ECHELON CORP

CUSIP: 27874N105 Class: CMN

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

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

Q2 2014
Shares 8,733 Value ($000) $21 Avg Close — Range —
Q1 2014
Shares 12,277 Value ($000) $34 Avg Close — Range —
Q4 2013
Shares 2,556 Value ($000) $6 Avg Close — Range —
Q3 2013
Shares 2,356 Value ($000) $6 Avg Close — Range —
Q2 2013
Shares 3,256 Value ($000) $7 Avg Close — Range —