Thomas Gayner - Markel Group
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    129
Portfolio value:    $11,938,885,174
Holdings Activity Buys Sells    History
Holding/activity history for  Core Laboratories Inc. (CLB)
← All CLB superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2017   Q3 0 0.00 Sell 100.00% 0.24 $86.55–109.63 · VW $98.50i SEC
2017   Q2 110,000 0.24 $101.27 $11,140,000 SEC
2017   Q1 110,000 0.29 $115.52 $12,707,000 SEC
2016   Q4 110,000 0.32 $120.04 $13,204,000 SEC
2016   Q3 110,000 0.32 $112.33 $12,356,000 SEC
2016   Q2 110,000 0.36 $123.89 $13,628,000 SEC
2016   Q1 110,000 0.34 Add 0.92% <0.01 $84.50–118.87 · VW $103.90i $12,365,000 SEC
2015   Q4 109,000 0.33 $108.74 $11,853,000 SEC
2015   Q3 109,000 0.29 $99.80 $10,878,000 SEC
2015   Q2 109,000 0.32 Add 6.86% 0.02 $104.24–134.87 · VW $121.03i $12,430,000 SEC
2015   Q1 102,000 0.28 Add 308.00% 0.21 $87.27–120.34 · VW $103.91i $10,658,000 SEC
2014   Q4 25,000 0.08 Add 150.00% 0.05 $109.88–147.11 · VW $128.86i $3,008,000 SEC
2014   Q3 10,000 0.04 $146.30 $1,463,000 SEC
2014   Q2 10,000 0.05 $167.10 $1,671,000 SEC
2014   Q1 10,000 0.06 $198.40 $1,984,000 SEC
2013   Q4 10,000 0.06 $190.90 $1,909,000 SEC
2013   Q3 10,000 0.06 Add 66.67% 0.02 $145.07–170.86 · VW $154.14i $1,692,000 SEC
2013   Q2 6,000 0.03 Buy 0.03 $124.27–155.32 · VW $141.92i $910,000 SEC
Price snapshot:
Current price$11.45
52-week low$9.70
52-week high$20.33