Comparable stake leader
KKR Dream Holdings LLC
SEC ownership of OneStream, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001889956.
Disclosed value leader
KKR Dream Holdings LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
KKR Dream Holdings LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
KKR Dream Holdings LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001889956
- Issuer location
- Birmingham, MI
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of OneStream, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
KKR Dream Holdings LLC
Disclosed value leader
KKR Dream Holdings LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 68%
13D/G row: KKR Dream Holdings LLC
Showing 1-8 of 50 holder rows.
Quick read
KKR Dream Holdings LLC leads the comparable SEC ownership view at 68%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens KKR Dream Holdings LLC's linked filing trail.
Comparable ownership
Top 5
KKR Dream Holdings LLC
68%
Thomas Anthony Shea
16%
Craig Colby
11%
T. Rowe Price Investment Manageme...
8.6%
GLAZER CAPITAL, LLC
6.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| KKR Dream Holdings LLC |
13D/G
3/4/5
KKR Group Partnership L.P. · 10%+ Owner
|
68%
|
$2,012,335,739
94,520,232 shares
|
$0 | 31 Dec 2024 |
| Thomas Anthony Shea |
13D/G
3/4/5
CEO, Director, 10%+ Owner
|
16%
|
$429,252,378
18,173,259 shares
|
$0 | 31 Dec 2025 |
| Craig Colby |
13D/G
3/4/5
Former 10% Owner
|
11%
|
$194,351,364
9,128,763 shares
|
$0 | 31 Mar 2025 |
| T. Rowe Price Investment Management, Inc. |
13D/G
|
8.6%
|
$183,749,735
7,779,413 shares
|
+$61,226,748 | 31 Dec 2025 |
| GLAZER CAPITAL, LLC |
13F
13D/G
Company
|
6.8%
from 13D/G
|
$180,901,000
7,537,536 shares
|
— | 31 Mar 2026 |
| NORGES BANK |
13D/G
|
6.6%
|
$109,802,653
5,974,029 shares
|
-$47,048,058 | 31 Dec 2025 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC |
13D/G
13F
Company
|
5.4%
|
$114,974,767
4,867,687 shares
|
-$31,752,201 | 31 Dec 2025 |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP |
13D/G
|
5.3%
|
$81,740,932
3,839,405 shares
|
$0 | 11 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$12,367,898.
Buys
$0
Insiders: 0
Sells
$12,367,898
Insiders: 6
Net
-$12,367,898
Shares: -568,430
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 568,430
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 263,092 | $0 | $6,201,686 | -$6,201,686 |
| 6-9 | 0 | 147,994 | $0 | $2,754,702 | -$2,754,702 |
| 9-12 | 0 | 157,344 | $0 | $3,411,511 | -$3,411,511 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 60 reporting-owner rows connected to OneStream, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
60
Largest Forms 3/4/5 holder
KKR Dream Holdings LLC
Net 12M change
-$12,367,898
Latest report
01 Apr 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| KKR Dream Holdings LLC | 10%+ Owner | $1,408,748,189 | Mixed | 01 Apr 2026 | ||
| KKR Group Partnership L.P. | 10%+ Owner | $1,407,603,241 | Mixed | 01 Apr 2026 | ||
| KKR TFO Partners L.P. | 10%+ Owner | $1,407,603,241 | Mixed | 01 Apr 2026 | ||
| KKR NGT (Dream) Blocker Parent L.P. | 10%+ Owner | $1,407,603,241 | Mixed | 01 Apr 2026 | ||
| Thomas Anthony Shea | CEO, Director, 10%+ Owner | $380,638,362 | Mixed | 01 Apr 2026 | ||
| Craig Colby | Former 10% Owner | $183,503,918 | Mixed | 11 Jun 2025 | ||
| Michael Burkland | Director | $15,067,767 | Mixed | 01 Apr 2026 | ||
| Kara Wilson | Director | $8,800,129 | Mixed | 01 Apr 2026 | ||
| Peter Fugere | 10%+ Owner | $8,484,576 | Mixed | 25 Jul 2024 | ||
| Jonathan D. Mariner | Director | $7,538,440 | -$905,602 | -11% | Mixed | 01 Apr 2026 |
| John Kinzer | Interim Chief Financial Officer, Director | $5,905,561 | -$600,000 | -9.2% | Mixed | 01 Apr 2026 |
| William A. Koefoed | Former Chief Financial Officer | $3,654,631 | -$964,879 | -21% | Filing P/S | 31 Dec 2025 |
| Ken Hohenstein | Chief Revenue Officer | $0 | -$9,520,798 | -100% | Mixed | 01 Apr 2026 |
| Scott Leshinski | President | $0 | -$175,516 | -100% | Mixed | 01 Apr 2026 |
| Baskar Sridharan | Director | $0 | Mixed | 01 Apr 2026 | ||
| Pamela McIntyre | Chief Accounting Officer | $0 | -$201,103 | -100% | Mixed | 01 Apr 2026 |
| Bradley Scott Brown | Director | Mixed | 24 Jul 2024 | |||
| David S. Welsh | Director | Mixed | 24 Jul 2024 | |||
| Eric Davidson | 10%+ Owner | Mixed | 25 Jul 2024 | |||
| Terrance Shea | 10%+ Owner | Mixed | 25 Jul 2024 |
Recent insider transactions for OneStream, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| K-PRIME AG Financing LP | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR Dream Holdings LLC | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Common Units | Other | -100% | -45,795,416 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes | ||
| KKR TFO Partners L.P. | OS | Class D Common Stock | Other | -100% | -48,724,816 | 0 | 01 Apr 2026 | See Footnotes |
* marks a reported price that did not pass the local price check.