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JK
Insider

J Mariner Kemper

Chairman and CEO

J Mariner Kemper (Chairman and CEO) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 sales), most often in UMB Financial Corporation (UMBF). The largest single filing was $2.4M of UMBF (18,714 sh across 3 lots, as filed), executed Feb 2.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
4
0 buys · 4 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$7.0M
shares × price, as filed
Last traded
Aug 4
Filed Aug 6

Median ADV $100.4M across their filed names

Open performance
Volume by month
$3.0M$1.5M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $2.3MNov 2024 · sells $2.6MDec 2024 · sells $3.0MFeb 2025 · sells $315KJun 2025 · sells $551KAug 2025 · sells $1.8MSep 2025 · sells $426KDec 2025 · sells $1.8MFeb 2026 · sells $2.4MAug 2026 · sells $2.9M
Buys $0 Sells $18.1M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Financial Services 4 filings

Sector per market data · by filing · past 12 months

Most traded names
UMBF UMB Financial Corporation UMBF · 0 buys · 11 sells 11 filings
Recent filings
UMBFSALE UMB Financial Corporation View filing → $3.0M
24,300 sh across 2 lots
Exec Dec 2 2024
Filed Dec 4 2024 · 5:30 PM ET
UMBFSALE UMB Financial Corporation View filing → $2.6M
24,300 sh across 4 lots
Exec Nov 1 2024
Filed Nov 4 2024 · 5:30 PM ET
UMBFSALE UMB Financial Corporation View filing → $2.3M
22,800 sh across 2 lots
Exec Oct 1 2024
Filed Oct 2 2024 · 5:30 PM ET