CHAMPIONX CORPORATION

CUSIP: 15872M104 Class: Common Stock

VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.'s Holding History (CIK: 0001021642)

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

Q2 2021
Shares 568,270 Value ($000) $14,576 Avg Close — Range —
Q1 2021
Shares 2,672,825 Value ($000) $58,080 Avg Close — Range —
Q4 2020
Shares 1,926,590 Value ($000) $29,477 Avg Close — Range —