Corbin J Robertson Jr Net Worth - Insider Trades and Bio as of Jul 7, 2026

KLXEKLX Energy Services Holdings, Inc.SEC CIK: 0001194888

Estimated Net Worth

$3.27 Billion0.0%vs Last Year

Last Updated: May 19, 2026 11:09 PM EST

Transaction Summary

Total Transactions115

Buy-Sell Ratio0.84

Buy Transactions16

Sell Transactions19

Transaction Volume

Total Volume-$14.72M

Net Volume$26.37M

Buy Volume$5.83M

Sell Volume-$20.55M

Trade Analysis

AVG Trade Size$43.32K

Largest Trade$16.50M

Most Active MonthFeb

Most Active Year2021

Trading Sentiment

OverallBullish

Recent TradeNeutral

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Corbin J Robertson Jr has an estimated net worth of $3.27 Billion. This is based on reported shares across multiple companies, which include KLX Energy Services Holdings, Inc., Quintana Maritime LTD, Quintana Energy Services Inc., and NATURAL RESOURCE PARTNERS LP.

2013 was Corbin J Robertson Jr's most active year for acquiring shares with 19 total transactions. Corbin J Robertson Jr's most active month to acquire stocks was the month of January. 2021 was Corbin J Robertson Jr's most active year for disposing of shares, totalling 92 transactions. Corbin J Robertson Jr's most active month to dispose stocks was the month of June. 2013 saw Corbin J Robertson Jr paying a total of $16,745,338.12 for 912,106 shares, this is the most they've acquired in one year. In 2004 Corbin J Robertson Jr cashed out on 311,734 shares for a total of $15,145,213.20, their largest year based on trade value.

Holdings & Transactions

KLXEklx energy services holdings, inc.

Updated: Feb 02, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.33	14.48K	—	—	Feb 02, 2026	58.01K	Grant	—	Jan 29	View
From 4	0.15	5.66K	—	—	Feb 04, 2025	43.53K	Grant	—	Feb 01	View
From 4	0.18	5.66K	—	—	Feb 02, 2024	37.87K	Grant	—	Feb 01	View
From 4	0.07	2.03K	—	—	Feb 03, 2023	32.21K	Grant	—	Feb 01	View
From 4	-1.00	23.32K	$7.04	-$164.25K	Mar 25, 2022	30.18K	Sale	—	Mar 23 - 24	View
From 4	-0.77	76.68K	$7.20	-$552.40K	Mar 22, 2022	53.50K	Sale	—	Mar 18 - 21	View
From 4	-0.59	185.96K	$7.78	-$1.50M	Mar 17, 2022	130.18K	Sale	—	Mar 15 - 17	View
From 4	-0.42	162.81K	$4.83	-$794.39K	Oct 05, 2021	536.95K	Sale	—	Oct 01 - 05	View
From 4	-0.07	25.92K	$4.61	-$120.03K	Oct 01, 2021	657.37K	Sale	—	Sep 29 - 30	View
From 4	-0.16	80.63K	$4.75	-$382.47K	Sep 29, 2021	737.39K	Sale	—	Sep 27 - 28	View
From 4	-0.10	60.36K	$4.78	-$285.90K	Sep 27, 2021	864.35K	Sale	—	Sep 23 - 24	View
From 4	-0.04	31.15K	$4.43	-$138.04K	Sep 23, 2021	991.27K	Sale	—	Sep 21 - 22	View
From 4/A	-0.06	19.11K	$4.93	-$94.17K	Sep 23, 2021	609.51K	Sale	—	Sep 17	View
From 4	-0.03	21.14K	$4.81	-$100.69K	Sep 21, 2021	1.09M	Sale	—	Sep 17 - 20	View
From 4	-0.02	20.13K	$5.21	-$104.51K	Sep 17, 2021	1.13M	Sale	—	Sep 15 - 16	View
From 4	-0.05	40.97K	$5.61	-$227.72K	Sep 15, 2021	1.18M	Sale	—	Sep 13 - 14	View
From 4	-0.01	10.12K	$6.08	-$61.83K	Aug 02, 2021	1.24M	Sale	—	Jul 29 - 30	View
From 4	-0.01	8.52K	$6.06	-$51.56K	Jul 29, 2021	1.26M	Sale	—	Jul 27 - 28	View
From 4	-0.02	18.11K	$6.16	-$111.35K	Jul 27, 2021	1.28M	Sale	—	Jul 23 - 26	View
From 4	-0.05	59.59K	$6.53	-$387.69K	Jul 23, 2021	1.35M	Sale	—	Jul 21 - 22	View
From 4	-0.02	24.62K	$6.27	-$152.98K	Jul 21, 2021	1.44M	Sale	—	Jul 19 - 20	View
From 4	-0.02	45.10K	$7.03	-$313.53K	Jul 19, 2021	2.08M	Sale	—	Jul 15 - 16	View
From 4	0.09	2.26K	—	—	Mar 09, 2021	942.07K	Grant	—	Mar 05	View
From 4	—	939.81K	—	—	Jul 30, 2020	939.81K	Grant	—	Jul 28	View
From 3	—	—	—	—	Jul 30, 2020	—	—	—	—	View

NRPnatural resource partners lp

Chairman and CEO Director

Updated: Feb 12, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.18	117.03K	$123.04	-$3.53M	Feb 12, 2026	2.66M	Options	—	Feb 10	View
From 4	—	7.94K	—	—	Feb 06, 2026	7.94K	Grant	—	Feb 04	View
From 4	-0.00	794.00	—	—	Jan 05, 2026	2.60M	Disposition	—	Dec 31	View
From 4	0.14	93.26K	$102.72	-$2.35M	Feb 12, 2025	2.64M	Options	—	Feb 11	View
From 4	—	7.51K	—	—	Feb 06, 2025	7.52K	Grant	—	Feb 05	View
From 4	0.19	118.12K	$86.91	-$2.51M	Feb 20, 2024	2.65M	Options	—	Feb 15	View
From 4	—	8.27K	—	—	Feb 08, 2024	8.27K	Grant	—	Feb 07	View
From 4	0.20	115.48K	$54.08	-$1.30M	Feb 16, 2023	2.60M	Options	—	Feb 15	View
From 4	—	81.66K	—	—	Feb 03, 2023	81.66K	Grant	—	Feb 01	View
From 4	0.23	117.58K	$35.62	-$1.03M	Feb 25, 2022	2.54M	Options	—	Feb 23	View
From 4	—	84.23K	—	—	Feb 17, 2022	84.23K	Grant	—	Feb 09	View
From 4	0.12	60.81K	$17.63	-$262.58K	Mar 02, 2021	2.48M	Options	—	Mar 01	View
From 4	—	54.70K	—	—	Feb 12, 2021	54.70K	Grant	—	Feb 11	View
From 4	—	70.38K	—	—	Feb 14, 2020	70.38K	Grant	—	Feb 13	View
From 4	—	31.50K	—	—	Feb 19, 2019	4.16M	Grant	—	Feb 14	View
From 4	-1.00	3.60K	$38.22	-$137.59K	Feb 12, 2019	4.14M	Options	—	Feb 11	View
From 4	—	17.75K	$31.69	-$106.47K	Feb 14, 2018	4.15M	Options	—	Feb 12 - 14	View
From 4	-1.00	3.20K	$36.54	-$116.92K	Feb 15, 2017	4.14M	Options	—	Feb 13	View
From 4	-0.02	32.00K	$1.03	-$33.09K	Feb 17, 2016	24.45M	Options	—	Feb 14	View
From 4	0.00	3.00K	$8.95	-$295.37K	Feb 12, 2015	24.48M	Options	—	Feb 10 - 11	View
From 4	0.26	270.38K	$12.02	$3.25M	Oct 10, 2014	24.48M	Purchase	—	Oct 10	View
From 4	0.00	600.00	$15.81	-$521.73K	Feb 13, 2014	24.21M	Options	—	Feb 11 - 12	View
From 4	0.01	12.50K	$19.63	$245.34K	Aug 26, 2013	25.22M	Purchase	—	Aug 22	View
From 4	0.00	2.00K	$20.00	—	Aug 26, 2013	25.08M	Purchase	—	Oct 17 - 18	View
From 4	-0.00	3.00K	$22.01	-$770.35K	Feb 13, 2013	24.19M	Options	—	Feb 12 - 13	View
From 4	4.62	832.61K	$19.82	$16.50M	Jan 23, 2013	24.19M	Acquisition	—	Jan 23	View
From 4	-0.10	20.00K	$26.90	-$538.00K	Feb 24, 2012	23.36M	Options	—	Feb 22	View
From 4	—	32.00K	—	—	Feb 16, 2012	23.38M	Grant	—	Feb 14	View
From 4	0.10	543.92K	—	—	Jun 10, 2011	23.23M	Acquisition	—	Jun 09	View
From 4	0.04	7.00K	$35.44	-$921.44K	Feb 14, 2011	22.81M	Options	—	Feb 10 - 13	View
From 4	31.01	5.21M	—	—	Sep 22, 2010	22.68M	Grant	—	Sep 20	View
From 4	0.22	13.00K	$24.06	-$481.20K	Feb 16, 2010	17.59M	Options	—	Feb 11 - 13	View
From 4	-1.00	670.02K	—	—	Jul 30, 2009	17.44M	Disposition	—	Jul 28	View
From 4/A	—	—	—	—	Feb 17, 2009	127.88K	—	—	—	View
From 4	0.25	15.00K	$22.81	-$456.20K	Feb 17, 2009	18.25M	Options	—	Feb 12 - 14	View
From 4/A	—	127.88K	—	—	Jan 28, 2009	127.88K	Acq/Dis	—	Dec 15	View
From 4	-1.00	139.06K	—	—	Jan 02, 2009	18.15M	Disposition	—	Jan 01	View
From 4	—	129.33K	—	—	Dec 17, 2008	18.29M	Acq/Dis	—	Dec 15	View
From 4	—	40.00K	$24.75	$990.00K	Oct 03, 2008	18.16M	Purchase	—	Oct 01	View
From 4	—	20.00K	—	—	Feb 26, 2008	21.19M	Grant	—	Feb 22	View
From 4	-1.00	17.68K	$30.03	-$530.93K	Feb 13, 2008	21.17M	Options	—	Feb 11	View
From 4/A	—	—	—	—	Nov 21, 2007	20.93M	Options	—	Nov 14	View
From 4	—	—	—	—	Nov 16, 2007	20.72M	Options	—	Nov 14	View
From 4	0.04	250.00K	$63.91	$15.98M	Apr 04, 2007	7.27M	Acquisition	—	Apr 02	View
From 4	-1.00	23.52K	$61.76	-$1.45M	Feb 27, 2007	7.06M	Options	—	Feb 26	View
From 4	—	13.00K	—	—	Feb 14, 2007	65.37K	Grant	—	Feb 13	View
From 4/A	-0.01	69.53K	—	—	Jan 12, 2007	10.30M	Options	—	Nov 14 - 01	View
From 4	-0.01	69.53K	—	—	Jan 05, 2007	10.30M	Options	—	Nov 14 - 01	View
From 4	-1.00	3.67K	$52.82	-$193.69K	Feb 28, 2006	5.50M	Options	—	Feb 27	View
From 4	—	10.00K	—	—	Feb 14, 2006	56.03K	Grant	—	Feb 13	View
From 4	—	10.00K	—	—	Feb 14, 2006	56.03K	Grant	—	Feb 13	View
From 4	—	—	—	—	Nov 22, 2005	10.37M	Options	—	Nov 14	View
From 4	-1.00	3.67K	$58.78	-$215.55K	Feb 28, 2005	3.86M	Options	—	Feb 25	View
From 4	—	10.00K	—	—	Feb 16, 2005	49.70K	Grant	—	Feb 14	View
From 4	-0.45	300.00K	$50.00	-$15.00M	Nov 19, 2004	3.81M	Sale	—	Nov 18	View
From 4	-0.08	1.40K	—	—	Jul 02, 2004	4.11M	Grant	—	Jun 29	View
From 4	-1.00	3.67K	$39.60	-$145.21K	Feb 27, 2004	4.15M	Options	—	Feb 25	View
From 4	—	8.84K	—	—	Feb 13, 2004	43.37K	Grant	—	Feb 11	View
From 4	-1.00	3.00K	—	—	Jan 05, 2004	4.11M	Disposition	—	Jan 01	View
From 4/A	—	6.56M	—	—	Dec 05, 2003	6.56M	Acq/Dis	—	Oct 17	View
From 4	0.02	2.51K	$32.87	$82.32K	Nov 18, 2003	4.12M	Purchase	Scheduled	Nov 17	View
From 4	-0.41	24.29K	—	—	Aug 21, 2003	34.53K	Disposition	—	Aug 19	View
From 4	0.03	4.52K	$31.09	$140.58K	Aug 19, 2003	153.72K	Purchase	Scheduled	Aug 15	View
From 4/A	—	—	—	—	Jun 20, 2003	—	—	—	—	View

quintana energy services inc.

Updated: Jul 30, 2020

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	9.70M	—	—	Jul 30, 2020	—	Options	—	Jul 28	View
From 4/A	—	—	—	—	Mar 20, 2020	9.66M	Options	—	Feb 09	View
From 4	—	38.46K	—	—	Feb 19, 2020	38.46K	Grant	—	Feb 14	View
From 4	—	—	—	—	Feb 11, 2020	9.18M	Options	—	Feb 09	View
From 4	0.06	10.20K	$1.95	$19.85K	Sep 17, 2019	9.18M	Purchase	—	Sep 13	View
From 4	0.02	4.11K	$1.83	$7.53K	Sep 16, 2019	9.17M	Purchase	—	Sep 12	View
From 4	0.02	4.20K	$1.83	$7.67K	Sep 13, 2019	9.17M	Purchase	—	Sep 11	View
From 4	0.06	9.57K	$1.69	$16.21K	Sep 12, 2019	9.17M	Purchase	—	Sep 10	View
From 4	0.06	9.32K	$1.71	$15.91K	Sep 11, 2019	9.16M	Purchase	—	Sep 09	View
From 4	0.10	13.90K	$1.73	$24.08K	Sep 09, 2019	9.15M	Purchase	—	Sep 06	View
From 4	0.14	16.73K	$1.62	$27.01K	Sep 06, 2019	9.61M	Purchase	—	Sep 05	View
From 4/A	—	—	—	—	Apr 01, 2019	9.57M	Options	—	Feb 09	View
From 4	—	—	—	—	Feb 12, 2019	9.57M	Purchase	—	Feb 13 - 09	View
From 4	—	23.47K	—	—	Jan 28, 2019	23.47K	Grant	—	Jan 24	View
From 4	—	11.43K	—	—	Apr 20, 2018	11.43K	Grant	—	Apr 18	View
From 4	9556.39	9.56M	$10.00	$1.00M	Feb 15, 2018	9.56M	Purchase	—	Feb 13	View
From 3	—	—	—	—	Feb 08, 2018	1.00K	—	—	—	View

quintana maritime ltd

Updated: Dec 27, 2007

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.59	15.00K	—	—	Dec 27, 2007	5.12M	Grant	—	Dec 26	View
From 4	—	—	$8.00	$5.12M	Feb 13, 2007	5.11M	Options	—	Feb 13	View
From 4	0.65	10.00K	—	—	Dec 20, 2006	4.47M	Grant	—	Dec 18	View
From 4	0.71	1.84M	—	—	Aug 15, 2006	4.46M	Options	—	Aug 11	View
From 4	66.96	803.50K	—	—	May 15, 2006	3.26M	Purchase	—	May 11 - 15	View
From 4	—	—	—	—	Dec 27, 2005	2.45M	Acq/Dis	—	Dec 23	View
From 4	—	12.00K	—	—	Aug 26, 2005	6.33M	Grant	—	Aug 24	View
From 4	0.66	2.50M	—	—	Jul 21, 2005	6.32M	Acquisition	—	Jul 20	View
From 3	—	—	—	—	Jul 14, 2005	3.81M	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions