Onestream, INC Form 4 insider transactions

William A. Koefoed has transitioned from Chief Financial Officer of OneStream, Inc. to a Senior Advisor role, effective December 31, 2025.

OneStream Director John Kinzer converted 30,000 Class D Common Stock shares into Class A Common Stock, following a redemption of Common Units, as part of a pre-planned transaction.

OneStream's Chief Revenue Officer, Ken Hohenstein, exercised stock options and subsequently sold 40,000 shares of Class A Common Stock.

OneStream, Inc.'s Chief Financial Officer, William A. Koefoed, sold 9,571 shares of Class A Common Stock for $17.73 per share under a pre-arranged trading plan.

OneStream CEO Thomas Anthony Shea reported a disposition of 13,805 Class A Common Stock shares for tax withholding purposes related to restricted stock units.

OneStream's Chief Financial Officer, William A. Koefoed, reported a disposition of 6,285 Class A Common Stock shares to satisfy tax withholding obligations.

OneStream's Chief Revenue Officer, Ken Hohenstein, reported a disposition of 6,101 Class A Common Stock shares for tax withholding related to restricted stock unit vesting.

OneStream, Inc. granted 94,607 restricted stock units to Director John Kinzer, tied to his new roles as Strategic Advisor and interim CFO.

OneStream Director Jonathan D Mariner sold 18,423 shares of Class A Common Stock for a weighted average price of $20.9 per share on December 2, 2025, pursuant to a pre-arranged trading plan.

OneStream's Chief Revenue Officer, Ken Hohenstein, sold 40,000 shares of Class A Common Stock for $20.94 per share after exercising options at $10.65.

OneStream's Chief Revenue Officer, Ken Hohenstein, exercised stock options and subsequently sold a portion of his Class A Common Stock holdings on October 16, 2025, under a pre-arranged 10b5-1 trading plan.

OneStream Director Baskar Sridharan was granted 21,609 restricted stock units, vesting over three years.

OneStream Director John Kinzer executed a planned sale of 30,000 Class A Common Stock shares for $600,000 following a conversion from Class D shares.

OneStream's Chief Revenue Officer, Ken Hohenstein, exercised stock options and subsequently sold 40,000 shares of Class A Common Stock for a weighted average price of $18.69 per share.

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.

OneStream's CFO, William A Koefoed, reported a routine tax withholding of 6,913 shares of Class A Common Stock related to restricted stock units.

OneStream CEO Thomas Anthony Shea reported a disposition of 13,805 shares of Class A Common Stock for tax withholding purposes related to restricted stock unit vesting.

OneStream's Chief Revenue Officer, Ken Hohenstein, reported the disposition of 6,101 Class A Common Stock shares for tax withholding purposes related to restricted stock units.

OneStream, Inc. Director Jonathan D. Mariner sold 141 shares of Class A Common Stock for $20.07 per share under a pre-arranged trading plan.

OneStream's Chief Revenue Officer, Ken Hohenstein, exercised stock options and subsequently sold an equal number of shares under a pre-arranged trading plan.

OneStream Director Jonathan D. Mariner sold 6,630 shares of Class A Common Stock for $23.53 per share under a pre-arranged Rule 10b5-1 trading plan.

OneStream, Inc.'s Chief Financial Officer, William A. Koefoed, executed a pre-planned transaction, exercising stock options and selling 25,000 shares of Class A Common Stock.

OneStream, Inc.'s Chief Revenue Officer, Ken Hohenstein, executed a pre-planned transaction on July 18, 2025, involving the exercise of stock options and the sale of an equivalent number of Class A Common Stock shares.

OneStream, Inc. Director Jonathan D. Mariner sold 6,630 shares of Class A Common Stock at a weighted average price of $26.59 per share on July 7, 2025, pursuant to a Rule 10b5-1 trading plan.

OneStream, Inc.'s Chief Financial Officer, William A. Koefoed, completed a pre-arranged transaction involving the exercise of stock options and the subsequent sale of Class A Common Stock on June 25, 2025, as disclosed in a recent SEC Form 4 filing.

OneStream, Inc. Director John Kinzer reported the conversion of 30,000 Class D shares into Class A shares and the subsequent sale of all 30,000 Class A shares for approximately $847,467, executed under a pre-arranged trading plan.

OneStream's Chief Revenue Officer, Ken Hohenstein, exercised stock options and sold a portion of his Class A Common Stock holdings, as disclosed in a recent SEC Form 4 filing.

OneStream, Inc.'s Chief Financial Officer, William A. Koefoed, sold 9,354 shares of Class A Common Stock for $27.9 per share on June 16, 2025, as part of a pre-arranged 10b5-1 trading plan.

OneStream, Inc.'s Chief Financial Officer, William A. Koefoed, sold 6,501 shares of Class A Common Stock for $28.23 per share to satisfy tax withholding obligations related to restricted stock unit vesting.

OneStream, Inc.'s Chief Revenue Officer, Ken Hohenstein, sold 6,280 shares of Class A Common Stock for $28.23 per share to satisfy statutory tax withholding obligations related to restricted stock unit vesting.