Robert M Buck
Insider
First SEC filing: Feb. 24, 2016 · Latest: Feb. 24, 2016
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-4,357,000
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| 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 2026-10-05) |
| Feb. 17, 2026 | BLD | A | 4,294 | $545.06 | $2,340,488 | 67,519 Direct | +6.79% | Acquired | |
| Feb. 17, 2026 | BLD | A | 3,220 | $545.06 | $1,755,093 | 70,739 Direct | +4.77% | Acquired | |
| Feb. 17, 2026 | BLD | A | 3,220 | $545.06 | $1,755,093 | 73,959 Direct | +4.55% | Acquired | |
| Dec. 11, 2025 | BLD | S | 5,000 | $453.39 | $2,266,950 | 63,225 Direct | -7.33% | Disposed | |
| Nov. 7, 2025 | BLD | S | 5,000 | $418.01 | $2,090,050 | 68,225 Direct | -6.83% | Disposed | |
| Aug. 7, 2025 | BLD | S | 7,350 | $415.19 | $3,051,646 | 73,225 Direct | -9.12% | Disposed | |
| June 24, 2025 | CNM | A | 2,189 | · | · | 13,050 Direct | +20.15% | Acquired | (price as of 2026-10-05) |
| 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 26, 2024 | CNM | A | 2,449 | · | · | 10,861 Direct | +29.11% | Acquired | (price as of 2026-10-05) |
| 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 2026-10-05) |
| 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 2026-10-05) |
| 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 |
Showing latest 100 of 161 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 | $214.58 | Feb. 17, 2030 | 10,269 | Disposed |
| June 13, 2023 | BLD | Employee Stock Option (right to buy) | Common Stock | $118.58 | Feb. 17, 2030 | 3,209 | Disposed |
| May 17, 2022 | BLD | Employee Stock Option (right to buy) | Common Stock | $118.58 | Feb. 14, 2030 | 3,207 | Disposed |
| March 15, 2022 | BLD | Employee Stock Option (right to buy) | Common Stock | $58.08 | Feb. 18, 2029 | 5,734 | Disposed |
| March 10, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $118.58 | Feb. 17, 2030 | 3,207 | Disposed |
| March 10, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $58.08 | Feb. 18, 2029 | 5,733 | Disposed |
| March 10, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $74.50 | Feb. 19, 2028 | 4,126 | Disposed |
| March 10, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 6,523 | Disposed |
| March 9, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $74.50 | Feb. 19, 2028 | 4 | Disposed |
| March 9, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 95 | Disposed |
| Feb. 16, 2021 | BLD | Employee Stock Option (right to buy) | Common Stock | $89.59 | Feb. 16, 2031 | 10,269 | Acquired |
| Aug. 7, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $27.10 | July 8, 2025 | 9,578 | Disposed |
| Feb. 27, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $58.08 | Feb. 18, 2029 | 5,733 | Disposed |
| Feb. 27, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $74.50 | Feb. 19, 2028 | 4,130 | Disposed |
| Feb. 27, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $38.39 | Feb. 21, 2027 | 7,387 | Disposed |
| Feb. 27, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 6,618 | Disposed |
| Feb. 17, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $118.58 | Feb. 17, 2030 | 9,623 | Acquired |
| Aug. 5, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $74.50 | Feb. 19, 2028 | 4,130 | Disposed |
| Aug. 5, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $27.10 | July 8, 2025 | 9,578 | Disposed |
| May 9, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $38.39 | Feb. 21, 2027 | 7,387 | Disposed |
| Feb. 28, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 6,618 | Disposed |
| Feb. 28, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 10,457 | Disposed |
| Feb. 18, 2019 | BLD | Employee Stock Option (right to buy) | Common Stock | $58.08 | Feb. 18, 2029 | 17,200 | Acquired |
| Aug. 9, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $27.10 | July 8, 2025 | 9,578 | Disposed |
| March 6, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $38.39 | Feb. 21, 2027 | 7,386 | Disposed |
| March 6, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 20,913 | Disposed |
| March 6, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $26.30 | Feb. 22, 2026 | 13,236 | Disposed |
| March 6, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $27.10 | July 8, 2025 | 19,156 | Disposed |
| Feb. 19, 2018 | BLD | Employee Stock Option (right to buy) | Common Stock | $74.50 | Feb. 19, 2028 | 12,390 | Acquired |
| Feb. 21, 2017 | BLD | Employee Stock Option (right to buy) | common stock | $38.39 | Feb. 21, 2027 | 22,160 | Acquired |
| Feb. 22, 2016 | BLD | Employee Stock Option | Common Stock | $26.30 | Feb. 22, 2026 | 31,370 | Acquired |
| Feb. 22, 2016 | BLD | Employee Stock Option | Common Stock | $26.30 | Feb. 22, 2026 | 33,090 | Acquired |
| July 8, 2015 | BLD | Employee Stock Option | Common | $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
| 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.