Mark S. Siegel

CIK 919501 · View on SEC EDGAR ↗

Activist

First SEC filing: March 24, 2025 · Latest: March 24, 2025

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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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

PTEN selling June 12, 2014

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 84 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

84 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 11, 2020	PTEN	A	119,203	—	—	1,574,985 Direct	+8.19%	Acquired	(price as of 2026-08-20)
April 26, 2019	PTEN	M	350,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 26, 2019	PTEN	F	336,283	$14.28	$4,802,121	1,455,782 Direct	-18.77%	Disposed	-14.4% (price as of 2026-08-20)
April 26, 2019	PTEN	M	350,000	$13.17	$4,609,500	1,792,065 Direct	+24.27%	Acquired	-7.2% (price as of 2026-08-20)
April 24, 2019	PTEN	F	17,565	$15.83	$278,054	1,442,065 Direct	-1.20%	Disposed	-22.8% (price as of 2026-08-20)
April 23, 2019	PTEN	A	69,600	—	—	1,459,630 Direct	+5.01%	Acquired	(price as of 2026-08-20)
April 23, 2019	PTEN	F	10,094	$15.83	$159,788	1,390,030 Direct	-0.72%	Disposed	-22.8% (price as of 2026-08-20)
April 23, 2019	PTEN	A	33,100	—	—	1,400,124 Direct	+2.42%	Acquired	(price as of 2026-08-20)
Jan. 9, 2019	PTEN	G	33,500	—	—	83,400 Indirect	+67.13%	Acquired	(price as of 2026-08-20)
Jan. 9, 2019	PTEN	G	33,500	—	—	1,367,024 Direct	-2.39%	Disposed	(price as of 2026-08-20)
May 2, 2018	PTEN	F	82,037	$21.50	$1,763,796	1,400,524 Direct	-5.53%	Disposed	-43.2% (price as of 2026-08-20)
April 24, 2018	PTEN	F	35,099	$19.64	$689,344	1,482,561 Direct	-2.31%	Disposed	-37.8% (price as of 2026-08-20)
April 24, 2018	PTEN	A	101,600	—	—	1,517,660 Direct	+7.17%	Acquired	(price as of 2026-08-20)
April 24, 2018	PTEN	A	199,600	—	—	1,416,060 Direct	+16.41%	Acquired	(price as of 2026-08-20)
May 2, 2017	PTEN	A	113,586	—	—	1,216,460 Direct	+10.30%	Acquired	(price as of 2026-08-20)
May 2, 2017	PTEN	A	155,628	—	—	1,102,874 Direct	+16.43%	Acquired	(price as of 2026-08-20)
April 26, 2016	PTEN	A	151,300	—	—	151,300 Direct	—	Acquired	(price as of 2026-08-20)
April 26, 2016	PTEN	A	38,700	—	—	947,246 Direct	+4.26%	Acquired	(price as of 2026-08-20)
April 22, 2015	PTEN	F	16,451	$20.33	$334,449	908,546 Direct	-1.78%	Disposed	-39.9% (price as of 2026-08-20)
April 21, 2015	PTEN	A	205,600	—	—	205,600 Direct	—	Acquired	(price as of 2026-08-20)
April 21, 2015	PTEN	F	100,186	$20.33	$2,036,781	924,997 Direct	-9.77%	Disposed	-39.9% (price as of 2026-08-20)
April 21, 2015	PTEN	A	192,000	$20.33	$3,903,360	1,025,183 Direct	+23.04%	Acquired	-39.9% (price as of 2026-08-20)
April 21, 2015	PTEN	A	59,300	—	—	833,183 Direct	+7.66%	Acquired	(price as of 2026-08-20)
June 12, 2014	PTEN	S	98,000	$33.75	$3,307,500	605,000 Indirect	-13.94%	Disposed	-63.8% (price as of 2026-08-20)
June 12, 2014	PTEN	S	98,000	$33.75	$3,307,500	773,883 Direct	-11.24%	Disposed	-63.8% (price as of 2026-08-20)
June 11, 2014	PTEN	S	12,000	$33.19	$398,280	703,000 Indirect	-1.68%	Disposed	-63.2% (price as of 2026-08-20)
June 11, 2014	PTEN	S	12,000	$33.19	$398,280	871,883 Direct	-1.36%	Disposed	-63.2% (price as of 2026-08-20)
June 10, 2014	PTEN	S	60,000	$33.50	$2,010,000	715,000 Indirect	-7.74%	Disposed	-63.5% (price as of 2026-08-20)
June 10, 2014	PTEN	S	60,000	$33.50	$2,010,000	883,883 Direct	-6.36%	Disposed	-63.5% (price as of 2026-08-20)
April 29, 2014	PTEN	S 10b5-1	225,000	$32.54	$7,321,500	775,000 Indirect	-22.50%	Disposed	-62.4% (price as of 2026-08-20)
April 26, 2014	PTEN	F	1,378	$32.22	$44,399	943,883 Direct	-0.15%	Disposed	-62.1% (price as of 2026-08-20)
April 25, 2014	PTEN	M	120,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 25, 2014	PTEN	F	96,705	$32.22	$3,115,835	945,261 Direct	-9.28%	Disposed	-62.1% (price as of 2026-08-20)
April 25, 2014	PTEN	M	120,000	$19.14	$2,296,800	1,041,966 Direct	+13.02%	Acquired	-36.2% (price as of 2026-08-20)
April 24, 2014	PTEN	F	1,392	$33.49	$46,618	921,966 Direct	-0.15%	Disposed	-63.5% (price as of 2026-08-20)
April 22, 2014	PTEN	A	157,000	—	—	157,000 Direct	—	Acquired	(price as of 2026-08-20)
April 22, 2014	PTEN	F	54,789	$33.10	$1,813,516	923,358 Direct	-5.60%	Disposed	-63.1% (price as of 2026-08-20)
April 22, 2014	PTEN	A	105,000	$33.10	$3,475,500	978,147 Direct	+12.03%	Acquired	-63.1% (price as of 2026-08-20)
April 22, 2014	PTEN	A	85,000	—	—	873,147 Direct	+10.78%	Acquired	(price as of 2026-08-20)
April 22, 2014	PTEN	F	20,003	$33.55	$671,101	788,147 Direct	-2.48%	Disposed	-63.6% (price as of 2026-08-20)
April 24, 2013	PTEN	F	16,698	$23.29	$388,896	808,150 Direct	-2.02%	Disposed	-47.5% (price as of 2026-08-20)
April 22, 2013	PTEN	A	230,000	—	—	230,000 Direct	—	Acquired	(price as of 2026-08-20)
April 22, 2013	PTEN	A	115,000	—	—	824,848 Direct	+16.20%	Acquired	(price as of 2026-08-20)
April 22, 2013	PTEN	F	67,834	$22.88	$1,552,042	709,848 Direct	-8.72%	Disposed	-46.6% (price as of 2026-08-20)
April 22, 2013	PTEN	A	130,000	$22.88	$2,974,400	777,682 Direct	+20.07%	Acquired	-46.6% (price as of 2026-08-20)
March 29, 2013	PTEN	M	380,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 29, 2013	PTEN	F	321,918	$23.84	$7,674,525	647,682 Direct	-33.20%	Disposed	-48.7% (price as of 2026-08-20)
March 29, 2013	PTEN	M	380,000	$16.22	$6,163,600	969,600 Direct	+64.45%	Acquired	-24.7% (price as of 2026-08-20)
Dec. 28, 2012	PTEN	J	49,900	—	—	49,900 Indirect	—	Acquired	(price as of 2026-08-20)
Dec. 28, 2012	PTEN	J	49,900	—	—	589,600 Direct	-7.80%	Disposed	(price as of 2026-08-20)
April 24, 2012	PTEN	A	320,000	—	—	320,000 Direct	—	Acquired	(price as of 2026-08-20)
April 24, 2012	PTEN	A	96,000	—	—	639,500 Direct	+17.66%	Acquired	(price as of 2026-08-20)
April 28, 2011	PTEN	F	940	$30.90	$29,046	543,500 Direct	-0.17%	Disposed	-60.5% (price as of 2026-08-20)
April 27, 2011	PTEN	F	15,560	$31.20	$485,472	544,440 Direct	-2.78%	Disposed	-60.8% (price as of 2026-08-20)
April 26, 2011	PTEN	A	138,000	—	—	138,000 Direct	—	Acquired	(price as of 2026-08-20)
April 26, 2011	PTEN	A	95,000	—	—	560,000 Direct	+20.43%	Acquired	(price as of 2026-08-20)
April 27, 2010	PTEN	A	355,000	—	—	355,000 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2010	PTEN	A	0	—	—	1,000,000 Indirect	0.00%	Acquired	(price as of 2026-08-20)
April 27, 2010	PTEN	A	100,000	—	—	465,000 Direct	+27.40%	Acquired	(price as of 2026-08-20)
April 28, 2009	PTEN	A	350,000	—	—	350,000 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2009	PTEN	A	0	—	—	1,000,000 Indirect	0.00%	Acquired	(price as of 2026-08-20)
April 28, 2009	PTEN	A	98,000	—	—	365,000 Direct	+36.70%	Acquired	(price as of 2026-08-20)
May 6, 2008	PTEN	M	175,900	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 6, 2008	PTEN	M	100,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 6, 2008	PTEN	S	541,548	$30.73	$16,641,770	1,000,000 Indirect	-35.13%	Disposed	-60.2% (price as of 2026-08-20)
May 6, 2008	PTEN	S	305,900	$30.73	$9,400,307	267,000 Direct	-53.40%	Disposed	-60.2% (price as of 2026-08-20)
May 6, 2008	PTEN	M	175,900	$13.20	$2,321,880	572,900 Direct	+44.31%	Acquired	-7.4% (price as of 2026-08-20)
May 6, 2008	PTEN	M	100,000	$7.92	$792,000	397,000 Direct	+33.67%	Acquired	54.3% (price as of 2026-08-20)
April 28, 2008	PTEN	A	0	—	—	1,541,548 Indirect	0.00%	Acquired	(price as of 2026-08-20)
April 28, 2008	PTEN	F	11,137	$29.31	$326,425	297,000 Direct	-3.61%	Disposed	-58.3% (price as of 2026-08-20)
April 27, 2008	PTEN	F	6,863	$29.31	$201,155	308,137 Direct	-2.18%	Disposed	-58.3% (price as of 2026-08-20)
April 25, 2008	PTEN	A	238,000	—	—	238,000 Direct	—	Acquired	(price as of 2026-08-20)
April 25, 2008	PTEN	A	95,000	—	—	315,000 Direct	+43.18%	Acquired	(price as of 2026-08-20)
April 23, 2007	PTEN	A	300,000	—	—	300,000 Direct	—	Acquired	(price as of 2026-08-20)
April 23, 2007	PTEN	A	0	—	—	1,541,548 Indirect	0.00%	Acquired	(price as of 2026-08-20)
April 23, 2007	PTEN	A	50,000	—	—	220,000 Direct	+29.41%	Acquired	(price as of 2026-08-20)
Aug. 1, 2006	PTEN	A	250,000	—	—	250,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 1, 2006	PTEN	A	0	—	—	1,541,548 Indirect	0.00%	Acquired	(price as of 2026-08-20)
Aug. 1, 2006	PTEN	A	30,000	—	—	170,000 Direct	+21.43%	Acquired	(price as of 2026-08-20)
Aug. 3, 2005	PTEN	M	38,000	—	—	175,900 Direct	-17.77%	Disposed	(price as of 2026-08-20)
Aug. 3, 2005	PTEN	S	547,500	$33.19	$18,171,525	1,541,548 Indirect	-26.21%	Disposed	-63.2% (price as of 2026-08-20)
Aug. 3, 2005	PTEN	S	198,000	$33.19	$6,571,620	140,000 Direct	-58.58%	Disposed	-63.2% (price as of 2026-08-20)
Aug. 3, 2005	PTEN	M	38,000	$13.20	$501,600	338,000 Direct	+12.67%	Acquired	-7.4% (price as of 2026-08-20)
Aug. 2, 2005	PTEN	M	195,100	—	—	213,900 Direct	-47.70%	Disposed	(price as of 2026-08-20)
Aug. 2, 2005	PTEN	S	539,700	$32.97	$17,793,909	2,089,048 Indirect	-20.53%	Disposed	-62.9% (price as of 2026-08-20)
Aug. 2, 2005	PTEN	S	195,100	$32.97	$6,432,447	300,000 Direct	-39.41%	Disposed	-62.9% (price as of 2026-08-20)
Aug. 2, 2005	PTEN	M	195,100	$13.20	$2,575,320	495,100 Direct	+65.03%	Acquired	-7.4% (price as of 2026-08-20)
Aug. 1, 2005	PTEN	M	191,000	—	—	409,000 Direct	-31.83%	Disposed	(price as of 2026-08-20)
Aug. 1, 2005	PTEN	M	47,600	—	—	100,000 Direct	-32.25%	Disposed	(price as of 2026-08-20)
Aug. 1, 2005	PTEN	S	659,600	$32.82	$21,648,072	2,628,748 Indirect	-20.06%	Disposed	-62.8% (price as of 2026-08-20)
Aug. 1, 2005	PTEN	S	238,600	$32.82	$7,830,852	300,000 Direct	-44.30%	Disposed	-62.8% (price as of 2026-08-20)
Aug. 1, 2005	PTEN	M	191,000	$13.20	$2,521,200	538,600 Direct	+54.95%	Acquired	-7.4% (price as of 2026-08-20)
Aug. 1, 2005	PTEN	M	47,600	$7.92	$376,992	347,600 Direct	+15.87%	Acquired	54.3% (price as of 2026-08-20)
April 27, 2005	PTEN	A	150,000	—	—	150,000 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2005	PTEN	A	0	—	—	3,288,348 Indirect	0.00%	Acquired	(price as of 2026-08-20)
April 27, 2005	PTEN	A	30,000	—	—	300,000 Direct	+11.11%	Acquired	(price as of 2026-08-20)
March 9, 2005	PTEN	M	166,800	—	—	600,000 Direct	-21.75%	Disposed	(price as of 2026-08-20)
March 9, 2005	PTEN	S	615,600	$25.49	$15,691,644	3,288,348 Indirect	-15.77%	Disposed	-52.1% (price as of 2026-08-20)
March 8, 2005	PTEN	M	33,200	—	—	766,800 Direct	-4.15%	Disposed	(price as of 2026-08-20)
March 8, 2005	PTEN	M	95,600	—	—	147,600 Direct	-39.31%	Disposed	(price as of 2026-08-20)

Showing latest 100 of 142 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
April 26, 2019	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (350,000)	$13.17	April 27, 2019	350,000	Disposed
April 26, 2016	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (151,300)	$18.54	April 25, 2026	151,300	Acquired
April 21, 2015	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (205,600)	$20.33	April 20, 2025	205,600	Acquired
April 25, 2014	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (120,000)	$19.14	April 27, 2014	120,000	Disposed
April 22, 2014	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (157,000)	$33.10	April 21, 2024	157,000	Acquired
April 22, 2013	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (230,000)	$22.88	April 21, 2023	230,000	Acquired
March 29, 2013	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (380,000)	$16.22	April 29, 2013	380,000	Disposed
April 24, 2012	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (320,000)	$16.20	April 23, 2022	320,000	Acquired
April 26, 2011	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (138,000)	$31.20	April 25, 2021	138,000	Acquired
April 27, 2010	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (355,000)	$14.83	April 26, 2020	355,000	Acquired
April 28, 2009	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (350,000)	$13.17	April 27, 2019	350,000	Acquired
May 6, 2008	PTEN	Stock Option (Right to Buy)	Common Stock (175,900)	$13.20	July 17, 2012	175,900	Disposed
May 6, 2008	PTEN	Stock Option (Right to Buy)	Common Stock (100,000)	$7.92	July 19, 2011	100,000	Disposed
April 25, 2008	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (238,000)	$29.31	April 24, 2018	238,000	Acquired
April 23, 2007	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (300,000)	$24.17	April 22, 2017	300,000	Acquired
Aug. 1, 2006	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (250,000)	$28.16	July 31, 2016	250,000	Acquired
Aug. 3, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (38,000)	$13.20	July 17, 2012	38,000	Disposed
Aug. 2, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (195,100)	$13.20	July 17, 2012	195,100	Disposed
Aug. 1, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (191,000)	$13.20	July 17, 2012	191,000	Disposed
Aug. 1, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (47,600)	$7.92	July 19, 2011	47,600	Disposed
April 27, 2005	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (150,000)	$24.63	April 26, 2015	150,000	Acquired
March 9, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (166,800)	$13.20	July 17, 2012	166,800	Disposed
March 8, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (33,200)	$13.20	July 17, 2012	33,200	Disposed
March 8, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (95,600)	$7.92	July 19, 2011	95,600	Disposed
March 1, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (3,900)	$7.92	July 19, 2011	3,900	Disposed
Feb. 28, 2005	PTEN	Stock Options (Right to Buy)	Common Stock (52,900)	$7.92	July 19, 2011	52,900	Disposed
Nov. 19, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (200,000)	$7.92	July 19, 2011	200,000	Disposed
Nov. 19, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (34,300)	$2.45	April 25, 2009	34,300	Disposed
Nov. 3, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (16,200)	$2.45	April 25, 2009	16,200	Disposed
Nov. 1, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (39,500)	$2.45	April 25, 2009	39,500	Disposed
April 28, 2004	PTEN	Stock Option (Right to Buy)	Common Stock, $.01 par value per share (60,000)	$38.28	April 27, 2011	60,000	Acquired
Feb. 10, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (17,820)	$4.91	April 25, 2009	17,820	Disposed
Feb. 9, 2004	PTEN	Stock Options (Right to Buy)	Common Stock (117,180)	$4.91	April 25, 2009	117,180	Disposed

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

PTEN

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2018	$752,308	—	$6,122,624	—	$440,000	—	—	$7,314,932
2017	$635,577	$2,550,000	$7,882,637	—	$1,750,000	—	—	$12,818,214
2016	$350,000	—	$1,406,971	$732,278	$375,151	—	—	$2,864,400

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.