Mark Lowell Keim

Insider

First SEC filing: March 16, 2018 · Latest: March 16, 2018

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 36 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

36 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 1, 2025	MOH	A	8,677	$288.12	$2,500,017	59,486 Direct	+17.08%	Acquired	-30.2% (price as of 2026-08-20)
March 1, 2025	MOH	F	2,480	$301.12	$746,778	50,809 Direct	-4.65%	Disposed	-33.2% (price as of 2026-08-20)
March 1, 2025	MOH	F	5,053	$301.12	$1,521,559	53,289 Direct	-8.66%	Disposed	-33.2% (price as of 2026-08-20)
March 1, 2025	MOH	A	10,748	$301.12	$3,236,438	58,342 Direct	+22.58%	Acquired	-33.2% (price as of 2026-08-20)
March 1, 2024	MOH	A	5,165	$387.12	$1,999,475	47,594 Direct	+12.17%	Acquired	-48.0% (price as of 2026-08-20)
March 1, 2024	MOH	F	2,507	$387.21	$970,735	42,429 Direct	-5.58%	Disposed	-48.0% (price as of 2026-08-20)
March 1, 2024	MOH	F	7,658	$387.21	$2,965,254	44,936 Direct	-14.56%	Disposed	-48.0% (price as of 2026-08-20)
March 1, 2024	MOH	A	16,063	$387.21	$6,219,754	52,594 Direct	+43.97%	Acquired	-48.0% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	2,116	$383.82	$812,163	36,531 Direct	-5.48%	Disposed	-47.6% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	1,815	$384.58	$698,013	38,647 Direct	-4.49%	Disposed	-47.7% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	1,203	$385.80	$464,117	40,462 Direct	-2.89%	Disposed	-47.9% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	4,351	$387.00	$1,683,837	41,665 Direct	-9.46%	Disposed	-48.0% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	4,251	$387.94	$1,649,133	46,016 Direct	-8.46%	Disposed	-48.1% (price as of 2026-08-20)
Feb. 12, 2024	MOH	S	1,264	$388.61	$491,203	50,267 Direct	-2.45%	Disposed	-48.2% (price as of 2026-08-20)
March 1, 2023	MOH	F	10,857	$273.80	$2,972,647	51,429 Direct	-17.43%	Disposed	-26.5% (price as of 2026-08-20)
March 1, 2023	MOH	A	24,480	$273.08	$6,684,998	62,286 Direct	+64.75%	Acquired	-26.3% (price as of 2026-08-20)
March 1, 2023	MOH	A	5,844	$273.08	$1,595,880	37,806 Direct	+18.28%	Acquired	-26.3% (price as of 2026-08-20)
March 1, 2023	MOH	F	2,851	$273.08	$778,551	31,962 Direct	-8.19%	Disposed	-26.3% (price as of 2026-08-20)
Aug. 9, 2022	MOH	S	3,630	$331.42	$1,203,055	34,813 Direct	-9.44%	Disposed	-39.3% (price as of 2026-08-20)
Aug. 9, 2022	MOH	S	8,370	$329.05	$2,754,148	38,443 Direct	-17.88%	Disposed	-38.9% (price as of 2026-08-20)
March 1, 2022	MOH	F	7,211	$311.88	$2,248,967	46,813 Direct	-13.35%	Disposed	-35.5% (price as of 2026-08-20)
March 1, 2022	MOH	A	17,342	$311.88	$5,408,623	54,024 Direct	+47.28%	Acquired	-35.5% (price as of 2026-08-20)
March 1, 2022	MOH	F	2,994	$311.88	$933,769	36,682 Direct	-7.55%	Disposed	-35.5% (price as of 2026-08-20)
March 1, 2022	MOH	A	4,810	$311.88	$1,500,143	39,676 Direct	+13.80%	Acquired	-35.5% (price as of 2026-08-20)
Jan. 10, 2022	MOH	F	1,325	$289.70	$383,852	34,866 Direct	-3.66%	Disposed	-30.6% (price as of 2026-08-20)
March 1, 2021	MOH	A	6,300	$222.24	$1,400,112	31,710 Direct	+24.79%	Acquired	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	F	2,679	$222.24	$595,381	29,031 Direct	-8.45%	Disposed	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	A	12,520	$222.24	$2,782,445	41,551 Direct	+43.13%	Acquired	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	F	5,360	$222.24	$1,191,206	36,191 Direct	-12.90%	Disposed	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	F	5,360	$222.24	$1,191,206	23,591 Direct	-18.51%	Disposed	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	A	12,520	$222.24	$2,782,445	28,951 Direct	+76.20%	Acquired	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	F	2,679	$222.24	$595,381	16,431 Direct	-14.02%	Disposed	-9.5% (price as of 2026-08-20)
March 1, 2021	MOH	A	6,300	$222.24	$1,400,112	19,110 Direct	+49.18%	Acquired	-9.5% (price as of 2026-08-20)
Jan. 10, 2021	MOH	F	889	$243.10	$216,116	25,410 Direct	-3.38%	Disposed	-17.2% (price as of 2026-08-20)
March 1, 2020	MOH	A	8,160	$122.55	$1,000,008	26,299 Direct	+44.99%	Acquired	64.2% (price as of 2026-08-20)
March 1, 2020	MOH	F	1,046	$122.55	$128,187	18,139 Direct	-5.45%	Disposed	64.2% (price as of 2026-08-20)
Jan. 10, 2020	MOH	F	1,064	$143.35	$152,524	19,185 Direct	-5.25%	Disposed	40.3% (price as of 2026-08-20)
March 1, 2019	MOH	F	450	$138.40	$62,280	20,249 Direct	-2.17%	Disposed	45.4% (price as of 2026-08-20)
March 1, 2019	MOH	A	5,780	$138.40	$799,952	20,699 Direct	+38.74%	Acquired	45.4% (price as of 2026-08-20)
Jan. 10, 2019	MOH	F	1,011	$133.04	$134,503	14,919 Direct	-6.35%	Disposed	51.2% (price as of 2026-08-20)
Nov. 29, 2017	THG	M	4,966	—	—	9,934 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Nov. 29, 2017	THG	S	4,966	$107.80	$535,335	0 Direct	-100.00%	Disposed	103.5% (price as of 2026-08-20)
Nov. 29, 2017	THG	M	4,966	$85.30	$423,600	4,966 Direct	—	Acquired	157.2% (price as of 2026-08-20)
Feb. 24, 2017	THG	A	19,980	—	—	19,980 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 21, 2016	THG	A	14,900	—	—	14,900 Direct	—	Acquired	(price as of 2026-08-20)

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
Nov. 29, 2017	THG	Common Stock Option (right to buy)	Common Stock (4,966)	$85.30	Nov. 21, 2026	4,966	Disposed
Feb. 24, 2017	THG	Common Stock Option (right to buy)	Common Stock (19,980)	$91.19	Feb. 24, 2027	19,980	Acquired
Nov. 21, 2016	THG	Common Stock Option (right to buy)	Common Stock (14,900)	$85.30	Nov. 21, 2026	14,900	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
March 16, 2018	MOH	Common Stock	15,930	Direct
Nov. 22, 2016	THG	Common Stock	0	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MOH

CFO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$1,000,000	—	—	—	$0	—	$312,049	$7,562,184
2024	$850,000	—	—	—	$892,500	—	$303,326	$7,045,869
2023	$850,000	—	—	—	$1,249,500	—	$302,605	$6,402,049

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