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| 9 Oct 2020 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 7,500 | $27.66 | $207,450 9 Oct 2020 | 58,460 | ↗ |
| 24 Jan 2020 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 40 | $27.94 | $1,118 24 Jan 2020 | 65,960 | ↗ |
| 5 Sep 2019 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 400 | $26.82 | $10,728 5 Sep 2019 | 66,000 | ↗ |
| 6 Apr 2017 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,000 | $33.53 | $67,060 6 Apr 2017 | 9,677 | ↗ |
| 30 Mar 2017 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 15,523 | $33.50 | $520,021 30 Mar 2017 | 11,677 | ↗ |
| 27 Mar 2017 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,043 | $33.25 | $67,930 27 Mar 2017 | 12,977 | ↗ |
| 17 Mar 2017 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 300 | $33.60 | $10,080 17 Mar 2017 | 15,020 | ↗ |
| 15 Mar 2017 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,700 | $33.46 | $123,802 15 Mar 2017 | 10,362 | ↗ |
| 24 Oct 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,000 | $31.90 | $63,800 24 Oct 2016 | 8,108 | ↗ |
| 10 Oct 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,799 | $32.59 | $58,629 10 Oct 2016 | 4,731 | ↗ |
| 22 Sep 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,300 | $32.88 | $42,744 22 Sep 2016 | 799 | ↗ |
| 16 Sep 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,000 | $32.30 | $32,300 16 Sep 2016 | 6,731 | ↗ |
| 18 Aug 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 5,000 | $33.02 | $165,100 18 Aug 2016 | 29,609 | ↗ |
| 22 Jun 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 5,494 | $31.28 | $171,852 22 Jun 2016 | 10,108 | ↗ |
| 13 Jun 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,000 | $31.11 | $62,220 13 Jun 2016 | 37,603 | ↗ |
| 24 May 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 8,000 | $30.83 | $246,640 24 May 2016 | 12,108 | ↗ |
| 16 May 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 400 | $30.65 | $12,260 16 May 2016 | 44,603 | ↗ |
| 28 Apr 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 600 | $31.65 | $18,990 28 Apr 2016 | 15,108 | ↗ |
| 26 Apr 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 5,000 | $31.82 | $159,100 26 Apr 2016 | 45,003 | ↗ |
| 22 Apr 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 200 | $31.76 | $6,352 22 Apr 2016 | 50,003 | ↗ |
| 18 Apr 2016 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 4,000 | $31.59 | $126,360 18 Apr 2016 | 50,203 | ↗ |
| 28 Jul 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 4,600 | $34.12 | $156,952 28 Jul 2015 | 21,520 | ↗ |
| 15 Jul 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,000 | $34.96 | $69,920 15 Jul 2015 | 22,920 | ↗ |
| 10 Jul 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 9,800 | $34.70 | $340,060 10 Jul 2015 | 15,708 | ↗ |
| 1 Jul 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 6,000 | $34.73 | $208,380 1 Jul 2015 | 59,703 | ↗ |
| 22 May 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,000 | $35.92 | $107,760 22 May 2015 | 19,408 | ↗ |
| 22 Apr 2015 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 5,000 | $35.40 | $177,000 22 Apr 2015 | 67,703 | ↗ |
| 24 Sep 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,000 | $37.46 | $74,920 24 Sep 2014 | 72,703 | ↗ |
| 17 Sep 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,000 | $37.82 | $113,460 17 Sep 2014 | 74,703 | ↗ |
| 8 Sep 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,000 | $37.95 | $113,850 8 Sep 2014 | 77,703 | ↗ |
| 25 Aug 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,000 | $38.10 | $114,300 25 Aug 2014 | 20,408 | ↗ |
| 31 Jul 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,750 | $36.54 | $63,945 31 Jul 2014 | 0 | ↗ |
| 10 Jul 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 4,100 | $36.78 | $150,798 10 Jul 2014 | 30,720 | ↗ |
| 22 May 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 88,050 | $35.32 | $3,109,926 22 May 2014 | 0 | ↗ |
| 20 May 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 46,050 | $35.25 | $1,623,263 20 May 2014 | 88,050 | ↗ |
| 14 May 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 391 | $35.71 | $13,963 14 May 2014 | 25,408 | ↗ |
| 2 May 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,474 | $35.59 | $52,460 2 May 2014 | 80,703 | ↗ |
| 6 Mar 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 23,510 | $35.10 | $825,201 6 Mar 2014 | 134,100 | ↗ |
| 3 Mar 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 35,844 | $35.10 | $1,258,124 3 Mar 2014 | 139,415 | ↗ |
| 28 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 2,400 | $34.77 | $83,448 28 Feb 2014 | 62,735 | ↗ |
| 24 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 251 | $34.52 | $8,665 24 Feb 2014 | 63,308 | ↗ |
| 20 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 9,822 | $34.31 | $336,993 20 Feb 2014 | 63,427 | ↗ |
| 14 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 950 | $34.32 | $32,604 14 Feb 2014 | 110,409 | ↗ |
| 7 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,633 | $33.12 | $120,325 7 Feb 2014 | 67,198 | ↗ |
| 5 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,458 | $32.82 | $113,492 5 Feb 2014 | 113,033 | ↗ |
| 3 Feb 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 4,995 | $32.60 | $162,837 3 Feb 2014 | 116,491 | ↗ |
| 31 Jan 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 547 | $33.56 | $18,357 31 Jan 2014 | 121,486 | ↗ |
| 29 Jan 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,000 | $33.31 | $33,310 29 Jan 2014 | 69,007 | ↗ |
| 7 Jan 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,000 | $34.50 | $34,500 7 Jan 2014 | 122,033 | ↗ |
| 2 Jan 2014 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 3,000 | $34.79 | $104,370 2 Jan 2014 | 70,007 | ↗ |
| 11 Dec 2013 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 8,200 | $33.89 | $277,898 11 Dec 2013 | 73,007 | ↗ |
| 1 Nov 2013 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 7,143 | $35.36 | $252,576 1 Nov 2013 | 73,207 | ↗ |
| 21 Oct 2013 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 15,000 | $35.09 | $526,350 21 Oct 2013 | 131,033 | ↗ |
| 11 Sep 2013 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 15,000 | $33.88 | $508,200 11 Sep 2013 | 146,033 | ↗ |
| 26 Oct 2011 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 5,000 | $25.35 | $126,750 26 Oct 2011 | 66,400 | ↗ |
| 9 May 2005 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,200 | $24.80 | $29,760 9 May 2005 | 2,200 | ↗ |
| 5 May 2005 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 600 | $24.65 | $14,790 5 May 2005 | 3,400 | ↗ |
| 4 May 2005 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Sale | 1,000 | $24.59 | $24,590 4 May 2005 | 4,000 | ↗ |
| 16 Nov 2004 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Buy | 3,000 | $30.71 | $92,130 16 Nov 2004 | 3,000 | ↗ |
| 27 Jan 2004 | GAMGeneral American Investors Co., Inc. | Arthur G Jr Altschul Director | Buy | 650 | $30.70 | $19,955 27 Jan 2004 | 177,252 | ↗ |