William Darcey

CIK: 0002003467

Transaction Breakdown

Open Market Buys (P)2 (40.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (20.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

NBBK

NB Bancorp, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (5 total)

NBBK
NB Bancorp, Inc.
Apr 24, 2026
Tax Payment(F)
Direct
4.9K shares at avg. $19.82$97K
NBBK
NB Bancorp, Inc.
Jan 2, 2026
Award(A)
Direct
2.4K shares-
NBBK
NB Bancorp, Inc.
Aug 11, 2025
Purchase(P)
Direct
139 shares at avg. $17.29$2K
NBBK
NB Bancorp, Inc.
Aug 11, 2025
Purchase(P)
Direct
4.9K shares at avg. $17.30$84K
NBBK
NB Bancorp, Inc.
Apr 24, 2025
Award(A)
Direct
75.2K shares-

		Type	Shares	Price		Ownership
Apr 24, 2026	NBBK NB Bancorp, Inc.	Tax Payment(F)	4,918	$19.82	$97,475	Direct
Jan 2, 2026	NBBK NB Bancorp, Inc.	Award(A)	2,402	-	$0	Direct
Aug 11, 2025	NBBK NB Bancorp, Inc.	Purchase(P)	139	$17.29	$2,403	Direct
Aug 11, 2025	NBBK NB Bancorp, Inc.	Purchase(P)	4,861	$17.30	$84,095	Direct
Apr 24, 2025	NBBK NB Bancorp, Inc.	Award(A)	75,237	-	-	Direct

1-5 of 5 transactions

About Darcey William

Darcey William (SEC CIK 0002003467) files insider reports with the SEC as Director of NB Bancorp, Inc. (NBBK).

Signal8 holds 5 ownership filings by Darcey William, all Form 4s, filed between Apr 28, 2025 and May 15, 2026. Those filings report 5 transactions, from Apr 24, 2025 to Apr 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Darcey William's filings is in NEEDHAM, MA.

Recent filings by Darcey William

Apr 24, 2026: Tax withholding of NBBK shares (Form 4, code F).
Jan 2, 2026: Grant or award of NBBK shares (Form 4, code A).
Aug 11, 2025: Open-market purchases of NBBK shares (2 lines, Form 4, code P).
Apr 24, 2025: Grant or award of NBBK shares (Form 4, code A).

Other insiders filing for NB Bancorp, Inc. (NBBK)

CAMPANELLI JOSEPH P, President & CEO
Lapointe Jean-Pierre, SEVP and CFO
Henkin Kevin, EVP, Chief Credit Officer
Lynch Christopher R., Director
Montgomery Kenneth C., Director
NOLAN JOSEPH R JR, Director

How to read Form 4 transaction codes