| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| 03/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 772 | -- | 35,087 |
| 03/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 188 | $44.74 | 34,899 |
| 03/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 7,120 | -- | 23,170 |
| 02/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,442 | -- | 34,910 |
| 02/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 595 | $44.41 | 34,315 |
| 02/28/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,400 | -- | 14,585 |
| 02/27/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 7,760 | -- | 16,985 |
| 02/27/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 7,760 | -- | 30,290 |
| 02/03/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,498 | -- | 33,075 |
| 02/03/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 607 | $43.96 | 32,468 |
| 02/03/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,373 | -- | 4,048 |
| 02/01/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,094 | -- | 31,198 |
| 02/01/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 621 | $43.96 | 30,577 |
| 02/01/19 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,023 | -- | 6,771 |
| 02/28/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 7,200 | -- | 13,621 |
| 02/28/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 7,200 | -- | 22,530 |
| 02/04/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 171 | $44.57 | 29,104 |
| 02/03/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,454 | -- | 29,864 |
| 02/03/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 589 | $44.57 | 29,275 |
| 02/03/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,373 | -- | 6,421 |
| 02/01/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,059 | -- | 28,021 |
| 02/01/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 611 | $45.59 | 27,410 |
| 02/01/18 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,023 | -- | 8,794 |
| 03/28/17 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,840 | -- | 26,466 |
| 03/28/17 | Wilson Kirk
President, AMSS
|
President, AMSS | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 504 | $47.18 | 25,962 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.