Michael R Gambrell

Insider

First SEC filing: March 3, 2011 · Latest: March 3, 2011

On this page

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

CSW buying Aug. 19, 2016

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 96 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

96 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 5, 2025	CSW	G	3,800	—	—	22,113 Direct	-14.66%	Disposed	(price as of 2026-08-20)
Aug. 19, 2016	CSW	P	100	$31.12	$3,112	9,535 Direct	+1.06%	Acquired	937.7% (price as of 2026-08-20)
Aug. 19, 2016	CSW	P	3,400	$31.23	$106,182	12,935 Direct	+35.66%	Acquired	934.1% (price as of 2026-08-20)
Feb. 19, 2016	CSW	P	7,000	$29.31	$205,170	7,000 Direct	—	Acquired	1001.8% (price as of 2026-08-20)
Oct. 1, 2015	CSW	A	2,435	—	—	2,435 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2011	29915	F	6,684	$36.83	$246,172	136,988 Direct	-4.65%	Disposed
Feb. 15, 2011	29915	F	8,408	$37.96	$319,168	143,672 Direct	-5.53%	Disposed
Feb. 11, 2011	29915	A	21,500	—	—	152,805 Direct	+16.37%	Acquired
Feb. 11, 2011	29915	J	725	—	—	152,080 Direct	-0.47%	Disposed
Feb. 11, 2011	29915	J	725	—	—	93,483 Indirect	+0.78%	Acquired
Feb. 11, 2011	29915	A	123,720	—	—	123,720 Direct	—	Acquired
Feb. 7, 2011	29915	M	13,300	—	—	0 Direct	-100.00%	Disposed
Feb. 7, 2011	29915	F	12,220	$36.94	$451,407	131,305 Direct	-8.51%	Disposed
Feb. 7, 2011	29915	F	355	$36.94	$13,114	143,525 Direct	-0.25%	Disposed
Feb. 7, 2011	29915	M	13,300	$33.94	$451,402	143,880 Direct	+10.19%	Acquired
Nov. 30, 2010	29915	J	30	—	—	30 Indirect	—	Acquired
Nov. 30, 2010	29915	G	1,600	—	—	92,758 Indirect	-1.70%	Disposed
Nov. 30, 2010	29915	J	300	—	—	94,358 Indirect	-0.32%	Disposed
Nov. 30, 2010	29915	J	94,658	—	—	94,658 Indirect	—	Acquired
Nov. 30, 2010	29915	J	30	—	—	0 Indirect	-100.00%	Disposed
Nov. 30, 2010	29915	J	150	—	—	359 Indirect	+71.77%	Acquired
Nov. 30, 2010	29915	J	150	—	—	729 Indirect	+25.91%	Acquired
Nov. 30, 2010	29915	J	94,658	—	—	130,580 Direct	-42.03%	Disposed
Feb. 18, 2010	29915	F	3,370	$29.12	$98,134	220,519 Direct	-1.51%	Disposed
Feb. 18, 2010	29915	M	10,940	—	—	223,889 Direct	+5.14%	Acquired
Feb. 18, 2010	29915	M	10,940	—	—	0 Direct	-100.00%	Disposed
Feb. 12, 2010	29915	A	195,400	—	—	195,400 Direct	—	Acquired
Feb. 12, 2010	29915	A	32,300	—	—	212,949 Direct	+17.88%	Acquired
Dec. 7, 2009	29915	J	100	—	—	205 Indirect	+95.24%	Acquired
Dec. 7, 2009	29915	J	100	—	—	568 Indirect	+21.37%	Acquired
Dec. 7, 2009	29915	G	1,100	—	—	180,649 Direct	-0.61%	Disposed
Dec. 7, 2009	29915	J	200	—	—	181,749 Direct	-0.11%	Disposed
Feb. 13, 2009	29915	A	193,080	—	—	193,080 Direct	—	Acquired
Feb. 13, 2009	29915	M	11,120	—	—	0 Direct	-100.00%	Disposed
Feb. 13, 2009	29915	F	3,425	$9.78	$33,496	180,069 Direct	-1.87%	Disposed
Feb. 13, 2009	29915	M	11,120	—	—	183,494 Direct	+6.45%	Acquired
Feb. 13, 2009	29915	A	29,490	—	—	172,374 Direct	+20.64%	Acquired
Dec. 24, 2008	29915	J	500	—	—	629 Indirect	+387.60%	Acquired
Dec. 24, 2008	29915	J	100	—	—	100 Indirect	—	Acquired
Dec. 24, 2008	29915	J	100	—	—	441 Indirect	+29.33%	Acquired
Dec. 24, 2008	29915	J	700	—	—	142,884 Direct	-0.49%	Disposed
Dec. 24, 2008	29915	G	500	—	—	143,584 Direct	-0.35%	Disposed
April 17, 2008	29915	M	15,698	—	—	0 Direct	-100.00%	Disposed
April 17, 2008	29915	D	15,698	$39.43	$618,972	144,084 Direct	-9.82%	Disposed
April 17, 2008	29915	F	3,051	$39.26	$119,782	159,782 Direct	-1.87%	Disposed
April 17, 2008	29915	M	15,698	—	—	162,833 Direct	+10.67%	Acquired
April 16, 2008	29915	M	20,139	—	—	15,698 Direct	-56.20%	Disposed
April 16, 2008	29915	D	20,139	$39.43	$794,081	147,135 Direct	-12.04%	Disposed
April 16, 2008	29915	F	2,790	$38.92	$108,587	167,274 Direct	-1.64%	Disposed
April 16, 2008	29915	M	20,139	—	—	170,064 Direct	+13.43%	Acquired
Feb. 15, 2008	29915	A	232,000	—	—	232,000 Direct	—	Acquired
Feb. 15, 2008	29915	A	26,690	—	—	149,925 Direct	+21.66%	Acquired
Jan. 29, 2008	29915	A	15,698	—	—	35,837 Direct	+77.95%	Acquired
Jan. 29, 2008	29915	A	20,139	—	—	20,139 Direct	—	Acquired
Jan. 4, 2008	29915	G	500	—	—	123,235 Direct	-0.40%	Disposed
Dec. 19, 2007	29915	G	147	—	—	123,935 Direct	-0.12%	Disposed
July 18, 2007	29915	G	222	—	—	121,939 Direct	-0.18%	Disposed
April 17, 2007	29915	F	3,017	$45.62	$137,636	122,161 Direct	-2.41%	Disposed
April 16, 2007	29915	F	4,621	$45.78	$211,549	125,178 Direct	-3.56%	Disposed
April 16, 2007	29915	F	2,759	$45.78	$126,307	129,799 Direct	-2.08%	Disposed
April 16, 2007	29915	F	913	$45.78	$41,797	132,558 Direct	-0.68%	Disposed
April 2, 2007	29915	A	13,673	—	—	133,471 Direct	+11.41%	Acquired
April 2, 2007	29915	A	14,953	—	—	119,798 Direct	+14.26%	Acquired
Feb. 27, 2007	29915	M	30,000	—	—	9,000 Direct	-76.92%	Disposed
Feb. 27, 2007	29915	F	23,486	$46.01	$1,080,591	104,845 Direct	-18.30%	Disposed
Feb. 27, 2007	29915	F	1,977	$46.01	$90,962	128,331 Direct	-1.52%	Disposed
Feb. 27, 2007	29915	M	30,000	$36.02	$1,080,600	130,308 Direct	+29.91%	Acquired
Feb. 16, 2007	29915	A	25,200	—	—	100,308 Direct	+33.55%	Acquired
Feb. 16, 2007	29915	A	196,000	—	—	196,000 Direct	—	Acquired
Oct. 18, 2006	29915	G	144	—	—	73,440 Direct	-0.20%	Disposed
Aug. 15, 2006	29915	G	271	—	—	73,584 Direct	-0.37%	Disposed
Aug. 4, 2006	29915	P	10,000	$36.20	$362,000	73,855 Direct	+15.66%	Acquired
April 17, 2006	29915	F	4,621	$40.06	$185,117	63,787 Direct	-6.76%	Disposed
April 17, 2006	29915	F	913	$40.06	$36,575	68,408 Direct	-1.32%	Disposed
March 14, 2006	29915	M	10,000	—	—	0 Direct	-100.00%	Disposed
March 14, 2006	29915	F	3,410	$42.98	$146,562	69,321 Direct	-4.69%	Disposed
March 14, 2006	29915	M	10,000	—	—	72,731 Direct	+15.94%	Acquired
March 1, 2006	29915	A	16,380	—	—	62,731 Direct	+35.34%	Acquired
March 1, 2006	29915	A	134,850	—	—	134,850 Direct	—	Acquired
Feb. 8, 2006	29915	A	22,900	—	—	46,351 Direct	+97.65%	Acquired
Feb. 8, 2006	29915	A	4,522	—	—	23,451 Direct	+23.89%	Acquired
Dec. 5, 2005	29915	J	76	—	—	232 Indirect	+48.72%	Acquired
Dec. 5, 2005	29915	J	76	—	—	18,922 Direct	-0.40%	Disposed
Dec. 5, 2005	29915	G	372	—	—	19,294 Direct	-1.89%	Disposed
May 2, 2005	29915	G	200	—	—	18,325 Direct	-1.08%	Disposed
March 9, 2005	29915	G	60	—	—	153 Indirect	+64.52%	Acquired
March 9, 2005	29915	G	60	—	—	17,447 Direct	-0.34%	Disposed
Feb. 18, 2005	29915	A	10,940	—	—	10,940 Direct	—	Acquired
Feb. 18, 2005	29915	A	41,670	—	—	41,670 Direct	—	Acquired
Jan. 26, 2005	29915	A	825	—	—	17,506 Direct	+4.95%	Acquired
Nov. 15, 2004	29915	M	9,000	$31.10	$279,900	23,389 Direct	+62.55%	Acquired
Nov. 15, 2004	29915	F	5,709	$49.03	$279,912	17,680 Direct	-24.41%	Disposed
Nov. 15, 2004	29915	F	999	$49.03	$48,981	16,681 Direct	-5.65%	Disposed
Nov. 15, 2004	29915	M	9,000	—	—	0 Direct	-100.00%	Disposed
Nov. 12, 2004	29915	F	981	$48.52	$47,598	14,388,578 Direct	-0.01%	Disposed
Nov. 12, 2004	29915	M	9,000	—	—	9,000 Direct	-50.00%	Disposed
Nov. 12, 2004	29915	F	5,770	$48.52	$279,960	15,370 Direct	-27.29%	Disposed
Nov. 12, 2004	29915	M	9,000	$31.10	$279,900	21,140 Direct	+74.14%	Acquired
Nov. 10, 2004	29915	M	14,000	$30.52	$427,280	19,408 Direct	+258.88%	Acquired
Nov. 10, 2004	29915	F	8,892	$48.04	$427,172	10,516 Direct	-45.82%	Disposed

Showing latest 100 of 111 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
Feb. 11, 2011	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (123,720)	$38.38	Feb. 11, 2021	123,720	Acquired
Feb. 7, 2011	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (13,300)	$33.94	March 2, 2011	13,300	Disposed
Feb. 18, 2010	29915	Deferred Stock	Common (10,940)	—	Feb. 18, 2010	10,940	Disposed
Feb. 12, 2010	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (195,400)	$27.79	Feb. 12, 2020	195,400	Acquired
Feb. 13, 2009	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (193,080)	$9.53	Feb. 13, 2019	193,080	Acquired
Feb. 13, 2009	29915	Deferred Stock [F1]	Common (11,120)	$0.00	Feb. 13, 2009	11,120	Disposed
April 17, 2008	29915	Employee Deferred Stock - Performance Shares [F3]	Common (15,698)	—	—	15,698	Disposed
April 16, 2008	29915	Employee Deferred Stock - Performance Shares [F3]	Common (20,139)	—	—	20,139	Disposed
Feb. 15, 2008	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (232,000)	$38.62	Feb. 15, 2018	232,000	Acquired
Jan. 29, 2008	29915	Employee Deferred Stock - Performance Shares [F1]	Common (15,698)	—	—	15,698	Acquired
Jan. 29, 2008	29915	Employee Deferred Stock - Performance Shares [F1]	Common (20,139)	—	—	20,139	Acquired
Feb. 27, 2007	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (30,000)	$36.02	Feb. 16, 2010	30,000	Disposed
Feb. 16, 2007	29915	Non-Qualified Stock Option (right to buy) [F1]	Common (196,000)	$43.59	Feb. 16, 2017	196,000	Acquired
March 14, 2006	29915	Deferred Stock [F1]	Common Stock (10,000)	$0.00	March 14, 2006	10,000	Disposed
March 1, 2006	29915	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (134,850)	$43.68	March 1, 2016	134,850	Acquired
Feb. 18, 2005	29915	Deferred Stock [F1]	Common Stock (10,940)	—	Feb. 18, 2010	10,940	Acquired
Feb. 18, 2005	29915	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (41,670)	$53.52	Feb. 18, 2015	41,670	Acquired
Nov. 15, 2004	29915	Non-qualified Stock Option (right to buy) [F1]	Common Stock (9,000)	$31.10	Feb. 16, 2009	9,000	Disposed
Nov. 12, 2004	29915	Non-Qualified StockOption (right to buy) [F1]	Common Stock (9,000)	$31.10	Feb. 16, 2009	9,000	Disposed
Nov. 11, 2004	29915	Non-Qualified Stock Option (right to buy) [F1]	Common stock (13,000)	$30.52	Feb. 27, 2008	13,000	Disposed
Nov. 10, 2004	29915	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (14,000)	$30.52	Feb. 27, 2008	14,000	Disposed
Feb. 13, 2004	29915	Deferred Stock [F1]	Common Stock (11,120)	—	Feb. 13, 2009	11,120	Acquired
Feb. 13, 2004	29915	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (33,340)	$43.49	Feb. 13, 2014	33,340	Acquired

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

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Sept. 14, 2015	CSW	Common Stock	0	Direct