PARKER DRILLING CO

CUSIP: 701081101 Class: COMMON STOCK

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2018
Shares 169,479 Value ($000) $108 Avg Close — Range —
Q4 2017
Shares 185,379 Value ($000) $185 Avg Close — Range —
Q3 2017
Shares 187,289 Value ($000) $206 Avg Close — Range —
Q2 2017
Shares 191,989 Value ($000) $259 Avg Close — Range —
Q1 2017
Shares 182,189 Value ($000) $319 Avg Close — Range —
Q4 2016
Shares 182,189 Value ($000) $474 Avg Close — Range —
Q3 2016
Shares 182,189 Value ($000) $395 Avg Close — Range —
Q2 2016
Shares 182,189 Value ($000) $417 Avg Close — Range —
Q1 2016
Shares 182,189 Value ($000) $386 Avg Close — Range —
Q4 2015
Shares 184,764 Value ($000) $336 Avg Close — Range —
Q3 2015
Shares 184,764 Value ($000) $486 Avg Close — Range —
Q2 2015
Shares 184,954 Value ($000) $614 Avg Close — Range —
Q1 2015
Shares 184,954 Value ($000) $645 Avg Close — Range —
Q4 2014
Shares 184,954 Value ($000) $568 Avg Close — Range —
Q3 2014
Shares 216,551 Value ($000) $1,070 Avg Close — Range —
Q2 2014
Shares 216,551 Value ($000) $1,412 Avg Close — Range —
Q1 2014
Shares 217,297 Value ($000) $1,541 Avg Close — Range —
Q4 2013
Shares 216,592 Value ($000) $1,761 Avg Close — Range —
Q3 2013
Shares 216,558 Value ($000) $1,234 Avg Close — Range —
Q2 2013
Shares 216,633 Value ($000) $1,079 Avg Close — Range —