Richard Pzena - Pzena Investment Management
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    158
Portfolio value:    $30,796,447,662
Holdings Activity Buys Sells    History
Holding/activity history for  Diodes Inc. (DIOD)
← All DIOD superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2017   Q4 0 0.00 Sell 100.00% 0.01 $27.20–35.36 · VW $30.25i SEC
2017   Q3 45,273 0.01 Reduce 95.18% 0.11 $25.76–35.28 · VW $31.79i $1,355,000 SEC
2017   Q2 939,163 0.12 Reduce 23.95% 0.04 $22.44–27.50 · VW $25.49i $22,568,000 SEC
2017   Q1 1,234,932 0.17 Reduce 1.99% <0.01 $22.06–26.27 · VW $23.91i $29,700,000 SEC
2016   Q4 1,260,067 0.19 Reduce 20.43% 0.04 $20.01–27.17 · VW $24.02i $32,346,000 SEC
2016   Q3 1,583,658 0.21 Reduce 3.07% <0.01 $17.83–21.63 · VW $20.06i $33,795,000 SEC
2016   Q2 1,633,795 0.19 Reduce 0.64% <0.01 $16.75–20.38 · VW $18.55i $30,699,000 SEC
2016   Q1 1,644,271 0.20 Add 1.02% <0.01 $16.58–20.73 · VW $18.64i $33,050,000 SEC
2015   Q4 1,627,663 0.24 Reduce 1.11% <0.01 $18.21–25.20 · VW $20.85i $37,404,000 SEC
2015   Q3 1,645,938 0.23 Add 44.38% 0.07 $18.42–23.73 · VW $21.68i $35,174,000 SEC
2015   Q2 1,140,007 0.16 Add 0.84% <0.01 $21.54–27.53 · VW $23.75i $27,486,000 SEC
2015   Q1 1,130,482 0.18 Reduce 5.19% <0.01 $25.67–30.65 · VW $27.68i $32,287,000 SEC
2014   Q4 1,192,336 0.18 Reduce 6.68% 0.01 $24.89–27.96 · VW $26.43i $32,873,000 SEC
2014   Q3 1,277,711 0.17 Add 22.77% 0.03 $19.66–27.65 · VW $24.38i $30,563,000 SEC
2014   Q2 1,040,773 0.17 Reduce 36.75% 0.10 $25.31–30.79 · VW $27.20i $30,141,000 SEC
2014   Q1 1,645,500 0.26 Add 15.09% 0.03 $21.46–28.73 · VW $25.52i $42,980,000 SEC
2013   Q4 1,429,730 0.20 Add 15.38% 0.03 $19.26–24.89 · VW $22.35i $33,684,000 SEC
2013   Q3 1,239,191 0.20 Reduce 17.74% 0.05 $22.61–28.46 · VW $25.10i $30,360,000 SEC
2013   Q2 1,506,495 0.27 Reduce 14.21% 0.04 $19.29–28.20 · VW $24.97i $39,124,000 SEC
2013   Q1 1,756,016 0.26 Add 12.32% 0.03 $17.78–21.66 · VW $19.90i $36,841,000 SEC
2012   Q4 1,563,355 0.23 Add 0.49% <0.01 $12.95–19.53 · VW $17.17i $27,124,000 SEC
2012   Q3 1,555,705 0.22 Reduce 1.14% <0.01 $14.64–19.82 · VW $16.54i $26,463,000 SEC
2012   Q2 1,573,670 0.35 Reduce 4.75% 0.02 $17.00–22.97 · VW $19.64i $29,538,000 SEC
2012   Q1 1,652,151 0.40 Reduce 1.12% <0.01 $20.77–27.57 · VW $23.54i $38,297,000 SEC
2011   Q4 1,670,797 0.39 Reduce 2.13% <0.01 $18.40–26.15 · VW $23.44i $35,588,000 SEC
2011   Q3 1,707,175 0.37 Add 53.81% 0.13 $16.74–23.99 · VW $21.03i $30,593,000 SEC
2011   Q2 1,109,959 0.27 Reduce 17.10% 0.07 $21.76–34.67 · VW $26.66i $28,970,000 SEC
2011   Q1 1,338,987 0.41 Reduce 17.31% 0.07 $25.46–34.50 · VW $31.39i $45,606,000 SEC
2010   Q4 1,619,337 0.43 Reduce 17.19% 0.06 $21.97–28.00 · VW $25.24i $43,706,000 SEC
2010   Q3 1,955,587 0.36 Add 23.61% 0.07 $14.50–22.00 · VW $19.49i $33,421,000 SEC
2010   Q2 1,582,075 0.28 Add 81.93% 0.13 $15.56–21.87 · VW $18.37i $25,108,000 SEC
2010   Q1 869,600 0.18 Add 146.53% 0.11 $16.46–24.89 · VW $20.94i $19,479,000 SEC
2009   Q4 352,739 0.09 Add 37.06% 0.02 $15.01–21.10 · VW $17.60i $7,214,000 SEC
2009   Q3 257,364 0.05 Reduce 0.68% <0.01 $16.13–22.17 · VW $18.23i $4,656,000 SEC
2009   Q2 259,114 0.05 Buy 0.05 $11.50–18.96 · VW $16.31i $4,053,000 SEC
Price snapshot:
Current price$92.29
52-week low$42.28
52-week high$125.99