Robert C Cox — SEC Insider Profile, Roles & Companies

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 86 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

86 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 6, 2022	MKL	F	347	$1315.34	$456,423	2,346 Direct	-12.89%	Disposed	32.1% (price as of 2026-10-02)
Feb. 15, 2022	MKL	A	669	·	·	2,682 Direct	+33.23%	Acquired	(price as of 2026-10-02)
Dec. 7, 2021	MKL	F	184	$1249.50	$229,908	2,013 Direct	-8.38%	Disposed	39.0% (price as of 2026-10-02)
Sept. 5, 2021	MKL	F	142	$1255.66	$178,304	2,197 Direct	-6.07%	Disposed	38.3% (price as of 2026-10-02)
Feb. 16, 2021	MKL	A	728	·	·	2,339 Direct	+45.19%	Acquired	(price as of 2026-10-02)
Feb. 16, 2021	MKL	A	756	·	·	2,367 Direct	+46.93%	Acquired	(price as of 2026-10-02)
Sept. 4, 2020	MKL	F	137	$1068.62	$146,401	1,611 Direct	-7.84%	Disposed	62.6% (price as of 2026-10-02)
Feb. 18, 2020	MKL	A	678	·	·	1,748 Direct	+63.36%	Acquired	(price as of 2026-10-02)
Sept. 5, 2019	MKL	F	119	$1152.89	$137,194	1,070 Direct	-10.01%	Disposed	50.7% (price as of 2026-10-02)
Feb. 19, 2019	MKL	A	358	$1016.87	$364,039	1,189 Direct	+43.08%	Acquired	70.8% (price as of 2026-10-02)
Feb. 19, 2019	MKL	A	311	$1016.87	$316,247	1,142 Direct	+37.42%	Acquired	70.8% (price as of 2026-10-02)
Sept. 5, 2018	MKL	A	831	·	·	831 Direct	·	Acquired	(price as of 2026-10-02)
Jan. 14, 2016	20171	D	1,376	·	·	0 Indirect	-100.00%	Disposed
Jan. 14, 2016	20171	D	4,944	·	·	0 Direct	-100.00%	Disposed
Jan. 14, 2016	20171	D	2,278	·	·	0 Indirect	-100.00%	Disposed
Jan. 14, 2016	20171	D	22,024	·	·	0 Direct	-100.00%	Disposed
Dec. 31, 2015	20171	M	3,343	·	·	4,944 Direct	-40.34%	Disposed
Dec. 31, 2015	20171	F	1,637	$133.00	$217,721	22,024 Direct	-6.92%	Disposed
Dec. 31, 2015	20171	M	3,343	$133.00	$444,619	23,661 Direct	+16.45%	Acquired
Dec. 17, 2015	20171	A	381	$131.01	$49,915	1,376 Indirect	+38.29%	Acquired
Dec. 17, 2015	20171	A	1,049	$131.01	$137,429	8,287 Direct	+14.49%	Acquired
Dec. 17, 2015	20171	F	1,954	$131.66	$257,264	20,318 Direct	-8.77%	Disposed
Dec. 17, 2015	20171	M	5,525	$131.66	$727,422	22,272 Direct	+32.99%	Acquired
Dec. 16, 2015	20171	S	6,093	$131.42	$800,742	16,747 Direct	-26.68%	Disposed
Feb. 25, 2015	20171	A	399	$100.12	$39,948	995 Indirect	+66.95%	Acquired
Feb. 25, 2015	20171	A	1,373	$100.12	$137,465	7,238 Direct	+23.41%	Acquired
Feb. 22, 2015	20171	M	233	·	·	596 Indirect	-28.11%	Disposed
Feb. 22, 2015	20171	M	1,567	·	·	5,865 Direct	-21.08%	Disposed
Feb. 22, 2015	20171	F	98	$100.20	$9,820	2,278 Indirect	-4.12%	Disposed
Feb. 22, 2015	20171	M	233	$100.20	$23,347	2,376 Indirect	+10.87%	Acquired
Feb. 22, 2015	20171	F	545	$100.20	$54,609	22,840 Direct	-2.33%	Disposed
Feb. 22, 2015	20171	M	1,567	$100.20	$157,013	23,385 Direct	+7.18%	Acquired
Feb. 9, 2015	20171	F	618	$100.26	$61,961	21,818 Direct	-2.75%	Disposed
Feb. 9, 2015	20171	M	1,655	$100.26	$165,930	22,436 Direct	+7.96%	Acquired
June 5, 2014	20171	S	1,640	$93.36	$153,110	20,781 Direct	-7.31%	Disposed
Feb. 26, 2014	20171	A	1,241	$86.58	$107,446	7,432 Direct	+20.05%	Acquired
Feb. 23, 2014	20171	M	1,939	·	·	6,191 Direct	-23.85%	Disposed
Feb. 23, 2014	20171	F	705	$86.91	$61,272	22,421 Direct	-3.05%	Disposed
Feb. 23, 2014	20171	M	1,939	$86.91	$168,518	23,126 Direct	+9.15%	Acquired
Feb. 10, 2014	20171	F	2,858	$84.51	$241,530	21,187 Direct	-11.89%	Disposed
Feb. 10, 2014	20171	M	7,717	$84.51	$652,164	24,045 Direct	+47.26%	Acquired
Dec. 31, 2013	20171	M	3,344	·	·	8,130 Direct	-29.14%	Disposed
Dec. 31, 2013	20171	F	1,704	$96.54	$164,504	16,328 Direct	-9.45%	Disposed
Dec. 31, 2013	20171	M	3,344	$96.54	$322,830	18,032 Direct	+22.77%	Acquired
March 7, 2013	20171	S	5,000	$85.61	$428,050	14,688 Direct	-25.40%	Disposed
Feb. 27, 2013	20171	A	1,281	$83.88	$107,450	11,474 Direct	+12.57%	Acquired
Feb. 24, 2013	20171	M	2,304	·	·	10,193 Direct	-18.44%	Disposed
Feb. 24, 2013	20171	F	976	$84.51	$82,482	19,688 Direct	-4.72%	Disposed
Feb. 24, 2013	20171	M	2,304	$84.51	$194,711	20,664 Direct	+12.55%	Acquired
Feb. 4, 2013	20171	F	3,956	$82.48	$326,291	18,360 Direct	-17.73%	Disposed
Feb. 4, 2013	20171	M	10,728	$82.48	$884,845	22,316 Direct	+92.58%	Acquired
Dec. 20, 2012	20171	S	5,000	$75.72	$378,600	11,588 Direct	-30.14%	Disposed
Sept. 17, 2012	20171	S	6,500	$76.18	$495,170	16,588 Direct	-28.15%	Disposed
Feb. 25, 2012	20171	M	2,910	·	·	0 Direct	-100.00%	Disposed
Feb. 25, 2012	20171	F	1,032	$68.83	$71,033	23,088 Direct	-4.28%	Disposed
Feb. 25, 2012	20171	M	2,910	$68.83	$200,295	24,120 Direct	+13.72%	Acquired
Feb. 22, 2012	20171	A	1,567	$68.58	$107,465	12,497 Direct	+14.34%	Acquired
Feb. 7, 2012	20171	F	2,746	$68.27	$187,469	21,210 Direct	-11.46%	Disposed
Feb. 7, 2012	20171	M	7,633	$68.27	$521,105	23,956 Direct	+46.76%	Acquired
Oct. 27, 2011	20171	S	1,440	$69.31	$99,806	16,323 Direct	-8.11%	Disposed
Oct. 25, 2011	20171	S	4,000	$68.11	$272,440	17,763 Direct	-18.38%	Disposed
March 12, 2011	20171	M	2,231	·	·	0 Direct	-100.00%	Disposed
March 12, 2011	20171	F	791	$58.63	$46,376	21,763 Direct	-3.51%	Disposed
March 12, 2011	20171	M	2,231	$58.63	$130,804	22,554 Direct	+10.98%	Acquired
March 1, 2011	20171	S	6,496	$60.60	$393,658	20,323 Direct	-24.22%	Disposed
Feb. 23, 2011	20171	A	1,939	$60.57	$117,445	4,243 Direct	+84.16%	Acquired
Feb. 8, 2011	20171	M	10,136	$58.80	$595,997	30,459 Direct	+49.87%	Acquired
Feb. 8, 2011	20171	F	3,640	$58.80	$214,032	26,819 Direct	-11.95%	Disposed
Dec. 31, 2010	20171	A	6,687	$59.81	$399,949	8,991 Direct	+290.23%	Acquired
Oct. 26, 2010	20171	M	6,608	·	·	0 Direct	-100.00%	Disposed
Oct. 26, 2010	20171	M	6,606	·	·	0 Direct	-100.00%	Disposed
Oct. 26, 2010	20171	S	13,214	$58.55	$773,680	20,323 Direct	-39.40%	Disposed
Oct. 26, 2010	20171	M	6,606	$36.84	$243,365	33,537 Direct	+24.53%	Acquired
Oct. 26, 2010	20171	M	6,608	$36.84	$243,439	26,931 Direct	+32.51%	Acquired
April 26, 2010	20171	S	4,500	$53.55	$240,975	20,323 Direct	-18.13%	Disposed
April 26, 2010	20171	S	800	$53.56	$42,848	24,823 Direct	-3.12%	Disposed
April 26, 2010	20171	S	700	$53.56	$37,492	25,623 Direct	-2.66%	Disposed
March 1, 2010	20171	M	1,938	·	·	0 Direct	-100.00%	Disposed
March 1, 2010	20171	F	688	$50.86	$34,992	26,323 Direct	-2.55%	Disposed
March 1, 2010	20171	M	1,938	$50.86	$98,567	27,011 Direct	+7.73%	Acquired
Feb. 24, 2010	20171	A	2,304	$50.99	$117,481	2,304 Direct	·	Acquired
Feb. 9, 2010	20171	F	2,785	$48.36	$134,683	25,073 Direct	-10.00%	Disposed
Feb. 9, 2010	20171	M	7,687	$48.36	$371,743	27,858 Direct	+38.11%	Acquired
March 2, 2009	20171	M	2,046	·	·	0 Direct	-100.00%	Disposed
March 2, 2009	20171	F	685	$39.46	$27,030	20,171 Direct	-3.28%	Disposed
March 2, 2009	20171	M	2,046	$39.46	$80,735	20,856 Direct	+10.88%	Acquired
Feb. 25, 2009	20171	A	2,910	$40.36	$117,448	2,910 Direct	·	Acquired
Feb. 10, 2009	20171	M	10,355	$41.76	$432,425	22,347 Direct	+86.35%	Acquired
Feb. 10, 2009	20171	F	3,537	$41.76	$147,705	18,810 Direct	-15.83%	Disposed
April 30, 2008	20171	S	7,331	$53.47	$391,989	11,992 Direct	-37.94%	Disposed
March 12, 2008	20171	A	2,231	$50.41	$112,465	2,231 Direct	·	Acquired
March 3, 2008	20171	M	2,246	$50.18	$112,704	20,299 Direct	+12.44%	Acquired
March 3, 2008	20171	F	976	$50.18	$48,976	19,323 Direct	-4.81%	Disposed
March 3, 2008	20171	M	2,246	·	·	0 Direct	-100.00%	Disposed
Feb. 6, 2008	20171	M	13,488	·	·	0 Direct	-100.00%	Disposed
Feb. 6, 2008	20171	F	3,151	$52.40	$165,112	18,053 Direct	-14.86%	Disposed
Feb. 6, 2008	20171	M	9,212	$52.40	$482,709	21,204 Direct	+76.82%	Acquired
Feb. 5, 2008	20171	M	9,546	$23.03	$219,844	0 Direct	-100.00%	Disposed
Feb. 5, 2008	20171	M	9,546	$23.03	$219,844	0 Direct	-100.00%	Disposed
Feb. 5, 2008	20171	S	200	$52.05	$10,410	11,992 Direct	-1.64%	Disposed

Showing latest 100 of 216 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
Jan. 14, 2016	20171	RESTRICTED STOCK UNITS	Common Shares (1,376)	·	·	1,376	Disposed
Jan. 14, 2016	20171	RESTRICTED STOCK UNITS	Common Shares (4,944)	·	·	4,944	Disposed
Dec. 31, 2015	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (3,343)	·	·	3,343	Disposed
Dec. 17, 2015	20171	RESTRICTED STOCK UNITS [F2]	Common Shares (381)	·	·	381	Acquired
Dec. 17, 2015	20171	RESTRICTED STOCK UNITS [F2]	Common Shares (1,049)	·	·	1,049	Acquired
Feb. 25, 2015	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (399)	·	·	399	Acquired
Feb. 25, 2015	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,373)	·	·	1,373	Acquired
Feb. 22, 2015	20171	RESTRICTED STOCK UNITS [F3]	Common Shares (233)	·	·	233	Disposed
Feb. 22, 2015	20171	RESTRICTED STOCK UNITS [F3]	Common Shares (1,567)	·	·	1,567	Disposed
Feb. 26, 2014	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,241)	·	·	1,241	Acquired
Feb. 23, 2014	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,939)	·	·	1,939	Disposed
Dec. 31, 2013	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (3,344)	·	·	3,344	Disposed
Feb. 27, 2013	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,281)	·	·	1,281	Acquired
Feb. 24, 2013	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (2,304)	·	·	2,304	Disposed
Feb. 25, 2012	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (2,910)	·	·	2,910	Disposed
Feb. 22, 2012	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,567)	·	·	1,567	Acquired
March 12, 2011	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (2,231)	·	·	2,231	Disposed
Feb. 23, 2011	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (1,939)	·	·	1,939	Acquired
Dec. 31, 2010	20171	RESTRICTED STOCK UNITS [F1]	Common Shares (6,687)	·	·	6,687	Acquired
Oct. 26, 2010	20171	STOCK OPTION [F2]	Common Shares (6,608)	$36.84	March 7, 2012	6,608	Disposed
Oct. 26, 2010	20171	STOCK OPTION [F2]	Common Shares (6,606)	$36.84	March 7, 2012	6,606	Disposed
March 1, 2010	20171	RESTRICTED STOCK UNITS	Common (1,938)	·	·	1,938	Disposed
Feb. 24, 2010	20171	RESTRICTED STOCK UNITS [F1]	Common (2,304)	·	·	2,304	Acquired
March 2, 2009	20171	RESTRICTED STOCK UNITS	Common (2,046)	·	·	2,046	Disposed
Feb. 25, 2009	20171	RESTRICTED STOCK UNITS [F1]	Common (2,910)	·	·	2,910	Acquired
March 12, 2008	20171	RESTRICTED STOCK UNITS 2008 [F1]	COMMON (2,231)	·	·	2,231	Acquired
March 3, 2008	20171	RESTRICTED STOCK UNIT 2005	COMMON (2,246)	·	·	2,246	Disposed
Feb. 6, 2008	20171	PERFORMANCE SHARES 2005	COMMON (13,488)	·	Dec. 31, 2007	13,488	Disposed
Feb. 5, 2008	20171	STOCK OPTION [F4]	COMMON (9,546)	$23.03	March 6, 2013	9,546	Disposed
Feb. 5, 2008	20171	STOCK OPTION [F4]	COMMON (9,546)	$23.03	March 6, 2013	9,546	Disposed
Dec. 12, 2007	20171	STOCK OPTION [F1]	COMMON (2,822)	$35.43	March 1, 2011	2,822	Disposed
Dec. 12, 2007	20171	STOCK OPTION [F1]	COMMON (12,944)	$35.43	March 1, 2011	12,944	Disposed
April 27, 2007	20171	RESTRICTED STOCK UNIT 2004	COMMON (2,536)	·	·	2,536	Disposed
March 1, 2007	20171	RESTRICTED STOCK UNIT 2007 [F1]	COMMON (1,938)	·	·	1,938	Acquired
Feb. 6, 2007	20171	PERFORMANCE SHARES 2004	COMMON (15,224)	·	Dec. 31, 2006	15,224	Disposed
Feb. 6, 2007	20171	PERFORMANCE SHARES 2004	COMMON (15,224)	·	Dec. 31, 2006	15,224	Disposed
Oct. 31, 2006	20171	STOCK OPTION [F1]	COMMON (6,018)	$39.48	March 4, 2008	6,018	Disposed
Oct. 31, 2006	20171	STOCK OPTION [F1]	COMMON (2,532)	$39.48	March 4, 2008	2,532	Disposed
Aug. 11, 2006	20171	STOCK OPTION [F1]	COMMON (10,984)	$29.89	March 10, 2009	10,984	Disposed
Aug. 11, 2006	20171	STOCK OPTION [F1]	COMMON (3,344)	$29.89	March 10, 2009	3,344	Disposed
May 9, 2006	20171	STOCK OPTION [F1]	COMMON (12,242)	$23.98	March 2, 2010	12,242	Disposed
May 9, 2006	20171	STOCK OPTION [F1]	COMMON (6,252)	$23.98	March 2, 2010	6,252	Disposed
March 2, 2006	20171	RESTRICTED STOCK UNIT 2006 [F1]	COMMON (1,023)	·	·	1,023	Acquired
Nov. 11, 2005	20171	STOCK OPTION [F1]	COMMON (3,309)	$57.69	Nov. 10, 2009	3,309	Disposed
Nov. 11, 2005	20171	STOCK OPTION [F1]	COMMON (9,925)	$57.69	Nov. 10, 2009	9,925	Disposed
Aug. 9, 2005	20171	STOCK OPTION [F1]	COMMON (2,855)	$60.75	March 5, 2007	2,855	Disposed
Aug. 9, 2005	20171	STOCK OPTION [F1]	COMMON (1,645)	$60.75	March 5, 2007	1,645	Disposed
March 3, 2005	20171	RESTRICTED STOCK UNIT 2005 [F3]	COMMON (1,123)	·	·	1,123	Acquired
March 3, 2005	20171	PERFORMANCE SHARES 2005 [F2]	COMMON (6,744)	·	·	6,744	Acquired
March 3, 2005	20171	PERFORMANCE SHARES	COMMON (4,071)	·	March 31, 2005	4,071	Disposed
Feb. 4, 2005	20171	STOCK OPTION [F1]	COMMON (2,052)	$48.75	Feb. 27, 2006	2,052	Disposed
Feb. 4, 2005	20171	STOCK OPTION [F1]	COMMON (931)	$41.03	June 8, 2005	931	Disposed
Feb. 4, 2005	20171	STOCK OPTION [F1]	COMMON (998)	$48.75	Feb. 27, 2006	998	Disposed
Feb. 4, 2005	20171	STOCK OPTION [F1]	COMMON (344)	$41.03	June 8, 2005	344	Disposed
Nov. 12, 2004	20171	STOCK OPTION [F1]	COMMON (1,200)	$41.03	June 8, 2005	1,200	Disposed
June 8, 2004	20171	STOCK OPTION [F1]	COMMON (577)	$71.00	June 8, 2004	577	Disposed
April 27, 2004	20171	RESTRICTED STOCK UNIT [F2]	COMMON (1,268)	·	·	1,268	Acquired
April 27, 2004	20171	PERFORMANCE SHARE [F1]	COMMON (7,612)	·	·	7,612	Acquired
March 4, 2004	20171	PERFORMANCE SHARES	COMMON (3,705)	$0.00	March 31, 2004	3,705	Disposed
Nov. 26, 2003	20171	STOCK OPTION [F1]	COMMON (425)	$41.03	June 8, 2005	425	Disposed
Nov. 26, 2003	20171	STOCK OPTION [F1]	COMMON (200)	$40.97	June 8, 2004	200	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.

MKL

COO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2022	$750,000	·	$750,000	·	$562,500	·	$31,014	·
2021	$750,000	·	$843,750	·	$843,750	·	$29,664	·
2020	$750,000	·	$787,500	·	$787,500	·	$29,214	·

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