PROOFPOINT INC

CUSIP: 743424103 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2021
Shares 28,075 Value ($000) $4,878 Avg Close — Range —
Q4 2020
Shares 3,975 Value ($000) $542 Avg Close — Range —
Q2 2020
Shares 1,247 Value ($000) $139 Avg Close — Range —
Q1 2020
Shares 469 Value ($000) $48 Avg Close — Range —
Q4 2019
Shares 475 Value ($000) $55 Avg Close — Range —
Q4 2018
Shares 2,180 Value ($000) $183 Avg Close — Range —
Q4 2017
Shares 6,364 Value ($000) $565 Avg Close — Range —
Q3 2017
Shares 5,264 Value ($000) $459 Avg Close — Range —
Q2 2017
Shares 2,729 Value ($000) $237 Avg Close — Range —
Q3 2016
Shares 1,695 Value ($000) $127 Avg Close — Range —
Q2 2016
Shares 128 Value ($000) $8 Avg Close — Range —
Q3 2015
Shares 1,800 Value ($000) $109 Avg Close — Range —
Q1 2015
Shares 150 Value ($000) $9 Avg Close — Range —