AMRC insider buying and SEC filings, explained
Ameresco, Inc. · CIK 1488139
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$1.9M
Insiders who bought
4
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$978K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 15, 2026 | Planned (10b5-1) | Mark Chiplock (CFO) sold 476 shares at $22.46 ($11K), marked as a 10b5-1 plan trade. Holdings down 14% to 2,815 shares. | SEC filing Filed Sep 17, 2026 |
| Sep 15, 2026 | Planned (10b5-1) | Louis P Maltezos (President / COO) sold 592 shares at $22.46 ($13K), marked as a 10b5-1 plan trade. Holdings down 2% to 33,628 shares. | SEC filing Filed Sep 17, 2026 |
| Aug 28, 2026 | Purchase (code P) | George P Sakellaris (CEO and Director) bought 3,000 shares at about $22.13 ($66K), reported as a purchase (code P). Holdings up <1% to 1,013,597 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 1, 2026 |
| Aug 26–27, 2026 | Purchase (code P) | George P Sakellaris (CEO and Director) bought 5,000 shares between Aug 26 and Aug 27 at about $22.66 ($113K), reported as a purchase (code P). Holdings up <1% to 1,010,597 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 27, 2026 |
| Aug 24, 2026 | Purchase (code P) | Jennifer L Miller (Director) bought 2,000 shares at $20.96 ($42K), reported as a purchase (code P). Holdings up 6% to 34,546 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 26, 2026 |
| Aug 24, 2026 | Purchase (code P) | Joseph W. Sutton (Director) bought 9,700 shares at about $20.87 ($202K), reported as a purchase (code P). Holdings up 14% to 80,246 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 26, 2026 |
| Aug 24–25, 2026 | Purchase (code P) | George P Sakellaris (CEO and Director) bought 10,000 shares between Aug 24 and Aug 25 at about $21.43 ($214K), reported as a purchase (code P). Holdings up 1% to 1,005,597 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 26, 2026 |
| Aug 21, 2026 | Purchase (code P) | Brian C Cox (Director) bought 4,625 shares at $21.64 ($100K), reported as a purchase (code P). Holdings up 12% to 44,325 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 25, 2026 |
| Aug 10, 2026 | Purchase (code P) | Brian C Cox (Director) bought 39,700 shares at about $25.07 ($995K), reported as a purchase (code P). New position of 39,700 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| Aug 7–11, 2026 | Purchase (code P) | George P Sakellaris (CEO and Director) bought 7,000 shares between Aug 7 and Aug 11 at about $25.85 ($181K), reported as a purchase (code P). Holdings up 1% to 995,597 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| May 18, 2026 | Planned (10b5-1) | Jennifer L Miller (Director) sold 10,000 shares at about $32.27 ($323K), marked as a 10b5-1 plan trade. Holdings down 31% to 22,111 shares. | SEC filing Filed May 19, 2026 |
| May 15, 2026 | Planned (10b5-1) | Nickolas Stavropoulos (Director) sold 1,355 shares at $34.00 ($46K), marked as a 10b5-1 plan trade. Holdings down 9% to 14,111 shares. | SEC filing Filed May 19, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Mark Chiplock (CFO) sold 273 shares at $25.31 ($7K), marked as a 10b5-1 plan trade. Holdings down 14% to 1,666 shares. | SEC filing Filed Mar 12, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Louis P Maltezos (President / COO) sold 306 shares at $25.31 ($8K), marked as a 10b5-1 plan trade. Holdings down 1% to 32,095 shares. | SEC filing Filed Mar 12, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | David J Corrsin (Director and EVP and General Counsel) sold 19 shares indirectly (by spouse) at $25.31 ($481), marked as a 10b5-1 plan trade. Holdings by spouse down 4% to 441 shares. | SEC filing Filed Mar 12, 2026 |
| Mar 10, 2026 | Planned (10b5-1) | David J Corrsin (Director and EVP and General Counsel) sold 50 shares indirectly (by spouse) at $26.34 ($1K), marked as a 10b5-1 plan trade. Holdings by spouse down 12% to 379 shares. | SEC filing Filed Mar 10, 2026 |
| Feb 19–20, 2026 | Planned (10b5-1) | Nickolas Stavropoulos (Director) sold 16,100 shares between Feb 19 and Feb 20 at about $34.15 ($550K), marked as a 10b5-1 plan trade. Holdings down 53% to 14,111 shares. | SEC filing Filed Feb 23, 2026 |
| Feb 12–13, 2026 | Planned (10b5-1) | Nickolas Stavropoulos (Director) sold 445 shares between Feb 12 and Feb 13 at about $34.03 ($15K), marked as a 10b5-1 plan trade. Holdings down 3% to 14,111 shares. | SEC filing Filed Feb 13, 2026 |
| Jan 28, 2026 | Planned (10b5-1) | Nickolas Stavropoulos (Director) sold 100 shares at $34.00 ($3K), marked as a 10b5-1 plan trade. Holdings down 1% to 14,111 shares. | SEC filing Filed Jan 30, 2026 |
35 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
4 insiders bought in 30 days
$1.9M in purchases since Aug 10, 2026 · Purchases traded Aug 10, 2026 to Aug 28, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Brian C Cox (Director) | $995K | Aug 10, 2026 | SEC filing |
| George P Sakellaris (CEO) | $181K | Aug 11, 2026 | SEC filing |
| Brian C Cox (Director) | $100K | Aug 21, 2026 | SEC filing |
| Joseph W. Sutton (Director) | $202K | Aug 24, 2026 | SEC filing |
| Jennifer L Miller (Director) | $42K | Aug 24, 2026 | SEC filing |
| George P Sakellaris (CEO) | $214K | Aug 25, 2026 | SEC filing |
| George P Sakellaris (CEO) | $113K | Aug 27, 2026 | SEC filing |
| George P Sakellaris (CEO) | $66K | Aug 28, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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