Richard C Vaughan

Insider

First SEC filing: May 13, 2026 · Latest: May 13, 2026

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

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 69 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

69 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 12, 2026	MBI	A	16,181	$6.18	$99,999	103,055 Direct	+18.63%	Acquired	-20.6% (price as of 2026-08-21)
Aug. 11, 2025	MBI	S	25,086	$6.07	$152,272	86,874 Direct	-22.41%	Disposed	-19.2% (price as of 2026-08-21)
May 13, 2025	MBI	A	23,095	$4.33	$100,001	111,960 Direct	+25.99%	Acquired	13.3% (price as of 2026-08-21)
Nov. 20, 2024	MBI	S	3,821	$6.45	$24,645	61,814 Direct	-5.82%	Disposed	-24.0% (price as of 2026-08-21)
Nov. 19, 2024	MBI	S	9,000	$6.59	$59,310	65,635 Direct	-12.06%	Disposed	-25.6% (price as of 2026-08-21)
May 14, 2024	MBI	A	16,502	$6.06	$100,002	101,686 Direct	+19.37%	Acquired	-19.1% (price as of 2026-08-21)
Dec. 28, 2023	MBI	S	3,000	$6.08	$18,240	85,184 Direct	-3.40%	Disposed	-19.3% (price as of 2026-08-21)
Dec. 27, 2023	MBI	S	12,000	$6.31	$75,720	88,184 Direct	-11.98%	Disposed	-22.3% (price as of 2026-08-21)
May 12, 2023	MBI	A	12,821	$7.80	$100,004	100,184 Direct	+14.68%	Acquired	-37.1% (price as of 2026-08-21)
May 12, 2022	MBI	A	8,361	$11.96	$99,998	87,363 Direct	+10.58%	Acquired	-59.0% (price as of 2026-08-21)
May 12, 2022	MBI	A	8,361	$11.96	$99,998	87,363 Direct	+10.58%	Acquired	-59.0% (price as of 2026-08-21)
Aug. 9, 2021	MBI	S	26,399	$11.87	$313,356	79,002 Direct	-25.05%	Disposed	-58.7% (price as of 2026-08-21)
May 13, 2021	MBI	A	11,261	$8.88	$99,998	105,401 Direct	+11.96%	Acquired	-44.8% (price as of 2026-08-21)
March 9, 2021	MBI	S	24,686	$9.45	$233,283	94,140 Direct	-20.77%	Disposed	-48.1% (price as of 2026-08-21)
May 14, 2020	MBI	A	15,949	$6.27	$100,000	118,826 Direct	+15.50%	Acquired	-21.8% (price as of 2026-08-21)
Nov. 13, 2019	MBI	S	4,787	$10.06	$48,157	102,877 Direct	-4.45%	Disposed	-51.2% (price as of 2026-08-21)
Nov. 12, 2019	MBI	S	2,000	$10.10	$20,200	107,664 Direct	-1.82%	Disposed	-51.4% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	476	$10.43	$4,965	109,664 Direct	-0.43%	Disposed	-53.0% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,500	$10.40	$15,600	110,140 Direct	-1.34%	Disposed	-52.8% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	100	$10.38	$1,038	111,640 Direct	-0.09%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,000	$10.38	$10,380	111,740 Direct	-0.89%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,500	$10.38	$15,570	112,740 Direct	-1.31%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,000	$10.37	$10,370	114,240 Direct	-0.87%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,400	$10.37	$14,518	115,240 Direct	-1.20%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,500	$10.36	$15,540	116,640 Direct	-1.27%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	100	$10.36	$1,036	118,140 Direct	-0.08%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	400	$10.36	$4,144	118,240 Direct	-0.34%	Disposed	-52.7% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,000	$10.34	$10,340	118,640 Direct	-0.84%	Disposed	-52.6% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	2,000	$10.25	$20,500	119,640 Direct	-1.64%	Disposed	-52.1% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	1,024	$10.24	$10,486	121,640 Direct	-0.83%	Disposed	-52.1% (price as of 2026-08-21)
Nov. 8, 2019	MBI	S	213	$10.19	$2,170	122,664 Direct	-0.17%	Disposed	-51.9% (price as of 2026-08-21)
May 13, 2019	MBI	A	10,917	$9.16	$100,000	122,877 Direct	+9.75%	Acquired	-46.5% (price as of 2026-08-21)
May 14, 2018	MBI	A	11,287	$8.86	$100,003	111,960 Direct	+11.21%	Acquired	-44.6% (price as of 2026-08-21)
May 15, 2017	MBI	A	12,121	$8.25	$99,998	100,673 Direct	+13.69%	Acquired	-40.5% (price as of 2026-08-21)
Aug. 11, 2016	MBI	S	1,800	$8.21	$14,778	88,552 Direct	-1.99%	Disposed	-40.3% (price as of 2026-08-21)
Aug. 11, 2016	MBI	S	1,000	$8.21	$8,210	90,352 Direct	-1.09%	Disposed	-40.3% (price as of 2026-08-21)
Aug. 11, 2016	MBI	S	200	$8.22	$1,644	91,352 Direct	-0.22%	Disposed	-40.3% (price as of 2026-08-21)
May 12, 2016	MBI	A	13,967	$7.16	$100,004	91,552 Direct	+18.00%	Acquired	-31.5% (price as of 2026-08-21)
May 14, 2015	MBI	A	10,549	$9.48	$100,005	77,585 Direct	+15.74%	Acquired	-48.3% (price as of 2026-08-21)
May 15, 2014	MBI	A	8,584	$11.65	$100,004	67,036 Direct	+14.69%	Acquired	-57.9% (price as of 2026-08-21)
May 14, 2013	MBI	A	6,382	$15.67	$100,006	58,452 Direct	+12.26%	Acquired	-68.7% (price as of 2026-08-21)
May 1, 2012	MBI	A	9,570	$10.45	$100,006	52,070 Direct	+22.52%	Acquired	-53.1% (price as of 2026-08-21)
May 4, 2011	MBI	A	10,450	$9.57	$100,006	42,500 Direct	+32.61%	Acquired	-48.7% (price as of 2026-08-21)
May 13, 2010	DVA	A	126	—	—	6,092 Direct	+2.11%	Acquired	(price as of 2026-08-21)
May 4, 2010	MBI	A	7,772	$9.65	$75,000	32,050 Direct	+32.01%	Acquired	-49.2% (price as of 2026-08-21)
March 31, 2010	DVA	A	87	—	—	5,966 Direct	+1.48%	Acquired	(price as of 2026-08-21)
March 11, 2010	DVA	A	128	—	—	5,879 Direct	+2.23%	Acquired	(price as of 2026-08-21)
March 10, 2010	DVA	A	66	—	—	5,751 Direct	+1.16%	Acquired	(price as of 2026-08-21)
March 3, 2010	DVA	M	18,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 3, 2010	DVA	M	18,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 3, 2010	DVA	S	4,000	$63.27	$253,080	5,685 Direct	-41.30%	Disposed	454.8% (price as of 2026-08-21)
March 3, 2010	DVA	S	18,000	$63.21	$1,137,780	9,685 Direct	-65.02%	Disposed	455.4% (price as of 2026-08-21)
March 3, 2010	DVA	M	18,000	$55.05	$990,900	27,685 Direct	+185.85%	Acquired	537.7% (price as of 2026-08-21)
March 3, 2010	DVA	S	18,000	$63.28	$1,139,040	9,685 Direct	-65.02%	Disposed	454.7% (price as of 2026-08-21)
March 3, 2010	DVA	M	18,000	$51.95	$935,100	27,685 Direct	+185.85%	Acquired	575.7% (price as of 2026-08-21)
Dec. 31, 2009	DVA	A	94	—	—	9,685 Direct	+0.98%	Acquired	(price as of 2026-08-21)
Dec. 4, 2009	DVA	A	133	—	—	9,591 Direct	+1.41%	Acquired	(price as of 2026-08-21)
Dec. 3, 2009	DVA	A	66	—	—	9,458 Direct	+0.70%	Acquired	(price as of 2026-08-21)
Oct. 8, 2009	DVA	A	142	—	—	9,392 Direct	+1.54%	Acquired	(price as of 2026-08-21)
Oct. 7, 2009	DVA	A	71	—	—	9,250 Direct	+0.77%	Acquired	(price as of 2026-08-21)
Sept. 30, 2009	DVA	A	97	—	—	9,179 Direct	+1.07%	Acquired	(price as of 2026-08-21)
July 16, 2009	DVA	A	163	—	—	9,082 Direct	+1.83%	Acquired	(price as of 2026-08-21)
July 15, 2009	DVA	A	81	—	—	8,919 Direct	+0.92%	Acquired	(price as of 2026-08-21)
June 30, 2009	DVA	A	111	—	—	8,838 Direct	+1.27%	Acquired	(price as of 2026-08-21)
June 18, 2009	DVA	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 18, 2009	DVA	S	15,000	$48.81	$732,150	8,727 Direct	-63.22%	Disposed	619.2% (price as of 2026-08-21)
June 18, 2009	DVA	M	15,000	$43.50	$652,500	23,727 Direct	+171.88%	Acquired	707.0% (price as of 2026-08-21)
June 15, 2009	DVA	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-21)
June 15, 2009	DVA	A	1,500	—	—	8,727 Direct	+20.76%	Acquired	(price as of 2026-08-21)
May 7, 2009	MBI	A	11,737	$6.39	$74,999	24,278 Direct	+93.59%	Acquired	-23.2% (price as of 2026-08-21)
April 30, 2009	DVA	A	173	—	—	7,227 Direct	+2.45%	Acquired	(price as of 2026-08-21)
March 31, 2009	DVA	A	125	—	—	7,054 Direct	+1.80%	Acquired	(price as of 2026-08-21)
Feb. 26, 2009	DVA	A	160	—	—	6,929 Direct	+2.36%	Acquired	(price as of 2026-08-21)
Feb. 25, 2009	DVA	A	79	—	—	6,769 Direct	+1.18%	Acquired	(price as of 2026-08-21)
Dec. 31, 2008	DVA	A	111	—	—	6,690 Direct	+1.69%	Acquired	(price as of 2026-08-21)
Dec. 11, 2008	DVA	A	167	—	—	6,579 Direct	+2.60%	Acquired	(price as of 2026-08-21)
Dec. 10, 2008	DVA	A	83	—	—	6,412 Direct	+1.31%	Acquired	(price as of 2026-08-21)
Oct. 9, 2008	DVA	A	167	—	—	6,329 Direct	+2.71%	Acquired	(price as of 2026-08-21)
Oct. 8, 2008	DVA	A	79	—	—	6,162 Direct	+1.30%	Acquired	(price as of 2026-08-21)
Sept. 30, 2008	DVA	A	96	—	—	6,083 Direct	+1.60%	Acquired	(price as of 2026-08-21)
July 17, 2008	DVA	A	151	—	—	5,987 Direct	+2.59%	Acquired	(price as of 2026-08-21)
July 16, 2008	DVA	A	75	—	—	5,836 Direct	+1.30%	Acquired	(price as of 2026-08-21)
June 30, 2008	DVA	A	104	—	—	5,761 Direct	+1.84%	Acquired	(price as of 2026-08-21)
June 9, 2008	DVA	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-21)
June 9, 2008	DVA	A	1,500	—	—	5,657 Direct	+36.08%	Acquired	(price as of 2026-08-21)
May 15, 2008	MBI	A	8,065	$9.30	$75,004	12,541 Direct	+180.18%	Acquired	-47.3% (price as of 2026-08-21)
March 31, 2008	DVA	A	115	—	—	4,157 Direct	+2.85%	Acquired	(price as of 2026-08-21)
Dec. 31, 2007	DVA	A	98	—	—	4,042 Direct	+2.48%	Acquired	(price as of 2026-08-21)
Nov. 5, 2007	MBI	P	2,000	$33.34	$66,680	4,476 Direct	+80.78%	Acquired	-85.3% (price as of 2026-08-21)
Sept. 30, 2007	DVA	A	87	—	—	3,944 Direct	+2.26%	Acquired	(price as of 2026-08-21)
Aug. 3, 2007	MBI	A	1,476	$50.83	$75,025	2,476 Direct	+147.60%	Acquired	-90.4% (price as of 2026-08-21)
June 30, 2007	DVA	A	102	—	—	3,857 Direct	+2.72%	Acquired	(price as of 2026-08-21)
May 29, 2007	DVA	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-21)
May 29, 2007	DVA	A	1,500	—	—	3,755 Direct	+66.52%	Acquired	(price as of 2026-08-21)
March 31, 2007	DVA	A	103	—	—	2,255 Direct	+4.79%	Acquired	(price as of 2026-08-21)
Dec. 31, 2006	DVA	A	97	—	—	2,152 Direct	+4.72%	Acquired	(price as of 2026-08-21)
Sept. 30, 2006	DVA	A	95	—	—	2,055 Direct	+4.85%	Acquired	(price as of 2026-08-21)
June 30, 2006	DVA	A	111	—	—	1,960 Direct	+6.00%	Acquired	(price as of 2026-08-21)
May 15, 2006	DVA	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-21)
May 15, 2006	DVA	A	1,500	—	—	1,849 Direct	+429.80%	Acquired	(price as of 2026-08-21)

Showing latest 100 of 145 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
March 3, 2010	DVA	Stock Options (Right to Buy)	Common Stock (18,000)	$55.05	May 29, 2012	18,000	Disposed
March 3, 2010	DVA	Stock Options (Right to Buy)	Common Stock (18,000)	$51.95	May 15, 2011	18,000	Disposed
June 18, 2009	DVA	Stock Options (Right to Buy)	Common Stock (15,000)	$43.50	May 20, 2010	15,000	Disposed
June 15, 2009	DVA	Stock Appreciation Right	Common Stock (18,000)	$45.84	June 15, 2014	18,000	Acquired
June 9, 2008	DVA	Stock Appreciation Rights	Common Stock (18,000)	$49.78	June 9, 2013	18,000	Acquired
May 29, 2007	DVA	Stock Options (Right to Buy)	Common Stock (18,000)	$55.05	May 29, 2012	18,000	Acquired
May 15, 2006	DVA	Stock Options (Right to Buy)	Coommon Stock (18,000)	$51.95	May 15, 2011	18,000	Acquired
May 20, 2005	DVA	Stock Options (Right to Buy)	Common Stock (15,000)	$43.50	May 20, 2010	15,000	Acquired
Nov. 29, 2004	LNC	Employee Stock Option (Right to Buy)	Common Stock (29,000)	$22.69	May 8, 2006	29,000	Disposed
Nov. 29, 2004	LNC	Employee Stock Option (Right to Buy)	Common Stock (29,000)	$22.69	May 8, 2006	29,000	Disposed
March 31, 2004	LNC	Phantom Stock [F1]	Common Stock (909)	—	—	909	Acquired
March 11, 2004	LNC	Stock Option (Right to Buy) [F3]	Common Stock (66,563)	$47.58	March 11, 2014	66,563	Acquired
March 11, 2004	LNC	Phantom Performance Stock Unit Award [F1]	Common Stock (17,867)	$47.58	—	17,867	Acquired
Feb. 19, 2004	LNC	Stock Option (Right to Buy)	Common Stock (24,000)	$21.32	May 10, 2005	24,000	Disposed
Dec. 1, 2003	LNC	Stock Option (Right To Buy)	Common Stock (20,000)	$19.72	May 11, 2004	20,000	Disposed

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
Aug. 6, 2007	MBI	Common Stock	1,000	Direct