Northfield Bancorp, Inc. — Director's Dealing 2018

May 14, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Northfield Bancorp, Inc. (NFBK)
CIK: 0001493225
Period of Report: 2018-05-10

Reporting Person: Doherty Kenneth J (EVP & Chief Lending Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-10	Common Stock	S	2449	$16.1858	Disposed	198742	Direct
2018-05-11	Common Stock	S	10000	$15.9574	Disposed	188742	Direct
2018-05-14	Common Stock	M	45000	$7.085	Acquired	233742	Direct
2018-05-14	Common Stock	F	20205	$15.78	Disposed	213537	Direct
2018-05-14	Common Stock	S	7400	$15.8731	Disposed	206137	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-14	Stock Options	$7.085	M	45000	Disposed	2019-01-30	Common Stock (45000.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	24974.9074	Indirect
Common Stock	44692.398	Indirect
Common Stock	3368.237	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options	$13.13	2024-06-11	Common Stock (207000.0)	207000	Direct
Stock Options	$14.67	2025-05-27	Common Stock (75000.0)	75000	Direct

Footnotes

F1: Represents shares sold by the Reporting Person to satisfy tax obligations in connection with an exercise of stock appreciation rights.

F2: The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $16.16 to $16.20, inclusive. The reporting person undertakes to provide to Northfield Bancorp, Inc., any security holder of Northfield Bancorp, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

F3: The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $15.92 to $16.00, inclusive. The reporting person undertakes to provide to Northfield Bancorp, Inc., any security holder of Northfield Bancorp, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

F4: The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $15.86 to $15.93, inclusive. The reporting person undertakes to provide to Northfield Bancorp, Inc., any security holder of Northfield Bancorp, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

F5: Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.