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buyNotable cluster of 8

Jonathan Michael Nelson bought $143k of AVBC

CFO and Treasurer at Avidia Bancorp, Inc.. 9,923 shares at an average of $14.45, traded Aug 8, 2025, filed Aug 11, 2025.

Conviction score
71
Value
$143k
9,923 shares
Holdings after
9,923
change unknown
From 52-week low
+2%
low $14.20, close $14.46
From 52-week high
-0%
high $14.52, as of Aug 8, 2025

Score components

  • Role
    CFO
    +22
  • Trade size
    $143k at market
    +11
  • Relative to holdings
    First purchase: no shares before this trade
    +8
  • Price context
    2% above the 52-week low
    +10
  • Cluster
    8 insiders buying within 14 days
    +15
  • Repeat buying
    2 buys in 90 days
    +5
  • 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 +6.4%, 3m +5.0%, 6m +34.9%.

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.

AVBCOct 12, 2026 · close 22.07
Since filing Aug 11, 2025: +53.6%SPY +24.0% · excess +29.6%

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 0001437749-25-025929, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 8, 2025POpen-market purchase
Common Stockindirect: By 401(k)
+9,923$14.45$143k9,923Aug 11, 2025

Related signals

Other insiders at Avidia Bancorp, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
AVBCsell
Avidia Bancorp, Inc.
Michael Neil Flanigan
director
$112k
5,000 shares
-100%
43Moderate
AVBCbuy 2
Avidia Bancorp, Inc.
Michael Dennis Murphy
director, other
$111k
5,000 shares
+270%
53Moderate
AVBCbuy 3
Avidia Bancorp, Inc.
Jonathan Michael Nelson
CFO and Treasurer
$100k
4,500 shares
+31%
48Moderate
AVBCbuy 3
Avidia Bancorp, Inc.
Joseph F Grimaldo
director
$110k
5,000 shares
+11%
39Weak
AVBCbuy 3
Avidia Bancorp, Inc.
Thomas Doane
EVP- Human Resources
$39k
1,726 shares
+10%
43Moderate
AVBCbuy 3
Avidia Bancorp, Inc.
Joseph F Grimaldo
director
$100k
4,655 shares
+12%
51Moderate
AVBCbuy 3
Avidia Bancorp, Inc.
Kennedy O Saul
director
$128k
5,900 shares
+142%
45Moderate
AVBCbuy 3
Avidia Bancorp, Inc.
Michael O Gilles
director
$57k
3,000 shares
+12%
25Weak
AVBCbuy 5
Avidia Bancorp, Inc.
Nicolas Karmelek
EVP and CRO
$627
33 shares
+0%
38Weak
AVBCbuy 2
Avidia Bancorp, Inc.
Jonathan Michael Nelson
CFO and Treasurer
$20k
1,065 shares
+8%

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.

Jonathan Michael Nelson bought $143k of AVBC | InsiderTell