NATIONAL INTERSTATE CORP

CUSIP: 63654U100 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2015
Shares 41,033 Value ($000) $1,096 Avg Close — Range —
Q3 2015
Shares 22,699 Value ($000) $605 Avg Close — Range —