🕵️ ON24, Inc. ($ONTF)
SEC insider & ownership activity, last 12 months · CIK 1110611 · every row links its SEC filing
Over the last 12 months insiders sold $4.8M with no open-market buying against it. Sharat Sharan sold $1.8M through a 10b5-1 trading plan in 11 lots (Aug–Mar). One red-flag 8-K in the window: Delisting notice (3.01), Apr 1, 2026.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 5 sellers, $4.8M (58 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Sharat Sharan | 0 | – | 11 | $1.8M | Mar 20, 2026 |
| Steven Vattuone | 0 | – | 20 | $1.6M | Mar 20, 2026 |
| Jayesh Sahasi | 0 | – | 13 | $765K | Mar 20, 2026 |
| James Blackie | 0 | – | 13 | $576K | Mar 20, 2026 |
| Dominique Trempont | 0 | – | 1 | $49K | Aug 11, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 5.3% | 13G | Apr 17, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Jayesh Sahasi | $30K | Mar 20, 2026 | filing ↗ |
| Steven Vattuone | $28K | Mar 20, 2026 | filing ↗ |
| Sharat Sharan | $138K | Mar 20, 2026 | filing ↗ |
| James Blackie | $25K | Mar 20, 2026 | filing ↗ |
| Steven Vattuone | $176K | Mar 3, 2026 | filing ↗ |
| Jayesh Sahasi | $173K | Mar 2, 2026 | filing ↗ |
| Steven Vattuone | $183K | Mar 2, 2026 | filing ↗ |
| James Blackie | $162K | Mar 2, 2026 | filing ↗ |
| Sharat Sharan | $126K | Mar 2, 2026 | filing ↗ |
| Steven Vattuone | $3K | Feb 11, 2026 | filing ↗ |
| Steven Vattuone | $3K | Feb 10, 2026 | filing ↗ |
| Sharat Sharan | $18K | Feb 10, 2026 | filing ↗ |
| Jayesh Sahasi | $2K | Feb 10, 2026 | filing ↗ |
| James Blackie | $2K | Feb 10, 2026 | filing ↗ |
| Sharat Sharan | $401K | Dec 31, 2025 | filing ↗ |
| Jayesh Sahasi | $204K | Dec 30, 2025 | filing ↗ |
| James Blackie | $94K | Dec 30, 2025 | filing ↗ |
| Steven Vattuone | $469K | Dec 30, 2025 | filing ↗ |
| Sharat Sharan | $112K | Dec 17, 2025 | filing ↗ |
| Steven Vattuone | $42K | Dec 9, 2025 | filing ↗ |
| Steven Vattuone | $53K | Dec 3, 2025 | filing ↗ |
| James Blackie | $143K | Dec 1, 2025 | filing ↗ |
| Jayesh Sahasi | $153K | Dec 1, 2025 | filing ↗ |
| Steven Vattuone | $167K | Dec 1, 2025 | filing ↗ |
| Sharat Sharan | $175K | Nov 24, 2025 | filing ↗ |
| Steven Vattuone | $21K | Nov 24, 2025 | filing ↗ |
| Jayesh Sahasi | $22K | Nov 20, 2025 | filing ↗ |
| Steven Vattuone | $23K | Nov 20, 2025 | filing ↗ |
| James Blackie | $25K | Nov 20, 2025 | filing ↗ |
| Sharat Sharan | $180K | Oct 16, 2025 | filing ↗ |
| Sharat Sharan | $324K | Sep 30, 2025 | filing ↗ |
| Sharat Sharan | $177K | Sep 16, 2025 | filing ↗ |
| Steven Vattuone | $113K | Sep 9, 2025 | filing ↗ |
| James Blackie | $142K | Sep 2, 2025 | filing ↗ |
| Steven Vattuone | $165K | Sep 2, 2025 | filing ↗ |
| Jayesh Sahasi | $151K | Sep 2, 2025 | filing ↗ |
| Steven Vattuone | $27K | Aug 21, 2025 | filing ↗ |
| James Blackie | $17K | Aug 20, 2025 | filing ↗ |
| Jayesh Sahasi | $15K | Aug 20, 2025 | filing ↗ |
| Steven Vattuone | $16K | Aug 20, 2025 | filing ↗ |
| Sharat Sharan | $187K | Aug 11, 2025 | filing ↗ |
| Dominique Trempont | $50K | Aug 11, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Agreement terminated (1.02) | Apr 1, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Apr 1, 2026 | filing ↗ |
| Delisting notice (3.01) | Apr 1, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Apr 1, 2026 | filing ↗ |
| Change of control (5.01) | Apr 1, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 1, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Apr 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 1, 2026 | filing ↗ |
| Shareholder vote (5.07) | Mar 26, 2026 | filing ↗ |
| Other events (8.01) | Mar 19, 2026 | filing ↗ |
| Earnings (2.02) | Feb 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 25, 2026 | filing ↗ |
| Other events (8.01) | Feb 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 30, 2025 | filing ↗ |
| Material agreement (1.01) | Dec 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 29, 2025 | filing ↗ |
| Earnings (2.02) | Nov 10, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |