John T Herron
CIK 1478475 · President & CEO, Nuc Ops/CNO · last filed 2026-05-11
"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
$2.49M
Companies
3
Total Filings
34
Lifetime Open-Market Net
-$678.1K
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.
Recent Filings · Page 2 of 4
34 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-05-08 | DUKpA | Grant (A) | +1,992 | $160.0K | EDGAR |
| 2019-05-06 | DUKpA | Grant (A) | +1,781 | $160.0K | EDGAR |
| 2019-03-15 | DUKH | Gift (G) | −600 | $0 | EDGAR |
| 2018-05-07 | DUKH | Grant (A) | +2,006 | $160.0K | EDGAR |
| 2017-05-19 | DUKH | Mixed | −585 | $1.2K | EDGAR |
| 2017-05-08 | DUKH | Grant (A) | +1,937 | $160.0K | EDGAR |
| 2016-05-06 | DUKH | Grant (A) | +1,558 | $126.0K | EDGAR |
| 2015-05-11 | DUKH | Grant (A) | +1,627 | $125.0K | EDGAR |
| 2013-09-03 | DUKH | Buy (P) | +5,900 | $388.0K | EDGAR |
| 2013-05-06 | DUKH | Grant (A) | +1,979 | $146.3K | EDGAR |
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.