-17K
-17.30%
80,923
0.58% of portfolio
low
Q1 2026
as of
AddPSNL
Personalis, Inc.
Common Stock
$2.28M+358K
+94.28%
736,713
0.25% of portfolio
low
Q1 2026
as of
ExitAlexandria Real Estate Equities Inc
Common stock
$-2.13M-44K
-100.00%
0
low
Q1 2026
as of
AddTalen Energy Corp
Common stock
$2.10M+7K
+8.79%
81,574
1.39% of portfolio
low
Q1 2026
as of
NewUltra Clean Holdings Inc
Common stock
$2.10M+34K
33,700
0.11% of portfolio
low
Q1 2026
as of
ExitGates Industrial Corp PLC
Common stock
$-2.09M-97K
-100.00%
0
low
Q1 2026
as of
ExitOracle Corp
Common stock
$-1.86M-10K
-100.00%
0
low
Q1 2026
as of
ExitG8068L108
Common stock
$-1.78M-16K
-100.00%
0
low
Q1 2026
as of
TrimPowell Industries Inc
Common stock
$-1.78M-3K
-4.15%
75,830
2.18% of portfolio
low
Q1 2026
as of
AddJabil Inc
Common stock
$1.74M+7K
+9.24%
77,197
1.09% of portfolio
low
Q1 2026
as of
NewKosmos Energy Ltd
Common stock
$1.68M+603K
602,542
0.09% of portfolio
low
Q1 2026
as of
Add358010106
Common stock
$1.64M+37K
+32.78%
150,141
0.35% of portfolio
low
Q1 2026
as of
TrimFlex Ltd.
Common stock
$-1.56M-24K
-5.09%
443,128
1.54% of portfolio
low
Q1 2026
as of
ExitVertiv Holdings Co
Common stock
$-1.46M-9K
-100.00%
0
low
Q1 2026
as of
AddSprout Social, Inc.
Common stock
$1.46M+257K
+85.21%
558,350
0.17% of portfolio
low
Q1 2026
as of
TrimAmplitude, Inc.
Common stock
$-1.37M-201K
-35.80%
359,593
0.13% of portfolio
low
Q1 2026
as of
AddAllient Inc
Common stock
$1.27M+22K
+7.14%
323,453
1.02% of portfolio
low
Q1 2026
as of
TrimTapestry Inc
Common stock
$-1.25M-9K
-34.13%
17,038
0.13% of portfolio
low
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