Donna M. Long

Insider

First SEC filing: June 2, 2022 · Latest: June 2, 2022

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Insider at

0 buys (P) 1 sells (S) Net: $-99,244 + 9 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

9 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 17, 2026	DORM	S 10b5-1	734	$135.21	$99,244	19,339 Direct	-3.66%	Disposed	-1.8% (price as of 2026-08-20)
March 6, 2023	DORM	D	412	$84.88	$34,971	17,674 Direct	-2.28%	Disposed	56.4% (price as of 2026-08-20)
March 3, 2023	DORM	M	508	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 3, 2023	DORM	F	408	$90.47	$36,912	18,086 Direct	-2.21%	Disposed	46.7% (price as of 2026-08-20)
March 3, 2023	DORM	M	508	$72.55	$36,855	18,494 Direct	+2.82%	Acquired	82.9% (price as of 2026-08-20)
March 2, 2023	DORM	A	2,082	—	—	2,082 Direct	—	Acquired	(price as of 2026-08-20)
March 2, 2023	DORM	A	821	—	—	17,986 Direct	+4.78%	Acquired	(price as of 2026-08-20)
March 2, 2023	DORM	F	255	$91.28	$23,276	17,165 Direct	-1.46%	Disposed	45.4% (price as of 2026-08-20)
Feb. 22, 2023	DORM	F	962	$93.38	$89,832	17,420 Direct	-5.23%	Disposed	42.1% (price as of 2026-08-20)
Feb. 22, 2023	DORM	A	2,086	—	—	18,382 Direct	+12.80%	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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 3, 2023	DORM	Employee Stock Option (right to buy)	Common Stock (508)	$72.55	March 7, 2023	508	Disposed
March 2, 2023	DORM	Employee Stock Option (right to buy)	Common Stock (2,082)	$91.28	March 2, 2031	2,082	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
June 2, 2022	DORM	Common Stock	16,295	Direct
June 2, 2022	DORM	Employee Stock Option (right to buy)→ Common Stock (508)	508	Direct
June 2, 2022	DORM	Employee Stock Option (right to buy)→ Common Stock (1,231)	1,231	Direct
June 2, 2022	DORM	Employee Stock Option (right to buy)→ Common Stock (3,277)	3,277	Direct
June 2, 2022	DORM	Employee Stock Option (right to buy)→ Common Stock (1,707)	1,707	Direct
June 2, 2022	DORM	Employee Stock Option (right to buy)→ Common Stock (1,761)	1,761	Direct