Robert M Buck
CIK 1644960 · CEO · last filed 2026-07-01
"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 · Page 3 of 8
77 filingsInsider 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 |
|---|---|---|---|---|---|
| 2023-11-29 | TopBuild Corp (BLD) Delisted | Notice (144) | −4,500 | -$1.32M | EDGAR |
| 2023-08-14 | TopBuild Corp (BLD) Delisted | Notice (144) | −4,500 | -$1.36M | EDGAR |
| 2023-08-14 | TopBuild Corp (BLD) Delisted | Sell (S) | −4,500 | -$1.36M | EDGAR |
| 2023-06-30 | CNM | Grant (A) | +3,927 | $0 | EDGAR |
| 2023-06-15 | TopBuild Corp (BLD) Delisted | Mixed | −4,473 | -$1.07M | EDGAR |
| 2023-06-13 | TopBuild Corp (BLD) Delisted | Notice (144) | −7,682 | -$1.84M | EDGAR |
| 2023-02-23 | TopBuild Corp (BLD) Delisted | Grant (A) | +5,833 | $1.15M | EDGAR |
| 2023-02-23 | TopBuild Corp (BLD) Delisted | Grant (A) | +21,960 | $4.20M | EDGAR |
| 2022-09-07 | CNM | Grant (A) | +4,485 | $0 | EDGAR |
| 2022-05-19 | TopBuild Corp (BLD) Delisted | Exer (M) | — | $0 | EDGAR |
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.
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.