TWITTER INC

CUSIP: 90184L102 Class: COM

MARKEL GROUP INC.'s Holding History (CIK: 0001096343)

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

Q3 2021
Shares 10,500 Value ($000) $634 Avg Close — Range —
Q2 2021
Shares 10,500 Value ($000) $723 Avg Close — Range —
Q1 2021
Shares 8,500 Value ($000) $541 Avg Close — Range —
Q4 2020
Shares 8,500 Value ($000) $460 Avg Close — Range —
Q3 2020
Shares 8,500 Value ($000) $378 Avg Close — Range —