Henry Ellenbogen - Durable Capital Partners
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    37
Portfolio value:    $9,713,928,029
Holdings Activity Buys Sells    History
Holding/activity history for  IDEXX Laboratories, Inc. (IDXX)
← All IDXX superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2025   Q2 0 0.00 Sell 100.00% 1.37 $356.14–537.47 · VW $461.63i SEC
2025   Q1 364,757 1.37 Buy 1.37 $404.60–474.67 · VW $430.33i $153,179,702 SEC
2023   Q1 0 0.00 Sell 100.00% 0.90 $399.27–515.79 · VW $474.35i SEC
2022   Q4 208,030 0.90 Add 0.15% <0.01 $317.06–448.01 · VW $391.34i $84,867,919 SEC
2022   Q3 207,714 0.76 Add 83.55% 0.35 $321.79–417.77 · VW $366.00i $67,673,000 SEC
2022   Q2 113,166 0.46 Buy 0.46 $318.50–558.01 · VW $397.53i $39,691,000 SEC
2021   Q4 0 0.00 Sell 100.00% 0.12 $575.59–672.93 · VW $633.96i SEC
2021   Q3 25,402 0.12 Reduce 78.70% 0.45 $620.86–706.95 · VW $663.69i $15,798,000 SEC
2021   Q2 119,261 0.57 Reduce 3.00% 0.02 $482.90–639.65 · VW $560.07i $75,319,000 SEC
2021   Q1 122,950 0.53 Reduce 38.51% 0.35 $455.23–573.99 · VW $503.61i $60,161,000 SEC
2020   Q4 199,946 0.92 Reduce 47.80% 0.81 $382.68–503.83 · VW $453.86i $99,947,000 SEC
2020   Q3 383,058 1.69 Reduce 15.97% 0.30 $329.69–407.86 · VW $383.19i $150,584,000 SEC
2020   Q2 455,834 1.87 Add 100.33% 0.94 $226.02–332.68 · VW $292.70i $150,498,000 SEC
2020   Q1 227,540 1.13 Buy 1.13 $168.65–296.25 · VW $245.95i $55,119,000 SEC
Price snapshot:
Current price$564.21
52-week low$506.91
52-week high$769.98