OneStream, Inc. (OS) Insider Ownership

Historic Insider Ownership Trends

OS's three largest insider shareholders as of April 28, 2026 are Craig Colby (President, 212.88K shares), William A Koefoed (Chief Financial Officer, 206.13K shares), Craig Colby (President, 175.12K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Craig Colby President 212,885 0 12 Jun, 2025
William A Koefoed Chief Financial Officer 206,127 0 16 Dec, 2025
Craig Colby President 0 175,125 26 Mar, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Dream Holdings Llc Kkr Class D Common Stock D 26,227,899 - 0 I J
01 Apr, 2026 Group Partnership L.P. Kkr Class D Common Stock D 26,227,899 - 0 I J
01 Apr, 2026 Tfo Partners L.P. Kkr Class D Common Stock D 26,227,899 - 0 I J
01 Apr, 2026 Ag Financing Lp K-Prime Class D Common Stock D 26,227,899 - 0 I J
01 Apr, 2026 Ngt (Dream) Blocker Parent L.P. Kkr Class D Common Stock D 26,227,899 - 0 I J
01 Apr, 2026 Dream Holdings Llc Kkr Class D Common Stock D 3,261,412 - 0 I J
01 Apr, 2026 Tfo Partners L.P. Kkr Class D Common Stock D 3,261,412 - 0 I J
01 Apr, 2026 Ngt (Dream) Blocker Parent L.P. Kkr Class D Common Stock D 3,261,412 - 0 I J
01 Apr, 2026 Ag Financing Lp K-Prime Class D Common Stock D 3,261,412 - 0 I J
01 Apr, 2026 Group Partnership L.P. Kkr Class D Common Stock D 3,261,412 - 0 I J
01 Apr, 2026 Ag Financing Lp K-Prime Class D Common Stock D 86,801 - 0 I J
01 Apr, 2026 Group Partnership L.P. Kkr Class D Common Stock D 86,801 - 0 I J
01 Apr, 2026 Ngt (Dream) Blocker Parent L.P. Kkr Class D Common Stock D 86,801 - 0 I J
01 Apr, 2026 Dream Holdings Llc Kkr Class D Common Stock D 86,801 - 0 I J
01 Apr, 2026 Tfo Partners L.P. Kkr Class D Common Stock D 86,801 - 0 I J
01 Apr, 2026 Ag Financing Lp K-Prime Class D Common Stock D 2,197,087 - 0 I J
01 Apr, 2026 Ngt (Dream) Blocker Parent L.P. Kkr Class D Common Stock D 2,197,087 - 0 I J
01 Apr, 2026 Tfo Partners L.P. Kkr Class D Common Stock D 2,197,087 - 0 I J
01 Apr, 2026 Dream Holdings Llc Kkr Class D Common Stock D 2,197,087 - 0 I J
01 Apr, 2026 Group Partnership L.P. Kkr Class D Common Stock D 2,197,087 - 0 I J