NATIONAL GRID PLC

CUSIP: 636274300 Class: SPONSORED ADR NE

Rock Point Advisors, LLC's Holding History (CIK: 0001301540)

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

Q4 2013
Shares 73,160 Value ($000) $4,779 Avg Close — Range —
Q3 2013
Shares 73,630 Value ($000) $4,348 Avg Close — Range —