There have been 50 recent insider transactions recorded for OneStream, Inc. Class A Common Stock (OS), including 10 buys and 35 sells. Total insider buying was valued at RSU Award and total insider selling at $20.07M.
Notable insiders with recent activity include Mariner Jonathan D, Wilson Kara, Burkland Michael. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — OS
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Mariner Jonathan D |
Director |
Return of Shares |
134,913 |
$20.00 |
$2.7M |
- |
| 2026-04-01 |
Wilson Kara |
Director |
Return of Shares |
134,913 |
$20.00 |
$2.7M |
- |
| 2026-04-01 |
Burkland Michael |
Director |
Return of Shares |
169,257 |
$20.00 |
$3.39M |
- |
| 2026-04-01 |
Kinzer John |
See Remarks |
Return of Shares |
128,225 |
$20.00 |
$2.56M |
- |
| 2026-04-01 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO |
Return of Shares |
92,992 |
$20.00 |
$1.86M |
- |
| 2026-04-01 |
Hohenstein Ken |
Chief Revenue Officer |
Return of Shares |
464,002 |
- |
- |
- |
| 2026-04-01 |
Sridharan Baskar |
Director |
Return of Shares |
21,609 |
$24.00 |
$518.62K |
- |
| 2026-04-01 |
Leshinski Scott |
President |
Return of Shares |
26,037 |
$16.40 |
$427.01K |
- |
| 2026-04-01 |
Mcintyre Pamela |
Chief Accounting Officer |
Return of Shares |
35,930 |
$14.51 |
$521.34K |
- |
| 2026-03-25 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO |
Gift (Given) |
4,330,215 |
- |
- |
- |
| 2026-03-24 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO |
Gift (Received) |
4,330,215 |
- |
- |
4,330,215 |
| 2026-03-19 |
Hohenstein Ken |
Chief Revenue Officer |
RSU Award |
45,000 |
- |
- |
1,030,571 |
| 2026-03-19 |
Leshinski Scott |
President |
RSU Award |
100,000 |
- |
- |
378,458 |
| 2026-03-19 |
Mcintyre Pamela |
Chief Accounting Officer |
RSU Award |
45,000 |
- |
- |
100,800 |
| 2026-03-17 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
10,000 |
$10.65 |
$106.5K |
128,508 |
| 2026-03-16 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
9,204 |
$10.65 |
$98.02K |
6 |
| 2026-03-11 |
Leshinski Scott |
President |
Informative Sell |
7,412 |
$23.68 |
$175.52K |
278,458 |
| 2026-03-11 |
Mcintyre Pamela |
Chief Accounting Officer |
Informative Sell |
2,015 |
$23.68 |
$47.72K |
55,800 |
| 2026-03-10 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO |
Tax Withholding of RSU |
9,258 |
$23.70 |
$219.41K |
459,986 |
| 2026-03-10 |
Hohenstein Ken |
Chief Revenue Officer |
Tax Withholding of RSU |
5,390 |
$23.70 |
$127.74K |
985,571 |
| 2026-03-10 |
Leshinski Scott |
President |
Tax Withholding of RSU |
6,111 |
$23.70 |
$144.83K |
285,870 |
| 2026-03-10 |
Mcintyre Pamela |
Chief Accounting Officer |
Tax Withholding of RSU |
1,032 |
$23.70 |
$24.46K |
57,815 |
| 2026-02-17 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
10,000 |
$10.65 |
$106.5K |
9,210 |
| 2026-01-16 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
50,000 |
$10.65 |
$532.5K |
19,210 |
| 2026-01-08 |
Mcintyre Pamela |
Chief Accounting Officer |
Informative Sell |
6,505 |
$23.58 |
$153.39K |
58,847 |
| 2026-01-06 |
Mariner Jonathan D |
Director |
Informative Sell |
5,541 |
$23.59 |
$130.71K |
7,130 |
| 2026-01-01 |
Leshinski Scott |
President |
Unknown |
20,000 |
$12.71 |
$254.2K |
- |
| 2026-01-01 |
Leshinski Scott |
President |
RSU Award |
149,202 |
- |
- |
291,981 |
| 2026-01-01 |
Mcintyre Pamela |
Chief Accounting Officer |
Unknown |
11,463 |
$4.41 |
$50.55K |
- |
| 2026-01-01 |
Mcintyre Pamela |
Chief Accounting Officer |
RSU Award |
18,989 |
- |
- |
65,352 |
| 2025-12-31 |
Koefoed William A |
Officer |
Unknown |
- |
- |
- |
- |
| 2025-12-19 |
Kinzer John |
Other: Strategic Advisor |
Conversion (Sell) |
30,000 |
- |
- |
- |
| 2025-12-16 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
30,000 |
$10.65 |
$319.5K |
69,210 |
| 2025-12-15 |
Koefoed William A |
Chief Financial Officer |
Informative Sell |
9,571 |
$17.73 |
$169.69K |
206,127 |
| 2025-06-20 |
Kinzer John |
Director |
Informative Sell |
1,100 |
$28.81 |
$31.69K |
- |
| 2025-06-18 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
20,000 |
$10.65 |
$213K |
258,508 |
| 2025-06-16 |
Koefoed William A |
Chief Financial Officer |
Informative Sell |
9,354 |
$27.90 |
$260.98K |
237,839 |
| 2025-06-11 |
Koefoed William A |
Chief Financial Officer |
Informative Sell |
6,501 |
$28.23 |
$183.52K |
247,193 |
| 2025-06-11 |
Colby Craig |
Other: Former 10% Owner |
Informative Sell |
6,279 |
$28.23 |
$177.26K |
212,885 |
| 2025-06-11 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO and President |
Informative Sell |
9,913 |
$28.23 |
$279.84K |
496,854 |
| 2025-06-11 |
Hohenstein Ken |
Chief Revenue Officer |
Informative Sell |
6,280 |
$28.23 |
$177.28K |
1,003,163 |
| 2025-06-10 |
Shea Thomas Anthony |
10 Percent Owner, Officer: CEO and President |
Conversion (Buy) |
150 |
- |
- |
506,767 |
| 2025-06-02 |
Mariner Jonathan D |
Director |
Informative Sell |
6,631 |
$27.90 |
$185K |
46,910 |
| 2025-05-27 |
Koefoed William A |
Chief Financial Officer |
Option Exercise (Sell) |
25,000 |
$10.65 |
$266.25K |
220,481 |
| 2025-05-21 |
Mariner Jonathan D |
Director |
RSU Award |
7,130 |
- |
- |
53,541 |
| 2025-05-21 |
Wilson Kara |
Director |
RSU Award |
7,130 |
- |
- |
7,130 |
| 2025-05-21 |
Burkland Michael |
Director |
RSU Award |
7,130 |
- |
- |
7,130 |
| 2025-05-21 |
Kinzer John |
Director |
RSU Award |
7,130 |
- |
- |
7,130 |
| 2025-05-19 |
Hohenstein Ken |
Chief Revenue Officer |
Option Exercise (Sell) |
20,000 |
$10.65 |
$213K |
278,508 |
| 2025-05-09 |
Colby Craig |
10 Percent Owner |
Option Exercise (Sell) |
98,894 |
$10.65 |
$1.05M |
71,023 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
