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Insider

David W Grzebinski

CEO · Kirby

David W Grzebinski (CEO) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Kirby Corporation (KEX). The largest single filing was $4.4M of KEX (34,152 sh × $130.05, as filed), executed Feb 24. Data as of Nov 8 2026.

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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
3
0 buys · 3 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$7.0M
shares × price, as filed
Last traded
Nov 2
Filed Nov 4

Median ADV $65.1M across their filed names

Open performance→
Volume by month
$4.4M$2.2M$0Dec 2024Jun 2025Dec 2025Jun 2026Nov 2025 · sells $3.2MFeb 2026 · sells $4.4MNov 2026 · sells $2.6M
Buys $0 Sells $10.2M

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

Sectors filed on
Industrials 3 filings

Sector per market data · by filing · past 12 months

Most traded names
KEX Kirby Corporation KEX · 0 buys · 3 sells 3 filings
Recent filings
KEXSALE Kirby Corporation View filing → $2.6M
18,310 sh × $141.32
Exec Nov 2
Filed Nov 4 · 11:22 AM ET KEXSALE Kirby Corporation View filing → $4.4M
34,152 sh × $130.05
Exec Feb 24
Filed Feb 26 · 5:30 PM ET KEXSALE Kirby Corporation View filing → $3.2M
29,451 sh × $107.41
Exec Nov 21 2025
Filed Nov 24 2025 · 5:30 PM ET