Mason Hawkins - Southeastern Asset Management Inc
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    49
Portfolio value:    $2,032,773,449
Holdings Activity Buys Sells    History
Holding/activity history for  Pioneer Natural Resources Comp (PXD)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2011   Q2 0 0.00 Sell 100.00% 2.81 SEC
2011   Q1 5,879,675 2.81 Reduce 53.39% 2.85 $101.92 $599,257,000 SEC
2010   Q4 12,613,975 5.33 Reduce 19.40% 1.09 $86.82 $1,095,145,000 SEC
2010   Q3 15,649,491 5.62 Reduce 22.99% 1.72 $65.03 $1,017,687,000 SEC
2010   Q2 20,321,791 7.50 Reduce 6.33% 0.45 $59.45 $1,208,131,000 SEC
2010   Q1 21,696,091 7.08 Reduce 3.68% 0.23 $56.32 $1,221,924,000 SEC
2009   Q4 22,526,175 6.37 Reduce 0.52% 0.02 $48.17 $1,085,086,000 SEC
2009   Q3 22,643,675 4.33 Reduce 0.15% <0.01 $36.29 $821,739,000 SEC
2009   Q2 22,678,275 3.48 Reduce 0.42% 0.01 $25.50 $578,296,000 SEC
2009   Q1 22,774,957 2.45 Reduce 0.83% 0.02 $16.47 $375,104,000 SEC
2008   Q4 22,964,757 2.39 Reduce 0.21% 0.01 $16.18 $371,569,000 SEC
2008   Q3 23,012,957 4.98 Reduce 0.57% 0.04 $52.28 $1,203,117,000 SEC
2008   Q2 23,145,957 6.38 Reduce 1.75% 0.08 $78.28 $1,811,865,000 SEC
2008   Q1 23,558,557 4.44 Reduce 1.21% 0.05 $49.12 $1,157,196,000 SEC
2007   Q4 23,846,057 4.23 Reduce 0.82% 0.03 $48.84 $1,164,641,000 SEC
2007   Q3 24,042,557 3.82 Reduce 0.74% 0.03 $44.98 $1,081,435,000 SEC
2007   Q2 24,221,557 4.40 $48.71 $1,179,832,000 SEC
2007   Q1 24,221,557 4.38 Add 3.25% 0.14 $43.11 $1,044,192,000 SEC
2006   Q4 23,458,400 4.07 Add 1.96% 0.08 $39.69 $931,064,000 SEC
2006   Q3 23,007,500 4.04 Add 5.45% 0.21 $39.12 $900,053,000 SEC
2006   Q2 21,817,700 4.82 Add 29.79% 1.11 $46.41 $1,012,560,000 SEC
2006   Q1 16,810,000 3.39 Add 0.60% 0.02 $44.25 $743,843,000 SEC
2005   Q4 16,710,000 3.95 Reduce 0.43% 0.02 $51.27 $856,722,000 SEC
2005   Q3 16,782,568 4.47 Reduce 0.97% 0.04 $54.92 $921,699,000 SEC
2005   Q2 16,947,568 3.93 Add 24.59% 0.78 $42.08 $713,153,000 SEC
2005   Q1 13,602,168 3.50 Reduce 0.13% <0.01 $42.72 $581,085,000 SEC
2004   Q4 13,619,600 2.99 $35.10 $478,049,000 SEC
2004   Q3 13,619,600 3.17 Reduce 2.67% 0.09 $34.48 $469,604,000 SEC
2004   Q2 13,993,600 3.42 Reduce 9.89% 0.35 $35.08 $490,895,000 SEC
2004   Q1 15,529,800 3.51 Reduce 18.23% 0.74 $32.30 $501,613,000 SEC
2003   Q4 18,991,100 4.08 Reduce 3.77% 0.13 $31.93 $606,386,000 SEC
2003   Q3 19,735,200 3.57 Reduce 1.17% 0.04 $25.46 $502,458,000 SEC
2003   Q2 19,969,000 3.71 Reduce 2.79% 0.12 $26.10 $521,191,000 SEC
2003   Q1 20,543,000 4.27 Reduce 0.22% <0.01 $25.10 $515,629,000 SEC
2002   Q4 20,588,394 4.27 Reduce 11.73% 0.60 $25.25 $519,856,000 SEC
2002   Q3 23,324,226 5.09 Reduce 9.64% 0.47 $24.25 $565,612,000 SEC
2002   Q1 25,812,339 4.89 Reduce 0.07% <0.01 $22.29 $575,357,000 SEC
2001   Q4 25,831,096 4.32 Reduce 2.19% 0.08 $19.26 $497,507,000 SEC
2001   Q3 26,409,189 3.47 $14.23 $375,803,000 SEC
2001   Q2 26,409,189 3.89 Reduce 0.38% 0.01 $17.05 $450,277,000 SEC
2001   Q1 26,509,189 3.58 Add 1.13% 0.04 $15.70 $416,194,000 SEC
2000   Q4 26,212,032 4.19 Reduce 0.16% <0.01 $19.69 $516,049,000 SEC
2000   Q3 26,253,032 3.32 Reduce 0.07% <0.01 $14.19 $372,466,000 SEC
2000   Q2 26,271,532 3.13 Reduce 0.47% 0.01 $12.75 $334,962,000 SEC
2000   Q1 26,395,532 2.71 Reduce 0.74% 0.02 $10.50 $277,153,000 SEC
1999   Q4 26,593,532 2.65 Add 0.20% <0.01 $8.94 $237,680,000 SEC
1999   Q3 26,541,532 3.12 Add 0.76% 0.02 $10.62 $282,003,000 SEC
1999   Q2 26,342,432 3.46 Add 0.20% <0.01 $11.00 $289,766,000 SEC
1999   Q1 26,289,632 2.76 $7.75 $203,744,000 SEC