| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| NU | MAY THOMAS J | officer, other: Chrmn of Bd, President & CEO | Jun 19 '14 | Sale | 47.09 | 208,608 | 9,822,913 | 317,398 | Jun 23 |
| NU | MAY THOMAS J | officer, other: Chrmn of Bd, President & CEO | Jun 19 '14 | Option Exercise | 25.93 | 208,608 | 5,409,205 | 526,006 | Jun 23 |
| NU | MAY THOMAS J | President, CEO & Trustee | Jan 21 '14 | Option Exercise | 26.61 | 440,832 | 11,731,012 | 736,950 | Jan 23 |
| NU | MAY THOMAS J | President, CEO & Trustee | Jan 21 '14 | Sale | 43.04 | 440,832 | 18,971,558 | 296,118 | Jan 23 |
| NU | MAY THOMAS J | President, CEO & Trustee | Mar 20 '13 | Sale | 42.73 | 186,014 | 7,947,690 | 294,286 | Mar 21 |
| NU | MAY THOMAS J | President, CEO & Trustee | Mar 19 '13 | Option Exercise | 21.14 | 262,400 | 5,547,136 | 556,686 | Mar 21 |
| NU | MAY THOMAS J | President, CEO & Trustee | Mar 19 '13 | Sale | 42.32 | 76,386 | 3,232,931 | 480,300 | Mar 21 |
| NU | MAY THOMAS J | President and CEO | Mar 05 '13 | Sale | 42.12 | 200,000 | 8,423,420 | 0 | Mar 07 |
| NU | MAY THOMAS J | President, CEO & Trustee | Oct 18 '12 | Option Exercise | 22.57 | 188,718 | 4,259,365 | 558,454 | Oct 19 |
| NU | MAY THOMAS J | President, CEO & Trustee | Oct 18 '12 | Sale | 39.52 | 188,718 | 7,458,720 | 369,736 | Oct 19 |
| NU | MAY THOMAS J | President, CEO & Trustee | Oct 17 '12 | Sale | 39.56 | 336,082 | 13,295,538 | 369,736 | Oct 19 |
| NU | MAY THOMAS J | President, CEO & Trustee | Oct 17 '12 | Option Exercise | 19.35 | 336,082 | 6,504,283 | 705,818 | Oct 19 |