Steven Mizell

Insider

First SEC filing: June 9, 2026 · Latest: June 9, 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

Insider transactions

0 buys (P) 2 sells (S) Net: $-227,026 + 81 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

81 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 15, 2026	GRAL	A	268	$74.36	$19,928	42,830 Direct	+0.63%	Acquired	0.5% (price as of 2026-08-20)
June 18, 2026	GRAL	A	5,491	$63.74	$349,996	42,562 Direct	+14.81%	Acquired	17.2% (price as of 2026-08-20)
June 5, 2026	ALLE	F	292	$130.27	$38,039	5,711 Direct	-4.86%	Disposed	25.2% (price as of 2026-08-20)
June 4, 2026	ALLE	A	1,074	—	—	6,003 Direct	+21.79%	Acquired	(price as of 2026-08-20)
Feb. 19, 2026	ALLE	S	1,000	$161.51	$161,510	4,915 Direct	-16.91%	Disposed	1.0% (price as of 2026-08-20)
Feb. 18, 2026	ALLE	S	400	$163.79	$65,516	5,915 Direct	-6.33%	Disposed	-0.4% (price as of 2026-08-20)
Jan. 2, 2026	GPI	A	575	—	—	583 Direct	+7187.50%	Acquired	(price as of 2026-08-20)
July 29, 2025	GPI	S	525	$417.98	$219,440	8 Direct	-98.50%	Disposed	-37.3% (price as of 2026-08-20)
June 6, 2025	ALLE	F	319	$139.34	$44,449	6,275 Direct	-4.84%	Disposed	17.1% (price as of 2026-08-20)
June 5, 2025	ALLE	A	1,013	—	—	6,594 Direct	+18.15%	Acquired	(price as of 2026-08-20)
Jan. 2, 2025	GPI	A	533	—	—	533 Direct	—	Acquired	(price as of 2026-08-20)
July 26, 2024	ALLE	P	1,000	$136.53	$136,530	5,545 Direct	+22.00%	Acquired	19.5% (price as of 2026-08-20)
June 8, 2024	ALLE	F	294	$116.52	$34,257	4,532 Direct	-6.09%	Disposed	40.0% (price as of 2026-08-20)
June 6, 2024	ALLE	A	1,105	—	—	4,826 Direct	+29.70%	Acquired	(price as of 2026-08-20)
Feb. 2, 2024	MRK	M	824	$70.71	$58,265	42,143 Direct	+1.99%	Acquired	112.7% (price as of 2026-08-20)
Feb. 2, 2024	MRK	M	32,170	$73.73	$2,371,894	74,313 Direct	+76.34%	Acquired	104.0% (price as of 2026-08-20)
Feb. 2, 2024	MRK	S	50,694	$126.65	$6,420,395	23,619 Direct	-68.22%	Disposed	18.7% (price as of 2026-08-20)
Feb. 2, 2024	MRK	M	824	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 2, 2024	MRK	M	32,170	—	—	22,088 Direct	-59.29%	Disposed	(price as of 2026-08-20)
Jan. 22, 2024	MRK	A	18,384	$119.43	$2,195,601	41,319 Direct	+80.16%	Acquired	25.9% (price as of 2026-08-20)
Jan. 2, 2024	GPI	A	739	—	—	3,940 Direct	+23.09%	Acquired	(price as of 2026-08-20)
Dec. 8, 2023	ALLE	F	86	$109.50	$9,417	3,703 Direct	-2.27%	Disposed	49.0% (price as of 2026-08-20)
Dec. 8, 2023	ALLE	A	298	—	—	3,789 Direct	+8.54%	Acquired	(price as of 2026-08-20)
Aug. 14, 2023	MRK	S	4,250	$109.01	$463,292	22,935 Direct	-15.63%	Disposed	38.0% (price as of 2026-08-20)
Aug. 3, 2023	MRK	S	4,500	$105.49	$474,705	27,185 Direct	-14.20%	Disposed	42.6% (price as of 2026-08-20)
June 8, 2023	ALLE	A	1,019	—	—	3,472 Direct	+41.54%	Acquired	(price as of 2026-08-20)
June 2, 2023	ALLE	F	293	$107.41	$31,471	2,453 Direct	-10.67%	Disposed	51.9% (price as of 2026-08-20)
May 3, 2023	MRK	M 10b5-1	13,000	$77.62	$1,009,060	46,085 Direct	+39.29%	Acquired	93.8% (price as of 2026-08-20)
May 3, 2023	MRK	M 10b5-1	15,000	$75.36	$1,130,400	61,085 Direct	+32.55%	Acquired	99.6% (price as of 2026-08-20)
May 3, 2023	MRK	M 10b5-1	12,000	$73.73	$884,760	73,085 Direct	+19.64%	Acquired	104.0% (price as of 2026-08-20)
May 3, 2023	MRK	S 10b5-1	13,000	$119.01	$1,547,130	60,085 Direct	-17.79%	Disposed	26.4% (price as of 2026-08-20)
May 3, 2023	MRK	M	12,000	—	—	32,151 Direct	-27.18%	Disposed	(price as of 2026-08-20)
May 3, 2023	MRK	M	15,000	—	—	44,151 Direct	-25.36%	Disposed	(price as of 2026-08-20)
May 3, 2023	MRK	M	12,000	—	—	54,258 Direct	-18.11%	Disposed	(price as of 2026-08-20)
May 3, 2023	MRK	M	13,000	—	—	39,366 Direct	-24.83%	Disposed	(price as of 2026-08-20)
May 3, 2023	MRK	S 10b5-1	13,400	$119.01	$1,594,734	31,685 Direct	-29.72%	Disposed	26.4% (price as of 2026-08-20)
May 3, 2023	MRK	M	12,000	$75.36	$904,320	45,085 Direct	+36.27%	Acquired	99.6% (price as of 2026-08-20)
May 3, 2023	MRK	S 10b5-1	12,000	$119.01	$1,428,120	33,085 Direct	-26.62%	Disposed	26.4% (price as of 2026-08-20)
May 3, 2023	MRK	S 10b5-1	15,000	$119.01	$1,785,150	45,085 Direct	-24.96%	Disposed	26.4% (price as of 2026-08-20)
May 2, 2023	MRK	A	29,046	—	—	29,046 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2023	MRK	S	1,815	$109.10	$198,016	33,085 Direct	-5.20%	Disposed	37.9% (price as of 2026-08-20)
Feb. 9, 2023	MRK	S	5,000	$107.00	$535,000	34,900 Direct	-12.53%	Disposed	40.6% (price as of 2026-08-20)
Feb. 6, 2023	MRK	S	4,436	$104.25	$462,453	39,900 Direct	-10.01%	Disposed	44.3% (price as of 2026-08-20)
Jan. 23, 2023	MRK	A	12,192	$109.88	$1,339,657	44,336 Direct	+37.93%	Acquired	36.9% (price as of 2026-08-20)
Jan. 3, 2023	GPI	A	1,102	—	—	3,201 Direct	+52.50%	Acquired	(price as of 2026-08-20)
Nov. 10, 2022	MRK	M	15,000	—	—	824 Direct	-94.79%	Disposed	(price as of 2026-08-20)
Nov. 10, 2022	MRK	S	15,000	$101.42	$1,521,300	32,144 Direct	-31.82%	Disposed	48.3% (price as of 2026-08-20)
Nov. 10, 2022	MRK	M	15,000	—	—	47,144 Direct	+46.67%	Acquired	(price as of 2026-08-20)
Nov. 8, 2022	MRK	M	20,000	—	—	15,824 Direct	-55.83%	Disposed	(price as of 2026-08-20)
Nov. 8, 2022	MRK	S	20,000	$101.00	$2,020,000	32,144 Direct	-38.36%	Disposed	48.9% (price as of 2026-08-20)
Nov. 8, 2022	MRK	M	20,000	—	—	52,144 Direct	+62.22%	Acquired	(price as of 2026-08-20)
Oct. 28, 2022	MRK	M	17,000	—	—	35,824 Direct	-32.18%	Disposed	(price as of 2026-08-20)
Oct. 28, 2022	MRK	S	8,000	$98.84	$790,720	32,144 Direct	-19.93%	Disposed	52.2% (price as of 2026-08-20)
Oct. 28, 2022	MRK	S	17,000	$100.00	$1,700,000	40,144 Direct	-29.75%	Disposed	50.4% (price as of 2026-08-20)
Oct. 28, 2022	MRK	M	17,000	—	—	57,144 Direct	+42.35%	Acquired	(price as of 2026-08-20)
June 3, 2022	ALLE	F	241	$112.36	$27,079	2,719 Direct	-8.14%	Disposed	45.2% (price as of 2026-08-20)
June 2, 2022	ALLE	A	1,016	—	—	2,960 Direct	+52.26%	Acquired	(price as of 2026-08-20)
May 3, 2022	MRK	A	40,777	—	—	40,777 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2022	MRK	A	14,571	$73.51	$1,071,114	40,144 Direct	+56.98%	Acquired	104.6% (price as of 2026-08-20)
Jan. 3, 2022	GPI	A	1,030	—	—	2,099 Direct	+96.35%	Acquired	(price as of 2026-08-20)
Oct. 30, 2021	MRK	M	4,715	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 30, 2021	MRK	F	2,323	$88.05	$204,540	25,573 Direct	-8.33%	Disposed	70.8% (price as of 2026-08-20)
Oct. 30, 2021	MRK	M	4,715	$88.05	$415,156	27,896 Direct	+20.34%	Acquired	70.8% (price as of 2026-08-20)
June 3, 2021	ALLE	A	835	—	—	1,934 Direct	+75.98%	Acquired	(price as of 2026-08-20)
May 4, 2021	MRK	A	64,286	—	—	64,286 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2021	GPI	A	1,069	—	—	1,069 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 26, 2021	MRK	A	17,830	$72.62	$1,294,815	23,181 Direct	+333.21%	Acquired	117.0% (price as of 2026-08-20)
Oct. 30, 2020	MRK	M	4,574	—	—	4,575 Direct	-49.99%	Disposed	(price as of 2026-08-20)
Oct. 30, 2020	MRK	F	2,273	$75.89	$172,498	5,351 Direct	-29.81%	Disposed	107.7% (price as of 2026-08-20)
Oct. 30, 2020	MRK	M	4,574	$75.89	$347,121	7,624 Direct	+149.97%	Acquired	107.7% (price as of 2026-08-20)
June 4, 2020	ALLE	A	1,099	—	—	1,099 Direct	—	Acquired	(price as of 2026-08-20)
May 1, 2020	MRK	A	57,391	—	—	57,391 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 30, 2019	MRK	M	4,574	—	—	4,574 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 30, 2019	MRK	F	1,567	$85.10	$133,352	3,007 Direct	-34.26%	Disposed	85.2% (price as of 2026-08-20)
Oct. 30, 2019	MRK	M	4,574	$85.10	$389,247	9,149 Direct	-33.33%	Disposed	85.2% (price as of 2026-08-20)
May 3, 2019	MRK	A	50,808	—	—	50,808 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 19, 2018	OSK	A	47	$66.09	$3,106	11,660 Direct	+0.40%	Acquired	128.5% (price as of 2026-08-20)
Nov. 15, 2018	OSK	A	283	$67.37	$19,066	11,613 Direct	+2.50%	Acquired	124.1% (price as of 2026-08-20)
Oct. 30, 2018	MRK	A	13,723	—	—	13,723 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 30, 2018	MRK	A	51,252	—	—	51,252 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 16, 2018	OSK	A	39	$69.23	$2,700	11,330 Direct	+0.35%	Acquired	118.1% (price as of 2026-08-20)
Aug. 15, 2018	OSK	A	281	$67.92	$19,086	11,291 Direct	+2.55%	Acquired	122.3% (price as of 2026-08-20)
May 15, 2018	OSK	A	254	$74.96	$19,040	11,010 Direct	+2.36%	Acquired	101.4% (price as of 2026-08-20)
May 14, 2018	OSK	A	34	$74.77	$2,542	10,756 Direct	+0.32%	Acquired	102.0% (price as of 2026-08-20)
Feb. 15, 2018	OSK	A	219	$87.04	$19,062	10,722 Direct	+2.09%	Acquired	73.5% (price as of 2026-08-20)
Feb. 12, 2018	OSK	A	29	$86.15	$2,498	10,503 Direct	+0.28%	Acquired	75.3% (price as of 2026-08-20)
Feb. 6, 2018	OSK	A	1,625	—	—	10,474 Direct	+18.36%	Acquired	(price as of 2026-08-20)
Nov. 16, 2017	OSK	A	24	$84.60	$2,030	8,849 Direct	+0.27%	Acquired	78.5% (price as of 2026-08-20)
Nov. 15, 2017	OSK	A	173	$84.06	$14,542	8,824 Direct	+2.00%	Acquired	79.6% (price as of 2026-08-20)
Aug. 18, 2017	OSK	A	25	$73.38	$1,834	8,652 Direct	+0.29%	Acquired	105.8% (price as of 2026-08-20)
Aug. 15, 2017	OSK	A	192	$75.43	$14,483	8,627 Direct	+2.28%	Acquired	100.2% (price as of 2026-08-20)
May 15, 2017	OSK	A	221	$65.74	$14,529	8,435 Direct	+2.69%	Acquired	129.7% (price as of 2026-08-20)
May 12, 2017	OSK	A	26	$65.41	$1,701	8,214 Direct	+0.32%	Acquired	130.8% (price as of 2026-08-20)
April 28, 2017	OSK	S	1,800	$69.80	$125,640	8,188 Direct	-18.02%	Disposed	116.3% (price as of 2026-08-20)
Feb. 15, 2017	OSK	A	209	$69.42	$14,509	9,988 Direct	+2.14%	Acquired	117.5% (price as of 2026-08-20)
Feb. 13, 2017	OSK	A	24	$68.33	$1,640	9,778 Direct	+0.25%	Acquired	121.0% (price as of 2026-08-20)
Feb. 7, 2017	OSK	A	2,025	—	—	9,754 Direct	+26.20%	Acquired	(price as of 2026-08-20)
Nov. 17, 2016	OSK	A	19	$66.74	$1,268	7,729 Direct	+0.25%	Acquired	126.2% (price as of 2026-08-20)
Nov. 15, 2016	OSK	A	180	$67.13	$12,083	7,711 Direct	+2.39%	Acquired	124.9% (price as of 2026-08-20)
Aug. 15, 2016	OSK	A	224	$53.97	$12,089	7,512 Direct	+3.07%	Acquired	179.8% (price as of 2026-08-20)

Showing latest 100 of 110 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. 2, 2024	MRK	Stock Option (Right to Buy)	Common Stock (824)	$70.71	Oct. 29, 2028	824	Disposed
Feb. 2, 2024	MRK	Stock Option (Right to Buy)	Common Stock (32,170)	$73.73	May 3, 2031	32,170	Disposed
Jan. 2, 2024	GPI	Restricted Stock Units	Common Stock (739)	—	—	739	Acquired
May 3, 2023	MRK	Stock Option (Right to Buy)	Common Stock (12,000)	—	April 30, 2030	12,000	Disposed
May 3, 2023	MRK	Stock Option (Right to Buy)	Common Stock (15,000)	—	April 30, 2030	15,000	Disposed
May 3, 2023	MRK	Stock Option (Right to Buy)	Common Stock (12,000)	—	May 3, 2031	12,000	Disposed
May 3, 2023	MRK	Stock Option (Right to Buy)	Common Stock (13,000)	—	May 2, 2029	13,000	Disposed
May 2, 2023	MRK	Stock Option (Right to Buy)	Common Stock (29,046)	$117.89	May 1, 2033	29,046	Acquired
Jan. 3, 2023	GPI	Restricted Stock Units	Common Stock (1,102)	—	—	1,102	Acquired
Nov. 10, 2022	MRK	Stock Option (Right to Buy)	Common Stock (15,000)	$70.71	Oct. 29, 2028	15,000	Disposed
Nov. 8, 2022	MRK	Stock Option (Right to Buy)	Common Stock (20,000)	$70.71	Oct. 29, 2028	20,000	Disposed
Oct. 28, 2022	MRK	Stock Option (Right to Buy)	Common Stock (17,000)	—	Oct. 29, 2028	17,000	Disposed
May 3, 2022	MRK	Stock Option (Right to Buy)	Common Stock (40,777)	$87.10	May 2, 2032	40,777	Acquired
Jan. 3, 2022	GPI	Restricted Stock Units	Common Stock (1,030)	—	—	1,030	Acquired
Oct. 30, 2021	MRK	Restricted Stock Unit	Common Stock	—	Oct. 30, 2021	4,715	Disposed
May 4, 2021	MRK	Stock Option (Right to Buy)	Common Stock (64,286)	$75.99	May 3, 2031	64,286	Acquired
March 1, 2021	GPI	Restricted Stock Units	Common Stock (1,069)	—	—	1,069	Acquired
Oct. 30, 2020	MRK	Restricted Stock Unit	Common Stock (4,574)	—	Oct. 30, 2021	4,574	Disposed
May 1, 2020	MRK	Stock Option (Right to Buy)	Common Stock (57,391)	$77.67	April 30, 2030	57,391	Acquired
Oct. 30, 2019	MRK	Restricted Stock Unit	Common Stock (4,574)	—	Oct. 30, 2021	4,574	Disposed
May 3, 2019	MRK	Stock Option (right to buy)	Common Stock (50,808)	$80.00	May 2, 2029	50,808	Acquired
Oct. 30, 2018	MRK	Restricted Stock Unit	Common Stock (13,723)	—	Oct. 30, 2021	13,723	Acquired
Oct. 30, 2018	MRK	Stock Option (right to buy)	Common Stock (51,252)	$72.87	Oct. 29, 2028	51,252	Acquired

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
March 1, 2021	GPI	Common Stock	0	Direct