Mario Gabelli's OS Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 15,000 shares of OneStream, Inc. (OS) worth $360,000, representing 0.00% of the portfolio. First purchased in 2026-Q1, this recently established position has been held for 1 quarters.
Based on recent 13F filings, Mario Gabelli has initiated a new position in OS, representing a fresh investment thesis on this company. Insufficient history to summarize additions or reductions.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's OneStream (OS) Holding Value Over Time
Track share changes against reported price movement
Quarterly OneStream (OS) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +15,000 | New Buy | 15,000 | $24.00 |
Mario Gabelli's OneStream Investment FAQs
Mario Gabelli first purchased OneStream, Inc. (OS) in Q1 2026, acquiring 15,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held OneStream, Inc. (OS) for 1 quarters since Q1 2026.
Mario Gabelli's largest addition to OneStream, Inc. (OS) was in Q1 2026, adding 15,000 shares worth $360,000.
According to the latest 13F filing for Q1 2026, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 15,000 shares of OneStream, Inc. (OS), valued at approximately $360,000.
As of the Q1 2026 filing, OneStream, Inc. (OS) represents approximately 0.00% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in OneStream, Inc. (OS) was 15,000 shares, as reported at the end of Q1 2026.