Mark Q Prindiville

Insider

First SEC filing: May 14, 2020 · Latest: May 27, 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

ALL selling May 22, 2026

Insider transactions

0 buys (P) 5 sells (S) Net: $-1,859,299 + 57 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

57 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 22, 2026	ALL	M	1,550	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 22, 2026	ALL	S	1,550	$216.27	$335,218	27,558 Direct	-5.32%	Disposed	18.5% (price as of 2026-08-21)
May 22, 2026	ALL	M	1,550	$69.31	$107,430	29,108 Direct	+5.62%	Acquired	269.9% (price as of 2026-08-21)
Feb. 24, 2026	ALL	M	402	—	—	806 Direct	-33.28%	Disposed	(price as of 2026-08-21)
Feb. 24, 2026	ALL	F	169	$209.82	$35,460	27,558 Direct	-0.61%	Disposed	22.2% (price as of 2026-08-21)
Feb. 24, 2026	ALL	M	402	—	—	27,727 Direct	+1.47%	Acquired	(price as of 2026-08-21)
Feb. 21, 2026	ALL	M	571	—	—	571 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Feb. 21, 2026	ALL	F	240	$206.37	$49,529	27,325 Direct	-0.87%	Disposed	24.2% (price as of 2026-08-21)
Feb. 21, 2026	ALL	M	571	—	—	27,565 Direct	+2.12%	Acquired	(price as of 2026-08-21)
Feb. 19, 2026	ALL	A	1,181	—	—	1,181 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 19, 2026	ALL	A	4,840	—	—	4,840 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 13, 2026	ALL	F	2,513	$207.51	$521,473	26,994 Direct	-8.52%	Disposed	23.5% (price as of 2026-08-21)
Feb. 13, 2026	ALL	A	7,233	—	—	29,507 Direct	+32.47%	Acquired	(price as of 2026-08-21)
Aug. 22, 2025	ALL	M	7,383	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Aug. 22, 2025	ALL	S	115	$208.26	$23,950	22,274 Direct	-0.51%	Disposed	23.1% (price as of 2026-08-21)
Aug. 22, 2025	ALL	S	2,984	$207.31	$618,613	22,389 Direct	-11.76%	Disposed	23.7% (price as of 2026-08-21)
Aug. 22, 2025	ALL	S	1,265	$206.82	$261,627	25,373 Direct	-4.75%	Disposed	23.9% (price as of 2026-08-21)
Aug. 22, 2025	ALL	S	3,019	$205.33	$619,891	26,638 Direct	-10.18%	Disposed	24.8% (price as of 2026-08-21)
Aug. 22, 2025	ALL	M	7,383	$62.32	$460,109	29,657 Direct	+33.15%	Acquired	311.3% (price as of 2026-08-21)
Feb. 24, 2025	ALL	A	4,698	—	—	4,698 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2025	ALL	A	1,208	—	—	1,208 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2025	ALL	M	570	—	—	1,142 Direct	-33.29%	Disposed	(price as of 2026-08-21)
Feb. 21, 2025	ALL	F	154	$185.66	$28,592	22,274 Direct	-0.69%	Disposed	38.1% (price as of 2026-08-21)
Feb. 21, 2025	ALL	M	570	—	—	22,428 Direct	+2.61%	Acquired	(price as of 2026-08-21)
Feb. 14, 2025	ALL	F	923	$187.63	$173,182	21,858 Direct	-4.05%	Disposed	36.6% (price as of 2026-08-21)
Feb. 14, 2025	ALL	A	3,043	—	—	22,781 Direct	+15.42%	Acquired	(price as of 2026-08-21)
Feb. 21, 2024	ALL	A	1,712	—	—	1,712 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2024	ALL	A	6,892	—	—	6,892 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2024	ALL	A	1,393	—	—	1,393 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2024	ALL	A	5,749	—	—	5,749 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 18, 2024	ALL	F	488	$161.78	$78,949	19,738 Direct	-2.41%	Disposed	58.5% (price as of 2026-08-21)
Feb. 18, 2024	ALL	A	1,549	—	—	20,226 Direct	+8.29%	Acquired	(price as of 2026-08-21)
Nov. 21, 2023	ALL	M	6,935	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 21, 2023	ALL	M	4,016	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 21, 2023	ALL	S	10,951	$135.43	$1,483,094	18,677 Direct	-36.96%	Disposed	89.3% (price as of 2026-08-21)
Nov. 21, 2023	ALL	M	6,935	$70.71	$490,374	29,628 Direct	+30.56%	Acquired	262.5% (price as of 2026-08-21)
Nov. 21, 2023	ALL	M	4,016	$52.18	$209,555	22,693 Direct	+21.50%	Acquired	391.3% (price as of 2026-08-21)
June 3, 2023	ALL	A	1,510	—	—	19,120 Direct	+8.57%	Acquired	(price as of 2026-08-21)
June 3, 2023	ALL	F	443	$110.08	$48,765	18,677 Direct	-2.32%	Disposed	132.9% (price as of 2026-08-21)
Feb. 19, 2023	ALL	A	2,401	—	—	18,069 Direct	+15.32%	Acquired	(price as of 2026-08-21)
Feb. 19, 2023	ALL	M	388	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 19, 2023	ALL	F	105	$135.05	$14,180	17,610 Direct	-0.59%	Disposed	89.8% (price as of 2026-08-21)
Feb. 19, 2023	ALL	M	388	—	—	17,715 Direct	+2.24%	Acquired	(price as of 2026-08-21)
Feb. 19, 2023	ALL	F	742	$135.05	$100,207	17,327 Direct	-4.11%	Disposed	89.8% (price as of 2026-08-21)
Feb. 16, 2023	ALL	A	13,295	—	—	13,295 Direct	—	Acquired	(price as of 2026-08-21)
Oct. 3, 2022	ALL	M	210	—	—	15,762 Direct	+1.35%	Acquired	(price as of 2026-08-21)
Oct. 3, 2022	ALL	F	94	$124.53	$11,706	15,668 Direct	-0.60%	Disposed	105.8% (price as of 2026-08-21)
Oct. 3, 2022	ALL	M	210	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Sept. 8, 2022	ALL	M	5,511	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Sept. 8, 2022	ALL	S	5,511	$125.93	$694,000	15,552 Direct	-26.16%	Disposed	103.6% (price as of 2026-08-21)
Sept. 8, 2022	ALL	M	5,511	—	—	21,063 Direct	+35.44%	Acquired	(price as of 2026-08-21)
Feb. 19, 2022	ALL	M	387	—	—	388 Direct	-49.94%	Disposed	(price as of 2026-08-21)
Feb. 19, 2022	ALL	F	114	$125.89	$14,351	15,552 Direct	-0.73%	Disposed	103.6% (price as of 2026-08-21)
Feb. 19, 2022	ALL	M	387	—	—	15,666 Direct	+2.53%	Acquired	(price as of 2026-08-21)
Feb. 17, 2022	ALL	A	19,066	—	—	19,066 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 7, 2022	ALL	F	1,472	$124.76	$183,647	15,279 Direct	-8.79%	Disposed	105.5% (price as of 2026-08-21)
Feb. 7, 2022	ALL	A	4,900	—	—	16,751 Direct	+41.35%	Acquired	(price as of 2026-08-21)
Feb. 22, 2021	ALL	A	4,874	—	—	13,324 Direct	+57.68%	Acquired	(price as of 2026-08-21)
Feb. 22, 2021	ALL	F	1,473	$103.45	$152,382	11,851 Direct	-11.06%	Disposed	147.8% (price as of 2026-08-21)
Feb. 19, 2021	ALL	M	387	—	—	775 Direct	-33.30%	Disposed	(price as of 2026-08-21)
Feb. 19, 2021	ALL	F	114	$103.45	$11,793	8,450 Direct	-1.33%	Disposed	147.8% (price as of 2026-08-21)
Feb. 19, 2021	ALL	M	387	—	—	8,564 Direct	+4.73%	Acquired	(price as of 2026-08-21)
Feb. 18, 2021	ALL	A	22,540	—	—	22,540 Direct	—	Acquired	(price as of 2026-08-21)
June 3, 2020	ALL	A	5,394	—	—	5,394 Direct	—	Acquired	(price as of 2026-08-21)

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
May 22, 2026	ALL	Employee Stock Option (Right to Buy)	Common Stock (1,550)	$69.31	Sept. 6, 2026	1,550	Disposed
Feb. 24, 2026	ALL	Restricted Stock Units	Common Stock (402)	—	Feb. 24, 2028	402	Disposed
Feb. 21, 2026	ALL	Restricted Stock Units	Common Stock (571)	—	Feb. 21, 2027	571	Disposed
Feb. 19, 2026	ALL	Restricted Stock Units	Common Stock (1,181)	—	Feb. 19, 2029	1,181	Acquired
Feb. 19, 2026	ALL	Employee Stock Option (Right to Buy)	Common Stock (4,840)	$203.22	Feb. 19, 2036	4,840	Acquired
Aug. 22, 2025	ALL	Employee Stock Option (Right to Buy)	Common Stock (7,383)	$62.32	Feb. 11, 2026	7,383	Disposed
Feb. 24, 2025	ALL	Employee Stock Option (Right to Buy)	Common Stock (4,698)	$188.75	Feb. 24, 2035	4,698	Acquired
Feb. 24, 2025	ALL	Restricted Stock Units	Common Stock (1,208)	—	Feb. 24, 2028	1,208	Acquired
Feb. 21, 2025	ALL	Restricted Stock Units	Common Stock (570)	—	Feb. 21, 2027	570	Disposed
Feb. 21, 2024	ALL	Restricted Stock Units	Common Stock	—	Feb. 21, 2027	1,712	Acquired
Feb. 21, 2024	ALL	Employee Stock Option (Right to Buy)	Common Stock	$159.17	Feb. 21, 2034	6,892	Acquired
Feb. 21, 2024	ALL	Restricted Stock Units	Common Stock (1,393)	—	Feb. 21, 2027	1,393	Acquired
Feb. 21, 2024	ALL	Employee Stock Option (Right to Buy)	Common Stock (5,749)	$159.17	Feb. 21, 2034	5,749	Acquired
Nov. 21, 2023	ALL	Employee Stock Option (Right to Buy)	Common Stock (6,935)	$70.71	Feb. 18, 2025	6,935	Disposed
Nov. 21, 2023	ALL	Employee Stock Option (Right to Buy)	Common Stock (4,016)	$52.18	Feb. 18, 2024	4,016	Disposed
Feb. 19, 2023	ALL	Restricted Stock Units	Common Stock (388)	—	Feb. 19, 2023	388	Disposed
Feb. 16, 2023	ALL	Employee Stock Option (Right to Buy)	Common Stock (13,295)	$137.10	Feb. 16, 2033	13,295	Acquired
Oct. 3, 2022	ALL	Restricted Stock Units	Common Stock (210)	—	Oct. 3, 2022	210	Disposed
Sept. 8, 2022	ALL	Employee Stock Option (Right to Buy)	Common Stock (5,511)	$45.61	Feb. 12, 2023	5,511	Disposed
Feb. 19, 2022	ALL	Restricted Stock Units	Common Stock (387)	—	Feb. 19, 2023	387	Disposed
Feb. 17, 2022	ALL	Employee Stock Option (Right to Buy)	Common Stock (19,066)	$122.64	Feb. 17, 2032	19,066	Acquired
Feb. 19, 2021	ALL	Restricted Stock Units	Common Stock (387)	—	Feb. 19, 2023	387	Disposed
Feb. 18, 2021	ALL	Employee Stock Option (Right to Buy)	Common Stock (22,540)	$105.08	Feb. 18, 2031	22,540	Acquired
June 3, 2020	ALL	Employee Stock Option (Right to Buy)	Common Stock (5,394)	$100.41	June 3, 2030	5,394	Acquired

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

Initial ownership (Form 3) 13 holdings

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

Date	Ticker	Security	Shares	Ownership
May 14, 2020	ALL	Common Stock	8,177	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (5,511)	5,511	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (4,016)	4,016	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (6,935)	6,935	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (7,383)	7,383	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (1,550)	1,550	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (9,662)	9,662	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (8,847)	8,847	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (10,109)	10,109	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (1,391)	1,391	Direct
May 14, 2020	ALL	Employee Stock Option (Right to Buy)→ Common Stock (5,260)	5,260	Direct
May 14, 2020	ALL	Restricted Stock Units→ Common Stock (210)	210	Direct
May 14, 2020	ALL	Restricted Stock Units→ Common Stock (1,162)	1,162	Direct