How many insider declarations has Lafaille Stephen filed?

Lafaille Stephen has filed 3 public insider declarations with SEC (Form 4).

What is Lafaille Stephen's role?

Lafaille Stephen's reported role is not specified by the regulator across the filings.

Which companies does Lafaille Stephen report trades for?

Lafaille Stephen reports trades for TECOGEN INC..

What is Lafaille Stephen's declared buy vs sell volume?

Across the available history, declared buys total 960€ and disposals 0.

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LS

Lafaille Stephen

OFFICERM

·SEC (Form 4)

TECOGEN INC.

0

Total declarations

0

Company

€960

▲ Purchases (1 ops.)

—

▼ Sales (0 ops.)

Insider track record

Other

Disclosed buys

1

Disclosed sells

0

T+90 hit rate

100%

T+90 mean return

+26.2%

Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.

Signal history

No signal scores available.

Explore the complete record of transactions filed by Lafaille Stephen. Insider active across 1 company, notably TECOGEN INC.. In total, 3 reports have been logged. Breakdown: 1 buy · 0 sell. Total volume traded: €960. Activity tracked since 3 March 2025. The latest transaction was disclosed on 24 July 2025 (Attribution). Regulator: SEC (Form 4). The full history is openly available.

Companies and markets linked to Lafaille Stephen

Open company profiles for insider transactions, fundamentals and analyst consensus when available.

TECOGEN INC. (US)

Declarations3 total

◆

Lafaille Stephen

VP of Business DevelopmentExecutives26 Jun 2026TECOGEN INC.

0SEC ↗

29,013 sharesCommon StockSEC:0001537435-26-000050:0

◆

Lafaille Stephen

VP of Business DevelopmentExecutives24 Jul 2025TECOGEN INC.

0SEC ↗

11,976 shares0Common StockSEC:0001537435-25-000122:0

▲

Lafaille Stephen

VP of Business DevelopmentExecutives3 Mar 2025TECOGEN INC.

$1,00023SEC ↗

400 shares@ US$2.50100.0% of flowCommon StockSEC:0001537435-25-000064:0

Canonical exit: 1 Jun 2025 (T+90)

3 of 3 declarations

InsidersTradesSigma

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LS

Lafaille Stephen

OFFICERM

·SEC (Form 4)

TECOGEN INC.

0

Total declarations

0

Company

€960

▲ Purchases (1 ops.)

—

▼ Sales (0 ops.)

Insider track record

Other

Disclosed buys

1

Disclosed sells

0

T+90 hit rate

100%

T+90 mean return

+26.2%

Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.

Signal history

No signal scores available.

Explore the complete record of transactions filed by Lafaille Stephen. Insider active across 1 company, notably TECOGEN INC.. In total, 3 reports have been logged. Breakdown: 1 buy · 0 sell. Total volume traded: €960. Activity tracked since 3 March 2025. The latest transaction was disclosed on 24 July 2025 (Attribution). Regulator: SEC (Form 4). The full history is openly available.