John Todd Koning
CIK 1830843 · CHIEF FINANCIAL OFFICER · last filed 2026-03-17
"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
$4.97M
Companies
2
Total Filings
23
Lifetime Open-Market Net
-$5.82M
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 3 of 3
23 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-12-20 | ATEC | Buy (P) | +5,000 | $55.9K | EDGAR |
| 2021-04-21 | ATEC | Grant (A) | +190,000 | $0 | EDGAR |
| 2021-03-02 | MASI | Grant (A) | — | $0 | EDGAR |
Showing 21–23 of 23
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Page 3 of 3
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.