SKULLCANDY INC

CUSIP: 83083J104 Class: CMN

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2016
Shares 1,256 Value ($000) $4 Avg Close — Range —
Q4 2015
Shares 1,456 Value ($000) $7 Avg Close — Range —
Q3 2015
Shares 1,456 Value ($000) $8 Avg Close — Range —
Q2 2015
Shares 1,356 Value ($000) $10 Avg Close — Range —
Q4 2013
Shares 2,583 Value ($000) $19 Avg Close — Range —