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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| DLB | YEAMAN KEVIN J | President and CEO | Dec 17 '25 | Sale | 67.24 | 6,751 | 453,928 | 98,377 | Dec 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 16 '25 | Sale | 66.74 | 26,766 | 1,786,310 | 105,128 | Dec 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 15 '25 | Option Exercise | 0.00 | 35,266 | 0 | 202,587 | Dec 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 09 '25 | Option Exercise | 55.05 | 68,734 | 3,783,807 | 132,744 | Dec 11 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 09 '25 | Sale | 67.08 | 34,367 | 2,305,493 | 98,377 | Dec 11 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 24 '25 | Option Exercise | 51.59 | 73,398 | 3,786,510 | 151,424 | Nov 26 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 24 '25 | Sale | 66.91 | 36,699 | 2,455,405 | 114,725 | Nov 26 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 14 '25 | Option Exercise | 45.50 | 50,000 | 2,275,000 | 139,725 | Oct 16 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 14 '25 | Sale | 68.87 | 25,000 | 1,721,842 | 114,725 | Oct 16 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Sep 16 '25 | Sale | 71.66 | 25,000 | 1,791,490 | 114,725 | Sep 18 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Sep 16 '25 | Option Exercise | 45.50 | 50,000 | 2,275,000 | 139,725 | Sep 18 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Aug 12 '25 | Sale | 72.31 | 25,000 | 1,807,828 | 114,725 | Aug 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Aug 12 '25 | Option Exercise | 45.50 | 50,000 | 2,275,000 | 139,725 | Aug 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 16 '25 | Option Exercise | 64.60 | 4,982 | 321,838 | 117,216 | Jul 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 16 '25 | Sale | 75.00 | 2,491 | 186,825 | 114,725 | Jul 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 15 '25 | Sale | 74.82 | 39,875 | 2,983,290 | 114,725 | Jul 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 15 '25 | Option Exercise | 52.63 | 79,750 | 4,196,850 | 154,600 | Jul 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 24 '25 | Sale | 74.02 | 25,000 | 1,850,530 | 114,725 | Jun 26 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 24 '25 | Option Exercise | 45.50 | 50,000 | 2,275,000 | 139,725 | Jun 26 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 10 '25 | Option Exercise | 50.42 | 67,366 | 3,396,844 | 160,615 | Jun 12 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 10 '25 | Sale | 76.22 | 33,683 | 2,567,481 | 114,725 | Jun 12 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 16 '24 | Option Exercise | 0.00 | 30,954 | 0 | 182,543 | Dec 18 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 26 '24 | Option Exercise | 62.32 | 15,776 | 983,160 | 91,609 | Nov 27 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 26 '24 | Sale | 80.19 | 7,888 | 632,539 | 83,721 | Nov 27 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 25 '24 | Sale | 80.54 | 50,000 | 4,026,966 | 83,721 | Nov 27 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 25 '24 | Option Exercise | 62.32 | 100,000 | 6,232,000 | 133,721 | Nov 27 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 15 '24 | Option Exercise | 62.32 | 57,024 | 3,553,736 | 112,233 | Oct 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 15 '24 | Sale | 74.12 | 28,512 | 2,113,383 | 83,721 | Oct 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 17 '24 | Buy | 78.15 | 3 | 200 | 3 | Jun 25 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jan 17 '24 | Sale | 83.51 | 9,030 | 754,083 | 83,721 | Jan 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jan 17 '24 | Option Exercise | 45.43 | 18,060 | 820,490 | 185,615 | Jan 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 15 '23 | Option Exercise | 0.00 | 34,404 | 0 | 174,804 | Dec 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 12 '23 | Option Exercise | 42.98 | 36,120 | 1,552,438 | 69,939 | Dec 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 12 '23 | Sale | 89.17 | 18,060 | 1,610,435 | 51,879 | Dec 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 21 '23 | Option Exercise | 42.98 | 90,300 | 3,881,094 | 97,029 | Nov 24 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Nov 21 '23 | Sale | 84.80 | 45,150 | 3,828,578 | 51,879 | Nov 24 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 17 '23 | Sale | 82.32 | 9,030 | 743,359 | 51,879 | Oct 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Oct 17 '23 | Option Exercise | 42.98 | 18,060 | 776,218 | 63,456 | Oct 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Sep 12 '23 | Option Exercise | 42.98 | 36,120 | 1,552,438 | 72,486 | Sep 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Sep 12 '23 | Sale | 82.62 | 18,060 | 1,492,120 | 51,879 | Sep 14 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 13 '23 | Option Exercise | 42.98 | 54,180 | 2,328,656 | 90,546 | Jul 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 13 '23 | Sale | 90.00 | 27,090 | 2,438,100 | 51,879 | Jul 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 11 '23 | Option Exercise | 42.98 | 36,120 | 1,552,438 | 117,636 | Jul 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jul 11 '23 | Sale | 87.83 | 18,060 | 1,586,295 | 51,879 | Jul 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 13 '23 | Sale | 84.83 | 27,090 | 2,298,085 | 51,879 | Jun 15 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jun 13 '23 | Option Exercise | 42.98 | 54,180 | 2,328,656 | 135,696 | Jun 15 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | May 16 '23 | Sale | 83.65 | 9,030 | 755,351 | 51,879 | May 18 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | May 16 '23 | Option Exercise | 42.98 | 18,060 | 776,218 | 162,786 | May 18 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Apr 11 '23 | Option Exercise | 45.50 | 61,558 | 2,800,890 | 82,658 | Apr 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Apr 11 '23 | Sale | 84.44 | 30,779 | 2,598,831 | 51,879 | Apr 13 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Mar 14 '23 | Option Exercise | 45.50 | 61,560 | 2,800,980 | 82,659 | Mar 16 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Mar 14 '23 | Sale | 81.11 | 30,780 | 2,496,656 | 51,879 | Mar 16 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Feb 14 '23 | Option Exercise | 45.50 | 61,560 | 2,800,980 | 82,659 | Feb 15 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Feb 14 '23 | Sale | 83.49 | 30,780 | 2,569,779 | 51,879 | Feb 15 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Dec 16 '22 | Option Exercise | 0.00 | 34,416 | 0 | 148,964 | Dec 19 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Aug 16 '22 | Sale | 80.00 | 16,688 | 1,335,040 | 21,741 | Aug 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Aug 16 '22 | Option Exercise | 0.00 | 16,688 | 0 | 171,816 | Aug 17 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jan 11 '22 | Option Exercise | 42.98 | 58,906 | 2,531,780 | 188,504 | Jan 12 12:00 AM |
| DLB | YEAMAN KEVIN J | President and CEO | Jan 11 '22 | Sale | 93.10 | 34,621 | 3,223,173 | 21,741 | Jan 12 12:00 AM |