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buyModerate cluster of 4

Anthony Folger bought $23k of CSPI

director at CSP INC /MA/. 2,500 shares at an average of $9.36, traded May 15, 2026, filed May 18, 2026.

Conviction score
44
Value
$23k
2,500 shares
Holdings after
12,500
+25% from before
From 52-week low
+17%
low $7.88, close $9.24
From 52-week high
-39%
high $15.17, as of May 15, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $23k at market
    0
  • Relative to holdings
    Holdings up 25%
    +6
  • Price context
    39% below the 52-week high
    +8
  • Cluster
    4 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 -9.0%, 3m -16.0%, 6m -.

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.

CSPIOct 9, 2026 · close 7.36
Since filing May 18, 2026: -21.5%SPY +5.9% · excess -27.4%

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 0001282498-26-000016, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 15, 2026POpen-market purchase
Common Stock
+2,500$9.36$23k12,500May 18, 2026

Related signals

Other insiders at CSP INC /MA/ and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
8Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$36k
4,600 shares
+0%
30Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$29k
3,370 shares
+0%
38Weak
CSPIbuy 4
CSP INC /MA/
Ismail Azeri
director
$23k
2,500 shares
+2%
36Weak
CSPIbuy 4
CSP INC /MA/
Joseph R Nerges
owner
$39k
4,248 shares
+0%
44Moderate
CSPIbuy 4
CSP INC /MA/
Stephen J. Webber
director
$24k
2,500 shares
+25%
25Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$19k
2,207 shares
+0%
30Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$26k
3,000 shares
+0%
30Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$102k
11,012 shares
+1%
10Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$25k
2,200 shares
+0%
31Weak
CSPIbuy
CSP INC /MA/
Joseph R Nerges
owner
$46k
3,850 shares
+0%

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.

Anthony Folger bought $23k of CSPI | InsiderTell