Steven M. Klein

CIK: 0001409460

Transaction Breakdown

Open Market Buys (P)1 (5.9%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (17.6%)

Compensation grants

Other (G, F, J, C, D, …)13 (76.5%)

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

Companies & Roles (3)

CLBK

Columbia Financial, Inc./MD/

DirectorOfficer

NFBK

Northfield Bancorp, Inc.

DirectorOfficer

MSEX

MIDDLESEX WATER CO

Director

Discretionary Trading P&L

Holdings

Transaction History (17 total)

CLBK
Columbia Financial, Inc./MD/
Jul 20, 2026
Purchase(P)
Direct
50K shares at avg. $10.00$500K
NFBK
Northfield Bancorp, Inc.
Jul 20, 2026
Disposition(D)
Direct
464.3K shares-
NFBK
Northfield Bancorp, Inc.
Jul 20, 2026
Disposition(D)
Indirect
67K shares-
NFBK
Northfield Bancorp, Inc.
Jul 20, 2026
Disposition(D)
Indirect
59.1K shares-
NFBK
Northfield Bancorp, Inc.
Jul 14, 2026
Tax Payment(F)
Direct
9.7K shares at avg. $14.72$143K
MSEX
MIDDLESEX WATER CO
Apr 1, 2026
Award(A)
Direct
865 shares at avg. $52.05$45K
NFBK
Northfield Bancorp, Inc.
Jan 29, 2026
Tax Payment(F)
Direct
1.1K shares at avg. $12.15$14K
NFBK
Northfield Bancorp, Inc.
Jan 27, 2026
Tax Payment(F)
Direct
2.2K shares at avg. $11.99$26K
NFBK
Northfield Bancorp, Inc.
Jan 26, 2026
Tax Payment(F)
Direct
2.7K shares at avg. $11.89$32K
NFBK
Northfield Bancorp, Inc.
Jan 24, 2026
Tax Payment(F)
Direct
4K shares at avg. $11.89$47K
MSEX
MIDDLESEX WATER CO
Apr 1, 2025
Award(A)
Direct
702 shares at avg. $64.10$45K
NFBK
Northfield Bancorp, Inc.
Feb 17, 2025
Tax Payment(F)
Direct
705 shares at avg. $11.82$8K
NFBK
Northfield Bancorp, Inc.
Jan 29, 2025
Tax Payment(F)
Direct
1.1K shares at avg. $11.55$13K
NFBK
Northfield Bancorp, Inc.
Jan 28, 2025
Tax Payment(F)
Direct
1.5K shares at avg. $11.68$18K
NFBK
Northfield Bancorp, Inc.
Jan 27, 2025
Tax Payment(F)
Direct
2.2K shares at avg. $11.87$26K
NFBK
Northfield Bancorp, Inc.
Jan 26, 2025
Tax Payment(F)
Direct
2.7K shares at avg. $11.66$31K
NFBK
Northfield Bancorp, Inc.
Jan 24, 2025
Award(A)
Direct
24.2K shares-

		Type	Shares	Price		Ownership
Jul 20, 2026	CLBK Columbia Financial, Inc./MD/	Purchase(P)	50,000	$10.00	$500,000	Direct
Jul 20, 2026	NFBK Northfield Bancorp, Inc.	Disposition(D)	464,261	-	$0	Direct
Jul 20, 2026	NFBK Northfield Bancorp, Inc.	Disposition(D)	66,997	-	$0	Indirect
Jul 20, 2026	NFBK Northfield Bancorp, Inc.	Disposition(D)	59,119	-	$0	Indirect
Jul 14, 2026	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	9,732	$14.72	$143,255	Direct
Apr 1, 2026	MSEX MIDDLESEX WATER CO	Award(A)	865	$52.05	$45,023	Direct
Jan 29, 2026	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	1,125	$12.15	$13,669	Direct
Jan 27, 2026	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	2,187	$11.99	$26,222	Direct
Jan 26, 2026	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	2,680	$11.89	$31,865	Direct
Jan 24, 2026	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	3,957	$11.89	$47,049	Direct
Apr 1, 2025	MSEX MIDDLESEX WATER CO	Award(A)	702	$64.10	$44,998	Direct
Feb 17, 2025	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	705	$11.82	$8,333	Direct
Jan 29, 2025	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	1,125	$11.55	$12,994	Direct
Jan 28, 2025	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	1,534	$11.68	$17,917	Direct
Jan 27, 2025	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	2,187	$11.87	$25,960	Direct
Jan 26, 2025	NFBK Northfield Bancorp, Inc.	Tax Payment(F)	2,679	$11.66	$31,237	Direct
Jan 24, 2025	NFBK Northfield Bancorp, Inc.	Award(A)	24,233	-	$0	Direct

1-17 of 17 transactions

About Klein Steven M

Klein Steven M (SEC CIK 0001409460) files insider reports with the SEC as Sr. EVP, COO of Columbia Financial, Inc./MD/ (CLBK), Chairman, President & CEO of Northfield Bancorp, Inc. (NFBK) and Director of MIDDLESEX WATER CO (MSEX).

Signal8 holds 11 ownership filings by Klein Steven M (1 Form 3, 10 Form 4), filed between Jan 28, 2025 and Jul 22, 2026. Those filings report 17 transactions, from Jan 24, 2025 to Jul 20, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Klein Steven M's filings is in WOODBRIDGE, NJ.

Recent filings by Klein Steven M

Jul 20, 2026: Open-market purchase of CLBK shares (Form 4, code P).
Jul 20, 2026: Disposition to issuer transactions of NFBK shares (3 lines, Form 4, code D).
Jul 14, 2026: Tax withholding of NFBK shares (Form 4, code F).
Apr 1, 2026: Grant or award of MSEX shares (Form 4, code A).
Jan 29, 2026: Tax withholding of NFBK shares (Form 4, code F).

Other insiders filing for Columbia Financial, Inc./MD/ (CLBK)

Kemly Thomas J., President & CEO
Klimowich John, SEVP & Chief Risk Officer
Holland Noel R., Director
Prabhu Manesh Balachandran, EVP & CIO
Schlesinger Allyson Katz, SEVP&Head of Consumer Banking
Sorrentini Lucy, Director

How to read Form 4 transaction codes