Data spanning the past 90 days through February 19, 2026 reveals that OneStream's three principal insider shareholders consist of Chief Revenue Officer Ken Hohenstein (990.96K shares), Ceo And President Thomas Anthony Shea (469.24K shares), Other Craig Colby (388.01K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Ken Hohenstein | Chief Revenue Officer | 990,961 | 20 Jan, 2026 |
| 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Jan, 2026 | Ken Hohenstein | Class A Common Stock | A | 80,000 | $10.65 | 1,070,961 | D | M |
| 16 Jan, 2026 | Ken Hohenstein | Class A Common Stock | D | 120,000 | $23.63 | 990,961 | D | S |
| 16 Jan, 2026 | Ken Hohenstein | Class A Common Stock | A | 40,000 | $14.51 | 1,110,961 | D | M |
| 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 | 5,541 | $23.59 | 7,130 | D | S |
| 06 Jan, 2026 | Jonathan D Mariner | Class A Common Stock | D | 2,415 | $22.66 | 12,671 | 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 | D | 40,000 | $17.21 | 990,961 | D | S |
| 16 Dec, 2025 | Ken Hohenstein | Class A Common Stock | A | 40,000 | $10.65 | 1,030,961 | D | M |
| 15 Dec, 2025 | William A Koefoed | - | - | 206,127 | D | |||
| 15 Dec, 2025 | William A Koefoed | Class A Common Stock | D | 9,571 | $17.73 | 206,127 | D | S |
| 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 |