ADTRAN INC

CUSIP: 00738A106 Class: COMMON STOCK

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q2 2015
Shares 178,784 Value ($000) $2,905 Avg Close — Range —
Q1 2015
Shares 178,261 Value ($000) $3,328 Avg Close — Range —
Q4 2014
Shares 184,467 Value ($000) $4,021 Avg Close — Range —
Q3 2014
Shares 205,502 Value ($000) $4,219 Avg Close — Range —
Q2 2014
Shares 211,499 Value ($000) $4,771 Avg Close — Range —
Q1 2014
Shares 223,899 Value ($000) $5,465 Avg Close — Range —
Q4 2013
Shares 229,429 Value ($000) $6,197 Avg Close — Range —
Q3 2013
Shares 233,029 Value ($000) $6,208 Avg Close — Range —
Q2 2013
Shares 239,359 Value ($000) $5,893 Avg Close — Range —