WILLIAMS COS INC

Ticker: WMB CUSIP: 969457100 Class: COM

GRANDFIELD & DODD, LLC's Holding History (CIK: 0001308016)

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

Q4 2015

Shares 242,097 Value ($000) $6,222 Avg Close $19.57 Range $11.96 - $24.82

Q3 2015

Shares 195,545 Value ($000) $7,206 Avg Close $27.42 Range $19.32 - $32.32

Q2 2015

Shares 196,361 Value ($000) $11,269 Avg Close $28.07 Range $25.45 - $33.76

Q1 2015

Shares 199,626 Value ($000) $10,099 Avg Close $24.96 Range $21.50 - $27.79

Q4 2014

Shares 187,061 Value ($000) $8,407 Avg Close $27.17 Range $22.11 - $30.22

Q3 2014

Shares 196,929 Value ($000) $10,900 Avg Close $30.23 Range $28.50 - $31.38

Q2 2014

Shares 218,992 Value ($000) $12,748 Avg Close $24.17 Range $20.45 - $31.33

Q1 2014

Shares 218,112 Value ($000) $8,851 Avg Close $20.92 Range $19.46 - $22.12

Q4 2013

Shares 214,272 Value ($000) $8,264 Avg Close $18.38 Range $17.44 - $19.93

Q3 2013

Shares 209,692 Value ($000) $7,624 Avg Close $17.72 Range $16.33 - $18.83

Q2 2013

Shares 196,226 Value ($000) $6,371 Avg Close $18.03 Range $15.77 - $19.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	242,097	$6,222	$19.57	$11.96 - $24.82
Q3 2015	195,545	$7,206	$27.42	$19.32 - $32.32
Q2 2015	196,361	$11,269	$28.07	$25.45 - $33.76
Q1 2015	199,626	$10,099	$24.96	$21.50 - $27.79
Q4 2014	187,061	$8,407	$27.17	$22.11 - $30.22
Q3 2014	196,929	$10,900	$30.23	$28.50 - $31.38
Q2 2014	218,992	$12,748	$24.17	$20.45 - $31.33
Q1 2014	218,112	$8,851	$20.92	$19.46 - $22.12
Q4 2013	214,272	$8,264	$18.38	$17.44 - $19.93
Q3 2013	209,692	$7,624	$17.72	$16.33 - $18.83
Q2 2013	196,226	$6,371	$18.03	$15.77 - $19.26