MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

SIGMA INVESTMENT COUNSELORS INC's Holding History (CIK: 0001085163)

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

Q3 2017
Shares 200 Value ($000) $214 Avg Close $1034.02 Range $963.79 - $1086.68