Myron M Sheinfeld

CIK 1195674 · View on SEC EDGAR ↗

Insider

First SEC filing: June 2, 2011 · Latest: June 2, 2011

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.

Insider at

NBR selling Aug. 17, 2012

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 33 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

33 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 21, 2014	NBR	A	15,000	—	—	160,604 Direct	+10.30%	Acquired	(price as of 2026-08-20)
Feb. 22, 2013	NBR	A	15,000	—	—	145,604 Direct	+11.49%	Acquired	(price as of 2026-08-20)
Aug. 17, 2012	NBR	S	1,500	$16.48	$24,720	130,604 Direct	-1.14%	Disposed	-88.9% (price as of 2026-08-20)
Aug. 14, 2012	NBR	S	3,500	$16.30	$57,050	132,104 Direct	-2.58%	Disposed	-88.7% (price as of 2026-08-20)
Feb. 24, 2012	NBR	A	12,000	—	—	135,604 Direct	+9.71%	Acquired	(price as of 2026-08-20)
Jan. 3, 2012	NBR	M	47,700	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 3, 2012	NBR	F	33,919	$19.02	$645,139	123,604 Direct	-21.53%	Disposed	-90.3% (price as of 2026-08-20)
Jan. 3, 2012	NBR	M	47,700	$13.52	$644,904	157,523 Direct	+43.43%	Acquired	-86.4% (price as of 2026-08-20)
May 31, 2011	NBR	M	2,300	—	—	47,700 Direct	-4.60%	Disposed	(price as of 2026-08-20)
May 31, 2011	NBR	S	2,300	$28.50	$65,550	109,823 Direct	-2.05%	Disposed	-93.6% (price as of 2026-08-20)
May 31, 2011	NBR	M	2,300	$13.52	$31,096	112,123 Direct	+2.09%	Acquired	-86.4% (price as of 2026-08-20)
Feb. 18, 2011	NBR	A	12,000	—	—	109,823 Direct	+12.27%	Acquired	(price as of 2026-08-20)
Dec. 3, 2010	NBR	M	60,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 3, 2010	NBR	F	57,927	$23.59	$1,366,498	97,823 Direct	-37.19%	Disposed	-92.2% (price as of 2026-08-20)
Dec. 3, 2010	NBR	M	60,000	$22.78	$1,366,800	155,750 Direct	+62.66%	Acquired	-91.9% (price as of 2026-08-20)
Feb. 18, 2010	NBR	A	12,000	—	—	95,750 Direct	+14.33%	Acquired	(price as of 2026-08-20)
Jan. 8, 2010	NBR	S	5,936	$26.90	$159,678	83,750 Direct	-6.62%	Disposed	-93.2% (price as of 2026-08-20)
Aug. 3, 2009	NBR	S	5,000	$18.00	$90,000	89,686 Direct	-5.28%	Disposed	-89.8% (price as of 2026-08-20)
Feb. 20, 2009	NBR	A	12,000	—	—	94,686 Direct	+14.51%	Acquired	(price as of 2026-08-20)
Dec. 18, 2008	NBR	S	5,000	$12.00	$60,000	82,686 Direct	-5.70%	Disposed	-84.7% (price as of 2026-08-20)
May 16, 2008	NBR	M	15,000	$22.78	$341,700	60,000 Direct	-20.00%	Disposed	-91.9% (price as of 2026-08-20)
May 16, 2008	NBR	S	1,200	$40.84	$49,008	87,686 Direct	-1.35%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	2,600	$40.83	$106,158	88,886 Direct	-2.84%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	500	$40.79	$20,395	91,486 Direct	-0.54%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	1,200	$40.78	$48,936	91,986 Direct	-1.29%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	2,100	$40.77	$85,617	93,186 Direct	-2.20%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	3,279	$40.76	$133,652	95,286 Direct	-3.33%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	3,200	$40.75	$130,400	98,565 Direct	-3.14%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	400	$40.74	$16,296	101,765 Direct	-0.39%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	221	$40.73	$9,001	102,165 Direct	-0.22%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	S	300	$40.72	$12,216	102,386 Direct	-0.29%	Disposed	-95.5% (price as of 2026-08-20)
May 16, 2008	NBR	M	15,000	$22.78	$341,700	102,686 Direct	+17.11%	Acquired	-91.9% (price as of 2026-08-20)
March 26, 2008	NBR	S	2,300	$33.44	$76,912	87,686 Direct	-2.56%	Disposed	-94.5% (price as of 2026-08-20)
March 26, 2008	NBR	S	600	$33.42	$20,052	89,986 Direct	-0.66%	Disposed	-94.5% (price as of 2026-08-20)
March 26, 2008	NBR	S	2,000	$33.42	$66,840	90,586 Direct	-2.16%	Disposed	-94.5% (price as of 2026-08-20)
March 26, 2008	NBR	S	100	$33.41	$3,341	92,586 Direct	-0.11%	Disposed	-94.5% (price as of 2026-08-20)
Feb. 22, 2008	NBR	A	12,000	—	—	92,686 Direct	+14.87%	Acquired	(price as of 2026-08-20)
Feb. 22, 2007	NBR	A	12,000	—	—	80,686 Direct	+17.47%	Acquired	(price as of 2026-08-20)
March 10, 2006	NBR	A	7,500	$63.90	$479,250	34,343 Direct	+27.94%	Acquired	-94.3% (price as of 2026-08-20)
June 23, 2005	NBR	M	30,000	$27.05	$811,500	25,000 Direct	-54.55%	Disposed	-86.4% (price as of 2026-08-20)
June 23, 2005	NBR	S	30,000	$61.50	$1,845,000	26,843 Direct	-52.78%	Disposed	-94.0% (price as of 2026-08-20)
June 23, 2005	NBR	M	30,000	$27.05	$811,500	56,843 Direct	+111.76%	Acquired	-86.4% (price as of 2026-08-20)
June 7, 2005	NBR	A	10,000	$56.87	$568,700	26,843 Direct	+59.37%	Acquired	-93.5% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	5,000	$24.94	$124,700	0 Direct	-100.00%	Disposed	-85.3% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	6,500	$24.75	$160,875	0 Direct	-100.00%	Disposed	-85.2% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	5,000	$16.25	$81,250	0 Direct	-100.00%	Disposed	-77.4% (price as of 2026-08-20)
Nov. 23, 2004	NBR	S	16,500	$52.90	$872,850	16,843 Direct	-49.49%	Disposed	-93.1% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	5,000	$24.94	$124,700	33,343 Direct	+17.64%	Acquired	-85.3% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	6,500	$24.75	$160,875	28,343 Direct	+29.76%	Acquired	-85.2% (price as of 2026-08-20)
Nov. 23, 2004	NBR	M	5,000	$16.25	$81,250	21,843 Direct	+29.69%	Acquired	-77.4% (price as of 2026-08-20)
March 1, 2004	NBR	M	10,000	$24.75	$247,500	6,500 Direct	-60.61%	Disposed	-85.2% (price as of 2026-08-20)
March 1, 2004	NBR	S	10,000	$48.57	$485,700	16,843 Direct	-37.25%	Disposed	-92.4% (price as of 2026-08-20)
March 1, 2004	NBR	M	10,000	$24.75	$247,500	26,843 Direct	+59.37%	Acquired	-85.2% (price as of 2026-08-20)
Feb. 20, 2004	NBR	A	45,000	$45.91	$2,065,950	45,000 Direct	—	Acquired	-92.0% (price as of 2026-08-20)
Jan. 21, 2004	NBR	M	10,000	—	—	16,500 Direct	-37.74%	Disposed	(price as of 2026-08-20)
Jan. 21, 2004	NBR	S	10,000	$45.00	$450,000	16,843 Direct	-37.25%	Disposed	-91.8% (price as of 2026-08-20)
Jan. 21, 2004	NBR	M	10,000	$24.75	$247,500	26,843 Direct	+59.37%	Acquired	-85.2% (price as of 2026-08-20)

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. 3, 2012	NBR	Stock Options (Right to Buy)	Common Stock (47,700)	$13.52	Jan. 22, 2012	47,700	Disposed
May 31, 2011	NBR	Stock Options (Right to Buy)	Common Stock (2,300)	$13.52	Jan. 22, 2012	2,300	Disposed
Dec. 3, 2010	NBR	Stock Options (Right to Buy)	Common Stock (60,000)	$22.78	Dec. 4, 2010	60,000	Disposed
May 16, 2008	NBR	Stock Options (Right to buy)	Common Stock (15,000)	$22.78	Dec. 4, 2010	15,000	Disposed
June 23, 2005	NBR	Stock Options (Right to buy)	Common Stock (30,000)	$27.05	Jan. 22, 2012	30,000	Disposed
Nov. 23, 2004	NBR	Stock Option (Right to buy)	Common Stock (5,000)	$24.94	March 3, 2008	5,000	Disposed
Nov. 23, 2004	NBR	Stock Option (Right to buy)	Common Stock (6,500)	$24.75	Dec. 7, 2009	6,500	Disposed
Nov. 23, 2004	NBR	Stock Option (Right to buy)	Common Stock (5,000)	$16.25	March 4, 2007	5,000	Disposed
March 1, 2004	NBR	Stock Options (Right to buy)	Common Stock (10,000)	$24.75	Dec. 7, 2009	10,000	Disposed
Feb. 20, 2004	NBR	Stock Options (Right to buy)	Common Stock (45,000)	$45.91	Feb. 20, 2014	45,000	Acquired
Jan. 21, 2004	NBR	Stock Options (Right to buy)	Common Stock (10,000)	$24.75	Dec. 7, 2009	10,000	Disposed

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