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Robert M Buck

CIK 1644960 · CEO · last filed 2026-07-01

Robert M Buck is a CEO who has filed 77 SEC Form 4 insider transactions across 2 companies since 2015. The most recent filing, for BLD, was dated Jul 1, 2026. Across all open-market trades the lifetime net is −$27.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $666.8K across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$666.8K

Companies

2

Total Filings

77

Lifetime Open-Market Net

-$27.84M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
TopBuild Corp (BLD) Delisted CEO 23,688 $354.53 $8.40M -$27.84M 63 2026-07-01
CNM Director 15,849 $42.07 $666.8K $0 5 2026-06-24

Recent Filings

77 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-07-01 TopBuild Corp (BLD) Delisted Disp (D) −74,387 $0 EDGAR
2026-06-24 CNM Grant (A) +2,799 $0 EDGAR
2026-02-18 TopBuild Corp (BLD) Delisted Grant (A) +10,734 $5.85M EDGAR
2025-12-12 TopBuild Corp (BLD) Delisted Sell (S) −5,000 -$2.27M EDGAR
2025-12-11 TopBuild Corp (BLD) Delisted Notice (144) −5,000 -$2.27M EDGAR
2025-11-10 TopBuild Corp (BLD) Delisted Sell (S) −5,000 -$2.09M EDGAR
2025-11-07 TopBuild Corp (BLD) Delisted Notice (144) −5,000 -$2.09M EDGAR
2025-08-08 TopBuild Corp (BLD) Delisted Sell (S) −7,350 -$3.05M EDGAR
2025-08-07 TopBuild Corp (BLD) Delisted Notice (144) −7,350 -$3.05M EDGAR
2025-06-26 CNM Grant (A) +2,189 $0 EDGAR
Showing 1–10 of 77
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.