NORTHFIELD BANCORP INC DEL

Ticker: NFBK CUSIP: 66611T108 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014

Shares 837,150 Value ($000) $11,402 Avg Close $9.00 Range $8.63 - $9.53

Q2 2014

Shares 1,216,150 Value ($000) $15,944 Avg Close $8.81 Range $8.43 - $9.23

Q1 2014

Shares 1,561,750 Value ($000) $20,084 Avg Close $8.66 Range $8.30 - $8.98

Q4 2013

Shares 1,561,750 Value ($000) $20,615 Avg Close $8.59 Range $8.08 - $9.08

Q3 2013

Shares 1,561,750 Value ($000) $18,960 Avg Close $8.10 Range $7.68 - $8.42

Q2 2013

Shares 1,561,750 Value ($000) $18,304 Avg Close $7.68 Range $7.31 - $7.98

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	837,150	$11,402	$9.00	$8.63 - $9.53
Q2 2014	1,216,150	$15,944	$8.81	$8.43 - $9.23
Q1 2014	1,561,750	$20,084	$8.66	$8.30 - $8.98
Q4 2013	1,561,750	$20,615	$8.59	$8.08 - $9.08
Q3 2013	1,561,750	$18,960	$8.10	$7.68 - $8.42
Q2 2013	1,561,750	$18,304	$7.68	$7.31 - $7.98