Compare · AVBC vs NBBK

AVBC vs NBBK

Side-by-side comparison of Avidia Bancorp Inc. (AVBC) and NB Bancorp Inc. (NBBK): market cap, price performance, sector, and recent activity on the wire.

Summary

Both AVBC and NBBK operate in Banks (Finance), so they compete in similar markets.
NBBK is the larger of the two at $895.9M, about 2.3x AVBC ($389.5M).
Over the past year, AVBC is up 32.8% and NBBK is up 23.7% - AVBC leads by 9.0 points.
AVBC has been more active in the news (4 items in the past 4 weeks vs 2 for NBBK).
NBBK has more recent analyst coverage (1 ratings vs 0 for AVBC).

PerformanceAVBC+32.75%NBBK+18.61%

2025-08-01+0.00%2026-06-08

MetricAVBC NBBK

Company: Avidia Bancorp Inc.; NB Bancorp Inc.
Price: $19.39+0.86%; $20.04+0.65%
Market cap: $389.5M; $895.9M
1M return: -4.41%; -1.43%
1Y return: +32.75%; +23.70%
Sector: Finance; Finance
Industry: Banks; Banks
Exchange: NYSE; NASDAQ
IPO: 2025; 2023
News (4w): 4; 2
Recent ratings: 0; 1

Latest AVBC

5d
CFO and Treasurer Nelson Jonathan Michael bought $20,128 worth of shares (1,065 units at $18.90), increasing direct ownership by 8% to 14,545 units (SEC Form 4)
7d
President & CEO Cozzone Robert D bought $40,006 worth of shares (2,128 units at $18.80) (SEC Form 4)
11d
Avidia Bancorp Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits
20d
EVP and Chief Admin Officer Jensen Barry H bought $9,440 worth of shares (500 units at $18.88), increasing direct ownership by 1% to 42,000 units (SEC Form 4)
24d
Director Gilles Michael O bought $97,496 worth of shares (5,000 units at $19.50), increasing direct ownership by 4% to 25,096 units (SEC Form 4)
24d
EVP and Chief Admin Officer Jensen Barry H bought $9,630 worth of shares (500 units at $19.26), increasing direct ownership by 1% to 41,500 units (SEC Form 4)
24d
President & CEO Cozzone Robert D bought $39,990 worth of shares (2,023 units at $19.77) (SEC Form 4)
25d
SEC Form 10-Q filed by Avidia Bancorp Inc.
28d
EVP and Chief Admin Officer Jensen Barry H bought $20,190 worth of shares (1,000 units at $20.19), increasing direct ownership by 2% to 41,000 units (SEC Form 4)
34d
Amendment: EVP and CRO Karmelek Nicolas bought $25,099 worth of shares (1,209 units at $20.76), increasing direct ownership by 19% to 7,694 units (SEC Form 4)

Latest NBBK

18d
NB Bancorp Inc. filed SEC Form 8-K: Other Events, Financial Statements and Exhibits
21d
President & CEO Campanelli Joseph P bought $57,547 worth of shares (3,000 units at $19.18), increasing direct ownership by 0.80% to 377,790 units (SEC Form 4)
24d
Amendment: SEC Form SCHEDULE 13G/A filed by NB Bancorp Inc.
24d
Amendment: SEC Form 4 filed by Director Lynch Christopher R.
24d
Amendment: SEC Form 4 filed by Director Montgomery Kenneth C.
24d
Amendment: SEC Form 4 filed by Director Nolan Joseph R Jr
24d
Amendment: SEC Form 4 filed by Director Whalen Mark
24d
Amendment: SEC Form 4 filed by Director Jackson Angela
24d
Amendment: SEC Form 4 filed by Director Darcey William
26d
NB Bancorp Inc. filed SEC Form 8-K: Other Events