$AMRC

$18.32 -$0.21 (1.13%) Close

$AMRC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 53.0M shares outstanding

Who owns AMRC?

By type of holder

Institutions 65.3% Insiders 0.0% Everyone else 34.8%

Concentration Top 10 holders own 32.9%

Wellington Management Group LLP 6.4% · BlackRock, Inc. 5.0%

Institutional ownership

65.3%

+2.7 pts vs last qtr

Institutional holders

183

-4 vs last qtr

Net shares bought

+1.4M

by institutions in Q2 2026

New / sold out

27 / 31

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Millennium Management LLC +1.2M
Mackenzie Financial Corp NEW +371.1K

Biggest sellers in Q2 2026

Granahan Investment Management, LLC −606.5K
Royce & Associates LP −251.7K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.45M

7 notices from 3 people

Shares covered

44.4K

0.08% of the company

Arranged in advance

67%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Nickolas Stavropoulos Director 10b5-1 $644K
Frank Wisneski Director $483K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2015–FY2024

+11.5%

+1.22% a year

Each share's claim on the business

−10.3%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$11.8M vs $57.5M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years57% 3–5 years13% 1–3 years17% Under 1 year13%

Quarterly turnover

12.6%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AMRC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
WM Wellington Management Group LLP	3.4M	6.37%	−166.8K (−4.7%)	2022	0.0%
Shares held by quarter Peak holding4.7M (Q3'25) Change over 8 quarters+2.4M Share of the company6.370% Wellington Management Group LLP's full portfolio →
B BlackRock, Inc.	2.7M	5.00%	+194.8K (+7.9%)	≤2021	0.0%
Shares held by quarter Peak holding2.7M (Q2'26) Change over 8 quarters+127.7K Share of the company5.000% BlackRock, Inc.'s full portfolio →

Wellington Management Group LLP

3.4M

% of company

6.37%

Change vs last qtr

−166.8K (−4.7%)

Held since

2022

BlackRock, Inc.

2.7M

% of company

5.00%

Change vs last qtr

+194.8K (+7.9%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Ameresco Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AMRC on Form N-PORT; together they hold 25.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$28.7M	1.0M	1.97%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$23.6M	856.2K	1.62%	0.03%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$28.7M

% of company

1.97%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$23.6M

% of company

1.62%

% of the fund

0.03%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Ameresco Inc and how much of the fund the position is.

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