Who Owns OS?
OneStream, Inc. Class A Common Stock — Institutional Ownership & 13F Holdings
$24.00
-0.01 (-0.02%)
Market Cap
$2.4B
Shares Outstanding
99,803,650
Institutional Holders
139
Total Inst. Value
$6.6B
% of Float Held
35.5%
QoQ Holder Change
—
Institutional data as of Q1 2025
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | $3.1B | 145,100 |
| 2 | CANADA PENSION PLAN INVESTMENT BOARD | $2.3B | 106,400 |
| 3 | T. Rowe Price Investment Management, Inc. | $190.7M | 8,937,682 |
| 4 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | $136.1M | 6,378,130 |
| 5 | Champlain Investment Partners, LLC | $86.2M | 4,037,595 |
| 6 | DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP | $81.9M | 3,839,405 |
| 7 | VANGUARD GROUP INC | $76.6M | 3,591,453 |
| 8 | Temasek Holdings (Private) Ltd | $63.1M | 2,956,360 |
| 9 | ALLIANCEBERNSTEIN L.P. | $60.8M | 2,847,280 |
| 10 | TimesSquare Capital Management, LLC | $57.6M | 2,699,645 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ | +400 | $3.1B |
| T. Rowe Price Investment Management, Inc. | +5.2M | $190.7M |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | +2.2M | $136.1M |
| Champlain Investment Partners, LLC | +599K | $86.2M |
| Temasek Holdings (Private) Ltd | +2.8M | $63.1M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| JPMORGAN CHASE & CO | -1.6M | $619K |
| FMR LLC | -1.2M | $1.0M |
| SOROS FUND MANAGEMENT LLC | -782K | $10.0M |
| Aperture Investors, LLC | -602K | $5.0M |
| Holocene Advisors, LP | -552K | $2.3M |
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Frequently Asked Questions
How many institutional investors hold OS?
As of Q1 2025, 139 institutional investors report holding OS (OneStream, Inc. Class A Common Stock) in their 13F filings.
What percentage of OneStream, Inc. Class A Common Stock is owned by institutions?
Institutional investors hold approximately 35.5% of OneStream, Inc. Class A Common Stock's float as reported in SEC 13F filings.
Which hedge fund owns the most OS?
The largest institutional holder of OS is PRIMECAP MANAGEMENT CO/CA/ with $3.1B in shares.
Are institutions buying or selling OS?
This quarter, 37 institutions opened new positions in OS and 50 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.