Alexander M Knaster
Insider
First SEC filing: Nov. 14, 2008 · Latest: Nov. 14, 2008
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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 13, 2008 | NBR | P | 10,000 | $13.50 | $135,000 | 334,000 Direct | +3.09% | Acquired | -88.2% (price as of 2026-10-02) |
| Nov. 13, 2008 | NBR | P | 10,000 | $13.10 | $131,000 | 324,000 Direct | +3.18% | Acquired | -87.8% (price as of 2026-10-02) |
| Nov. 13, 2008 | NBR | P | 10,000 | $12.85 | $128,500 | 314,000 Direct | +3.29% | Acquired | -87.6% (price as of 2026-10-02) |
| Nov. 12, 2008 | NBR | P | 30,000 | $13.75 | $412,500 | 304,000 Direct | +10.95% | Acquired | -88.4% (price as of 2026-10-02) |
| Oct. 30, 2008 | NBR | P | 10,000 | $13.93 | $139,300 | 299,000 Direct | +3.46% | Acquired | -88.6% (price as of 2026-10-02) |
| Oct. 30, 2008 | NBR | P | 19,400 | $13.75 | $266,750 | 289,000 Direct | +7.20% | Acquired | -88.4% (price as of 2026-10-02) |
| Oct. 30, 2008 | NBR | P | 400 | $13.75 | $5,500 | 269,600 Direct | +0.15% | Acquired | -88.4% (price as of 2026-10-02) |
| Oct. 30, 2008 | NBR | P | 200 | $13.75 | $2,750 | 269,200 Direct | +0.07% | Acquired | -88.4% (price as of 2026-10-02) |
| Oct. 30, 2008 | NBR | P | 10,000 | $13.72 | $137,200 | 269,000 Direct | +3.86% | Acquired | -88.4% (price as of 2026-10-02) |
| Oct. 14, 2008 | NBR | D | 25,000 | · | · | 234,000 Direct | -9.65% | Disposed | (price as of 2026-10-02) |
| Feb. 22, 2008 | NBR | A | 12,000 | · | · | 259,000 Direct | +4.86% | Acquired | (price as of 2026-10-02) |
| Feb. 22, 2007 | NBR | A | 12,000 | · | · | 247,000 Direct | +5.11% | Acquired | (price as of 2026-10-02) |
| March 10, 2006 | NBR | A | 7,500 | $63.90 | $479,250 | 117,500 Direct | +6.82% | Acquired | -95.0% (price as of 2026-10-02) |
| Aug. 23, 2005 | NBR | P | 3,700 | $63.33 | $234,321 | 110,000 Direct | +3.48% | Acquired | -95.0% (price as of 2026-10-02) |
| Aug. 22, 2005 | NBR | P | 18,700 | $63.19 | $1,181,653 | 106,300 Direct | +21.35% | Acquired | -95.0% (price as of 2026-10-02) |
| June 7, 2005 | NBR | A | 10,000 | $56.87 | $568,700 | 87,600 Direct | +12.89% | Acquired | -94.4% (price as of 2026-10-02) |
| May 23, 2005 | NBR | P | 17,600 | $52.50 | $924,000 | 77,600 Direct | +29.33% | Acquired | -93.9% (price as of 2026-10-02) |
| May 19, 2005 | NBR | P | 10,000 | $51.50 | $515,000 | 60,000 Direct | +20.00% | Acquired | -93.8% (price as of 2026-10-02) |
| May 18, 2005 | NBR | P | 20,000 | $51.15 | $1,023,000 | 50,000 Direct | +66.67% | Acquired | -93.8% (price as of 2026-10-02) |
| May 16, 2005 | NBR | P | 30,000 | $51.27 | $1,538,100 | 30,000 Direct | · | Acquired | -93.8% (price as of 2026-10-02) |
| Nov. 9, 2004 | NBR | A | 30,000 | $47.03 | $1,410,900 | 30,000 Direct | · | Acquired | -93.2% (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Nov. 9, 2004 | NBR | Stock Options (Right to buy) | Common Stock | $47.03 | Nov. 9, 2014 | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).