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Insider · CIK 0002076461

Nicolas Karmelek

officer

Files at AVBC (Avidia Bancorp, Inc.). First filing Aug 7, 2025, latest Jul 30, 2026.

In brief

Nicolas Karmelek files SEC Form 4 as officer at AVBC (Avidia Bancorp, Inc.). Since Aug 7, 2025, Nicolas Karmelek has reported 5 open-market buys worth $446k and 0 open-market sells worth $0, the latest filed on Jul 30, 2026.

A track record needs three past buys with six months of prices behind them; Nicolas Karmelek has 2, so none is measured yet.

The newest scored trade: bought $627 of AVBC on Feb 25, 2026, filed Jul 30, 2026, scored 25 (weak). In the last 12 months: 4 buys worth $71k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 2
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
5 / 0
$446k bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

AVBC: Avidia Bancorp, Inc.

AVBCOct 12, 2026 · close 22.07

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
25Weak
AVBCbuy 5
Avidia Bancorp, Inc.
$627
33 shares
+0%+32% from low-3% from high
43Moderate
AVBCbuy 5
Avidia Bancorp, Inc.
$25k
1,209 shares
+19%+46% from low-2% from high
43Moderate
AVBCbuy 5
Avidia Bancorp, Inc.
$25k
1,220 shares
+19%+46% from low-2% from high
41Moderate
AVBCbuy 6
Avidia Bancorp, Inc.
$20k
1,090 shares
+20%+30% from low-5% from high
65Notable
AVBCbuy 8
Avidia Bancorp, Inc.
$375k
25,979 shares
first purchase0% from low-1% from high

Transactions

Every row this insider has filed, 7 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 25, 2026AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+14$18.92$2657,708Jul 30, 2026
May 27, 2026AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+19$19.08$3637,727Jul 30, 2026
Apr 28, 2026AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+1,209$20.76$25k7,694May 5, 2026
Apr 28, 2026AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+1,220$20.76$25k7,705Apr 30, 2026
Mar 2, 2026AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+1,090$18.59$20k6,485Mar 3, 2026
Aug 5, 2025AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stock
+5,200$14.35$75k5,395Aug 7, 2025
Aug 6, 2025AVBC
Avidia Bancorp, Inc.
POpen-market purchase
Common Stockindirect: By 401(k)
+20,779$14.44$300k21,137Aug 7, 2025

Questions about Nicolas Karmelek

Answered from the filings on this page, as of the latest one.

Is Nicolas Karmelek buying or selling?

In the last 12 months Nicolas Karmelek reported 4 open-market buys worth $71k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $627 of AVBC on Feb 25, 2026. Grants, option exercises and tax withholding are not counted.

How did Nicolas Karmelek's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Nicolas Karmelek has 2.

Where does Nicolas Karmelek file Form 4?

Nicolas Karmelek has filed Form 4 at AVBC (Avidia Bancorp, Inc.) as EVP and CRO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.

Nicolas Karmelek: insider trades and track record | InsiderTell