Robert M Buck

Insider

First SEC filing: Feb. 24, 2016 · Latest: Feb. 24, 2016

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 67 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

67 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	BLD	D	23,688	—	—	0 Direct	-100.00%	Disposed
July 1, 2026	BLD	D	10,327	—	—	23,688 Direct	-30.36%	Disposed
July 1, 2026	BLD	D	40,372	—	—	34,015 Direct	-54.27%	Disposed
June 23, 2026	CNM	A	2,799	—	—	15,849 Direct	+21.45%	Acquired	(price as of 2026-08-19)
Aug. 7, 2025	BLD	S	7,350	$415.19	$3,051,646	73,225 Direct	-9.12%	Disposed
Feb. 18, 2025	BLD	A	4,949	$321.33	$1,590,262	85,964 Direct	+6.11%	Acquired
Feb. 18, 2025	BLD	A	4,949	$321.33	$1,590,262	81,015 Direct	+6.51%	Acquired
Feb. 18, 2025	BLD	A	6,598	$321.33	$2,120,135	76,066 Direct	+9.50%	Acquired
June 12, 2024	BLD	S	2,500	$418.05	$1,045,125	69,468 Direct	-3.47%	Disposed
May 9, 2024	BLD	M	10,269	$405.21	$4,161,101	0 Direct	-100.00%	Disposed
May 9, 2024	BLD	S	5,000	$403.72	$2,018,600	71,968 Direct	-6.50%	Disposed
Feb. 20, 2024	BLD	A	3,675	$383.69	$1,410,061	79,080 Direct	+4.87%	Acquired
Feb. 20, 2024	BLD	A	3,675	$383.69	$1,410,061	75,405 Direct	+5.12%	Acquired
Feb. 20, 2024	BLD	A	4,900	$383.69	$1,880,081	71,730 Direct	+7.33%	Acquired
Dec. 15, 2023	BLD	S	2,500	$374.60	$936,500	66,830 Direct	-3.61%	Disposed
Nov. 29, 2023	BLD	S	4,500	$296.02	$1,332,090	69,330 Direct	-6.10%	Disposed
Aug. 14, 2023	BLD	S	4,500	$301.76	$1,357,920	73,830 Direct	-5.74%	Disposed
June 28, 2023	CNM	A	3,927	—	—	8,412 Direct	+87.56%	Acquired	(price as of 2026-08-19)
June 13, 2023	BLD	M	3,209	$240.22	$770,866	0 Direct	-100.00%	Disposed
June 13, 2023	BLD	S	4,473	$240.04	$1,073,699	78,330 Direct	-5.40%	Disposed
Feb. 22, 2023	BLD	A	5,833	$198.00	$1,154,934	82,803 Direct	+7.58%	Acquired
Feb. 21, 2023	BLD	A	6,588	$191.25	$1,259,955	76,970 Direct	+9.36%	Acquired
Feb. 21, 2023	BLD	A	6,588	$191.25	$1,259,955	70,382 Direct	+10.33%	Acquired
Feb. 21, 2023	BLD	A	8,784	$191.25	$1,679,940	63,794 Direct	+15.97%	Acquired
Sept. 5, 2022	CNM	A	4,485	—	—	4,485 Direct	—	Acquired	(price as of 2026-08-19)
May 17, 2022	BLD	M	3,207	$200.00	$641,400	3,209 Direct	-49.98%	Disposed
March 15, 2022	BLD	M	5,734	$215.16	$1,233,727	0 Direct	-100.00%	Disposed
Feb. 22, 2022	BLD	A	12,075	$219.56	$2,651,187	55,010 Direct	+28.12%	Acquired
Feb. 15, 2022	BLD	A	4,240	$233.46	$989,870	42,935 Direct	+10.96%	Acquired
Feb. 15, 2022	BLD	A	4,240	$233.46	$989,870	38,695 Direct	+12.31%	Acquired
Feb. 15, 2022	BLD	A	5,654	$233.46	$1,319,983	34,455 Direct	+19.63%	Acquired
Dec. 15, 2021	BLD	S	2,000	$273.33	$546,660	28,801 Direct	-6.49%	Disposed
Nov. 5, 2021	BLD	S	4,000	$264.46	$1,057,840	30,801 Direct	-11.49%	Disposed
March 10, 2021	BLD	M	3,207	—	—	6,416 Direct	-33.33%	Disposed
March 10, 2021	BLD	M	5,733	—	—	5,734 Direct	-50.00%	Disposed
March 10, 2021	BLD	M	4,126	—	—	0 Direct	-100.00%	Disposed
March 10, 2021	BLD	M	6,523	—	—	0 Direct	-100.00%	Disposed
March 9, 2021	BLD	M	4	—	—	4,126 Direct	-0.10%	Disposed
March 9, 2021	BLD	M	95	—	—	6,523 Direct	-1.44%	Disposed
Feb. 22, 2021	BLD	A	8,172	$201.17	$1,643,961	34,801 Direct	+30.69%	Acquired
Feb. 16, 2021	BLD	A	10,269	—	—	42,107 Direct	+32.25%	Acquired
Feb. 16, 2021	BLD	A	6,432	$214.58	$1,380,179	26,629 Direct	+31.85%	Acquired
Sept. 1, 2020	BLD	S	2,000	$159.69	$319,380	20,197 Direct	-9.01%	Disposed
Aug. 7, 2020	BLD	M	9,578	—	—	0 Direct	-100.00%	Disposed
Aug. 7, 2020	BLD	S	2,237	$139.76	$312,643	22,197 Direct	-9.16%	Disposed
Aug. 7, 2020	BLD	S	9,578	$139.54	$1,336,514	24,434 Direct	-28.16%	Disposed
Aug. 7, 2020	BLD	M	9,578	$27.10	$259,564	34,012 Direct	+39.20%	Acquired
July 15, 2020	BLD	F	1,453	$123.46	$179,387	24,434 Direct	-5.61%	Disposed
May 8, 2020	BLD	S	3,000	$100.03	$300,090	25,887 Direct	-10.39%	Disposed
Feb. 27, 2020	BLD	M	5,733	—	—	11,467 Direct	-33.33%	Disposed
Feb. 27, 2020	BLD	M	4,130	—	—	4,130 Direct	-50.00%	Disposed
Feb. 27, 2020	BLD	M	7,387	—	—	0 Direct	-100.00%	Disposed
Feb. 27, 2020	BLD	M	6,618	—	—	6,618 Direct	-50.00%	Disposed
Feb. 27, 2020	BLD	S	12,500	$105.00	$1,312,500	28,887 Direct	-30.20%	Disposed
Feb. 27, 2020	BLD	S	1,540	$104.20	$160,468	41,387 Direct	-3.59%	Disposed
Feb. 27, 2020	BLD	F	4,193	$104.20	$436,911	42,927 Direct	-8.90%	Disposed
Feb. 27, 2020	BLD	M	5,733	$58.08	$332,973	47,120 Direct	+13.85%	Acquired
Feb. 27, 2020	BLD	S	713	$104.11	$74,230	41,387 Direct	-1.69%	Disposed
Feb. 27, 2020	BLD	F	3,417	$104.11	$355,744	42,100 Direct	-7.51%	Disposed
Feb. 27, 2020	BLD	M	4,130	$74.50	$307,685	45,517 Direct	+9.98%	Acquired
Feb. 27, 2020	BLD	S	2,831	$104.24	$295,103	41,387 Direct	-6.40%	Disposed
Feb. 27, 2020	BLD	F	4,556	$104.24	$474,917	44,218 Direct	-9.34%	Disposed
Feb. 27, 2020	BLD	M	7,387	$38.39	$283,587	48,774 Direct	+17.85%	Acquired
Feb. 27, 2020	BLD	S	100	$104.90	$10,490	41,387 Direct	-0.24%	Disposed
Feb. 27, 2020	BLD	S	2,902	$104.24	$302,504	41,487 Direct	-6.54%	Disposed
Feb. 27, 2020	BLD	F	3,616	$104.26	$377,004	44,389 Direct	-7.53%	Disposed
Feb. 27, 2020	BLD	M	6,618	$26.30	$174,053	48,005 Direct	+15.99%	Acquired
Feb. 22, 2020	BLD	F	861	$123.01	$105,912	41,387 Direct	-2.04%	Disposed
Feb. 21, 2020	BLD	F	8,760	$123.01	$1,077,568	42,248 Direct	-17.17%	Disposed
Feb. 21, 2020	BLD	A	25,000	—	—	51,008 Direct	+96.12%	Acquired
Feb. 17, 2020	BLD	A	9,623	—	—	9,623 Direct	—	Acquired
Jan. 14, 2020	BLD	F	327	$105.52	$34,505	26,008 Direct	-1.24%	Disposed
Nov. 4, 2019	BLD	S	4,145	$109.94	$455,701	26,335 Direct	-13.60%	Disposed
Nov. 4, 2019	BLD	S	600	$109.98	$65,988	30,480 Direct	-1.93%	Disposed
Nov. 4, 2019	BLD	S	2,801	$109.14	$305,701	31,080 Direct	-8.27%	Disposed
Aug. 6, 2019	BLD	S	200	$91.29	$18,258	33,881 Direct	-0.59%	Disposed
Aug. 6, 2019	BLD	S	1,800	$90.42	$162,756	34,081 Direct	-5.02%	Disposed
Aug. 5, 2019	BLD	S	196	$88.54	$17,354	35,881 Direct	-0.54%	Disposed
Aug. 5, 2019	BLD	M	4,130	—	—	8,260 Direct	-33.33%	Disposed
Aug. 5, 2019	BLD	M	9,578	—	—	9,578 Direct	-50.00%	Disposed
Aug. 5, 2019	BLD	S	1,793	$87.72	$157,282	36,077 Direct	-4.73%	Disposed
Aug. 5, 2019	BLD	S	2,020	$87.07	$175,881	37,870 Direct	-5.06%	Disposed
Aug. 5, 2019	BLD	F	5,569	$87.43	$486,898	39,890 Direct	-12.25%	Disposed
Aug. 5, 2019	BLD	M	9,578	$27.10	$259,564	45,459 Direct	+26.69%	Acquired
Aug. 5, 2019	BLD	S	410	$89.04	$36,506	35,881 Direct	-1.13%	Disposed
Aug. 5, 2019	BLD	F	3,720	$89.07	$331,340	36,291 Direct	-9.30%	Disposed
Aug. 5, 2019	BLD	M	4,130	$74.50	$307,685	40,011 Direct	+11.51%	Acquired
July 15, 2019	BLD	F	1,453	$82.81	$120,323	35,881 Direct	-3.89%	Disposed
July 1, 2019	BLD	F	190	$81.02	$15,394	37,334 Direct	-0.51%	Disposed
May 16, 2019	BLD	S	3,500	$85.00	$297,500	37,524 Direct	-8.53%	Disposed
May 9, 2019	BLD	M	7,387	—	—	7,387 Direct	-50.00%	Disposed
May 9, 2019	BLD	S	3,500	$81.00	$283,500	41,024 Direct	-7.86%	Disposed
May 9, 2019	BLD	S	2,377	$81.76	$194,344	44,524 Direct	-5.07%	Disposed
May 9, 2019	BLD	F	5,010	$81.76	$409,618	46,901 Direct	-9.65%	Disposed
May 9, 2019	BLD	M	7,387	$38.39	$283,587	51,911 Direct	+16.59%	Acquired
Feb. 28, 2019	BLD	M	6,618	$26.30	$174,053	60,142 Direct	+12.36%	Acquired
Feb. 28, 2019	BLD	S	2,200	$58.18	$127,996	57,942 Direct	-3.66%	Disposed
Feb. 28, 2019	BLD	M	10,457	$26.30	$275,019	68,399 Direct	+18.05%	Acquired
Feb. 28, 2019	BLD	S	3,477	$58.20	$202,361	64,922 Direct	-5.08%	Disposed
Feb. 28, 2019	BLD	M	6,618	—	—	13,236 Direct	-33.33%	Disposed

Showing latest 100 of 154 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
May 9, 2024	BLD	Employee Stock Option (right to buy)	Common Stock (10,269)	$214.58	Feb. 17, 2030	10,269	Disposed
June 13, 2023	BLD	Employee Stock Option (right to buy)	Common Stock (3,209)	$118.58	Feb. 17, 2030	3,209	Disposed
May 17, 2022	BLD	Employee Stock Option (right to buy)	Common Stock (3,207)	$118.58	Feb. 14, 2030	3,207	Disposed
March 15, 2022	BLD	Employee Stock Option (right to buy)	Common Stock (5,374)	$58.08	Feb. 18, 2029	5,734	Disposed
March 10, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (3,207)	$118.58	Feb. 17, 2030	3,207	Disposed
March 10, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (5,733)	$58.08	Feb. 18, 2029	5,733	Disposed
March 10, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (4,126)	$74.50	Feb. 19, 2028	4,126	Disposed
March 10, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (6,523)	$26.30	Feb. 22, 2026	6,523	Disposed
March 9, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (4)	$74.50	Feb. 19, 2028	4	Disposed
March 9, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (95)	$26.30	Feb. 22, 2026	95	Disposed
Feb. 16, 2021	BLD	Employee Stock Option (right to buy)	Common Stock (10,269)	$89.59	Feb. 16, 2031	10,269	Acquired
Aug. 7, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (9,578)	$27.10	July 8, 2025	9,578	Disposed
Feb. 27, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (5,733)	$58.08	Feb. 18, 2029	5,733	Disposed
Feb. 27, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (4,130)	$74.50	Feb. 19, 2028	4,130	Disposed
Feb. 27, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (7,387)	$38.39	Feb. 21, 2027	7,387	Disposed
Feb. 27, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (6,618)	$26.30	Feb. 22, 2026	6,618	Disposed
Feb. 17, 2020	BLD	Employee Stock Option (right to buy)	Common Stock (9,623)	$118.58	Feb. 17, 2030	9,623	Acquired
Aug. 5, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (4,130)	$74.50	Feb. 19, 2028	4,130	Disposed
Aug. 5, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (9,578)	$27.10	July 8, 2025	9,578	Disposed
May 9, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (7,387)	$38.39	Feb. 21, 2027	7,387	Disposed
Feb. 28, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (6,618)	$26.30	Feb. 22, 2026	6,618	Disposed
Feb. 28, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (10,457)	$26.30	Feb. 22, 2026	10,457	Disposed
Feb. 18, 2019	BLD	Employee Stock Option (right to buy)	Common Stock (17,200)	$58.08	Feb. 18, 2029	17,200	Acquired
Aug. 9, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (9,578)	$27.10	July 8, 2025	9,578	Disposed
March 6, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (7,386)	$38.39	Feb. 21, 2027	7,386	Disposed
March 6, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (20,913)	$26.30	Feb. 22, 2026	20,913	Disposed
March 6, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (13,236)	$26.30	Feb. 22, 2026	13,236	Disposed
March 6, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (19,156)	$27.10	July 8, 2025	19,156	Disposed
Feb. 19, 2018	BLD	Employee Stock Option (right to buy)	Common Stock (12,390)	$74.50	Feb. 19, 2028	12,390	Acquired
Feb. 21, 2017	BLD	Employee Stock Option (right to buy)	common stock (22,160)	$38.39	Feb. 21, 2027	22,160	Acquired
Feb. 22, 2016	BLD	Employee Stock Option	Common Stock (31,370)	$26.30	Feb. 22, 2026	31,370	Acquired
Feb. 22, 2016	BLD	Employee Stock Option	Common Stock (33,090)	$26.30	Feb. 22, 2026	33,090	Acquired
July 8, 2015	BLD	Employee Stock Option	Common (47,890)	$27.10	July 8, 2025	47,890	Acquired

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CIK 1633931

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$1,077,500	—	—	—	$1,124,170	—	$14,855	$7,873,810
2024	$1,030,833	—	—	—	$1,305,200	—	$17,165	$7,494,364
2023	$970,833	—	—	—	$2,069,730	—	$14,190	$7,777,624

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.