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JOHN B WILLIAMSON III

CIK 1238836 · Chairman · last filed 2026-09-11

JOHN B WILLIAMSON III is a Chairman who has filed 265 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider bought $27.9K of RGCO on Sep 11, 2026. Across all open-market trades the lifetime net is +$503.8K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $6.0M across reported positions. 144 SEC filings were submitted jointly with RGC RESOURCES 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.

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Disclosed Exposure

$6.00M

Companies

4

Total Filings

265

Lifetime Open-Market Net

$503.8K

Filer Profile

Reported Address
PO BOX 13007
ROANOKE, VA 24030
Related Filers
RGC RESOURCES INC — 144 joint filings, latest 2026-09-02
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
RGCO Director 179,319 $21.28 $3.82M $485.4K 142 2026-09-11
OCC Director 164,119 $13.32 $2.19M $18.4K 14 2021-06-25
LUNA INNOVATIONS INC (LUNA) Delisted Director 278,176 $0.89 $247.3K $0 48 2020-04-02
OPTICAL CABLE CORP (OCCF) Delisted Director 40,853 — — $0 7 2010-05-04

Recent Filings

265 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
2026-09-11 RGCO Buy (P) +1,309 $27.9K EDGAR
2026-09-02 RGCO Buy (P) +1,000 $21.3K EDGAR
2025-11-05 RGCO Grant (A) +290 $6.1K EDGAR
2025-10-03 RGCO Grant (A) +269 $6.1K EDGAR
2025-09-03 RGCO Grant (A) +274 $6.1K EDGAR
2025-08-05 RGCO Grant (A) +308 $6.1K EDGAR
2025-07-03 RGCO Grant (A) +265 $6.1K EDGAR
2025-06-04 RGCO Grant (A) +296 $6.1K EDGAR
2025-05-05 RGCO Grant (A) +287 $6.1K EDGAR
2025-04-03 RGCO Grant (A) +288 $6.1K EDGAR
Showing 1–10 of 265
Page 1 of 27
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.