MARIN SOFTWARE INC

CUSIP: 56804t106 Class: COM

CHECK CAPITAL MANAGEMENT INC/CA's Holding History (CIK: 0001032814)

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

Q3 2017
Shares 15,000 Value ($000) $26 Avg Close — Range —
Q2 2017
Shares 15,000 Value ($000) $19 Avg Close — Range —
Q1 2017
Shares 15,000 Value ($000) $27 Avg Close — Range —