MAKO SURGICAL CORP

CUSIP: 560879108 Class: CMN

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q3 2013
Shares 706,600 Value ($000) $20,852 Avg Close — Range —
Q2 2013
Shares 299,700 Value ($000) $3,611 Avg Close — Range —