OneStream, Inc. (OS) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding January 10, 2026, OneStream's top three insider stakeholders include Chief Revenue Officer Ken Hohenstein (990.96K shares), Ceo And President Thomas Anthony Shea (469.24K shares), Other Craig Colby (388.01K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Ken Hohenstein Chief Revenue Officer 990,961 18 Dec, 2025
Thomas Anthony Shea Ceo And President 469,244 12 Dec, 2025
Craig Colby 388,010 12 Jun, 2025
Scott Leshinski President 291,981 05 Jan, 2026
William A Koefoed Chief Financial Officer 206,127 16 Dec, 2025
John Kinzer 131,737 04 Dec, 2025
Pamela Mcintyre Chief Accounting Officer 58,847 09 Jan, 2026
Baskar Sridharan 21,609 07 Oct, 2025
Michael Burkland 7,130 22 May, 2025
Kara Wilson 7,130 22 May, 2025
Jonathan D Mariner 7,130 08 Jan, 2026

* 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
08 Jan, 2026 Pamela Mcintyre Class A Common Stock D 6,505 $23.58 58,847 D S
06 Jan, 2026 Jonathan D Mariner Class A Common Stock D 2,415 $22.66 12,671 D S
06 Jan, 2026 Jonathan D Mariner Class A Common Stock D 5,541 $23.59 7,130 D S
01 Jan, 2026 Scott Leshinski Class A Common Stock A 149,202 $0.00 291,981 D A
01 Jan, 2026 Pamela Mcintyre Class A Common Stock A 18,989 $0.00 65,352 D A
19 Dec, 2025 John Kinzer - - 30,000 I
19 Dec, 2025 John Kinzer Class A Common Stock A 30,000 - 30,000 I C
16 Dec, 2025 Ken Hohenstein Class A Common Stock A 40,000 $10.65 1,030,961 D M
16 Dec, 2025 Ken Hohenstein Class A Common Stock D 40,000 $17.21 990,961 D S
15 Dec, 2025 William A Koefoed Class A Common Stock D 9,571 $17.73 206,127 D S
15 Dec, 2025 William A Koefoed - - 206,127 D
10 Dec, 2025 William A Koefoed Class A Common Stock D 6,285 $18.38 215,698 D F
10 Dec, 2025 Thomas Anthony Shea Class A Common Stock D 13,805 $18.38 469,244 D F
10 Dec, 2025 Thomas Anthony Shea - - 469,244 D
10 Dec, 2025 Ken Hohenstein Class A Common Stock D 6,101 $18.38 990,961 D F
02 Dec, 2025 Jonathan D Mariner Class A Common Stock D 18,423 $20.90 15,086 D S
02 Dec, 2025 John Kinzer Class A Common Stock A 94,607 $0.00 101,737 D A
02 Dec, 2025 John Kinzer - - 101,737 D
17 Nov, 2025 Ken Hohenstein Class A Common Stock A 40,000 $10.65 1,037,062 D M
17 Nov, 2025 Ken Hohenstein Class A Common Stock D 40,000 $20.94 997,062 D S