OS insider buying and SEC filings, explained
OneStream, Inc. · CIK 1889956
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$8.3M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Mar 16–17, 2026 | Planned (10b5-1) | Ken Hohenstein (Chief Revenue Officer) sold 59,204 shares between Mar 16 and Mar 17 at about $23.59 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 6% to 985,571 shares. | SEC filing Filed Mar 18, 2026 |
| Mar 11, 2026 | Planned (10b5-1) | Pamela McIntyre (Chief Accounting Officer) sold 2,015 shares at $23.68 ($48K), marked as a 10b5-1 plan trade. Holdings down 3% to 55,800 shares. | SEC filing Filed Mar 12, 2026 |
| Mar 11, 2026 | Planned (10b5-1) | Scott Leshinski (President / COO) sold 7,412 shares at $23.68 ($176K), marked as a 10b5-1 plan trade. Holdings down 3% to 278,458 shares. | SEC filing Filed Mar 12, 2026 |
| Feb 17, 2026 | Planned (10b5-1) | Ken Hohenstein (Chief Revenue Officer) sold 60,000 shares at $23.46 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 6% to 990,961 shares. | SEC filing Filed Feb 19, 2026 |
| Jan 16, 2026 | Planned (10b5-1) | Ken Hohenstein (Chief Revenue Officer) sold 120,000 shares at about $23.63 ($2.8M), marked as a 10b5-1 plan trade. Holdings down 11% to 990,961 shares. | SEC filing Filed Jan 20, 2026 |
| Jan 8, 2026 | Planned (10b5-1) | Pamela McIntyre (Chief Accounting Officer) sold 6,505 shares at $23.58 ($153K), marked as a 10b5-1 plan trade. Holdings down 10% to 58,847 shares. | SEC filing Filed Jan 9, 2026 |
| Jan 6, 2026 | Planned (10b5-1) | Jonathan D. Mariner (Director) sold 7,956 shares at about $23.31 ($185K), marked as a 10b5-1 plan trade. Holdings down 53% to 7,130 shares. | SEC filing Filed Jan 8, 2026 |
| Dec 16, 2025 | Planned (10b5-1) | Ken Hohenstein (Chief Revenue Officer) sold 40,000 shares at about $17.21 ($688K), marked as a 10b5-1 plan trade. Holdings down 4% to 990,961 shares. | SEC filing Filed Dec 18, 2025 |
| Dec 15, 2025 | Planned (10b5-1) | William A Koefoed (CFO) sold 9,571 shares at $17.73 ($170K), marked as a 10b5-1 plan trade. Holdings down 4% to 206,127 shares. | SEC filing Filed Dec 16, 2025 |
| Dec 2, 2025 | Planned (10b5-1) | Jonathan D. Mariner (Director) sold 18,423 shares at about $20.90 ($385K), marked as a 10b5-1 plan trade. Holdings down 55% to 15,086 shares. | SEC filing Filed Dec 4, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Ken Hohenstein (Chief Revenue Officer) sold 40,000 shares at about $20.94 ($838K), marked as a 10b5-1 plan trade. Holdings down 4% to 997,062 shares. | SEC filing Filed Nov 19, 2025 |
34 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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