$NGS 4/A SEC Filings

Filed On	Filing
03 Sep 2026	Form 4/A: Tringali Donald J, Director Holds 5,965 shares of Common Stock
17 Jun 2025	Form 4/A: Hodges Georganne, Director Holds 8,838 shares of Common Stock
15 Nov 2024	Form 4/A: Taylor Stephen Charles, Director Holds 551,558 shares of Common Stock
13 Nov 2024	Form 4/A: Taylor Stephen Charles, Director Sold 4,690 shares ($104K)
13 May 2024	Form 4/A: Bradshaw David L, Director Received 4,735 shares as a grant or award
15 May 2023	Form 4/A: Taylor Stephen Charles, Director Gave up 23,134 shares to cover exercise price or tax ($241K)
03 May 2023	Form 4/A: Taylor Stephen Charles, Director Gave up 11,158 shares to cover exercise price or tax ($115K) · Received 3,138 shares as a grant or award · Exercised 3,138 Restricted Stock Units
02 Apr 2021	Form 4/A: Taylor Stephen Charles, Director Holds 564,665 shares of Common Stock
02 Apr 2021	Form 4/A: Taylor Stephen Charles, Director Received 109,212 shares as a grant or award ($973K)
26 Jan 2018	Form 4/A: Hazlett James R, VP -- Technical Services Holds 45,282 shares of Common Stock
26 Jan 2018	Form 4/A: Hazlett James R, VP -- Technical Services Sold 1,349 shares ($39.1K)
15 Mar 2017	Form 4/A: Taylor Stephen Charles, Director Received 52,848 shares as a grant or award ($1.51M) · Granted 17,616 Restricted Stock Units
09 Feb 2016	Form 4/A: Taylor Stephen Charles, Director Received 75,915 shares as a grant or award ($1.68M)
02 Feb 2012	Form 4/A: Lawrence G Larry, Chief Financial Officer Received 10,000 shares as a grant or award ($149K)
02 Feb 2012	Form 4/A: Hazlett James R, Vice President-Technical Svcs. Received 10,000 shares as a grant or award ($149K)
16 Dec 2010	Form 4/A: Wait Earl R, VP/Accounting; Treasurer Sold 13,640 shares ($241K)
23 Mar 2007	Form 4/A: Yadon Richard L, Director Granted 2,500 Nonqualified Stock Options (right to buy)
23 Mar 2007	Form 4/A: Baker Alan A, Director Granted 2,500 Nonqualified Stock Option (right to buy)
23 Mar 2007	Form 4/A: Strasheim Gene A, Director Granted 2,500 Nonqualified Stock Option (right to buy)
23 Mar 2007	Form 4/A: Hughes William F Jr, Director Granted 2,500 Noqualified Stock Option (right to buy)

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