William Bradley Southern
CIK 1549626 · Chief Executive Officer · last filed 2026-07-07
"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
$93.92M
Companies
5
Total Filings
89
Lifetime Open-Market Net
-$18.71M
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 |
|---|---|---|---|---|---|---|---|
| WOR | Director | 705 | $56.21 | $39.6K | $0 | 1 | 2026-07-07 |
| NBN | Chief Executive Officer | 451,546 | $124.17 | $56.07M | -$18.20M | 25 | 2026-02-18 |
| GMS Inc. (GMS) Delisted | Director | 1,776 | $109.96 | $195.3K | $0 | 4 | 2025-08-05 |
| ASTE | Director | 11,292 | $50.66 | $572.1K | $0 | 15 | 2023-12-04 |
| LPX | Chief Executive Officer | 514,153 | $72.43 | $37.24M | -$506.7K | 37 | 2022-05-10 |
Recent Filings · Page 4 of 9
89 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 |
|---|---|---|---|---|---|
| 2024-02-09 | NBN | Tax (F) | −853 | -$60.3K | EDGAR |
| 2024-01-23 | GMS Inc. (GMS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-12-04 | ASTE | Grant (A) | +11 | $0 | EDGAR |
| 2023-08-31 | ASTE | Grant (A) | +7 | $0 | EDGAR |
| 2023-08-11 | NBN | Gift (G) | −6,174 | $0 | EDGAR |
| 2023-06-01 | ASTE | Grant (A) | +9 | $0 | EDGAR |
| 2023-05-22 | NBN | Mixed | +9,644 | -$396.4K | EDGAR |
| 2023-04-27 | ASTE | Grant (A) | +2,717 | $0 | EDGAR |
| 2023-04-03 | ASTE | Grant (A) | +9 | $0 | EDGAR |
| 2023-02-14 | NBN | Mixed | +90,046 | $5.91M | 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.