SPARTON CORP

CUSIP: 847235108 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2017
Shares 799 Value ($000) $18 Avg Close — Range —
Q3 2017
Shares 799 Value ($000) $19 Avg Close — Range —
Q2 2017
Shares 799 Value ($000) $18 Avg Close — Range —
Q1 2017
Shares 1,200 Value ($000) $25 Avg Close — Range —