PROOFPOINT INC

CUSIP: 743424103 Class: COM

OSTERWEIS CAPITAL MANAGEMENT INC's Holding History (CIK: 0001007524)

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

Q1 2017
Shares 39,753 Value ($000) $2,956 Avg Close — Range —
Q4 2016
Shares 37,568 Value ($000) $2,654 Avg Close — Range —