EXACT SCIENCES CORP

Ticker: EXAS CUSIP: 30063P105 Class: EQTY

America First Investment Advisors, LLC's Holding History (CIK: 0001308778)

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

Q2 2017

Shares 445 Value ($000) $16 Avg Close $30.87 Range $22.18 - $38.92

Q1 2017

Shares 445 Value ($000) $11 Avg Close $19.82 Range $13.05 - $24.50

Q4 2016

Shares 445 Value ($000) $6 Avg Close $16.14 Range $13.22 - $20.40

Q3 2016

Shares 445 Value ($000) $8 Avg Close $17.62 Range $11.48 - $22.80

Q2 2016

Shares 445 Value ($000) $5 Avg Close $7.53 Range $5.36 - $13.20

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	445	$16	$30.87	$22.18 - $38.92
Q1 2017	445	$11	$19.82	$13.05 - $24.50
Q4 2016	445	$6	$16.14	$13.22 - $20.40
Q3 2016	445	$8	$17.62	$11.48 - $22.80
Q2 2016	445	$5	$7.53	$5.36 - $13.20