North Star Investment Management Corp. - PROOFPOINT INC ownership

PROOFPOINT INC's ticker is and the CUSIP is 743424AD5. A total of 40 filers reported holding PROOFPOINT INC in Q1 2017. The put-call ratio across all filers is - and the average weighting 0.3%.

Quarter-by-quarter ownership
North Star Investment Management Corp. ownership history of PROOFPOINT INC
ValueSharesWeighting
Q2 2018$3,0000.0%2,0000.0%0.00%
Q1 2018$3,0000.0%2,0000.0%0.00%
Q4 2017$3,000
+50.0%
2,0000.0%0.00%
Q3 2017$2,0000.0%2,0000.0%0.00%
Q2 2017$2,0000.0%2,0000.0%0.00%
Q1 2017$2,0002,0000.00%
Other shareholders
PROOFPOINT INC shareholders Q1 2017
NameSharesValueWeighting ↓
SHENKMAN CAPITAL MANAGEMENT INC 23,456,000$29,335,0002.64%
MACKAY SHIELDS LLC 23,038,000$28,789,0001.22%
Nicholas Investment Partners, LP 9,915,000$12,351,0000.87%
ADVENT CAPITAL MANAGEMENT /DE/ 23,071,000$28,662,0000.55%
SSI INVESTMENT MANAGEMENT LLC 2,779,000$3,459,0000.30%
Calamos Advisors LLC 30,297,000$37,824,0000.28%
RWC Asset Management LLP 3,500,000$4,360,0000.25%
Calamos Wealth Management LLC 901,000$1,125,0000.16%
OAKTREE CAPITAL MANAGEMENT LP 5,306,000$6,617,0000.11%
SG Americas Securities, LLC 76,670$9,550,0000.09%
View complete list of PROOFPOINT INC shareholders