NATIONAL GRID PLC

CUSIP: 636274300 Class: SPONSORED ADR NE

Sigma Planning Corp's Holding History (CIK: 0001449126)

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

Q1 2017
Shares 16,160 Value ($000) $1,026 Avg Close — Range —
Q4 2016
Shares 22,827 Value ($000) $1,332 Avg Close — Range —
Q3 2016
Shares 18,550 Value ($000) $1,319 Avg Close — Range —
Q2 2016
Shares 18,325 Value ($000) $1,362 Avg Close — Range —
Q1 2016
Shares 17,615 Value ($000) $1,258 Avg Close — Range —
Q4 2015
Shares 17,261 Value ($000) $1,200 Avg Close — Range —
Q3 2015
Shares 18,703 Value ($000) $1,302 Avg Close — Range —
Q2 2015
Shares 18,885 Value ($000) $1,219 Avg Close — Range —
Q1 2015
Shares 16,671 Value ($000) $1,077 Avg Close — Range —
Q4 2014
Shares 13,339 Value ($000) $943 Avg Close — Range —