WK
Insider
William A Koefoed
Chief Financial OfficerWilliam A Koefoed (Chief Financial Officer) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in OS. The largest single filing was $170K of OS (9,571 sh × $17.73, as filed), executed Dec 15 2025. Data as of Nov 8 2026.
Add to watchlistReturn, 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
1
0 buys · 1 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$170K
shares × price, as filed
Last traded
Dec 15 2025
Filed Dec 16 2025
Volume by month
Buys $0
Sells $3.7M
Shares × price, as filed · by filing month · past 24 months
Most traded names
OS
OS
0 buys · 10 sells
10 filings
Recent filings
OSSALE
OneStream, Inc.
View filing →
$266K10,000 sh × $26.57
Exec Jan 15 2025
Filed Jan 17 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $413K
13,765 sh across 2 lots
Exec Dec 13 2024
Filed Dec 17 2024 · 5:30 PM ET