ALPHA & OMEGA SEMICONDUCTOR

Ticker: AOSL CUSIP: G6331P104 Class: Common Stock

RAMSEY QUANTITATIVE SYSTEMS's Holding History (CIK: 0001132897)

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

Q3 2018

Shares 1,984 Value ($000) $23 Avg Close $13.73 Range $11.44 - $16.26

Q2 2018

Shares 5,761 Value ($000) $82 Avg Close $15.40 Range $12.92 - $16.30

Q1 2018

Shares 5,761 Value ($000) $89 Avg Close $16.17 Range $13.53 - $17.82

Q4 2017

Shares 5,761 Value ($000) $94 Avg Close $17.50 Range $16.30 - $18.72

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	1,984	$23	$13.73	$11.44 - $16.26
Q2 2018	5,761	$82	$15.40	$12.92 - $16.30
Q1 2018	5,761	$89	$16.17	$13.53 - $17.82
Q4 2017	5,761	$94	$17.50	$16.30 - $18.72