WHITE MTNS INS GROUP LTD

CUSIP: g9618e107 Class: com

Douglass Winthrop Advisors, LLC's Holding History (CIK: 0001308527)

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

Q4 2025
Shares 150 Value ($000) $312 Avg Close — Range —
Q3 2025
Shares 150 Value ($000) $251 Avg Close — Range —
Q2 2025
Shares 155 Value ($000) $278 Avg Close — Range —
Q1 2025
Shares 191 Value ($000) $368 Avg Close — Range —
Q3 2020
Shares 600 Value ($000) $467 Avg Close — Range —
Q2 2020
Shares 600 Value ($000) $533 Avg Close — Range —
Q1 2020
Shares 691 Value ($000) $629 Avg Close — Range —
Q4 2019
Shares 719 Value ($000) $802 Avg Close — Range —
Q3 2019
Shares 719 Value ($000) $777 Avg Close — Range —