OS · Insider trading · 13F holders · Congress trades
Onestream Inc (OS)
Who is buying and selling OS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 1
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
OS at a glance
- No open-market insider purchases or sales of OS were filed in the last 90 days.
- 1 13F filer hold OS among their 50 largest positions, worth $12.5M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (6.0%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in OS.
OS insider trading
No open-market insider purchases or sales of OS were filed in the last 90 days.
Who owns OS? Hedge funds and superinvestors
1 13F filer hold OS among their 50 largest positions, worth $12.5M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (6.0%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| CIBRA Capital LtdHedge fund | 6.0% | $12.5M | 519,691 | New | Q1 2026 |
Each manager counts with its latest 13F (Q1 2026: 1). Screen OS in the grand portfolio →
OS stock trades by members of Congress
No member of Congress has disclosed a trade in OS.
OS questions and answers
Are insiders buying OS stock?
No open-market insider purchases or sales of OS were filed in the last 90 days.
Which hedge funds own OS?
1 13F filer hold OS among their 50 largest positions, worth $12.5M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (6.0%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
Has Congress traded OS?
No member of Congress has disclosed a trade in OS.
Who is the largest holder of OS?
Among 13F filers, CIBRA Capital Ltd reports the largest OS position, $12.5M (519,691 shares) in its Q1 2026 13F. The biggest bet by portfolio weight is CIBRA Capital Ltd's: 6.0% of its portfolio.
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Free to use with a link back. The data updates every filing day.