| Filed On | Filing |
|---|---|
| 15 May 2023 |
Form 4/A: Schroeder Scott C, Executive Vice President & CFO
Gave 93,666 shares as a gift |
| 28 Jan 2022 |
Form 4/A: Helmerich Hans, Director
Received 147,396 shares as a grant or award |
| 28 Jan 2022 |
Form 4/A: Bell Stephen P, EVP - Business Development
Received 436,327 shares as a grant or award |
| 08 Oct 2021 |
Form 4/A: Clason Christopher, SVP and Chief HR Officer
Received 288,830 shares as a grant or award |
| 08 Oct 2021 |
Form 4/A: Roemer Todd M, Vice Pres & CAO
Received 93,308 shares as a grant or award |
| 04 Aug 2021 |
Form 4/A: Lindeman Steven W, Sr Vice Pres, EHS and Eng
Sold 35,500 shares ($687K) |
| 19 Apr 2016 |
Form 4/A: Ables Dorothy M, Director
Received 815 shares as a grant or award ($18.8K) |
| 19 Apr 2016 |
Form 4/A: Ralls W Matt, Director
Received 977 shares as a grant or award ($22.5K) |
| 19 Apr 2016 |
Form 4/A: Ables Dorothy M, Director
Received 815 shares as a grant or award ($18.8K) |
| 21 Aug 2015 |
Form 4/A: Keiser Robert L, Director
Bought 450 shares ($11.4K) |
| 07 Jan 2014 |
Form 4/A: Lindeman Steven W, Vice Pres, Engineering & Tech
Gave 600 shares as a gift |
| 07 May 2012 |
Form 4/A: Lindeman Steven W, Vice Pres, Engineering & Tech
Sold 9,987 shares ($347K) |
| 01 Mar 2012 |
Form 4/A: Shearer Deidre L, Corp Sec & Managing Counsel
Holds 3,000 shares of Common Stock |
| 21 Feb 2012 |
Form 4/A: Roemer Todd M, Controller
Gave up 409 shares to cover exercise price or tax ($16.6K) |
| 25 Jan 2012 |
Form 4/A: Cunningham George Kevin, Vice Pres. & General Counsel
Holds 1,365.772 shares of Common Stock |
| 05 Jan 2012 |
Form 4/A: Machesney Lisa A, VP, Mang. Counsel & Corp. Sec.
Holds 300 shares of Common Stock |
| 10 Feb 2011 |
Form 4/A: Dinges Dan O, Director
Received 28,800 shares by exercise or conversion ($1.09M) · Gave up 7,970 shares to cover exercise price or tax ($301K) |
| 05 Jan 2011 |
Form 4/A: Keiser Robert L, Director
Received 15,000 shares by exercise or conversion ($563K) · Sold 10,945 shares ($411K) |
| 22 Feb 2008 |
Form 4/A: Walen Michael B, SVP, Chief Operating Officer
Granted 15,980 Performance Shares · Granted 19,925 Stock Appreciation right ($966K) |
| 22 Feb 2008 |
Form 4/A: Walen Michael B, SVP, Chief Operating Officer
Acquired 15,980 Performance Shares (Option Exercise/Conversion) · Granted 19,925 Stock Appreciation Right ($966K) |
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