William R Thomas III

Insider

First SEC filing: June 5, 2026 · Latest: June 5, 2026

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

CSWC buying June 5, 2026

Insider transactions

1 buys (P) 1 sells (S) Net: $8,445 + 41 non-open-market transactions below Avg return of open purchases vs now: 5.8% 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

41 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 10, 2026	CSWC	A	1,989	—	—	20,672 Direct	+10.65%	Acquired	(price as of 2026-08-21)
June 5, 2026	CSWC	P	5,000	$23.40	$117,000	18,683 Direct	+36.54%	Acquired	5.8% (price as of 2026-08-21)
June 5, 2026	CSWC	S	4,661	$23.29	$108,555	13,683 Direct	-25.41%	Disposed	6.3% (price as of 2026-08-21)
Aug. 12, 2025	CSWC	A	2,193	—	—	18,344 Direct	+13.58%	Acquired	(price as of 2026-08-21)
Aug. 9, 2024	CSWC	A	2,090	—	—	16,151 Direct	+14.86%	Acquired	(price as of 2026-08-21)
June 3, 2024	CSWC	P	9,400	$25.87	$243,178	14,061 Direct	+201.67%	Acquired	-4.3% (price as of 2026-08-21)
June 3, 2024	CSWC	G	8,217	—	—	4,661 Direct	-63.81%	Disposed	(price as of 2026-08-21)
Aug. 10, 2023	CSWC	A	2,240	—	—	12,878 Direct	+21.06%	Acquired	(price as of 2026-08-21)
Aug. 10, 2022	CSWC	A	2,421	—	—	10,638 Direct	+29.46%	Acquired	(price as of 2026-08-21)
Sept. 9, 2021	CSWC	P	2,000	$27.72	$55,440	6,000 Indirect	+50.00%	Acquired	-10.7% (price as of 2026-08-21)
Sept. 9, 2021	CSWC	P	2,000	$27.72	$55,440	6,000 Indirect	+50.00%	Acquired	-10.7% (price as of 2026-08-21)
Sept. 9, 2021	CSWC	S	4,000	$27.70	$110,800	0 Indirect	-100.00%	Disposed	-10.6% (price as of 2026-08-21)
May 29, 2015	CSWC	G	2,000	—	—	3,529 Direct	-36.17%	Disposed	(price as of 2026-08-21)
May 29, 2015	CSWC	G	4,000	—	—	5,529 Direct	-41.98%	Disposed	(price as of 2026-08-21)
May 29, 2015	CSWC	G	14,000	—	—	9,529 Direct	-59.50%	Disposed	(price as of 2026-08-21)
Jan. 27, 2015	CSWC	S	120,000	$43.04	$5,164,800	571,939 Indirect	-17.34%	Disposed	56.6% (price as of 2026-08-21)
Dec. 16, 2014	CSWC	G	6,414	—	—	23,529 Direct	-21.42%	Disposed	(price as of 2026-08-21)
Feb. 11, 2014	CSWC	G	1,470	—	—	29,943 Direct	-4.68%	Disposed	(price as of 2026-08-21)
May 30, 2012	CSWC	S	8,090	$86.50	$699,785	6,768 Direct	-54.45%	Disposed	211.8% (price as of 2026-08-21)
May 23, 2012	CSWC	M	6,090	$98.44	$599,500	6,090 Direct	—	Acquired	173.9% (price as of 2026-08-21)
May 23, 2012	CSWC	M	6,090	$98.44	$599,500	14,858 Direct	+69.46%	Acquired	173.9% (price as of 2026-08-21)
May 17, 2012	CSWC	M	2,000	$76.74	$153,480	2,000 Direct	—	Acquired	251.4% (price as of 2026-08-21)
May 17, 2012	CSWC	M	2,000	$76.74	$153,480	8,768 Direct	+29.55%	Acquired	251.4% (price as of 2026-08-21)
Feb. 15, 2012	CSWC	S	2,224	$90.71	$201,739	33,603 Indirect	-6.21%	Disposed	197.3% (price as of 2026-08-21)
Feb. 14, 2012	CSWC	S	7,776	$91.04	$707,927	35,827 Indirect	-17.83%	Disposed	196.2% (price as of 2026-08-21)
Feb. 9, 2012	CSWC	G	1,084	$91.60	$99,294	7,768 Direct	-12.25%	Disposed	194.4% (price as of 2026-08-21)
Jan. 16, 2012	CSWC	A	1,000	—	—	8,852 Direct	+12.74%	Acquired	(price as of 2026-08-21)
Nov. 14, 2011	CSWC	G	285	$85.47	$24,359	7,852 Direct	-3.50%	Disposed	215.5% (price as of 2026-08-21)
Nov. 14, 2011	CSWC	G	1,180	$85.47	$100,855	8,137 Direct	-12.67%	Disposed	215.5% (price as of 2026-08-21)
July 18, 2011	CSWC	A	5,000	$96.92	$484,600	12,500 Direct	+66.67%	Acquired	178.2% (price as of 2026-08-21)
June 17, 2011	CSWC	G	2,638	$94.88	$250,293	9,317 Direct	-22.07%	Disposed	184.2% (price as of 2026-08-21)
June 16, 2011	CSWC	G	12	$94.06	$1,129	3,000 Indirect	+0.40%	Acquired	186.7% (price as of 2026-08-21)
June 16, 2011	CSWC	G	12	$94.06	$1,129	11,955 Direct	-0.10%	Disposed	186.7% (price as of 2026-08-21)
Dec. 21, 2010	CSWC	G	236	$106.94	$25,238	2,988 Indirect	+8.58%	Acquired	152.2% (price as of 2026-08-21)
Dec. 21, 2010	CSWC	G	236	$106.94	$25,238	11,967 Direct	-1.93%	Disposed	152.2% (price as of 2026-08-21)
Dec. 15, 2010	CSWC	G	240	$104.97	$25,193	12,203 Direct	-1.93%	Disposed	156.9% (price as of 2026-08-21)
Aug. 3, 2010	CSWC	S	13,654	$91.55	$1,250,024	44,103 Indirect	-23.64%	Disposed	194.6% (price as of 2026-08-21)
June 3, 2010	CSWC	S	401	$93.02	$37,301	57,757 Indirect	-0.69%	Disposed	189.9% (price as of 2026-08-21)
June 2, 2010	CSWC	S	77	$92.50	$7,122	58,158 Indirect	-0.13%	Disposed	191.5% (price as of 2026-08-21)
Nov. 17, 2009	CSWC	S	10,000	$76.69	$766,900	58,235 Indirect	-14.66%	Disposed	251.6% (price as of 2026-08-21)
Nov. 17, 2009	CSWC	S	10,000	$76.69	$766,900	58,235 Indirect	-14.66%	Disposed	251.6% (price as of 2026-08-21)
Nov. 13, 2009	CSWC	G	18	$76.93	$1,385	12,443 Direct	-0.14%	Disposed	250.5% (price as of 2026-08-21)
Nov. 12, 2009	CSWC	G	1,475	$77.36	$114,106	12,461 Direct	-10.58%	Disposed	248.6% (price as of 2026-08-21)
Oct. 19, 2009	CSWC	A	5,000	$76.74	$383,700	10,000 Direct	+100.00%	Acquired	251.4% (price as of 2026-08-21)
Aug. 27, 2009	CSWC	G	200	$78.23	$15,646	13,936 Direct	-1.41%	Disposed	244.7% (price as of 2026-08-21)
June 8, 2009	CSWC	S	9,390	$72.13	$677,301	14,136 Direct	-39.91%	Disposed	273.9% (price as of 2026-08-21)
June 5, 2009	CSWC	S	1,610	$72.03	$115,968	23,526 Direct	-6.41%	Disposed	274.4% (price as of 2026-08-21)
June 4, 2009	CSWC	S	400	$73.00	$29,200	25,136 Direct	-1.57%	Disposed	269.4% (price as of 2026-08-21)
June 2, 2009	CSWC	S	7,600	$73.96	$562,096	25,536 Direct	-22.94%	Disposed	264.6% (price as of 2026-08-21)
Feb. 20, 2009	CSWC	G	522	$70.72	$36,916	2,752 Indirect	+23.41%	Acquired	281.3% (price as of 2026-08-21)
Feb. 20, 2009	CSWC	G	522	$70.72	$36,916	33,136 Direct	-1.55%	Disposed	281.3% (price as of 2026-08-21)
Dec. 18, 2008	CSWC	G	577	$107.28	$61,901	2,230 Indirect	+34.91%	Acquired	151.4% (price as of 2026-08-21)
Dec. 18, 2008	CSWC	G	577	$107.28	$61,901	33,658 Direct	-1.69%	Disposed	151.4% (price as of 2026-08-21)
Dec. 10, 2008	CSWC	G	2,500	$99.00	$247,500	34,235 Direct	-6.81%	Disposed	172.4% (price as of 2026-08-21)
Dec. 8, 2008	CSWC	G	1,500	$95.74	$143,610	36,735 Direct	-3.92%	Disposed	181.7% (price as of 2026-08-21)
Dec. 3, 2008	CSWC	A	132	$104.99	$13,859	132 Indirect	—	Acquired	156.9% (price as of 2026-08-21)
Nov. 24, 2008	CSWC	W	261	—	—	38,235 Direct	+0.69%	Acquired	(price as of 2026-08-21)
Nov. 12, 2008	CSWC	J	206,525	—	—	206,525 Indirect	—	Acquired	(price as of 2026-08-21)
Nov. 12, 2008	CSWC	J	206,525	—	—	246,152 Indirect	+521.17%	Acquired	(price as of 2026-08-21)
July 21, 2008	CSWC	A	5,000	$118.70	$593,500	5,000 Direct	—	Acquired	127.2% (price as of 2026-08-21)
June 23, 2008	CSWC	P	157	$115.03	$18,060	1,653 Indirect	+10.49%	Acquired	134.4% (price as of 2026-08-21)
June 20, 2008	CSWC	P	43	$115.24	$4,955	1,496 Indirect	+2.96%	Acquired	134.0% (price as of 2026-08-21)
Feb. 14, 2008	CSWC	P	200	$115.00	$23,000	1,453 Indirect	+15.96%	Acquired	134.5% (price as of 2026-08-21)

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
May 23, 2012	CSWC	Incentive Stock Option [F1]	Common Stock (6,090)	$98.44	July 17, 2016	6,090	Acquired
May 17, 2012	CSWC	Non-Qualified Stock Option [F1]	Common Stock (2,000)	$76.74	Oct. 19, 2019	2,000	Acquired
July 18, 2011	CSWC	Incentive Stock Option [F1]	Common Stock	$96.92	July 18, 2021	5,000	Acquired
Oct. 19, 2009	CSWC	Non-qualified Stock Option [F1]	Common Stock	$76.74	Oct. 19, 2019	5,000	Acquired
July 21, 2008	CSWC	Non-qualified Stock Option [F1]	Common Stock	$118.70	July 21, 2018	5,000	Acquired

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

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
Jan. 28, 2014	CSWC	Common Stock	31,413	Direct
Jan. 28, 2014	CSWC	Common Stock	703,939	Indirect
July 21, 2006	CSWC	Common Stock	37,974	Direct
July 21, 2006	CSWC	Incentive stock option [F1]→ Common Stock (7,500)	7,500	Direct