The largest sale of all time was on 2013-09-13 and amounted to 18625914 shares of Armstrong World Industries, Inc. for $957.56M.
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| 2015-05-27 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 3.08M 5.5074% | $56.03 | $172.79M | -15.2% | |
| 2015-02-24 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 5.48M 9.8666% | $55.40 | $303.59M | -2.54% | |
| 2014-03-10 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 3.69M 6.5051% | $53.80 | $198.52M | -3.75% | |
| 2013-11-13 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 7.26M 13.3739% | $50.67 | $368.04M | +7.94% | |
| 2013-09-13 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 18.63M 31.1248% | $51.41 | $957.56M | +3.87% | |
| 2012-12-12 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 1.2M 2.0858% | $48.96 | $58.99M | +8.6% | |
| 2012-11-14 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 8.03M 13.8101% | $48.96 | $393.29M | +6.75% | |
| 2009-08-10 | Sale | Armstrong World Industries, Inc. AWI | 10 percent owner | 14M 21.4007% | $22.31 | $312.34M | +43.55% |