INTERNATIONAL SPEEDWAY CORP

CUSIP: 460335201 Class: COMMON STOCK

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

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

Q3 2018
Shares 54,951 Value ($000) $2,407 Avg Close — Range —
Q2 2018
Shares 51,603 Value ($000) $2,307 Avg Close — Range —
Q1 2018
Shares 51,603 Value ($000) $2,276 Avg Close — Range —
Q4 2017
Shares 51,603 Value ($000) $2,056 Avg Close — Range —
Q3 2017
Shares 51,603 Value ($000) $1,858 Avg Close — Range —
Q2 2017
Shares 47,126 Value ($000) $1,770 Avg Close — Range —
Q1 2017
Shares 43,558 Value ($000) $1,609 Avg Close — Range —
Q4 2016
Shares 25,470 Value ($000) $937 Avg Close — Range —
Q3 2016
Shares 12,292 Value ($000) $411 Avg Close — Range —
Q2 2016
Shares 259,842 Value ($000) $8,691 Avg Close — Range —
Q1 2016
Shares 263,872 Value ($000) $9,740 Avg Close — Range —
Q4 2015
Shares 12,292 Value ($000) $414 Avg Close — Range —
Q3 2015
Shares 133,538 Value ($000) $4,236 Avg Close — Range —
Q2 2015
Shares 12,292 Value ($000) $451 Avg Close — Range —
Q1 2015
Shares 87,786 Value ($000) $2,863 Avg Close — Range —
Q4 2014
Shares 43,852 Value ($000) $1,388 Avg Close — Range —
Q3 2014
Shares 44,293 Value ($000) $1,402 Avg Close — Range —
Q2 2014
Shares 43,232 Value ($000) $1,439 Avg Close — Range —
Q1 2014
Shares 43,726 Value ($000) $1,486 Avg Close — Range —
Q4 2013
Shares 43,726 Value ($000) $1,552 Avg Close — Range —
Q3 2013
Shares 43,053 Value ($000) $1,390 Avg Close — Range —