William R Thomas III
CIK 1369011 · Vice President · last filed 2026-10-01
William R Thomas III is a Vice President who has filed 56 SEC Form 4 insider transactions across 3 companies since 2008. The most recent filing shows the insider bought $50.0K of CSWC on Oct 1, 2026. Across all open-market trades the lifetime net is −$10.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $13.3M across reported positions. 52 SEC filings were submitted jointly with CAPITAL SOUTHWEST CORP.
"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.
CSWC 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
SUITE 700
DALLAS, TX 75230
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CSWC | Director | 594,781 | $22.38 | $13.31M | -$10.88M | 40 | 2026-10-01 |
| CAPITAL SOUTHWEST CORP (CSWCZ) Delisted | Director | 590,283 | $25.37 | $14.98M | $243.1K | 4 | 2025-08-13 |
| ENCORE WIRE CORP (WIRE) Delisted | Director | 1,250 | $289.84 | $362.3K | $156.1K | 11 | 2024-07-02 |
Recent Filings
56 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-01 | CSWC | Buy (P) | +2,170 | $50.0K | EDGAR |
| 2026-08-12 | CSWC | Grant (A) | +1,989 | $0 | EDGAR |
| 2026-06-05 | CSWC | Notice (144) | −4,661 | -$108.6K | EDGAR |
| 2026-06-05 | CSWC | Mixed | +339 | $8.4K | EDGAR |
| 2025-08-13 | CAPITAL SOUTHWEST CORP (CSWCZ) Delisted | Grant (A) | +2,193 | $0 | EDGAR |
| 2024-08-13 | CAPITAL SOUTHWEST CORP (CSWCZ) Delisted | Grant (A) | +2,090 | $0 | EDGAR |
| 2024-07-02 | ENCORE WIRE CORP (WIRE) Delisted | Mixed | −13,600 | -$362.5K | EDGAR |
| 2024-06-04 | CAPITAL SOUTHWEST CORP (CSWCZ) Delisted | Mixed | +1,183 | $243.1K | EDGAR |
| 2024-05-08 | ENCORE WIRE CORP (WIRE) Delisted | Grant (A) | +1,250 | $0 | EDGAR |
| 2023-08-11 | CAPITAL SOUTHWEST CORP (CSWCZ) Delisted | Grant (A) | +2,240 | $0 | 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.