Charles L Gummer
Insider
First SEC filing: Nov. 2, 2011 · Latest: Nov. 2, 2011
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 6, 2012 | MTDR | A | 4,000 | · | · | 26,500 Direct | +17.78% | Acquired | (price as of 2026-10-05) |
| April 11, 2012 | MTDR | A | 1,701 | · | · | 24,201 Direct | +7.56% | Acquired | (price as of 2026-10-05) |
| Feb. 7, 2012 | MTDR | P | 22,000 | $12.00 | $264,000 | 22,500 Direct | +4400.00% | Acquired | 341.8% (price as of 2026-10-05) |
| Oct. 31, 2011 | 28412 | F | 12,285 | $25.55 | $313,882 | 85,894 Direct | -12.51% | Disposed | |
| Feb. 16, 2011 | 28412 | S | 486 | $39.54 | $19,216 | 97,965 Direct | -0.49% | Disposed | |
| Feb. 16, 2011 | 28412 | S | 400 | $39.53 | $15,812 | 98,451 Direct | -0.40% | Disposed | |
| Feb. 16, 2011 | 28412 | S | 100 | $39.52 | $3,952 | 98,851 Direct | -0.10% | Disposed | |
| Feb. 16, 2011 | 28412 | S | 1,161 | $39.52 | $45,883 | 98,951 Direct | -1.16% | Disposed | |
| Feb. 16, 2011 | 28412 | S | 2,853 | $39.51 | $112,722 | 100,112 Direct | -2.77% | Disposed | |
| Feb. 15, 2011 | 28412 | F | 1,356 | $39.74 | $53,887 | 102,965 Direct | -1.30% | Disposed | |
| Feb. 5, 2011 | 28412 | M | 9,253 | · | · | 0 Direct | -100.00% | Disposed | |
| Feb. 5, 2011 | 28412 | D | 9,253 | $38.60 | $357,166 | 104,321 Direct | -8.15% | Disposed | |
| Feb. 5, 2011 | 28412 | M | 9,253 | · | · | 113,574 Direct | +8.87% | Acquired | |
| Jan. 25, 2011 | 28412 | A | 15,600 | · | · | 104,321 Direct | +17.58% | Acquired | |
| Jan. 7, 2011 | 28412 | A | 341 | · | · | 9,253 Direct | +3.83% | Acquired | |
| Dec. 24, 2010 | 28412 | A | 352 | · | · | 8,911 Direct | +4.11% | Acquired | |
| Dec. 10, 2010 | 28412 | A | 363 | · | · | 8,559 Direct | +4.43% | Acquired | |
| Nov. 26, 2010 | 28412 | A | 408 | · | · | 8,195 Direct | +5.24% | Acquired | |
| Nov. 12, 2010 | 28412 | A | 399 | · | · | 7,787 Direct | +5.40% | Acquired | |
| Oct. 29, 2010 | 28412 | A | 416 | · | · | 7,388 Direct | +5.97% | Acquired | |
| Oct. 15, 2010 | 28412 | A | 390 | · | · | 6,972 Direct | +5.93% | Acquired | |
| Oct. 1, 2010 | 28412 | A | 401 | · | · | 6,582 Direct | +6.49% | Acquired | |
| Sept. 17, 2010 | 28412 | A | 404 | · | · | 6,181 Direct | +6.99% | Acquired | |
| Sept. 3, 2010 | 28412 | A | 403 | · | · | 5,777 Direct | +7.50% | Acquired | |
| Aug. 20, 2010 | 28412 | A | 421 | · | · | 5,374 Direct | +8.50% | Acquired | |
| Aug. 6, 2010 | 28412 | A | 401 | · | · | 4,953 Direct | +8.81% | Acquired | |
| July 27, 2010 | 28412 | A | 18,500 | · | · | 18,500 Direct | · | Acquired | |
| July 27, 2010 | 28412 | A | 9,500 | · | · | 88,636 Direct | +12.00% | Acquired | |
| July 23, 2010 | 28412 | A | 395 | · | · | 4,552 Direct | +9.50% | Acquired | |
| July 9, 2010 | 28412 | A | 380 | · | · | 4,157 Direct | +10.06% | Acquired | |
| June 25, 2010 | 28412 | A | 387 | · | · | 3,777 Direct | +11.42% | Acquired | |
| June 11, 2010 | 28412 | A | 398 | · | · | 3,390 Direct | +13.30% | Acquired | |
| May 28, 2010 | 28412 | A | 391 | · | · | 2,992 Direct | +15.03% | Acquired | |
| May 14, 2010 | 28412 | A | 353 | · | · | 2,601 Direct | +15.70% | Acquired | |
| April 30, 2010 | 28412 | A | 355 | · | · | 2,248 Direct | +18.75% | Acquired | |
| April 21, 2010 | 28412 | F | 1,058 | $43.40 | $45,917 | 79,113 Direct | -1.32% | Disposed | |
| April 16, 2010 | 28412 | A | 365 | · | · | 1,894 Direct | +23.87% | Acquired | |
| April 2, 2010 | 28412 | A | 392 | · | · | 1,529 Direct | +34.48% | Acquired | |
| March 19, 2010 | 28412 | A | 383 | · | · | 1,136 Direct | +50.86% | Acquired | |
| March 5, 2010 | 28412 | A | 370 | · | · | 753 Direct | +96.61% | Acquired | |
| Feb. 22, 2010 | 28412 | S | 500 | $36.35 | $18,175 | 80,143 Direct | -0.62% | Disposed | |
| Feb. 22, 2010 | 28412 | S | 2,000 | $36.35 | $72,700 | 80,643 Direct | -2.42% | Disposed | |
| Feb. 22, 2010 | 28412 | S | 1,400 | $36.15 | $50,610 | 82,643 Direct | -1.67% | Disposed | |
| Feb. 22, 2010 | 28412 | S | 1,100 | $36.15 | $39,765 | 84,043 Direct | -1.29% | Disposed | |
| Feb. 19, 2010 | 28412 | A | 383 | · | · | 383 Direct | · | Acquired | |
| Nov. 17, 2009 | 28412 | A | 6,450 | $28.76 | $185,502 | 85,108 Direct | +8.20% | Acquired | |
| April 16, 2009 | 28412 | F | 1,058 | $20.32 | $21,499 | 78,572 Direct | -1.33% | Disposed | |
| Feb. 9, 2009 | 28412 | S | 300 | $19.18 | $5,754 | 79,573 Direct | -0.38% | Disposed | |
| Jan. 27, 2009 | 28412 | A | 23,300 | · | · | 23,300 Direct | · | Acquired | |
| Jan. 27, 2009 | 28412 | A | 12,100 | · | · | 79,873 Direct | +17.85% | Acquired | |
| Nov. 5, 2008 | 28412 | G | 100 | · | · | 67,445 Direct | -0.15% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 600 | $28.73 | $17,238 | 67,545 Direct | -0.88% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 400 | $28.72 | $11,488 | 68,145 Direct | -0.58% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 700 | $28.71 | $20,097 | 68,545 Direct | -1.01% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 2,300 | $28.70 | $66,010 | 69,245 Direct | -3.21% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 3,000 | $28.69 | $86,070 | 71,545 Direct | -4.02% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 3,900 | $28.68 | $111,852 | 74,545 Direct | -4.97% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 2,400 | $28.67 | $68,808 | 78,445 Direct | -2.97% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 2,900 | $28.66 | $83,114 | 80,845 Direct | -3.46% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 1,600 | $28.65 | $45,840 | 83,745 Direct | -1.87% | Disposed | |
| Nov. 4, 2008 | 28412 | S | 2,200 | $28.64 | $63,008 | 85,345 Direct | -2.51% | Disposed | |
| Jan. 22, 2008 | 28412 | A | 25,000 | · | · | 25,000 Direct | · | Acquired | |
| Jan. 22, 2008 | 28412 | A | 6,400 | · | · | 83,521 Direct | +8.30% | Acquired | |
| May 23, 2007 | 28412 | G | 300 | · | · | 76,403 Direct | -0.39% | Disposed | |
| May 18, 2007 | 28412 | S | 1,000 | $63.49 | $63,490 | 76,703 Direct | -1.29% | Disposed | |
| May 18, 2007 | 28412 | S | 1,600 | $63.48 | $101,568 | 77,703 Direct | -2.02% | Disposed | |
| May 18, 2007 | 28412 | S | 700 | $63.47 | $44,429 | 79,303 Direct | -0.87% | Disposed | |
| May 18, 2007 | 28412 | S | 700 | $63.46 | $44,422 | 80,003 Direct | -0.87% | Disposed | |
| May 18, 2007 | 28412 | S | 800 | $63.45 | $50,760 | 80,703 Direct | -0.98% | Disposed | |
| May 18, 2007 | 28412 | S | 200 | $63.44 | $12,688 | 81,503 Direct | -0.24% | Disposed | |
| April 19, 2007 | 28412 | M | 18,000 | · | · | 0 Direct | -100.00% | Disposed | |
| April 19, 2007 | 28412 | S | 200 | $62.00 | $12,400 | 84,607 Direct | -0.24% | Disposed | |
| April 19, 2007 | 28412 | S | 300 | $62.01 | $18,603 | 84,807 Direct | -0.35% | Disposed | |
| April 19, 2007 | 28412 | S | 900 | $62.02 | $55,818 | 85,107 Direct | -1.05% | Disposed | |
| April 19, 2007 | 28412 | S | 400 | $62.03 | $24,812 | 86,007 Direct | -0.46% | Disposed | |
| April 19, 2007 | 28412 | S | 800 | $62.04 | $49,632 | 86,407 Direct | -0.92% | Disposed | |
| April 19, 2007 | 28412 | S | 457 | $62.05 | $28,357 | 87,207 Direct | -0.52% | Disposed | |
| April 19, 2007 | 28412 | S | 343 | $62.06 | $21,287 | 87,664 Direct | -0.39% | Disposed | |
| April 19, 2007 | 28412 | S | 700 | $62.07 | $43,449 | 88,007 Direct | -0.79% | Disposed | |
| April 19, 2007 | 28412 | S | 500 | $62.08 | $31,040 | 88,707 Direct | -0.56% | Disposed | |
| April 19, 2007 | 28412 | S | 600 | $62.09 | $37,254 | 89,207 Direct | -0.67% | Disposed | |
| April 19, 2007 | 28412 | S | 900 | $62.10 | $55,890 | 89,807 Direct | -0.99% | Disposed | |
| April 19, 2007 | 28412 | S | 1,800 | $62.11 | $111,798 | 90,707 Direct | -1.95% | Disposed | |
| April 19, 2007 | 28412 | S | 2,200 | $62.12 | $136,664 | 92,507 Direct | -2.32% | Disposed | |
| April 19, 2007 | 28412 | S | 2,000 | $62.13 | $124,260 | 94,707 Direct | -2.07% | Disposed | |
| April 19, 2007 | 28412 | S | 1,400 | $62.14 | $86,996 | 96,707 Direct | -1.43% | Disposed | |
| April 19, 2007 | 28412 | S | 500 | $62.15 | $31,075 | 98,107 Direct | -0.51% | Disposed | |
| April 19, 2007 | 28412 | S | 100 | $62.16 | $6,216 | 98,607 Direct | -0.10% | Disposed | |
| April 19, 2007 | 28412 | S | 100 | $62.16 | $6,216 | 98,707 Direct | -0.10% | Disposed | |
| April 19, 2007 | 28412 | S | 767 | $62.17 | $47,684 | 98,807 Direct | -0.77% | Disposed | |
| April 19, 2007 | 28412 | S | 1,333 | $62.18 | $82,886 | 99,574 Direct | -1.32% | Disposed | |
| April 19, 2007 | 28412 | S | 700 | $62.19 | $43,533 | 100,907 Direct | -0.69% | Disposed | |
| April 19, 2007 | 28412 | S | 100 | $62.25 | $6,225 | 101,607 Direct | -0.10% | Disposed | |
| April 19, 2007 | 28412 | S | 500 | $62.26 | $31,130 | 101,707 Direct | -0.49% | Disposed | |
| April 19, 2007 | 28412 | S | 400 | $62.27 | $24,908 | 102,207 Direct | -0.39% | Disposed | |
| April 19, 2007 | 28412 | M | 18,000 | $40.25 | $724,500 | 102,607 Direct | +21.27% | Acquired | |
| April 17, 2007 | 28412 | J | 1,323 | $62.56 | $82,767 | 84,607 Direct | -1.54% | Disposed | |
| Jan. 23, 2007 | 28412 | A | 25,000 | · | · | 25,000 Direct | · | Acquired | |
| Jan. 23, 2007 | 28412 | A | 6,000 | · | · | 85,672 Direct | +7.53% | Acquired | |
| April 28, 2006 | 28412 | J | 926 | $56.87 | $52,662 | 78,993 Direct | -1.16% | Disposed |
Showing latest 100 of 144 transactions
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. 5, 2011 | 28412 | Phantom Stock Units [F4] | Common Stock | · | Feb. 5, 2011 | 9,253 | Disposed |
| Jan. 7, 2011 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 341 | Acquired |
| Dec. 24, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 352 | Acquired |
| Dec. 10, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 363 | Acquired |
| Nov. 26, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 408 | Acquired |
| Nov. 12, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 399 | Acquired |
| Oct. 29, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 416 | Acquired |
| Oct. 15, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 390 | Acquired |
| Oct. 1, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 401 | Acquired |
| Sept. 17, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 404 | Acquired |
| Sept. 3, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 403 | Acquired |
| Aug. 20, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 421 | Acquired |
| Aug. 6, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 401 | Acquired |
| July 27, 2010 | 28412 | Employee Stock Option (right to buy) | Common Stock | $39.16 | July 27, 2020 | 18,500 | Acquired |
| July 23, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 395 | Acquired |
| July 9, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 380 | Acquired |
| June 25, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 387 | Acquired |
| June 11, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 398 | Acquired |
| May 28, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 391 | Acquired |
| May 14, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 353 | Acquired |
| April 30, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 355 | Acquired |
| April 16, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 365 | Acquired |
| April 2, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 392 | Acquired |
| March 19, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 383 | Acquired |
| March 5, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 370 | Acquired |
| Feb. 19, 2010 | 28412 | Phantom Stock Units [F3] | Common Stock | · | Feb. 5, 2011 | 383 | Acquired |
| Jan. 27, 2009 | 28412 | Employee Stock Option (right to buy) | Common Stock | $17.32 | Jan. 27, 2019 | 23,300 | Acquired |
| Jan. 22, 2008 | 28412 | Employee Stock Option (right to buy) | Common Stock | $37.45 | Jan. 22, 2018 | 25,000 | Acquired |
| April 19, 2007 | 28412 | Employee Stock Option (right to buy) | Common Stock | $40.25 | April 20, 2007 | 18,000 | Disposed |
| Jan. 23, 2007 | 28412 | Employee Stock Option (right to buy) | Common Stock | $58.98 | Jan. 23, 2017 | 25,000 | Acquired |
| March 6, 2006 | 28412 | Employee Stock Option (right to buy) | Common Stock | $25.42 | April 14, 2006 | 18,000 | Acquired |
| Feb. 15, 2006 | 28412 | Employee Stock Option (right to buy) | Common Stock | $56.47 | Feb. 15, 2016 | 20,500 | Acquired |
| April 21, 2005 | 28412 | Employee Stock Option (right to buy) | Common Stock | $54.99 | April 21, 2015 | 25,000 | Acquired |
| Feb. 23, 2005 | 28412 | Employee Stock Option (right to buy) | Common Stock | $18.59 | April 18, 2005 | 6,500 | Disposed |
| Nov. 12, 2004 | 28412 | Employee Stock Option (right to buy) | Common Stock | $18.59 | April 18, 2005 | 10,000 | Disposed |
| April 16, 2004 | 28412 | Employee Stock Option (right to buy) | Common Stock | $52.50 | April 16, 2014 | 25,000 | Acquired |
| Feb. 17, 2004 | 28412 | Employee Stock Option (right to buy) | Common Stock | $18.00 | April 19, 2004 | 4,250 | Disposed |
| Feb. 12, 2004 | 28412 | Employee Stock Option (right to buy) | Common Stock | $18.00 | April 19, 2004 | 5,000 | Disposed |
| Jan. 23, 2004 | 28412 | Employee Stock Option (right to buy) | Common Stock | $18.00 | April 19, 2004 | 5,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 1, 2012 | MTDR | Class A Common Stock | 500 | Direct |