William Bradley Southern
CIK 1549626 · Chief Executive Officer · last filed 2026-09-25
William Bradley Southern is a Chief Executive Officer who has filed 90 SEC Form 4 insider transactions across 5 companies since 2013. The most recent filing, for WOR, was dated Sep 25, 2026. Across all open-market trades the lifetime net is −$18.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $91.3M across reported positions. 2 SEC filings were submitted jointly with WORTHINGTON ENTERPRISES, INC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
NBN price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
NASHVILLE, TN 37203
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| WOR | Director | 3,215 | $62.45 | $200.8K | $0 | 2 | 2026-09-25 |
| NBN | Chief Executive Officer | 451,546 | $125.99 | $56.89M | -$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 | $38.71 | $437.1K | $0 | 15 | 2023-12-04 |
| LPX | Chief Executive Officer | 514,153 | $65.69 | $33.77M | -$506.7K | 37 | 2022-05-10 |
Recent Filings
90 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-25 | WOR | Grant (A) | +2,510 | $0 | EDGAR |
| 2026-07-07 | WOR | Grant (A) | +705 | $0 | EDGAR |
| 2026-02-18 | NBN | Sell (S) | −28,332 | -$2.51M | EDGAR |
| 2026-02-17 | LPX | Notice (144) | −28,332 | -$2.52M | EDGAR |
| 2026-02-17 | NBN | Mixed | +23,016 | -$1.77M | EDGAR |
| 2026-02-11 | NBN | Tax (F) | −3,919 | -$378.5K | EDGAR |
| 2026-02-10 | NBN | Tax (F) | −3,968 | -$384.8K | EDGAR |
| 2026-02-04 | NBN | Sell (S) | −28,332 | -$2.48M | EDGAR |
| 2026-02-03 | LPX | Notice (144) | −21,252 | -$1.90M | EDGAR |
| 2026-02-02 | LPX | Notice (144) | −7,080 | -$600.1K | EDGAR |
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.