OneStream, Inc.
OSDelisted- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001889956
OneStream, Inc. was delisted in 2026; its insiders filed their last Form 4 on Apr 7, 2026; 180 institutions reported holding it in 13F filings for Q1 2026, worth $2.23B in total; Soros Fund Management was the only superinvestor holding it.
Key figures
- Insider buys
- 0
- Open market, last 90 days
- Insider sells
- 0
- Open market, last 90 days
- 13F holders
- 180
- Q1 2026, +1 vs. previous quarter
- 13F value
- $2.23B
- Reported value at the end of Q1 2026
- Superinvestors holding
- 1
- At the end of Q1 2026
Superinvestors holding OS, Q1 2026
1 superinvestor reports holding OneStream, Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Soros Fund Management
George Soros
0.6%
OneStream, Inc.'s share of the portfolio
- Shares
- 1,830,222
- Value
- $43.9M
Latest insider trades
Open-market purchases and sales by OneStream, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 18, 2026 (view filing) | Mar 16-17 | 2 days | Hohenstein KenChief Revenue Officer | SSaleClass A Common Stock | −59.2K | $23.59 | −$1.40M | −5.7%985.6K after | 2 lots10b5-1 |
| Mar 12, 2026 (view filing) | Mar 11 | 1 day | McIntyre PamelaChief Accounting Officer | SSaleClass A Common Stock | −2.02K | $23.68 | −$47.7K | −3.5%55.8K after | 10b5-1 |
| Mar 12, 2026 (view filing) | Mar 11 | 1 day | Leshinski ScottPresident | SSaleClass A Common Stock | −7.41K | $23.68 | −$175.5K | −2.6%278.5K after | 10b5-1 |
| Feb 19, 2026 (view filing) | Feb 17 | 2 days | Hohenstein KenChief Revenue Officer | SSaleClass A Common Stock | −60.0K | $23.46 | −$1.41M | −5.7%991.0K after | 10b5-1 |
| Jan 20, 2026 (view filing) | Jan 16 | 4 days | Hohenstein KenChief Revenue Officer | SSaleClass A Common Stock | −120.0K | $23.63 | −$2.84M | −10.8%991.0K after | 10b5-1 |
| Jan 9, 2026 (view filing) | Jan 8 | 1 day | McIntyre PamelaChief Accounting Officer | SSaleClass A Common Stock | −6.50K | $23.58 | −$153.4K | −10.0%58.8K after | 10b5-1 |
| Jan 8, 2026 (view filing) | Jan 6 | 2 days | Mariner Jonathan DDirector | SSaleClass A Common Stock | −7.96K | $23.31 | −$185.4K | −52.7%7.13K after | 2 lots10b5-1 |
| Dec 18, 2025 (view filing) | Dec 16 | 2 days | Hohenstein KenChief Revenue Officer | SSaleClass A Common Stock | −40.0K | $17.21 | −$688.4K | −3.9%991.0K after | 10b5-1 |
| Dec 16, 2025 (view filing) | Dec 15 | 1 day | Koefoed William AChief Financial Officer | SSaleClass A Common Stock | −9.57K | $17.73 | −$169.7K | −4.4%206.1K after | 10b5-1 |
| Dec 4, 2025 (view filing) | Dec 2 | 2 days | Mariner Jonathan DDirector | SSaleClass A Common Stock | −18.4K | $20.90 | −$385.0K | −55.0%15.1K after | 10b5-1 |
Top 10 13F holders, Q1 2026
The largest institutional positions in OneStream, Inc. at the end of Q1 2026; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Glazer Capital, LLC | 7,537,536 | $180.9M | 3.84% | +7,537,536 | New |
| Vanguard Portfolio Management LLC | 4,900,450 | $117.6M | 0.01% | +4,900,450 | New |
| Temasek Holdings (Private) Ltd | 4,266,714 | $102.4M | 0.34% | 00.0% | Unchanged |
| FIL Ltd | 3,992,145 | $95.8M | 0.07% | +3,992,145 | New |
| Vanguard Capital Management LLC | 3,882,231 | $93.2M | 0.00% | +3,882,231 | New |
| CNH Partners LLC | 3,393,367 | $81.4M | 1.34% | +3,393,367 | New |
| Highland Capital Management Fund Advisors, L.P. | 3,358,217 | $80.6M | 5.62% | +3,358,217 | New |
| O'Connor Alternative Investments LLC | 3,186,804 | $76.5M | 4.01% | +3,186,804 | New |
| Polar Asset Management Partners Inc. | 2,944,378 | $70.7M | 1.68% | +2,944,378 | New |
| Millennium Management LLC | 2,471,107 | $59.3M | 0.04% | +2,135,526+636.4% | Added |