STILLWATER MNG CO

CUSIP: 86074Q102 Class: COM

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

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

Q1 2017
Shares 1,095,401 Value ($000) $18,917 Avg Close — Range —
Q4 2016
Shares 888,501 Value ($000) $14,313 Avg Close — Range —
Q3 2016
Shares 148,972 Value ($000) $1,991 Avg Close — Range —
Q4 2015
Shares 10,543 Value ($000) $90 Avg Close — Range —
Q3 2015
Shares 70,538 Value ($000) $729 Avg Close — Range —
Q2 2015
Shares 269,422 Value ($000) $3,123 Avg Close — Range —
Q1 2015
Shares 272,243 Value ($000) $3,517 Avg Close — Range —
Q4 2014
Shares 333,132 Value ($000) $4,910 Avg Close — Range —
Q3 2014
Shares 195,501 Value ($000) $2,938 Avg Close — Range —
Q4 2013
Shares 386,851 Value ($000) $4,773 Avg Close — Range —
Q3 2013
Shares 2,176,592 Value ($000) $23,964 Avg Close — Range —
Q2 2013
Shares 2,818,339 Value ($000) $30,269 Avg Close — Range —