GRIFFON CORPORATION

CUSIP: 398433AD4 Class: CONV

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q1 2016
Shares 2,000,000 Value ($000) $2,304 Avg Close — Range —
Q2 2015
Shares 3,140,000 Value ($000) $3,841 Avg Close — Range —
Q1 2015
Shares 8,985,000 Value ($000) $11,658 Avg Close — Range —
Q4 2014
Shares 8,985,000 Value ($000) $10,156 Avg Close — Range —
Q3 2014
Shares 8,973,000 Value ($000) $9,938 Avg Close — Range —
Q2 2014
Shares 8,973,000 Value ($000) $10,215 Avg Close — Range —