CABOT CORP

Ticker: CBT CUSIP: 127055101 Class: COM

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q1 2017

Shares 100,299 Value ($000) $6,008 Avg Close $45.76 Range $40.66 - $48.88

Q3 2013

Shares 51,559 Value ($000) $2,202 Avg Close $30.22 Range $27.79 - $32.57

Q2 2013

Shares 43,518 Value ($000) $1,628 Avg Close $27.67 Range $23.90 - $30.93

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	100,299	$6,008	$45.76	$40.66 - $48.88
Q3 2013	51,559	$2,202	$30.22	$27.79 - $32.57
Q2 2013	43,518	$1,628	$27.67	$23.90 - $30.93