OneStream, Inc. Class A Ownership | Who Owns OneStream, Inc. Class A?
OneStream, Inc. Class A Ownership Summary
OneStream, Inc. Class A is owned by 49.60% institutional investors, 2.28% insiders, and 48.12% retail investors. Vanguard group is the largest institutional shareholder, holding 4.60% of OS shares.
OS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | OneStream, Inc. Class A | 49.60% | 2.28% | 48.12% |
| Sector | Technology Stocks | 36.97% | 14.91% | 48.12% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 8.58M | 4.60% | $157.71M |
| Glazer capital | 7.54M | 4.14% | $180.90M |
| Norges bank | 5.97M | 3.20% | $109.80M |
| Temasek (private) | 4.27M | 2.34% | $102.40M |
| Fil | 3.99M | 2.19% | $95.81M |
| Aqr arbitrage | 3.39M | 1.86% | $81.44M |
| Nexpoint asset management | 3.36M | 1.84% | $80.60M |
| Polar asset management partners | 2.94M | 1.62% | $70.67M |
| Millennium management | 2.47M | 1.36% | $59.31M |
| Blackrock funding, inc. /de | 2.34M | 1.28% | $56.15M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Fifth lane capital, lp | 322.63K | 9.40% | $7.74M |
| Cibra capital | 519.69K | 6.02% | $12.47M |
| Nexpoint asset management | 3.36M | 5.41% | $80.60M |
| Trium capital llp | 272.80K | 4.61% | $6.55M |
| Glazer capital | 7.54M | 3.84% | $180.90M |
| Taconic capital advisors lp | 341.53K | 3.58% | $8.20M |
| Syquant capital sas | 789.45K | 2.96% | $18.95M |
| First trust capital management | 1.84M | 2.32% | $44.21M |
| Versor investments lp | 33.83K | 1.99% | $811.97K |
| Tig advisors | 1.74M | 1.93% | $41.72M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Glazer capital | 7.54M | 3.84% | 7.54M |
| Norges bank | 5.97M | 0.01% | 5.97M |
| Fil | 3.99M | 0.07% | 3.99M |
| Aqr arbitrage | 3.39M | 1.34% | 3.39M |
| Nexpoint asset management | 3.36M | 5.41% | 3.36M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| T. rowe price investment management | - | - | -7.78M |
| Kayne anderson rudnick investment management | 67.00 | - | -4.87M |
| Darlington partners capital management, lp | - | - | -3.84M |
| Brown advisory | - | - | -3.38M |
| Timessquare capital management | - | - | -2.67M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Glazer capital | 7.54M | 3.84% | 7.54M | $180.90M |
| Norges bank | 5.97M | 0.01% | 5.97M | $109.80M |
| Fil | 3.99M | 0.07% | 3.99M | $95.81M |
| Aqr arbitrage | 3.39M | 1.34% | 3.39M | $81.44M |
| Nexpoint asset management | 3.36M | 5.41% | 3.36M | $80.60M |
Sold Out
| Holder | Change |
|---|---|
| Clearstead advisors | -1.00 |
| Strategic wealth partners | -3.00 |
| Caitong asset management | -12.00 |
| Golden state wealth management | -13.00 |
| Signaturefd | -26.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 183 | -4.69% | 90,341,385 | 10.17% | 49 | 2.57% | 126 | 27.27% | 36 | -44.62% |
| Dec 31, 2025 | 83 | -58.50% | 27,721,263 | -64.86% | 14 | 0.76% | 45 | -55.88% | 27 | -55.74% |
| Sep 30, 2025 | 80 | -58.12% | 26,967,156 | -69.04% | 15 | 0.63% | 43 | -69.72% | 25 | -19.35% |
| Jun 30, 2025 | 191 | 32.64% | 87,102,837 | 36.76% | 48 | 3.68% | 141 | 38.24% | 32 | 18.52% |
| Mar 31, 2025 | 3 | -98.15% | 4,311,499 | -91.84% | 2 | 0.24% | 2 | -98.40% | 1 | -95.65% |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 17, 2026 | Hohenstein Ken | Chief Revenue Officer | Sell | $236.20K |
| Mar 16, 2026 | Hohenstein Ken | Chief Revenue Officer | Sell | $1.16M |
| Mar 11, 2026 | Leshinski Scott | President | Sell | $175.52K |
| Mar 11, 2026 | McIntyre Pamela | Chief Accounting Officer | Sell | $47.72K |
| Feb 17, 2026 | Hohenstein Ken | Chief Revenue Officer | Sell | $1.41M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | - | 9 |
| 2025 Q4 | - | 6 |
| 2025 Q3 | - | 9 |
| 2025 Q2 | - | 15 |
OS Ownership FAQ
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