Charles E Davidson

CIK 1001391 · View on SEC EDGAR ↗

Insider

First SEC filing: May 3, 2006 · Latest: May 3, 2006

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 12 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

12 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 13, 2012 GPOR S 245,000 $32.80 $8,036,000 5,336,526 Indirect -4.39% Disposed 428.8% (price as of 2026-08-19)
March 12, 2012 GPOR S 150,000 $32.43 $4,864,500 5,581,526 Indirect -2.62% Disposed 434.8% (price as of 2026-08-19)
March 9, 2012 GPOR S 370,422 $33.17 $12,286,898 5,731,526 Indirect -6.07% Disposed 422.9% (price as of 2026-08-19)
March 8, 2012 GPOR S 329,670 $32.53 $10,724,165 6,101,948 Indirect -5.13% Disposed 433.2% (price as of 2026-08-19)
March 7, 2012 GPOR S 381,968 $32.33 $12,349,025 6,431,618 Indirect -5.61% Disposed 436.5% (price as of 2026-08-19)
March 6, 2012 GPOR S 50,000 $31.23 $1,561,500 6,813,586 Indirect -0.73% Disposed 455.4% (price as of 2026-08-19)
March 5, 2012 GPOR S 59,000 $32.18 $1,898,620 6,863,586 Indirect -0.85% Disposed 439.0% (price as of 2026-08-19)
March 2, 2012 GPOR S 17,200 $33.75 $580,500 6,922,586 Indirect -0.25% Disposed 413.9% (price as of 2026-08-19)
March 1, 2012 GPOR S 459,000 $34.11 $15,656,490 6,939,786 Indirect -6.20% Disposed 408.5% (price as of 2026-08-19)
Feb. 29, 2012 GPOR S 17,000 $34.51 $586,670 7,398,786 Indirect -0.23% Disposed 402.6% (price as of 2026-08-19)
Dec. 5, 2011 GPOR S 1,150,000 $27.84 $32,016,000 7,415,786 Indirect -13.43% Disposed 523.0% (price as of 2026-08-19)
March 30, 2011 GPOR S 2,760,000 $30.56 $84,345,600 8,565,786 Indirect -24.37% Disposed 467.6% (price as of 2026-08-19)
Dec. 17, 2010 GPOR S 3,910,000 $19.40 $75,854,000 11,325,786 Indirect -25.66% Disposed 794.0% (price as of 2026-08-19)
May 22, 2007 GPOR P 700,350 $16.00 $11,205,600 15,235,785 Indirect +4.82% Acquired 984.0% (price as of 2026-08-19)
Feb. 5, 2007 GPOR P 529,000 $11.92 $6,305,680 14,535,435 Indirect +3.78% Acquired 1355.1% (price as of 2026-08-19)
May 3, 2006 GPOR S 5,631,011 $14.00 $78,834,154 0 Indirect -100.00% Disposed 1138.9% (price as of 2026-08-19)

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
Feb. 23, 2005 GPOR Common Stock Warrants Common Stock (334,169) $1.19 May 21, 2006 72,302 Disposed
Feb. 23, 2005 GPOR Common Stock Warrants Common Stock (4,815,286) $1.19 March 29, 2012 5,730 Disposed
Feb. 23, 2005 GPOR Common Stock Warrants Common Stock (167,880) $1.19 May 21, 2006 36,323 Disposed
Feb. 23, 2005 GPOR Common Stock Warrants Common Stock (1,983,840) $1.19 March 29, 2012 2,361 Disposed
Aug. 17, 2004 GPOR Common Stock Purchase Rights Common Stock (1,770,381) $1.20 Aug. 17, 2004 1,770,381 Disposed
Aug. 17, 2004 GPOR Common Stock Purchase Rights Common Stock (26,684) $1.20 Aug. 17, 2004 26,684 Disposed
Aug. 17, 2004 GPOR Common Stock Purchase Rights Common Stock (4,470,473) $1.20 Aug. 17, 2004 4,470,473 Disposed

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