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buyWeak

William Darcey bought $86k of NBBK

director at NB Bancorp, Inc.. 5,000 shares at an average of $17.30, traded Aug 11, 2025, filed Aug 12, 2025.

Conviction score
31
Value
$86k
5,000 shares
Holdings after
80,237
+7% from before
From 52-week low
+11%
low $15.48, close $17.16
From 52-week high
-17%
high $20.57, as of Aug 11, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $86k at market
    +9
  • Relative to holdings
    Holdings up 7%
    +3
  • Price context
    17% below the 52-week high
    +4
  • Cluster
    No other insider buying within 14 days
    0
  • 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 +3.2%, 3m +2.3%, 6m +21.6%.

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.

NBBKOct 9, 2026 · close 22.12
Since filing Aug 12, 2025: +23.4%SPY +22.8% · excess +0.6%

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 0001437749-25-026142, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 11, 2025POpen-market purchase
Common Stock
+139$17.29$2,40375,376Aug 12, 2025
Aug 11, 2025POpen-market purchase
Common Stock
+4,861$17.30$84k80,237Aug 12, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
29Weak
NBBKbuy 2
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$44k
2,000 shares
+1%
25Weak
NBBKbuy 2
NB Bancorp, Inc.
Jean-Pierre Lapointe
SEVP and CFO
$4,360
200 shares
+0%
26Weak
NBBKsell
NB Bancorp, Inc.
Kevin Henkin
EVP, Chief Credit Officer
$46k
2,000 shares
-23%
36Weak
NBBKbuy
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$58k
3,000 shares
+1%
40Moderate
NBBKbuy 2
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$49k
2,500 shares
+1%
42Moderate
NBBKbuy 2
NB Bancorp, Inc.
Hope Pascucci
director
$389k
20,000 shares
+16%
46Moderate
NBBKbuy 2
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$104k
5,000 shares
+11%
40Moderate
NBBKbuy 2
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$50k
2,500 shares
+1%
46Moderate
NBBKbuy 2
NB Bancorp, Inc.
Joseph P Campanelli
President & CEO
$104k
5,000 shares
+11%
25Weak
NBBKbuy 2
NB Bancorp, Inc.
Jean-Pierre Lapointe
SEVP and CFO
$20k
1,000 shares
+1%

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.

William Darcey bought $86k of NBBK | InsiderTell