William A Koefoed

Chief Financial Officer

William 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.

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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

0 buys · 1 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$170K

shares × price, as filed

Last traded

Dec 15 2025

Filed Dec 16 2025

Open performance→

Volume by month

Buys $0 Sells $3.7M

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

Sectors filed on

Not on file 1 filing

Sector per market data · by filing · past 12 months

Most traded names

OS OS OS · 0 buys · 10 sells 10 filings

Recent filings

OSSALE OneStream, Inc. View filing → $170K
9,571 sh × $17.73
Exec Dec 15 2025
Filed Dec 16 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $170K
8,943 sh × $19.03
Exec Sep 15 2025
Filed Sep 16 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $625K
25,000 sh × $25.00
Exec Jul 25 2025
Filed Jul 28 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $669K
25,000 sh × $26.77
Exec Jun 25 2025
Filed Jun 27 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $261K
9,354 sh × $27.90
Exec Jun 16 2025
Filed Jun 18 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $184K
6,501 sh × $28.23
Exec Jun 11 2025
Filed Jun 12 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $719K
25,000 sh × $28.76
Exec May 27 2025
Filed May 29 2025 · 5:30 PM ET OSSALE OneStream, Inc. View filing → $250K
10,000 sh × $25.04
Exec Feb 18 2025
Filed Feb 20 2025 · 5:30 PM ET More filings →