OneStream, Inc. Class A Common Stock OS NASDAQ

NASDAQ Global Select • Technology • Software - Application • US • USD

SharesGrow Score

45/100

1/7 Pass

SharesGrow Intrinsic Value

OneStream, Inc. Class A Common Stock (OS) has 18 known insider and institutional holders on record. The largest holder is Shea Thomas Anthony with 4,330,215 shares. Other notable holders include Hohenstein Ken and Leshinski Scott.

Over the last 12 months, insiders have made 51 transactions in OS stock — 11 buys (valued at RSU Award) and 12 sells (valued at $1.97M). Insider selling has exceeded buying during this period.

OS Insider Ownership

Top Holder

Shea Thomas Anthony

4,330,215 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$1.97M value

12-Month Transaction Activity

Buy 22%

Sell 24%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Shea Thomas Anthony	10 Percent Owner, Officer: CEO	4,330,215	2026-03-26	100%
2	Hohenstein Ken	Chief Revenue Officer	1,030,571	2026-03-20	24%
3	Leshinski Scott	President	378,458	2026-03-20	9%
4	Colby Craig	Other: Former 10% Owner	212,885	2025-06-12	5%
5	Koefoed William A	Chief Financial Officer	206,127	2025-12-16	5%
6	Mcintyre Pamela	Chief Accounting Officer	100,800	2026-03-20	2%
7	Wilson Kara	Director	7,130	2025-05-22	0%
8	Kinzer John	Director	7,130	2025-05-22	0%
9	Burkland Michael	Director	7,130	2025-05-22	0%
10	Mariner Jonathan D	Director	7,130	2026-01-08	0%
11	Wilcox Brett	Director	2,678	2006-08-01	0%
12	Demorest Harry L	Director	2,678	2006-08-01	0%
13	Gantt Robin A	Corporate Controller	2,666	2006-05-02	0%
14	Kkr Dream Holdings Llc	10 Percent Owner	1,704	2024-11-29	0%
15	Kkr Ngt (dream) Blocker Parent L.p.	10 Percent Owner	1,704	2024-11-29	0%
16	Kkr Group Partnership L.p.	10 Percent Owner	1,704	2024-11-29	0%
17	Kkr Tfo Partners L.p.	10 Percent Owner	1,704	2024-11-29	0%
18	Foster David A	Director	632	2006-08-16	0%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-04-01	Mcintyre Pamela	Chief Accounting Officer	Return of Shares	35,930	$14.51	$521.34K
2026-04-01	Leshinski Scott	President	Return of Shares	26,037	$16.40	$427.01K
2026-04-01	Sridharan Baskar	Director	Return of Shares	21,609	$24.00	$518.62K
2026-04-01	Hohenstein Ken	Chief Revenue Officer	Return of Shares	464,002	-	-
2026-04-01	Shea Thomas Anthony	10 Percent Owner, Officer: CEO	Return of Shares	92,992	$20.00	$1.86M
2026-04-01	Kinzer John	See Remarks	Return of Shares	128,225	$20.00	$2.56M
2026-04-01	Burkland Michael	Director	Return of Shares	169,257	$20.00	$3.39M
2026-04-01	Wilson Kara	Director	Return of Shares	134,913	$20.00	$2.7M
2026-04-01	Mariner Jonathan D	Director	Return of Shares	134,913	$20.00	$2.7M
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	-	-
2026-03-19	Mcintyre Pamela	Chief Accounting Officer	RSU Award	45,000	-	-
2026-03-19	Leshinski Scott	President	RSU Award	100,000	-	-
2026-03-19	Hohenstein Ken	Chief Revenue Officer	RSU Award	45,000	-	-
2026-03-17	Hohenstein Ken	Chief Revenue Officer	Option Exercise (Sell)	10,000	$10.65	$106.5K
2026-03-16	Hohenstein Ken	Chief Revenue Officer	Option Exercise (Sell)	9,204	$10.65	$98.02K
2026-03-11	Mcintyre Pamela	Chief Accounting Officer	Informative Sell	2,015	$23.68	$47.72K
2026-03-10	Mcintyre Pamela	Chief Accounting Officer	Tax Withholding of RSU	1,032	$23.70	$24.46K
2026-03-11	Leshinski Scott	President	Informative Sell	7,412	$23.68	$175.52K
2026-03-10	Leshinski Scott	President	Tax Withholding of RSU	6,111	$23.70	$144.83K
2026-03-10	Hohenstein Ken	Chief Revenue Officer	Tax Withholding of RSU	5,390	$23.70	$127.74K
2026-03-10	Shea Thomas Anthony	10 Percent Owner, Officer: CEO	Tax Withholding of RSU	9,258	$23.70	$219.41K
2026-02-17	Hohenstein Ken	Chief Revenue Officer	Option Exercise (Sell)	10,000	$10.65	$106.5K
2026-01-16	Hohenstein Ken	Chief Revenue Officer	Option Exercise (Sell)	50,000	$10.65	$532.5K
2026-01-08	Mcintyre Pamela	Chief Accounting Officer	Informative Sell	6,505	$23.58	$153.39K