★
Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

Guided View
New to markets (prices, yields, YTD, market cap)? We explain every term as you browse, in plain English. Same data, with the help built in.

Expert View
You already know the market. Just the data: clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

AMRC

Ameresco, Inc. · Industrials · Engineering & Construction

20.08 -3.9% mkt cap $1.07B quote delayed (FMP) · as of Oct 14 15:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
10Tracked holders
-1Δ holders
3.50MShares held
$82.12MReported value
+0New positions
−1Exits
Strongly Falling Conviction score 32/100 2 quarters of rising tracked shares ●●○○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -9.1% · share flow -13.5% · net new positions -10.0% — formula
Broad distribution — falling shares and fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 73 -1 24.99M $688.47M +6 −9
Q1 2026 79 +3 23.14M $589.38M +8 −5
Q4 2025 75 +3 23.58M $690.61M +3 —
Q3 2025 13 +1 13.74M $461.37M +2 −1
Q2 2025 9 -4 9.92M $150.66M — −4
Q1 2025 10 0 4.58M $55.29M +2 −2
Q4 2024 10 -1 3.50M $82.12M — −1
Q3 2024 10 +1 2.93M $110.99M +1 —
Q2 2024 9 — 2.61M $75.26M — —
Holder count
Who holds it · Q4 2024
#ManagerSharesΔ sharesValueTheir weightHeld
1 State Street Global Advisors ✦ (passive) 1.12M — $26.20M 0.0% n/c 1 SEC ↗
2 Wellington Management ✦ 975.09K -3.0% $22.90M 0.0% ▼ Trim 3 SEC ↗ ×4
3 Geode Capital Management ✦ (passive) 758.95K +0.6% $17.82M 0.0% ▲ Add 3 SEC ↗ ×2
4 D. E. Shaw & Co. ✦ 238.00K +23.0% $5.59M 0.0% ▲ Add 3 SEC ↗
5 Millennium Management ✦ 185.05K -52.3% $4.35M 0.0% ▼ Trim 3 SEC ↗
6 Norges Bank ✦ (passive) 72.36K -39.7% $1.70M 0.0% ▼ Trim 2 SEC ↗
7 Point72 Asset Management ✦ 50.75K -83.3% $1.19M 0.0% ▼ Trim 3 SEC ↗
8 Two Sigma Investments ✦ 47.61K -33.1% $1.12M 0.0% ▼ Trim 3 SEC ↗
9 T. Rowe Price ✦ 30.27K +7.0% $711,000 0.0% ▲ Add 3 SEC ↗
10 Citadel Advisors ✦ 23.43K +379.2% $550,254 0.0% ▲ Add 3 SEC ↗ ×2

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

No new tracked buyers this quarter.

Exited

Marshall Wace $2.13M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 178 holders, 30.59M shares, $745.43M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

Aug 28 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 3.00K sh @ 22.13 · $66,390

Aug 27 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 4.00K sh @ 22.84 · $91,360

Aug 26 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 1.00K sh @ 21.92 · $21,920

Aug 25 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 4.06K sh @ 22.03 · $89,486

Aug 25 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 938 sh @ 21.60 · $20,261

Aug 24 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 5.00K sh @ 20.91 · $104,550

Aug 24 Miller Jennifer L

Director · 2.00K sh @ 20.96 · $41,920

Aug 24 Sutton Joseph W.

Director · 9.70K sh @ 20.87 · $202,439

Aug 21 Cox Brian C

Director · 4.62K sh @ 21.64 · $100,085

Aug 11 Sakellaris George P

Officer, Director, 10% owner · Chief Executive… · 1.00K sh @ 25.90 · $25,900

Open-market sales (S)

Sep 15 Chiplock Mark

Officer · 476 sh · $10,691

Sep 15 Maltezos Louis P

Officer · 592 sh · $13,296

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Oct 13 SC 13G/A — MILLENNIUM MANAGEMENT LLC

View original SEC filing ↗

Oct 08 SC 13G — DIMENSIONAL FUND ADVISORS LP

View original SEC filing ↗

Aug 27 SC 13G — GAGNON SECURITIES LLC

View original SEC filing ↗

Jul 22 SC 13G — MILLENNIUM MANAGEMENT LLC

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q4 2024 · Methodology · Get this via the API