Koefoed William A
Chief Financial Officer
Koefoed William A has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company, with disclosures dating back to 2025. 2 of those filings fall inside the rolling window. Most recent filing: Dec 16, 2025.
On the most recent filing, Koefoed William A is listed as Chief Financial Officer at OneStream, Inc. Inside the rolling window, Koefoed William A reported no open-market purchases and 1 open-market sale totaling $170K in OS.
Companies traded
Other insiders at OS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$170K
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 15, 2025 | OS | Sale | $170K |
Frequently asked questions
How many SEC Form 4 filings has Koefoed William A made?
Koefoed William A has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company since 2025.
Which companies does Koefoed William A trade?
Koefoed William A has filed SEC Form 4 disclosures for 1 company, including OS.
When was Koefoed William A's most recent SEC Form 4 filing?
Koefoed William A's most recent SEC Form 4 filing on Tracefour is dated Dec 16, 2025.
What is Koefoed William A's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Koefoed William A is listed as Chief Financial Officer.
What is Koefoed William A's total buy and sell value in the current window?
Inside the rolling retention window, Koefoed William A bought $0 and sold $170K based on SEC Form 4 filings.
What was Koefoed William A's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 9,571 OS shares on 2025-12-15, worth $170K, per SEC Form 4 filings.