OS · Insider Trading
OneStream, Inc. Class A Common Stock
Every open-market purchase and sale reported by OS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-02 | Kara Wilson | Director | D | −7,130 | — |
| 2026-04-02 | Michael Burkland | Director | D | −7,130 | — |
| 2026-04-02 | Jonathan D Mariner | Director | D | −7,130 | — |
| 2026-04-02 | Pamela McIntyre | Chief Accounting Officer | D | −100,800 | — |
| 2026-04-02 | Ken Hohenstein | Chief Revenue Officer | D | −1,820,850 | — |
| 2026-04-02 | John Kinzer | See Remarks | D | −131,737 | — |
| 2026-04-02 | Scott Leshinski | President | D | −378,458 | — |
| 2026-04-02 | Baskar Sridharan | Director | D | −21,609 | — |
| 2026-04-02 | Thomas Anthony Shea | CEO | D | −459,986 | — |
| 2026-03-26 | Thomas Anthony Shea | CEO | G | — | — |
| 2026-03-20 | Pamela McIntyre | Chief Accounting Officer | A | +45,000 | — |
| 2026-03-20 | Scott Leshinski | President | A | +100,000 | — |
| 2026-03-20 | Ken Hohenstein | Chief Revenue Officer | A | +45,000 | — |
| 2026-03-18 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$611.51K |
| 2026-03-12 | Thomas Anthony Shea | CEO | F | −9,258 | −$219.41K |
| 2026-03-12 | Scott Leshinski | President | MIXED | −13,523 | −$320.35K |
| 2026-03-12 | Ken Hohenstein | Chief Revenue Officer | F | −5,390 | −$127.74K |
| 2026-03-12 | Pamela McIntyre | Chief Accounting Officer | MIXED | −3,047 | −$72.17K |
| 2026-02-19 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$614.20K |
| 2026-01-20 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$1.40M |
| 2026-01-09 | Pamela McIntyre | Chief Accounting Officer | Sell | −6,505 | −$153.39K |
| 2026-01-08 | Jonathan D Mariner | Director | Sell | −7,956 | −$185.44K |
| 2026-01-05 | Pamela McIntyre | Chief Accounting Officer | A | +18,989 | — |
| 2026-01-05 | Scott Leshinski | President | A | +149,202 | — |
| 2025-12-23 | John Kinzer | Director | C | +30,000 | — |
| 2025-12-18 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$262.40K |
| 2025-12-16 | William A Koefoed | Chief Financial Officer | Sell | −9,571 | −$169.69K |
| 2025-12-12 | William A Koefoed | Chief Financial Officer | F | −6,285 | −$115.52K |
| 2025-12-12 | Thomas Anthony Shea | CEO and President | F | −13,805 | −$253.74K |
| 2025-12-12 | Ken Hohenstein | Chief Revenue Officer | F | −6,101 | −$112.14K |
| 2025-12-04 | Jonathan D Mariner | Director | Sell | −18,423 | −$385.04K |
| 2025-12-04 | John Kinzer | Director | A | +94,607 | — |
| 2025-11-19 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$411.60K |
| 2025-10-17 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$247.97K |
| 2025-10-07 | Baskar Sridharan | Director | A | +21,609 | — |
| 2025-09-22 | John Kinzer | Director | MIXED | — | −$600.00K |
| 2025-09-18 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$321.60K |
| 2025-09-16 | William A Koefoed | Chief Financial Officer | Sell | −8,943 | −$170.19K |
| 2025-09-12 | Thomas Anthony Shea | CEO and President | F | −13,805 | −$273.20K |
| 2025-09-12 | William A Koefoed | Chief Financial Officer | F | −6,913 | −$136.81K |
| 2025-09-12 | Ken Hohenstein | Chief Revenue Officer | F | −6,101 | −$120.74K |
| 2025-09-04 | Jonathan D Mariner | Director | Sell | −141 | −$2.83K |
| 2025-08-20 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$218.20K |
| 2025-08-06 | Jonathan D Mariner | Director | Sell | −6,630 | −$156.00K |
| 2025-07-28 | William A Koefoed | Chief Financial Officer | MIXED | — | −$358.75K |
| 2025-07-21 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$289.40K |
| 2025-07-09 | Jonathan D Mariner | Director | Sell | −6,630 | −$176.29K |
| 2025-06-27 | William A Koefoed | Chief Financial Officer | MIXED | — | −$403.00K |
| 2025-06-24 | John Kinzer | Director | MIXED | — | −$847.83K |
| 2025-06-23 | Ken Hohenstein | Chief Revenue Officer | MIXED | — | −$352.60K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Craig Colby | President | 388,010 | $9.31M |
| William A Koefoed | Chief Financial Officer | 206,127 | $4.95M |
| Kohlberg Kravis Roberts & Co. L.P. | 10%+ Owner | 104,100 | $2.50M |
| Michael Burkland | Director | 9,541 | $228.98K |
| KKR Associates NGT L.P. | 10%+ Owner | 1,704 | $40.90K |
| Jonathan D Mariner | Director | 787 | $18.89K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the OS quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.