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Ameres shares owned by Portolan Capital Management

Quarter-by-quarter ownership of Ameres (AMRC) shares owned by Portolan Capital Management from 13F filings

Historical chart of Portolan Capital Management investment in Ameres

Tip: Access up to 7 years of quarterly data

All positions including Ameres held by Portolan Capital Management consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Ameres by Portolan Capital Management

Quarter filed Position value Share count Share price at filing
2025-09-30 $5.9M 175k 33.58

More positions owned by Portolan Capital Management

Modine Manufacturing (MOD)
TTM Technologies (TTMI)
Elf Beauty (ELF)
Digitalbridge Group Cl A New (DBRG)
Celestica (CLS)
Kratos Defense &sec Solutio Com New (KTOS)
Semtech Corporation (SMTC)
AeroVironment (AVAV)
Powell Industries (POWL)
Cellebrite Di Ordinary Shares (CLBT)
Genius Sports Shares Cl A (GENI)
Domo Com Cl B (DOMO)
Talen Energy Corp (TLN)
Flex Ord (FLEX)
Castle Biosciences (CSTL)

View all positions for Portolan Capital Management

Top funds holding Ameres

Wellington Management Company
Grantham, Mayo, Van Otterloo & Co
BlackRock
Vanguard Group
State Street Corporation
Dimensional Fund Advisors
D. E. Shaw & Co
DnB NOR Asset Management AS
Royce & Associates
Granahan Investment Management
Royal Bank of Canada
Gagnon Securities
Geode Capital Management
First Eagle Investment Management
Redwood Grove Capital

View all funds holding Ameres