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Portolan Capital Management’s Ameresco AMRC Stock Holding History

Portolan Capital Management’s Portfolio AMRC Stock Details AMRC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-174,903
Closed -$5.87M – 156
2025
Q3 		$5.87M Buy
+174,903
New +$4M 0.32% 87

Other funds holding AMRC

Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $44.4B AUM 36.05% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.81B AUM 83.9% 1-Year Est. Return

Portolan Capital Management's AMRC Position: Q4 2025 in Review

Portolan Capital Management sold out of Ameresco (AMRC) in Q4 2025, closing a stake of 174,903 shares — an estimated $5.87M sold.

Portolan Capital Management first reported a position in AMRC in Q3 2025 and held it in 1 quarter. The position peaked at $5.87M in Q3 2025. 189 funds tracked by Wall St. Rank hold AMRC as of Q4 2025.

  • Portolan Capital Management reported no remaining Ameresco position as of Q4 2025 after selling out during the quarter.
  • Portolan Capital Management sold 174,903 Ameresco shares in Q4 2025, an estimated $5.87M.
  • Portolan Capital Management first reported a position in Ameresco in Q3 2025 and held it in 1 quarter.
  • Portolan Capital Management's Ameresco position peaked at $5.87M in Q3 2025.
  • 189 funds tracked by Wall St. Rank held Ameresco as of Q4 2025.

Based on Portolan Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.