PIONEER ENERGY SVCS CORP

CUSIP: 723664108 Class: COM

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q3 2014
Shares 17,000 Value ($000) $238 Avg Close — Range —
Q2 2014
Shares 21,400 Value ($000) $375 Avg Close — Range —
Q1 2014
Shares 21,400 Value ($000) $277 Avg Close — Range —