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buyModerate cluster of 5

Roger P. Deschenes bought $22k of TGEN

CAO at TECOGEN INC.. 10,000 shares at an average of $2.23, traded Mar 20, 2026, filed Mar 23, 2026.

Conviction score
44
Value
$22k
10,000 shares
Holdings after
52,962
+23% from before
From 52-week low
+22%
low $1.83, close $2.23
From 52-week high
-82%
high $12.07, as of Mar 20, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $22k at market
    0
  • Relative to holdings
    Holdings up 23%
    +6
  • Price context
    82% below the 52-week high
    +8
  • Cluster
    5 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +83.1%, 3m +156.4%, 6m +40.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TGENOct 12, 2026 · close 2.35
Since filing Mar 23, 2026: -0.4%SPY +19.3% · excess -19.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001537435-26-000020, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 20, 2026POpen-market purchase
Common Stock
+10,000$2.23$22k52,962Mar 23, 2026

Related signals

Other insiders at TECOGEN INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
39Weak
TGENbuy 2
TECOGEN INC.
Ahmed Ghoniem
director
$10k
12,723 shares
-
36Weak
TGENbuy 2
TECOGEN INC.
Susan B Hirsch
director
$19k
5,000 shares
+2%
43Moderate
TGENbuy 5
TECOGEN INC.
Susan B Hirsch
director
$25k
10,000 shares
+4%
38Weak
TGENbuy 5
TECOGEN INC.
Earl R Lewis
director
$13k
5,000 shares
+0%
33Weak
TGENbuy 5
TECOGEN INC.
Earl R Lewis
director
$14k
5,000 shares
+0%
48Moderate
TGENbuy 5
TECOGEN INC.
Abinand Rangesh
Chief Executive Officer
$6,894
3,000 shares
+5%
48Moderate
TGENbuy 5
TECOGEN INC.
John Kimball Whiting IV
General Counsel & Secretary
$24k
10,000 shares
+79%
52Moderate
TGENsell 2
TECOGEN INC.
Robert Panora
COO and President
$551k
102,700 shares
-147%
31Weak
TGENbuy
TECOGEN INC.
Stephen Lafaille
VP of Business Development
$1,000
400 shares
-
58Moderate
TGENsell 2
TECOGEN INC.
Stephen Lafaille
VP of Business Development
$346k
60,000 shares
-577%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Roger P. Deschenes bought $22k of TGEN | InsiderTell