Michael D Witzeman

Insider

First SEC filing: April 7, 2017 · Latest: April 7, 2017

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

CHE selling March 21, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 89 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

89 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 13, 2026	CHE	F	120	$469.56	$56,347	5,953 Direct	-1.98%	Disposed	13.8% (price as of 2026-08-19)
Feb. 13, 2026	CHE	A	1,394	—	—	3,464 Direct	+67.34%	Acquired	(price as of 2026-08-19)
Feb. 13, 2026	CHE	M	333	—	—	2,070 Direct	-13.86%	Disposed	(price as of 2026-08-19)
Feb. 13, 2026	CHE	M	333	—	—	2,403 Direct	-12.17%	Disposed	(price as of 2026-08-19)
Feb. 13, 2026	CHE	M	0	$469.56	—	6,073 Direct	0.00%	Acquired	13.8% (price as of 2026-08-19)
Feb. 13, 2026	CHE	M	413	$469.56	$193,928	6,073 Direct	+7.30%	Acquired	13.8% (price as of 2026-08-19)
Oct. 21, 2025	CHE	A	19,486	$443.79	$8,647,692	53,970 Direct	+56.51%	Acquired	20.4% (price as of 2026-08-19)
March 10, 2025	CHE	M	8,796	$445.35	$3,917,299	34,484 Direct	-20.32%	Disposed	20.0% (price as of 2026-08-19)
March 10, 2025	CHE	F	7,494	$600.92	$4,503,294	5,660 Direct	-56.97%	Disposed	-11.1% (price as of 2026-08-19)
March 10, 2025	CHE	M	8,796	$445.35	$3,917,299	13,154 Direct	+201.84%	Acquired	20.0% (price as of 2026-08-19)
Feb. 14, 2025	CHE	A	1,128	—	—	2,736 Direct	+70.15%	Acquired	(price as of 2026-08-19)
Feb. 14, 2025	CHE	M	323	—	—	1,608 Direct	-16.73%	Disposed	(price as of 2026-08-19)
Feb. 14, 2025	CHE	M	323	—	—	1,931 Direct	-14.33%	Disposed	(price as of 2026-08-19)
Feb. 14, 2025	CHE	F	276	$553.39	$152,736	4,358 Direct	-5.96%	Disposed	-3.4% (price as of 2026-08-19)
Feb. 14, 2025	CHE	M	198	$553.39	$109,571	4,634 Direct	+4.46%	Acquired	-3.4% (price as of 2026-08-19)
Feb. 14, 2025	CHE	M	652	$553.39	$360,810	4,436 Direct	+17.23%	Acquired	-3.4% (price as of 2026-08-19)
Oct. 22, 2024	CHE	A	13,395	$597.70	$8,006,192	43,280 Direct	+44.82%	Acquired	-10.6% (price as of 2026-08-19)
July 31, 2024	CHE	M	7,948	$471.74	$3,749,390	29,885 Direct	-21.01%	Disposed	13.3% (price as of 2026-08-19)
July 31, 2024	CHE	F	7,225	$560.99	$4,053,153	3,784 Direct	-65.63%	Disposed	-4.8% (price as of 2026-08-19)
July 31, 2024	CHE	M	7,948	$471.74	$3,749,390	11,009 Direct	+259.65%	Acquired	13.3% (price as of 2026-08-19)
May 7, 2024	CHE	M	1,100	$413.19	$454,509	37,833 Direct	-2.83%	Disposed	29.3% (price as of 2026-08-19)
May 7, 2024	CHE	F	921	$576.95	$531,371	3,061 Direct	-23.13%	Disposed	-7.4% (price as of 2026-08-19)
May 7, 2024	CHE	M	1,100	$413.19	$454,509	3,982 Direct	+38.17%	Acquired	29.3% (price as of 2026-08-19)
March 21, 2024	CHE	S	2,650	$643.14	$1,704,321	2,882 Direct	-47.90%	Disposed	-16.9% (price as of 2026-08-19)
March 20, 2024	CHE	M	2,600	$413.19	$1,074,294	38,933 Direct	-6.26%	Disposed	29.3% (price as of 2026-08-19)
March 20, 2024	CHE	F	355	$647.44	$229,841	5,532 Direct	-6.03%	Disposed	-17.5% (price as of 2026-08-19)
March 20, 2024	CHE	M	2,600	$413.19	$1,074,294	5,887 Direct	+79.10%	Acquired	29.3% (price as of 2026-08-19)
Feb. 16, 2024	CHE	A	942	—	—	2,254 Direct	+71.80%	Acquired	(price as of 2026-08-19)
Feb. 16, 2024	CHE	M	278	—	—	1,312 Direct	-17.48%	Disposed	(price as of 2026-08-19)
Feb. 16, 2024	CHE	M	278	—	—	1,590 Direct	-14.88%	Disposed	(price as of 2026-08-19)
Feb. 16, 2024	CHE	F	130	$586.49	$76,244	3,287 Direct	-3.80%	Disposed	-8.9% (price as of 2026-08-19)
Feb. 16, 2024	CHE	M	260	$586.49	$152,487	3,417 Direct	+8.24%	Acquired	-8.9% (price as of 2026-08-19)
Feb. 16, 2024	CHE	M	173	$586.49	$101,463	3,157 Direct	+5.80%	Acquired	-8.9% (price as of 2026-08-19)
Nov. 8, 2023	CHE	M	3,300	$413.19	$1,363,527	41,533 Direct	-7.36%	Disposed	29.3% (price as of 2026-08-19)
Nov. 8, 2023	CHE	F	2,685	$582.95	$1,565,221	2,984 Direct	-47.36%	Disposed	-8.3% (price as of 2026-08-19)
Nov. 8, 2023	CHE	M	3,300	$413.19	$1,363,527	5,669 Direct	+139.30%	Acquired	29.3% (price as of 2026-08-19)
Oct. 25, 2023	CHE	A	12,540	$509.46	$6,388,628	44,833 Direct	+38.83%	Acquired	4.9% (price as of 2026-08-19)
Feb. 17, 2023	CHE	A	666	—	—	1,868 Direct	+55.41%	Acquired	(price as of 2026-08-19)
Feb. 17, 2023	CHE	M	211	—	—	1,202 Direct	-14.93%	Disposed	(price as of 2026-08-19)
Feb. 17, 2023	CHE	M	211	—	—	1,413 Direct	-12.99%	Disposed	(price as of 2026-08-19)
Feb. 17, 2023	CHE	F	200	$515.12	$103,024	2,369 Direct	-7.79%	Disposed	3.7% (price as of 2026-08-19)
Feb. 17, 2023	CHE	M	243	$515.12	$125,174	2,569 Direct	+10.45%	Acquired	3.7% (price as of 2026-08-19)
Feb. 17, 2023	CHE	M	426	$515.12	$219,441	2,326 Direct	+22.42%	Acquired	3.7% (price as of 2026-08-19)
Nov. 10, 2022	CHE	S	736	$498.47	$366,874	1,900 Direct	-27.92%	Disposed	7.2% (price as of 2026-08-19)
Nov. 4, 2022	CHE	M	6,900	$306.70	$2,116,230	32,293 Direct	-17.61%	Disposed	74.2% (price as of 2026-08-19)
Nov. 4, 2022	CHE	F	5,450	$479.27	$2,612,022	2,636 Direct	-67.40%	Disposed	11.5% (price as of 2026-08-19)
Nov. 4, 2022	CHE	M	6,900	$306.70	$2,116,230	8,086 Direct	+581.79%	Acquired	74.2% (price as of 2026-08-19)
Nov. 3, 2022	CHE	S	1,300	$482.62	$627,406	1,186 Direct	-52.29%	Disposed	10.7% (price as of 2026-08-19)
Oct. 31, 2022	CHE	A	8,549	$462.04	$3,949,980	39,193 Direct	+27.90%	Acquired	15.6% (price as of 2026-08-19)
Feb. 18, 2022	CHE	A	646	—	—	1,624 Direct	+66.05%	Acquired	(price as of 2026-08-19)
Feb. 18, 2022	CHE	M	269	—	—	978 Direct	-21.57%	Disposed	(price as of 2026-08-19)
Feb. 18, 2022	CHE	M	269	—	—	1,247 Direct	-17.74%	Disposed	(price as of 2026-08-19)
Feb. 18, 2022	CHE	F	266	$459.77	$122,299	2,486 Direct	-9.67%	Disposed	16.2% (price as of 2026-08-19)
Feb. 18, 2022	CHE	M	354	$459.77	$162,759	2,752 Direct	+14.76%	Acquired	16.2% (price as of 2026-08-19)
Feb. 18, 2022	CHE	M	543	$459.77	$249,655	2,398 Direct	+29.27%	Acquired	16.2% (price as of 2026-08-19)
Oct. 29, 2021	CHE	A	8,796	$445.35	$3,917,299	30,644 Direct	+40.26%	Acquired	20.0% (price as of 2026-08-19)
Feb. 19, 2021	CHE	A	556	—	—	1,516 Direct	+57.92%	Acquired	(price as of 2026-08-19)
Feb. 19, 2021	CHE	M	295	—	—	960 Direct	-23.51%	Disposed	(price as of 2026-08-19)
Feb. 19, 2021	CHE	M	295	—	—	1,255 Direct	-19.03%	Disposed	(price as of 2026-08-19)
Feb. 19, 2021	CHE	F	322	$491.34	$158,211	3,710 Direct	-7.99%	Disposed	8.7% (price as of 2026-08-19)
Feb. 19, 2021	CHE	M	486	$491.34	$238,791	4,032 Direct	+13.71%	Acquired	8.7% (price as of 2026-08-19)
Feb. 19, 2021	CHE	M	596	$491.34	$292,839	3,546 Direct	+20.20%	Acquired	8.7% (price as of 2026-08-19)
Dec. 17, 2020	CHE	S	2,500	$520.00	$1,300,000	2,950 Direct	-45.87%	Disposed	2.8% (price as of 2026-08-19)
Nov. 4, 2020	CHE	M	8,000	$231.91	$1,855,280	21,848 Direct	-26.80%	Disposed	130.4% (price as of 2026-08-19)
Nov. 4, 2020	CHE	F	5,551	$492.38	$2,733,201	5,450 Direct	-50.46%	Disposed	8.5% (price as of 2026-08-19)
Nov. 4, 2020	CHE	S	1,000	$514.73	$514,730	11,001 Direct	-8.33%	Disposed	3.8% (price as of 2026-08-19)
Nov. 4, 2020	CHE	M	8,000	$231.91	$1,855,280	12,001 Direct	+199.95%	Acquired	130.4% (price as of 2026-08-19)
Oct. 29, 2020	CHE	A	7,948	$471.74	$3,749,390	29,848 Direct	+36.29%	Acquired	13.3% (price as of 2026-08-19)
Aug. 3, 2020	CHE	S	2,000	$500.00	$1,000,000	4,001 Direct	-33.33%	Disposed	6.9% (price as of 2026-08-19)
Feb. 21, 2020	CHE	A	422	—	—	1,550 Direct	+37.41%	Acquired	(price as of 2026-08-19)
Feb. 21, 2020	CHE	M	302	—	—	1,128 Direct	-21.12%	Disposed	(price as of 2026-08-19)
Feb. 21, 2020	CHE	M	302	—	—	1,430 Direct	-17.44%	Disposed	(price as of 2026-08-19)
Feb. 21, 2020	CHE	F	334	$487.90	$162,959	6,001 Direct	-5.27%	Disposed	9.5% (price as of 2026-08-19)
Feb. 21, 2020	CHE	M	499	$487.90	$243,462	6,335 Direct	+8.55%	Acquired	9.5% (price as of 2026-08-19)
Feb. 21, 2020	CHE	M	612	$487.90	$298,595	5,836 Direct	+11.72%	Acquired	9.5% (price as of 2026-08-19)
Dec. 4, 2019	CHE	S	2,500	$435.00	$1,087,500	5,224 Direct	-32.37%	Disposed	22.8% (price as of 2026-08-19)
Nov. 21, 2019	CHE	M	6,667	$135.85	$905,712	21,900 Direct	-23.34%	Disposed	293.3% (price as of 2026-08-19)
Nov. 21, 2019	CHE	F	1,943	$424.32	$824,454	7,724 Direct	-20.10%	Disposed	25.9% (price as of 2026-08-19)
Nov. 21, 2019	CHE	M	6,667	$135.85	$905,712	9,667 Direct	+222.23%	Acquired	293.3% (price as of 2026-08-19)
Oct. 29, 2019	CHE	A	7,000	$413.19	$2,892,330	28,567 Direct	+32.46%	Acquired	29.3% (price as of 2026-08-19)
Aug. 19, 2019	CHE	S	2,175	$435.00	$946,125	3,000 Direct	-42.03%	Disposed	22.8% (price as of 2026-08-19)
Aug. 16, 2019	CHE	S	2,174	$430.00	$934,820	5,175 Direct	-29.58%	Disposed	24.3% (price as of 2026-08-19)
Aug. 12, 2019	CHE	M	2,000	$157.36	$314,720	21,567 Direct	-8.49%	Disposed	239.6% (price as of 2026-08-19)
Aug. 12, 2019	CHE	M	6,000	$106.59	$639,540	23,567 Direct	-20.29%	Disposed	401.3% (price as of 2026-08-19)
Aug. 12, 2019	CHE	F	4,651	$415.97	$1,934,676	7,349 Direct	-38.76%	Disposed	28.5% (price as of 2026-08-19)
Aug. 12, 2019	CHE	M	2,000	$157.36	$314,720	12,000 Direct	+20.00%	Acquired	239.6% (price as of 2026-08-19)
Aug. 12, 2019	CHE	M	6,000	$106.59	$639,540	10,000 Direct	+150.00%	Acquired	401.3% (price as of 2026-08-19)
March 12, 2019	CHE	S	735	$328.00	$241,080	4,000 Direct	-15.52%	Disposed	62.9% (price as of 2026-08-19)
Feb. 22, 2019	CHE	A	538	—	—	1,732 Direct	+45.06%	Acquired	(price as of 2026-08-19)
Feb. 22, 2019	CHE	M	316	—	—	1,194 Direct	-20.93%	Disposed	(price as of 2026-08-19)
Feb. 22, 2019	CHE	M	316	—	—	1,510 Direct	-17.31%	Disposed	(price as of 2026-08-19)
Feb. 22, 2019	CHE	F	362	$322.40	$116,709	4,735 Direct	-7.10%	Disposed	65.7% (price as of 2026-08-19)
Feb. 22, 2019	CHE	M	455	$322.40	$146,692	5,097 Direct	+9.80%	Acquired	65.7% (price as of 2026-08-19)
Feb. 22, 2019	CHE	M	642	$322.40	$206,981	4,642 Direct	+16.05%	Acquired	65.7% (price as of 2026-08-19)
Nov. 2, 2018	CHE	A	6,900	$306.70	$2,116,230	29,567 Direct	+30.44%	Acquired	74.2% (price as of 2026-08-19)
Aug. 24, 2018	CHE	S	1,706	$322.00	$549,332	4,000 Direct	-29.90%	Disposed	65.9% (price as of 2026-08-19)
July 30, 2018	CHE	M	3,551	$70.30	$249,635	22,667 Direct	-13.54%	Disposed	660.1% (price as of 2026-08-19)
July 30, 2018	CHE	F	1,964	$322.30	$632,997	5,706 Direct	-25.61%	Disposed	65.8% (price as of 2026-08-19)
July 30, 2018	CHE	M	3,551	$70.30	$249,635	7,670 Direct	+86.21%	Acquired	660.1% (price as of 2026-08-19)
May 22, 2018	CHE	F	151	$333.53	$50,363	4,119 Direct	-3.54%	Disposed	60.2% (price as of 2026-08-19)

Showing latest 100 of 117 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. 13, 2026	CHE	Performance Stock Units	Capital Stock (1,394)	—	—	1,394	Acquired
Feb. 13, 2026	CHE	Performance Stock Units	Capital Stock (333)	—	—	333	Disposed
Feb. 13, 2026	CHE	Performance Stock Units	Capital Stock (333)	—	—	333	Disposed
Oct. 21, 2025	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (19,486)	$443.79	Oct. 21, 2030	19,486	Acquired
March 10, 2025	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (8,796)	$445.35	Oct. 28, 2026	8,796	Disposed
Feb. 14, 2025	CHE	Performance Stock Units	Capital Stock (1,128)	—	—	1,128	Acquired
Feb. 14, 2025	CHE	Performance Stock Units	Capital Stock (323)	—	—	323	Disposed
Feb. 14, 2025	CHE	Performance Stock Units	Capital Stock (323)	—	—	323	Disposed
Oct. 22, 2024	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (13,395)	$597.70	Oct. 22, 2029	13,395	Acquired
July 31, 2024	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (7,948)	$471.74	Oct. 29, 2025	7,948	Disposed
May 7, 2024	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (1,100)	$413.19	Oct. 29, 2024	1,100	Disposed
March 20, 2024	CHE	Stock Option (right to buy with tandem tax withholding)	Capital Stock (2,600)	$413.19	Oct. 29, 2024	2,600	Disposed
Feb. 16, 2024	CHE	Performance Share Units	Capital Stock (942)	—	—	942	Acquired
Feb. 16, 2024	CHE	Performance Share Units	Capital Stock (278)	—	—	278	Disposed
Feb. 16, 2024	CHE	Performance Share Units	Capital Stock (278)	—	—	278	Disposed
Nov. 8, 2023	CHE	stock option(right to buy with tandem tax withholding)	capital stock (3,300)	$413.19	Oct. 29, 2024	3,300	Disposed
Oct. 25, 2023	CHE	stock option(right to buy with tandem tax withholding)	capital stock (12,540)	$509.46	Oct. 25, 2028	12,540	Acquired
Feb. 17, 2023	CHE	performance stock units	capital stock (666)	—	—	666	Acquired
Feb. 17, 2023	CHE	performance stock units	capital stock (211)	—	—	211	Disposed
Feb. 17, 2023	CHE	performance stock units	capital stock (211)	—	—	211	Disposed
Nov. 4, 2022	CHE	stock option(right to buy with tandem tax withholding)	capital stock (6,900)	$306.70	Nov. 2, 2023	6,900	Disposed
Oct. 31, 2022	CHE	stock option(right to buy with tandem tax withholding)	capital stock (8,549)	$462.04	Oct. 31, 2027	8,549	Acquired
Feb. 18, 2022	CHE	performance stock units	capital stock (646)	—	—	646	Acquired
Feb. 18, 2022	CHE	performance stock units	capital stock (269)	—	—	269	Disposed
Feb. 18, 2022	CHE	performance stock units	capital stock (269)	—	—	269	Disposed
Oct. 29, 2021	CHE	stock option(right to buy with tandem tax withholding)	capital stock (8,796)	$445.35	Oct. 28, 2026	8,796	Acquired
Feb. 19, 2021	CHE	performance stock units	capital stock (556)	—	—	556	Acquired
Feb. 19, 2021	CHE	performance stock units	capital stock (295)	—	—	295	Disposed
Feb. 19, 2021	CHE	performance stock units	capital stock (295)	—	—	295	Disposed
Nov. 4, 2020	CHE	stock option(right to buy with tandem tax withholding)	capital stock (8,000)	$231.91	Nov. 3, 2022	8,000	Disposed
Oct. 29, 2020	CHE	stock option(right to buy with tandem tax withholding)	capital stock (7,948)	$471.74	Oct. 29, 2025	7,948	Acquired
Feb. 21, 2020	CHE	performance stock units	capital stock (422)	—	—	422	Acquired
Feb. 21, 2020	CHE	performance stock units	capital stock (302)	—	—	302	Disposed
Feb. 21, 2020	CHE	performance stock units	capital stock (302)	—	—	302	Disposed
Nov. 21, 2019	CHE	stock option(right to buy with tandem tax withholding)	capital stock (6,667)	$135.85	Nov. 4, 2021	6,667	Disposed
Oct. 29, 2019	CHE	stock option(right to buy with tandem tax withholding)	capital stock (7,000)	$413.19	Oct. 29, 2024	7,000	Acquired
Aug. 12, 2019	CHE	stock option(right to buy with tandem tax withholding)	capital stock (2,000)	$157.36	Nov. 6, 2020	2,000	Disposed
Aug. 12, 2019	CHE	stock option(right to buy with tandem tax withholding)	capital stock (6,000)	$106.59	Nov. 7, 2024	6,000	Disposed
Feb. 22, 2019	CHE	performance stock units	capital stock (538)	—	—	538	Acquired
Feb. 22, 2019	CHE	performance stock units	capital stock (316)	—	—	316	Disposed
Feb. 22, 2019	CHE	performance stock units	capital stock (316)	—	—	316	Disposed
Nov. 2, 2018	CHE	stock option(right to buy with tandem tax withholding)	capital stock (6,900)	$306.70	Nov. 2, 2023	6,900	Acquired
July 30, 2018	CHE	stock option(right to buy with tandem tax withholding)	capital stock (3,551)	$70.30	Nov. 8, 2023	3,551	Disposed
April 24, 2018	CHE	stock option(right to buy with tandem tax withholding)	capital stock (3,333)	$135.85	Nov. 4, 2021	3,333	Disposed
Feb. 16, 2018	CHE	performance stock units	capital stock (590)	—	—	590	Acquired
Feb. 16, 2018	CHE	performance stock units	capital stock (265)	—	—	265	Disposed
Feb. 16, 2018	CHE	performance stock units	capital stock (265)	—	—	265	Disposed
Nov. 6, 2017	CHE	stock option(right to buy with tandem tax withholding)	capital stock (4,000)	$157.36	Nov. 6, 2020	4,000	Disposed
Nov. 3, 2017	CHE	stock option(right to buy with tandem tax withholding)	capital stock (8,000)	$231.91	Nov. 3, 2022	8,000	Acquired

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

Initial ownership (Form 3) 9 holdings

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

Date	Ticker	Security	Shares	Ownership
April 7, 2017	CHE	capital stock	5,136	Direct
April 7, 2017	CHE	performance stock units→ capital stock (265)	265	Direct
April 7, 2017	CHE	performance stock units→ capital stock (265)	265	Direct
April 7, 2017	CHE	performance stock units→ capital stock (632)	632	Direct
April 7, 2017	CHE	performance stock units→ capital stock (604)	604	Direct
April 7, 2017	CHE	stock option (right to buy with tandem tax withholding)→ capital stock (3,551)	3,551	Direct
April 7, 2017	CHE	stock option (right to buy with tandem tax withholding)→ capital stock (6,000)	6,000	Direct
April 7, 2017	CHE	stock option (right to buy with tandem tax withholding)→ capital stock (6,000)	6,000	Direct
April 7, 2017	CHE	stock option (righ to buy with tandem tax withholding)→ capital stock (10,000)	10,000	Direct