Martin J Whitman
Insider
First SEC filing: Feb. 20, 2007 · Latest: Feb. 20, 2007
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 31, 2011 | NBR | A | 3,127 | $30.38 | $94,998 | 3,127 Direct | · | Acquired | -94.7% (price as of 2026-10-06) |
| Feb. 18, 2011 | NBR | A | 12,000 | · | · | 379,593 Direct | +3.26% | Acquired | (price as of 2026-10-06) |
| Feb. 18, 2011 | NBR | A | 12,000 | · | · | 11,469,593 Direct | +0.10% | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2010 | NBR | A | 4,208 | $23.46 | $98,720 | 4,208 Direct | · | Acquired | -93.1% (price as of 2026-10-06) |
| Dec. 3, 2010 | NBR | M | 45,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Dec. 3, 2010 | NBR | F | 43,445 | $23.59 | $1,024,868 | 11,457,593 Direct | -0.38% | Disposed | -93.1% (price as of 2026-10-06) |
| Dec. 3, 2010 | NBR | M | 45,000 | $22.78 | $1,025,100 | 11,501,038 Direct | +0.39% | Acquired | -92.9% (price as of 2026-10-06) |
| Sept. 30, 2010 | NBR | A | 6,019 | $18.06 | $108,703 | 6,019 Direct | · | Acquired | -91.0% (price as of 2026-10-06) |
| June 30, 2010 | NBR | A | 5,884 | $17.62 | $103,676 | 5,884 Direct | · | Acquired | -90.8% (price as of 2026-10-06) |
| April 5, 2010 | NBR | A | 4,841 | $20.64 | $99,918 | 4,841 Direct | · | Acquired | -92.1% (price as of 2026-10-06) |
| Feb. 18, 2010 | NBR | A | 12,000 | · | · | 366,038 Direct | +3.39% | Acquired | (price as of 2026-10-06) |
| Dec. 2, 2009 | NBR | M | 35,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Dec. 2, 2009 | NBR | M | 35,000 | $12.38 | $433,300 | 354,038 Direct | +10.97% | Acquired | -86.9% (price as of 2026-10-06) |
| Feb. 20, 2009 | NBR | A | 12,000 | · | · | 319,038 Direct | +3.91% | Acquired | (price as of 2026-10-06) |
| Feb. 22, 2008 | NBR | A | 12,000 | · | · | 307,038 Direct | +4.07% | Acquired | (price as of 2026-10-06) |
| Jan. 10, 2008 | NBR | M | 10,000 | $12.47 | $124,700 | 0 Direct | -100.00% | Disposed | -87.0% (price as of 2026-10-06) |
| Jan. 10, 2008 | NBR | M | 25,000 | $6.31 | $157,750 | 0 Direct | -100.00% | Disposed | -74.3% (price as of 2026-10-06) |
| Jan. 10, 2008 | NBR | M | 10,000 | $12.47 | $124,700 | 295,038 Direct | +3.51% | Acquired | -87.0% (price as of 2026-10-06) |
| Jan. 10, 2008 | NBR | M | 25,000 | $6.31 | $157,750 | 285,038 Direct | +9.61% | Acquired | -74.3% (price as of 2026-10-06) |
| Feb. 22, 2007 | NBR | A | 12,000 | · | · | 260,038 Direct | +4.84% | Acquired | (price as of 2026-10-06) |
| Feb. 16, 2007 | NBR | M | 10,000 | $8.12 | $81,200 | 0 Direct | -100.00% | Disposed | -80.0% (price as of 2026-10-06) |
| Feb. 16, 2007 | NBR | M | 10,000 | $8.12 | $81,200 | 248,038 Direct | +4.20% | Acquired | -80.0% (price as of 2026-10-06) |
| March 10, 2006 | NBR | A | 7,500 | $63.90 | $479,250 | 119,019 Direct | +6.73% | Acquired | -94.9% (price as of 2026-10-06) |
| Feb. 21, 2006 | NBR | M | 5,000 | $13.38 | $66,900 | 0 Direct | -100.00% | Disposed | -75.7% (price as of 2026-10-06) |
| Feb. 21, 2006 | NBR | M | 5,000 | $13.38 | $66,900 | 141,566 Direct | +3.66% | Acquired | -75.7% (price as of 2026-10-06) |
| June 7, 2005 | NBR | A | 10,000 | $56.87 | $568,700 | 136,566 Direct | +7.90% | Acquired | -94.3% (price as of 2026-10-06) |
| May 10, 2005 | NBR | S | 30,047 | $54.96 | $1,651,383 | 96,519 Direct | -23.74% | Disposed | -94.1% (price as of 2026-10-06) |
| April 14, 2005 | NBR | S | 36,300 | $56.06 | $2,034,978 | 126,566 Direct | -22.29% | Disposed | -94.2% (price as of 2026-10-06) |
| Feb. 8, 2005 | NBR | M | 5,000 | $7.00 | $35,000 | 0 Direct | -100.00% | Disposed | -53.6% (price as of 2026-10-06) |
| Feb. 8, 2005 | NBR | M | 5,000 | $7.00 | $35,000 | 162,866 Direct | +3.17% | Acquired | -53.6% (price as of 2026-10-06) |
| Feb. 20, 2004 | NBR | A | 35,000 | $45.91 | $1,606,850 | 35,000 Direct | · | Acquired | -92.9% (price as of 2026-10-06) |
| Feb. 20, 2004 | NBR | A | 45,000 | $45.91 | $2,065,950 | 45,000 Direct | · | Acquired | -92.9% (price as of 2026-10-06) |
| Feb. 3, 2004 | NBR | M | 5,000 | $6.88 | $34,400 | 0 Direct | -100.00% | Disposed | -52.8% (price as of 2026-10-06) |
| Feb. 3, 2004 | NBR | M | 5,000 | $6.88 | $34,400 | 157,866 Direct | +3.27% | Acquired | -52.8% (price as of 2026-10-06) |
| Sept. 12, 2003 | NBR | M | 0 | $8.50 | · | 20,000 Direct | 0.00% | Disposed | -61.8% (price as of 2026-10-06) |
| Sept. 12, 2003 | NBR | M | 20,000 | $8.50 | $170,000 | 152,866 Direct | +15.05% | Acquired | -61.8% (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| March 31, 2011 | NBR | Stock Options (Right to Buy) | Common Stock | $30.38 | March 31, 2021 | 3,127 | Acquired |
| Dec. 31, 2010 | NBR | Stock Options (Right to Buy) | Common Stock | $23.46 | Dec. 31, 2020 | 4,208 | Acquired |
| Dec. 3, 2010 | NBR | Stock Options (Right to Buy) | Common Stock | $22.78 | Dec. 4, 2010 | 45,000 | Disposed |
| Sept. 30, 2010 | NBR | Stock Options (Right to Buy) | Common Stock | $18.06 | Sept. 30, 2020 | 6,019 | Acquired |
| June 30, 2010 | NBR | Stock Options (Right to Buy) | Common Stock | $17.62 | June 30, 2020 | 5,884 | Acquired |
| April 5, 2010 | NBR | Stock Options (Right to Buy) | Common Stock | $20.64 | April 5, 2020 | 4,841 | Acquired |
| Dec. 2, 2009 | NBR | Stock Options (Right to Buy) | Common Stock | $12.38 | Dec. 7, 2009 | 35,000 | Disposed |
| Jan. 10, 2008 | NBR | Stock Options (Right to buy) | Common Stock | $12.47 | March 3, 2008 | 10,000 | Disposed |
| Jan. 10, 2008 | NBR | Stock Options (Right to buy) | Common Stock | $6.31 | Dec. 30, 2008 | 25,000 | Disposed |
| Feb. 16, 2007 | NBR | Stock Options (Right to buy) | Common Stock | $8.12 | March 4, 2007 | 10,000 | Disposed |
| Feb. 21, 2006 | NBR | Stock Options (Right to buy) | Common Stock | $13.38 | March 5, 2006 | 5,000 | Disposed |
| Feb. 8, 2005 | NBR | Stock Options (Right to buy) | Common Stock | $7.00 | March 7, 2005 | 5,000 | Disposed |
| Feb. 20, 2004 | NBR | Stock Options (Right to buy) | Common Stock | $45.91 | Feb. 23, 2014 | 35,000 | Acquired |
| Feb. 20, 2004 | NBR | Stock Options (Right to buy) | Common Stock | $45.91 | Feb. 23, 2014 | 45,000 | Acquired |
| Feb. 3, 2004 | NBR | Stock Options (Right to buy) | Common Stock | $6.88 | March 1, 2004 | 5,000 | Disposed |
| Sept. 12, 2003 | NBR | Stock Options (Right to buy) | Common Stock | $8.50 | Sept. 14, 2003 | 0 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).