NATIONAL GRID PLC

CUSIP: 636274300 Class: SPONSORED ADR NE

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2012
Shares 9,500 Value ($000) $546 Avg Close — Range —
Q3 2012
Shares 6,000 Value ($000) $332 Avg Close — Range —
Q2 2012
Shares 6,000 Value ($000) $318 Avg Close — Range —