James B Nish

Insider

First SEC filing: May 8, 2026 · Latest: May 8, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 10 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

10 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 7, 2026	ROCK	A	3,059	$37.59	$114,988	15,035 Direct	+25.54%	Acquired	23.4% (price as of 2026-08-20)
May 5, 2025	ROCK	S	1,172	$58.21	$68,222	11,976 Direct	-8.91%	Disposed	-20.3% (price as of 2026-08-20)
May 2, 2025	ROCK	S	1,000	$57.91	$57,910	13,148 Direct	-7.07%	Disposed	-19.9% (price as of 2026-08-20)
May 2, 2025	ROCK	S	1,670	$57.38	$95,825	14,148 Direct	-10.56%	Disposed	-19.2% (price as of 2026-08-20)
April 30, 2025	ROCK	A	2,172	$52.95	$115,007	15,818 Direct	+15.92%	Acquired	-12.4% (price as of 2026-08-20)
May 1, 2024	ROCK	A	1,670	$68.86	$114,996	13,646 Direct	+13.94%	Acquired	-32.6% (price as of 2026-08-20)
May 23, 2023	ROCK	S	4,963	$56.69	$281,352	11,976 Direct	-29.30%	Disposed	-18.2% (price as of 2026-08-20)
May 3, 2023	ROCK	A	2,117	$54.33	$115,017	16,939 Direct	+14.28%	Acquired	-14.6% (price as of 2026-08-20)
May 6, 2022	ROCK	A	2,460	$42.69	$105,017	14,822 Direct	+19.90%	Acquired	8.7% (price as of 2026-08-20)
May 5, 2021	ROCK	A	1,256	$83.58	$104,976	9,859 Direct	+14.60%	Acquired	-44.5% (price as of 2026-08-20)
May 6, 2020	ROCK	A	2,067	$45.98	$95,041	8,603 Direct	+31.62%	Acquired	0.9% (price as of 2026-08-20)
Sept. 4, 2015	ROCK	A	1,322	—	—	1,322 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 1, 2015	ROCK	A	588	$17.01	$10,002	588 Direct	—	Acquired	172.7% (price as of 2026-08-20)
Sept. 1, 2015	ROCK	A	588	—	—	588 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.

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Sept. 1, 2015	ROCK	Restricted Stock Unit (MSPP Post-2012) [F3]	Common Stock (588)	—	—	588	Acquired
Sept. 1, 2015	ROCK	Restricted Stock Unit (MSPP Match Post-2012) [F1]	Common Stock (588)	—	—	588	Acquired

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