CLEARSIGN TECHNOLOGIES CORP

Ticker: CLIR CUSIP: 185064102 Class: COM

KEYBANK NATIONAL ASSOCIATION/OH's Holding History (CIK: 0001089877)

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

Q3 2013
Shares 10,800 Value ($000) $76 Avg Close $8.33 Range $6.48 - $9.93
Q2 2013
Shares 12,000 Value ($000) $105 Avg Close $8.40 Range $6.35 - $11.21
Q1 2013
Shares 18,000 Value ($000) $128 Avg Close $5.28 Range $4.12 - $7.51
Q4 2012
Shares 20,778 Value ($000) $101 Avg Close — Range —