Richard L Yadon
CIK 1219474 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 3, 2003 · Latest: Feb. 13, 2004
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 28 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
28 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 9, 2008 | NGS | S | 20,000 | $30.00 | $600,000 | 164,817 Direct | -10.82% | Disposed | 19.8% (price as of 2026-08-21) |
| Sept. 12, 2005 | NGS | S | 6,000 | $23.50 | $141,000 | 254,500 Direct | -2.30% | Disposed | 53.0% (price as of 2026-08-21) |
| Sept. 12, 2005 | NGS | S | 300 | $23.25 | $6,975 | 260,500 Direct | -0.12% | Disposed | 54.6% (price as of 2026-08-21) |
| Sept. 12, 2005 | NGS | S | 1,100 | $23.56 | $25,916 | 260,800 Direct | -0.42% | Disposed | 52.6% (price as of 2026-08-21) |
| Sept. 12, 2005 | NGS | S | 1,600 | $23.40 | $37,440 | 261,900 Direct | -0.61% | Disposed | 53.6% (price as of 2026-08-21) |
| Sept. 12, 2005 | NGS | S | 1,000 | $23.23 | $23,230 | 263,500 Direct | -0.38% | Disposed | 54.8% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 600 | $19.83 | $11,898 | 264,500 Direct | -0.23% | Disposed | 81.3% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 400 | $19.80 | $7,920 | 265,100 Direct | -0.15% | Disposed | 81.6% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 500 | $19.75 | $9,875 | 265,500 Direct | -0.19% | Disposed | 82.0% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 1,000 | $19.73 | $19,730 | 266,000 Direct | -0.37% | Disposed | 82.2% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 1,500 | $19.70 | $29,550 | 267,000 Direct | -0.56% | Disposed | 82.5% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 1,000 | $19.55 | $19,550 | 268,500 Direct | -0.37% | Disposed | 83.9% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 700 | $19.45 | $13,615 | 269,500 Direct | -0.26% | Disposed | 84.8% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 600 | $19.44 | $11,664 | 270,200 Direct | -0.22% | Disposed | 84.9% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 900 | $19.43 | $17,487 | 270,800 Direct | -0.33% | Disposed | 85.0% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 700 | $19.40 | $13,580 | 271,700 Direct | -0.26% | Disposed | 85.3% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 100 | $19.30 | $1,930 | 272,400 Direct | -0.04% | Disposed | 86.3% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 1,000 | $19.25 | $19,250 | 272,500 Direct | -0.37% | Disposed | 86.8% (price as of 2026-08-21) |
| Aug. 31, 2005 | NGS | S | 6,000 | $19.12 | $114,720 | 273,500 Direct | -2.15% | Disposed | 88.0% (price as of 2026-08-21) |
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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 6, 2011 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (1,250) | $16.74 | March 22, 2020 | 1,250 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) [F2] | Common Stock (3,750) | $16.74 | March 22, 2020 | 3,750 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (2,500) | $8.00 | March 18, 2019 | 2,500 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (2,500) | $13.90 | Jan. 1, 2017 | 2,500 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (2,500) | $16.96 | Dec. 30, 2015 | 2,500 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (2,500) | $9.34 | Jan. 5, 2015 | 2,500 | Disposed |
| Dec. 14, 2010 | NGS | Nonqualified Stock Option (right to buy) | Common Stock (2,500) | $5.55 | Dec. 31, 2013 | 2,500 | Disposed |
| March 23, 2010 | NGS | Nonqualified Stock Option (right to buy) [F2] | Common Stock (5,000) | $16.74 | March 22, 2020 | 5,000 | Acquired |
| March 18, 2009 | NGS | Nonqualified Stock Option (right to buy) [F1] | Common Stock (2,500) | $8.00 | March 18, 2019 | 2,500 | Acquired |
| March 18, 2008 | NGS | Nonqualified Stock Option (right to buy) [F1] | Common Stock (2,500) | $20.48 | March 18, 2018 | 2,500 | Acquired |
| Dec. 31, 2007 | NGS | Nonqualified Stock Option (right to buy) [F1] | Common Stock (2,500) | $19.61 | Dec. 31, 2017 | 2,500 | Acquired |
| Dec. 29, 2006 | NGS | Nonqualified Stock Options (right to buy) [F1] | Common Stock (2,500) | $13.90 | Jan. 1, 2017 | 2,500 | Acquired |
| Dec. 29, 2006 | NGS | Nonqualified Stock Options (right to buy) [F1] | Common Stock (2,500) | $13.90 | Dec. 29, 2016 | 2,500 | Acquired |
| Nov. 30, 2006 | NGS | Stock Purchase Warrant (right to buy) | Common Stock (5,318) | $3.25 | April 23, 2007 | 5,318 | Disposed |
| Nov. 30, 2006 | NGS | Stock Purchase Warrant (right to buy) | Common Stock (9,365) | $2.50 | Dec. 31, 2006 | 9,365 | Disposed |
| Dec. 30, 2005 | NGS | Nonqualified Stock Option (right to buy) [F1] | Common Stock (2,500) | $16.96 | Dec. 30, 2015 | 2,500 | Acquired |
| Jan. 5, 2005 | NGS | Nonqualified Stock Option (right to buy) [F1] | Common Stock (2,500) | $9.34 | Jan. 5, 2015 | 2,500 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.