J MARINER KEMPER
CIK 1229109 · Chairman and CEO · last filed 2026-02-13
"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
$272.74M
Companies
3
Total Filings
333
Lifetime Open-Market Net
-$91.13M
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 |
|---|---|---|---|---|---|---|---|
| UMBFO | Chairman and CEO | 329,710 | $26.21 | $8.64M | -$6.54M | 11 | 2026-02-13 |
| UMB FINANCIAL CORP (UMBFP) Delisted | Chairman and CEO | 728,395 | $25.00 | $18.21M | -$931.1K | 9 | 2025-06-02 |
| UMBF | Chairman and CEO | 1,834,291 | $143.98 | $264.10M | -$83.66M | 308 | 2025-01-29 |
Recent Filings · Page 4 of 34
333 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 |
|---|---|---|---|---|---|
| 2024-08-05 | UMBF | Sell (S) | −124 | -$11.8K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −1,635 | -$155.1K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −1,578 | -$148.5K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −3,620 | -$339.3K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −4,345 | -$406.4K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −4,426 | -$413.1K | EDGAR |
| 2024-08-05 | UMBF | Mixed | +15,728 | $1.15M | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −9,217 | -$897.9K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −6,961 | -$681.2K | EDGAR |
| 2024-08-05 | UMBF | Sell (S) | −8,122 | -$788.9K | 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.