Steven O Vondran
CIK 1749304 · President and CEO · last filed 2026-03-12
"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
$22.44M
Companies
2
Total Filings
43
Lifetime Open-Market Net
-$18.28M
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 5
43 filingsInsider 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 |
|---|---|---|---|---|---|
| 2021-09-08 | AMT | Tax (F) | −196 | -$59.2K | EDGAR |
| 2021-07-14 | AMT | Sell (S) | −8,862 | -$2.47M | EDGAR |
| 2021-03-15 | AMT | Tax (F) | −785 | -$168.9K | EDGAR |
| 2021-03-12 | AMT | Mixed | +5,992 | -$461.3K | EDGAR |
| 2020-12-03 | AMT | Mixed | — | -$226.2K | EDGAR |
| 2020-11-04 | AMT | Mixed | — | -$227.1K | EDGAR |
| 2020-10-05 | AMT | Mixed | — | -$241.5K | EDGAR |
| 2020-09-09 | AMT | Tax (F) | −198 | -$49.5K | EDGAR |
| 2020-09-03 | AMT | Mixed | — | -$250.9K | EDGAR |
| 2020-08-05 | AMT | Sell (S) | −1,334 | -$345.5K | EDGAR |
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.
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.