CIK 0001110611
ONTF ON24 INC.
Insider trading from SEC Form 4. Last filing Apr 2, 2026.
In brief
ON24 INC. (ONTF) has 127 SEC Form 4 filings on file from 11 insiders, the latest filed on Apr 2, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
101 open-market trades have been scored at ONTF. The newest: James Blackie (Chief Revenue Officer) sold $25k of stock on Mar 20, 2026, filed Mar 24, 2026, scored 15 (weak), under a 10b5-1 plan. The largest of the 50 shown: Cynthia Paul (director and 10% owner) bought $759k on Jun 6, 2025, scored 42 (moderate). 4 insiders sold within 14 days of each other around Mar 20, 2026.
25 Form 144 notices of planned sales are on file, the latest filed Mar 20, 2026.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
11
with a Form 4 at this company
Signals
Open-market buys and sells at ON24 INC., scored: the newest 50 of 101.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 15Weak | James Blackie Chief Revenue Officer sell | $25k 3,117 shares | -1% | - | |
| 22Weak | Steven Vattuone Chief Financial Officer sell | $28k 3,429 shares | -1% | - | |
| 31Weak | Sharat Sharan President and Chief Executive sell | $138k 17,171 shares | -0% | - | |
| 20Weak | Jayesh Sahasi EV President, Product and CTO sell | $30k 3,662 shares | -1% | - | |
| 29Weak | Steven Vattuone Chief Financial Officer sell | $177k 22,013 shares | -5% | - | |
| 21Weak | James Blackie Chief Revenue Officer sell | $162k 20,277 shares | -4% | - | |
| 29Weak | Steven Vattuone Chief Financial Officer sell | $183k 22,884 shares | -5% | - | |
| 31Weak | Sharat Sharan President and Chief Executive sell | $126k 15,679 shares | -0% | - | |
| 26Weak | Jayesh Sahasi EV President, Product and CTO sell | $173k 21,617 shares | -3% | - | |
| 17Weak | Steven Vattuone Chief Financial Officer sell | $3,342 422 shares | -0% | - | |
| 10Weak | James Blackie Chief Revenue Officer sell | $1,904 240 shares | -0% | - | |
| 17Weak | Steven Vattuone Chief Financial Officer sell | $2,578 325 shares | -0% | - | |
| 20Weak | Sharat Sharan President and Chief Executive sell | $18k 2,310 shares | -0% | - | |
| 15Weak | Jayesh Sahasi EV President, Product and CTO sell | $1,983 250 shares | -0% | - | |
| 36Weak | Sharat Sharan President and Chief Executive sell | $401k 50,332 shares | -1% | - | |
| 6Weak | James Blackie Chief Revenue Officer sell | $127k 16,000 shares | -3% | - | |
| 42Moderate | Steven Vattuone Chief Financial Officer sell | $639k 80,000 shares | -15% | - | |
| 29Weak | Jayesh Sahasi EV President, Product and CTO sell | $277k 34,753 shares | -5% | - | |
| 15Weak | Sharat Sharan President and Chief Executive sell | $111k 19,119 shares | -1% | - | |
| 23Weak | Steven Vattuone Chief Financial Officer sell | $42k 7,010 shares | -1% | - | |
| 21Weak | James Blackie Chief Revenue Officer sell | $128k 22,550 shares | -4% | - | |
| 29Weak | Steven Vattuone Chief Financial Officer sell | $204k 35,717 shares | -6% | - | |
| 26Weak | Jayesh Sahasi EV President, Product and CTO sell | $137k 24,053 shares | -3% | - | |
| 16Weak | Sharat Sharan President and Chief Executive sell | $171k 32,211 shares | -1% | - | |
| 10Weak | James Blackie Chief Revenue Officer sell | $25k 4,659 shares | -1% | - | |
| 23Weak | Steven Vattuone Chief Financial Officer sell | $43k 8,213 shares | -1% | - | |
| 15Weak | Jayesh Sahasi EV President, Product and CTO sell | $22k 4,099 shares | -1% | - | |
| 1Weak | Sharat Sharan President and Chief Executive sell | $175k 32,093 shares | -1% | - | |
| 19Weak | Sharat Sharan President and Chief Executive sell | $286k 50,330 shares | -1% | - | |
| 17Weak | Sharat Sharan President and Chief Executive sell | $179k 32,159 shares | -1% | - | |
| 16Weak | James Blackie Chief Revenue Officer sell | $38k 6,782 shares | -1% | - | |
| 21Weak | Jayesh Sahasi EV President, Product and CTO sell | $46k 8,289 shares | -1% | - | |
| 28Weak | Steven Vattuone Chief Financial Officer sell | $164k 29,562 shares | -5% | - | |
| 17Weak | James Blackie Chief Revenue Officer sell | $52k 9,455 shares | -2% | - | |
| 25Weak | Steven Vattuone Chief Financial Officer sell | $73k 13,165 shares | -2% | - | |
| 23Weak | Jayesh Sahasi EV President, Product and CTO sell | $64k 11,554 shares | -2% | - | |
| 10Weak | James Blackie Chief Revenue Officer sell | $17k 3,283 shares | -1% | - | |
| 23Weak | Steven Vattuone Chief Financial Officer sell | $43k 8,211 shares | -1% | - | |
| 15Weak | Jayesh Sahasi EV President, Product and CTO sell | $15k 2,888 shares | -0% | - | |
| 17Weak | Sharat Sharan President and Chief Executive sell | $185k 37,982 shares | -1% | - | |
| 17Weak | Dominique Trempont director sell | $49k 10,066 shares | -4% | - | |
| 2Weak | Sharat Sharan President and Chief Executive sell | $195k 37,784 shares | -1% | - | |
| 20Weak | Sharat Sharan President and Chief Executive sell | $336k 61,467 shares | -2% | - | |
| 17Weak | Sharat Sharan President and Chief Executive sell | $202k 37,527 shares | -1% | - | |
| 27Weak | Cynthia Paul director, owner buy | $187k 33,550 shares | +0% | - | |
| 42Moderate | Cynthia Paul director, owner buy | $759k 135,667 shares | +2% | - | |
| 10Weak | James Blackie Chief Revenue Officer sell | $12k 2,102 shares | -0% | - | |
| 15Weak | Jayesh Sahasi EV President, Product and CTO sell | $12k 2,242 shares | -0% | - | |
| 28Weak | Steven Vattuone Chief Financial Officer sell | $136k 24,496 shares | -4% | - | |
| 31Weak | Cynthia Paul director, owner buy | $410k 73,708 shares | +1% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Mar 20, 2026 | JAMES BLACKIE Officer | 3,117 0.01% of outstanding | $25k | Mar 20, 2026 | $292k |
| Mar 20, 2026 | SHARAT SHARAN Officer, Director, 10% Stockholder | 17,171 0.04% of outstanding | $138k | Mar 20, 2026 | $545k |
| Mar 20, 2026 | STEVEN VATTUONE Officer | 3,429 0.01% of outstanding | $28k | Mar 20, 2026 | $1.0M |
| Mar 20, 2026 | JAYESH SAHASI Officer | 3,662 0.01% of outstanding | $30k | Mar 20, 2026 | $453k |
| Mar 3, 2026 | STEVEN VATTUONE Officer | 22,013 0.05% of outstanding | $176k | Mar 3, 2026 | $870k |
| Mar 2, 2026 | JAMES BLACKIE Officer | 20,277 0.05% of outstanding | $162k | Mar 2, 2026 | $129k |
| Mar 2, 2026 | SHARAT SHARAN Officer, Director, 10% Stockholder | 15,679 0.04% of outstanding | $126k | Mar 2, 2026 | $531k |
| Mar 2, 2026 | STEVEN VATTUONE Officer | 22,884 0.05% of outstanding | $183k | Mar 2, 2026 | $742k |
| Mar 2, 2026 | JAYESH SAHASI Officer | 21,617 0.05% of outstanding | $173k | Mar 2, 2026 | $279k |
| Feb 11, 2026 | STEVEN VATTUONE Officer | 422 0.00% of outstanding | $3,346 | Feb 11, 2026 | $931k |
| Feb 10, 2026 | JAMES BLACKIE Officer | 240 0.00% of outstanding | $1,904 | Feb 10, 2026 | $280k |
| Feb 10, 2026 | JAYESH SAHASI Officer | 250 0.00% of outstanding | $1,983 | Feb 10, 2026 | $436k |
| Feb 10, 2026 | SHARAT SHARAN Officer, Director, 10% Stockholder | 2,310 0.01% of outstanding | $18k | Feb 10, 2026 | $683k |
| Feb 10, 2026 | STEVEN VATTUONE Officer | 325 0.00% of outstanding | $2,578 | Feb 10, 2026 | $929k |
| Dec 31, 2025 | SHARAT SHARAN Officer, Director, 10% Stockholder | 50,332 0.12% of outstanding | $401k | Dec 31, 2025 | $574k |
| Dec 30, 2025 | JAMES BLACKIE Officer | 16,000 0.04% of outstanding | $94k | Dec 30, 2025 | $153k |
| Dec 30, 2025 | STEVEN VATTUONE Officer | 80,000 0.19% of outstanding | $469k | Dec 30, 2025 | $290k |
| Dec 30, 2025 | JAYESH SAHASI Officer | 34,753 0.08% of outstanding | $204k | Dec 30, 2025 | $158k |
| Dec 17, 2025 | SHARAT SHARAN Director, Officer, 10% Stockholder | 19,119 0.05% of outstanding | $112k | Dec 17, 2025 | $632k |
| Dec 9, 2025 | STEVEN VATTUONE Officer | 7,010 0.02% of outstanding | $42k | Dec 9, 2025 | $248k |
| Dec 3, 2025 | STEVEN VATTUONE Officer | 9,453 0.02% of outstanding | $53k | Dec 3, 2025 | $339k |
| Dec 1, 2025 | JAMES BLACKIE Officer | 25,307 0.06% of outstanding | $143k | Dec 1, 2025 | $114k |
| Dec 1, 2025 | STEVEN VATTUONE Officer | 29,475 0.07% of outstanding | $167k | Dec 1, 2025 | $280k |
| Dec 1, 2025 | JAYESH SAHASI Officer | 26,994 0.06% of outstanding | $153k | Dec 1, 2025 | $131k |
| Nov 24, 2025 | STEVEN VATTUONE Officer | 3,821 0.01% of outstanding | $21k | Nov 24, 2025 | $207k |
Transactions
The newest 50 of 289 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Apr 1, 2026 | Dominique Trempont director | DDisposition to issuer Common Stock | -276,389 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | AGrant or award Common Stock | +61,489 | $0.00 | $0 | 738,621 | Apr 2, 2026 |
| Apr 1, 2026 | Barry Zwarenstein director | DDisposition to issuer Common Stock | -154,586 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Ronald Paul Mitchell director | DDisposition to issuer Common Stock | -141,095 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Steven Vattuone Chief Financial Officer | AGrant or award Common Stock | +79,935 | $0.00 | $0 | 511,936 | Apr 2, 2026 |
| Apr 1, 2026 | Anthony Zingale director | DDisposition to issuer Common Stock | -137,265 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Anil Arora director | DDisposition to issuer Common Stock | -157,903 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | AGrant or award Common Stock | +59,029 | $0.00 | $0 | 539,964 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | AGrant or award Common Stock | +478,725 | $0.00 | $0 | 4,197,237 | Apr 2, 2026 |
| Apr 1, 2026 | Cynthia Paul director, owner | DDisposition to issuer Common Stock | -141,095 | $8.10 | $1.1M | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Teresa Anania director | DDisposition to issuer Common Stock | -141,095 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Common Stock | -738,621 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Barry Zwarenstein director | DDisposition to issuer Stock Options (Right to buy)derivative | -110,834 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Steven Vattuone Chief Financial Officer | DDisposition to issuer Common Stock | -511,936 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Cynthia Paul director, owner | UTender of shares Common Stockindirect: By Fund | -8,293,974 | $8.10 | $67M | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Dominique Trempont director | DDisposition to issuer Stock Options (Right to buy)derivative | -20,000 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Common Stock | -4,197,237 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Common Stock | -539,964 | - | - | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Stock Options (Right to buy)derivative | -183,701 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Steven Vattuone Chief Financial Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -90,982 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Option (Right to Buy)derivative | -35,696 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Dominique Trempont director | DDisposition to issuer Stock Options (Right to buy)derivative | -12,131 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Stock Options (Right to buy)derivative | -439,198 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Stock Options (Right to buy)derivative | -17,299 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Steven Vattuone Chief Financial Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -9,018 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Dominique Trempont director | DDisposition to issuer Stock Options (Right to buy)derivative | -21,000 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -122,727 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Stock Options (Right to buy)derivative | -20,802 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Stock Options (Right to buy)derivative | -55,370 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Stock Options (Right to buy)derivative | -99,836 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -18,273 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -89,271 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Stock Options (Right to buy)derivative | -26,043 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Stock Options (Right to buy)derivative | -427,950 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -222,588 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Jayesh Sahasi EV President, Product and CTO | DDisposition to issuer Stock Options (Right to buy)derivative | -22,086 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | Sharat Sharan President and Chief Executive | DDisposition to issuer Stock Options (Right to buy)derivative | -313,794 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | James Blackie Chief Revenue Officer | DDisposition to issuer Stock Options (Right to buy)derivative | -22,916 | $0.00 | $0 | 0 | Apr 2, 2026 |
| Mar 20, 2026 | James Blackie Chief Revenue Officer | SOpen-market sale Common Stock10b5-1 | -3,117 | $8.07 | $25k | 480,935 | Mar 24, 2026 |
| Mar 20, 2026 | Steven Vattuone Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -3,429 | $8.07 | $28k | 432,001 | Mar 24, 2026 |
| Mar 20, 2026 | Sharat Sharan President and Chief Executive | SOpen-market sale Common Stock10b5-1 | -17,171 | $8.07 | $138k | 3,718,512 | Mar 24, 2026 |
| Mar 20, 2026 | Jayesh Sahasi EV President, Product and CTO | SOpen-market sale Common Stock10b5-1 | -3,662 | $8.07 | $30k | 677,132 | Mar 24, 2026 |
| Mar 3, 2026 | Steven Vattuone Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -22,013 | $8.03 | $177k | 435,430 | Mar 5, 2026 |
| Feb 26, 2026 | Jayesh Sahasi EV President, Product and CTO | AGrant or award Common Stock10b5-1 | +29,560 | $0.00 | $0 | 702,411 | Mar 2, 2026 |
| Feb 26, 2026 | James Blackie Chief Revenue Officer | AGrant or award Common Stock10b5-1 | +25,157 | $0.00 | $0 | 504,329 | Mar 2, 2026 |
| Feb 26, 2026 | Steven Vattuone Chief Financial Officer | AGrant or award Common Stock10b5-1 | +27,673 | $0.00 | $0 | 480,327 | Mar 2, 2026 |
| Feb 26, 2026 | Sharat Sharan President and Chief Executive | AGrant or award Common Stock10b5-1 | +125,787 | $0.00 | $0 | 3,751,362 | Mar 2, 2026 |
| Mar 2, 2026 | James Blackie Chief Revenue Officer | SOpen-market sale Common Stock10b5-1 | -20,277 | $8.01 | $162k | 484,052 | Mar 2, 2026 |
| Mar 2, 2026 | Steven Vattuone Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -22,884 | $8.01 | $183k | 457,443 | Mar 2, 2026 |
| Mar 2, 2026 | Sharat Sharan President and Chief Executive | SOpen-market sale Common Stock10b5-1 | -15,679 | $8.01 | $126k | 3,735,683 | Mar 2, 2026 |
50 of 289 rows shown.
Insiders
Everyone who has filed a Form 4 here.
- Teresa Ananiadirector
- Anil Aroradirector
- James BlackieChief Revenue Officer
- Ronald Paul Mitchelldirector
- Cynthia Pauldirector, owner
- Jayesh SahasiEV President, Product and CTO
- Sharat SharanPresident and Chief Executive
- Dominique Trempontdirector
- Steven VattuoneChief Financial Officer
- Anthony Zingaledirector
- Barry Zwarensteincfo, officer, director
Questions about ONTF
Answered from the filings on this page, as of the latest one.
Are insiders buying ONTF?
No. In the last 90 days no insider at ON24 INC. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade ONTF on the open market?
James Blackie (Chief Revenue Officer) sold $25k of ONTF on Mar 20, 2026 and filed the Form 4 on Mar 24, 2026. InsiderTell scored 15 (weak), under a 10b5-1 plan, with 4 insiders on the same side within 14 days.
How many insiders file Form 4 at ON24 INC.?
11 people have filed a Form 4 at ON24 INC., among them Teresa Anania (director), Anil Arora (director), James Blackie (Chief Revenue Officer). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.