Latest Period
Q2 2026
Security Snapshot
OneStream, Inc. - Common Stock (OS) Institutional Ownership
CUSIP: 68278B107
13F Institutional Holders and Ownership History from Q3 2024 to Q2 2026
Institutions Reporting
0
Shares (Excl. Options)
0
Price
$24.00
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- Security type / class
- Equity / Common Stock
- Symbol
- OS
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 0
- Total 13F value
- $0
- Share change
- -92,749,034
- Value change
- -$2,217,367,137
- Number of holders
- 0
- Shares outstanding
- 90,458,291
- SEC-reported price per share
- $24.00
- Insider filing price
- $24.00
Latest holder snapshot
4 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- OS - OneStream, Inc. - Common Stock is tracked under CUSIP 68278B107.
- 0 institutions reported positions in Q2 2026.
- 12 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 179 to 0 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $2,233,135,785 to $0.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 0 institutions filings for Q2 2026.
Security key
68278B107
Latest holder period
Q2 2026
13F holders
0
13D/G owners
12
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 68278B107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
12
Security
OS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| KKR Dream Holdings LLC | 68% | $2,012,335,739 | 94,520,232 | KKR Group Partnership L.P. | 31 Dec 2024 | |||
| Shea Thomas Anthony | 16% | $429,252,378 | 18,173,259 | Thomas Anthony Shea | 31 Dec 2025 | |||
| Colby Craig | 11% | $194,351,364 | 9,128,763 | Craig Colby | 31 Mar 2025 | |||
| T. Rowe Price Investment Management, Inc. | 8.6% | -25% | $183,749,735 | +$61,226,748 | 7,779,413 | +50% | T. Rowe Price Investment Management, Inc. | 31 Dec 2025 |
| GLAZER CAPITAL, LLC | 6.8% | $145,650,510 | 6,166,406 | Glazer Capital, LLC | 02 Feb 2026 | |||
| NORGES BANK | 6.6% | -31% | $109,802,653 | -$47,048,058 | 5,974,029 | -30% | Norges Bank | 31 Dec 2025 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 5.4% | -23% | $114,974,767 | -$31,752,201 | 4,867,687 | -22% | Kayne Anderson Rudnick Investment Management, LLC | 31 Dec 2025 |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP | 5.3% | $81,740,932 | 3,839,405 | Darlington Partners Capital Management, LP | 11 Mar 2025 | |||
| Champlain Investment Partners, LLC | 3.3% | -37% | $68,172,800 | -$27,195,194 | 2,886,232 | -29% | Champlain Investment Partners, LLC | 30 Sep 2025 |
| ALLIANCEBERNSTEIN L.P. | 3.9% | -30% | $60,618,591 | +$8,124,285 | 2,847,280 | +15% | AllianceBernstein L.P. | 31 Mar 2025 |
| ALKEON CAPITAL MANAGEMENT LLC | 3.5% | $53,784,097 | 2,526,261 | Alkeon Capital Management LLC | 31 Mar 2025 | |||
| Koefoed William A | 3.8% | $43,673,965 | 2,051,384 | William A. Koefoed | 31 Dec 2024 |
As of 30 Jun 2026, 0 institutional investors reported holding 0 shares of OneStream, Inc. - Common Stock (OS). This represents 0% of the company’s total 90,458,291 outstanding shares.
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Latest
Q2 2026
Rows shown
1-8 of 8
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 0 | $0 | -$2,217,367,137 | $24.00 | 0 |
| 2026 Q1 | 93,406,061 | $2,233,135,785 | +$412,422,630 | $24.00 | 179 |
| 2025 Q4 | 82,000,055 | $1,507,270,986 | +$63,787,510 | $18.38 | 182 |
| 2025 Q3 | 78,686,384 | $1,450,200,850 | -$247,394,073 | $18.43 | 181 |
| 2025 Q2 | 87,102,837 | $2,464,752,865 | +$660,992,272 | $28.30 | 185 |
| 2025 Q1 | 63,688,267 | $1,358,555,234 | +$139,486,819 | $21.34 | 139 |
| 2024 Q4 | 53,348,725 | $1,521,505,868 | -$3,152,045,853 | $28.52 | 159 |
| 2024 Q3 | 141,504,982 | $4,796,662,441 | +$4,781,290,316 | $33.90 | 113 |