| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| Feb 07, 2011 | Bozman Rusty A
|
SVP - Corporate Development | Form 4 | Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | 7,611 | -- | 21,089 |
| Aug 26, 2004 | RAY JERRY M
|
SVP | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 7,744 | $21.85 | 12,054 |
| Aug 26, 2004 | RAY JERRY M
|
SVP | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 7,744 | -- | 29,778 |
| Jun 28, 2004 | NEMOURS FOUNDATION
|
Ten Percent Owner | Form 4 | Open market or private sale of non-derivative or derivative security | 7,750 | $39.51 | 1,459,258 |
| Mar 15, 2018 | Gonzalez Jorge Luis
|
Director, President - CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 7,764 | $19.32 | 10,468 |
| Feb 24, 2004 | TWOMEY KEVIN M
|
President, COO & CFO | Form 4 | Open market or private sale of non-derivative or derivative security | 7,800 | $39.80 | 396,390 |
| Feb 09, 2007 | Greene William Britton
|
Chief Operating Officer | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 8,000 | $29.00 | 68,893 |
| Feb 09, 2007 | Greene William Britton
|
Chief Operating Officer | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 8,000 | -- | -- |
| Dec 22, 2009 | CONNOLLY JANNA L
|
Chief Accounting Officer | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 8,002 | $16.69 | 31,002 |
| Dec 22, 2009 | CONNOLLY JANNA L
|
Chief Accounting Officer | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 8,002 | -- | -- |
For recent transactions, including derivative transactions, see our Section 16 SEC filingspage.