Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 21 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

21 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 4, 2019 NGS S 1,600 $14.98 $23,968 22,000 Direct -6.78% Disposed 124.2% (price as of 2026-10-05)
June 4, 2019 NGS S 1,756 $15.20 $26,691 23,600 Direct -6.93% Disposed 120.9% (price as of 2026-10-05)
March 13, 2018 NGS S 1,853 $27.35 $50,680 15,500 Direct -10.68% Disposed 22.8% (price as of 2026-10-05)
March 13, 2018 NGS S 647 $27.11 $17,540 17,353 Direct -3.59% Disposed 23.9% (price as of 2026-10-05)
June 20, 2017 NGS S 2,540 $23.60 $59,944 18,000 Direct -12.37% Disposed 42.3% (price as of 2026-10-05)
June 23, 2016 NGS S 2,500 $24.35 $60,875 16,548 Direct -13.12% Disposed 37.9% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 13, 2024 NGS Restricted Stock Units Common Stock (5,620) · · 5,620 Acquired
May 9, 2024 NGS Restricted Stock Units Common Stock (9,470) · · 9,470 Disposed
May 9, 2023 NGS Restricted Stock Unit Common Stock (9,470) · · 9,470 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Dec. 20, 2011 NGS Common Stock 0 Direct