Form 4: OneStream CFO Sells Shares Under 10b5-1 Plan

OneStream's Chief Financial Officer, William A. Koefoed, sold 8,943 shares of Class A Common Stock for $19.03 per share on September 15, 2025, under a pre-arranged trading plan.

Summary

• William A. Koefoed, Chief Financial Officer of OneStream, Inc. (OS), reported a sale of company stock.
• The transaction involved the disposition of 8,943 shares of Class A Common Stock.
• The shares were sold at a price of $19.03 per share.
• The sale occurred on September 15, 2025.
• This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by Mr. Koefoed on February 21, 2025.
• Following the sale, Mr. Koefoed beneficially owns 221,983 shares, which include unvested restricted stock units.

Sentiment

Score: 4

Explanation: The filing reports an insider sale of shares by the Chief Financial Officer. While executed under a pre-planned 10b5-1 trading plan, which reduces the implication of opportunistic selling, any insider sale can be perceived with slight caution by the market.

Positives

• The sale was conducted under a Rule 10b5-1 trading plan, indicating a pre-scheduled transaction rather than an immediate reaction to new information, which can mitigate concerns about opportunistic insider selling.

Negatives

• A significant insider sale of 8,943 shares by a key executive (CFO) could be interpreted by some investors as a slightly negative signal, despite being pre-planned.

Risks

• No specific new risks are introduced by this Form 4 filing itself, as it reports a routine insider transaction.

Future Outlook

NA

Industry Context

NA

Comparison to Industry Standards

• NA

Stakeholder Impact

• Shareholders: May interpret the insider sale as a neutral to slightly negative signal, though the 10b5-1 plan mitigates concerns about the timing of the sale.

Next Steps

• NA

Key Dates

Recommendation

The reported insider sale by the Chief Financial Officer, while notable, was executed under a pre-arranged Rule 10b5-1 trading plan. This suggests a planned liquidity event rather than a reaction to new material non-public information. As such, this single transaction does not fundamentally alter the investment thesis for OneStream, Inc., warranting a 'hold' recommendation based solely on this filing.

Keywords

OneStream, OS, insider trading, Form 4, William A Koefoed, CFO, stock sale, 10b5-1 plan