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  Regeneron Pharmaceuticals, Inc. (REGN)
← All REGN superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2023   Q1 0 0.00 Sell 100.00% 0.30 $668.00–835.00 · VW $764.94i SEC
2022   Q4 30,500 0.30 Reduce 62.02% 0.51 $694.64–779.00 · VW $737.35i $22,005,445 SEC
2022   Q3 80,300 0.82 $688.88 $55,317,000 SEC
2022   Q2 80,300 0.68 $591.12 $47,467,000 SEC
2022   Q1 80,300 0.67 Add 1.26% <0.01 $592.86–710.21 · VW $634.24i $56,083,000 SEC
2021   Q4 79,300 0.58 Add 6.73% 0.04 $539.18–673.86 · VW $623.61i $50,080,000 SEC
2021   Q3 74,300 0.57 Add 11.23% 0.06 $554.95–686.62 · VW $620.34i $44,965,000 SEC
2021   Q2 66,800 0.48 Add 46.81% 0.15 $469.37–569.99 · VW $511.45i $37,310,000 SEC
2021   Q1 45,500 0.30 Buy 0.30 $441.00–558.91 · VW $482.65i $21,528,000 SEC
Price snapshot:
Current price$663.09
52-week low$538.55
52-week high$818.90