Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ONTF held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Lynrock Lake LP | 8.3M | $67.2M | 0.0% | 19.291% | 4.60% |
| 2 | BlackRock, Inc. | 2.6M | $21.1M | -3.0% | 6.056% | 0.00% |
| 3 | ODDO BHF ASSET MANAGEMENT SAS | 1.6M | $12.7M | β | 3.643% | 0.50% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | $11.5M | β | 3.316% | 0.00% |
| 5 | FIL Ltd | 1.4M | $11.5M | β | 3.290% | 0.01% |
| 6 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.1M | $9.1M | +58.8% | 2.624% | 0.00% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 1.0M | $8.2M | -21.0% | 2.363% | 0.00% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 895K | $7.2M | +4.8% | 2.081% | 0.00% |
| 9 | STATE STREET CORP | 756K | $6.1M | -10.1% | 1.758% | 0.00% |
| 10 | MORGAN STANLEY | 632K | $5.1M | +50.4% | 1.469% | 0.00% |
| 11 | NORTHERN TRUST CORP | 329K | $2.7M | +4.2% | 0.766% | 0.00% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 317K | $2.6M | -2.7% | 0.737% | 0.00% |
| 13 | Jasper Ridge Partners, L.P. | 283K | $2.3M | 0.0% | 0.659% | 0.05% |
| 14 | MILLENNIUM MANAGEMENT LLC | 260K | $2.1M | +320.9% | 0.605% | 0.00% |
| 15 | GABELLI FUNDS LLC | 248K | $2.0M | β | 0.576% | 0.01% |
| 16 | ABC ARBITRAGE SA | 247K | $2.0M | β | 0.575% | 0.27% |
| 17 | CREDIT INDUSTRIEL ET COMMERCIAL | 247K | $2.0M | β | 0.574% | 0.16% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 245K | $2.0M | β | 0.571% | 0.00% |
| 19 | GOLDMAN SACHS GROUP INC | 239K | $1.9M | +61.5% | 0.556% | 0.00% |
| 20 | Quantinno Capital Management LP | 238K | $1.9M | +44.0% | 0.552% | 0.00% |
| 21 | VANGUARD PORTFOLIO MANAGEMENT LLC | 215K | $1.7M | β | 0.500% | 0.00% |
| 22 | Squarepoint Ops LLC | 214K | $1.7M | β | 0.498% | 0.00% |
| 23 | Trium Capital LLP | 177K | $1.4M | β | 0.411% | 1.04% |
| 24 | GABELLI & Co INVESTMENT ADVISERS, INC. | 171K | $1.4M | β | 0.398% | 0.21% |
| 25 | P.A.W. CAPITAL CORP | 160K | $1.3M | -46.7% | 0.372% | 3.53% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ONTF β a direct measure of their conviction.
Filings activity in ONTF during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new ONTF position in Q1 2026
Institutions that fully closed their ONTF position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 119 | +9.2% | 59.58% | 7.38 pp | $207M | 11% |
| Q4 2025 | 109 | +9.0% | 66.96% | +17.34 pp | $233M | +35% |
| Q3 2025 | 100 | +9.9% | 49.62% | +2.75 pp | $173M | +5.9% |
| Q2 2025 | 91 | 6.2% | 46.87% | +4.69 pp | $163M | +11% |
| Q1 2025 | 97 | 13% | 42.18% | 9.91 pp | $147M | 19% |
| Q4 2024 | 111 | +4.7% | 52.09% | +3.08 pp | $181M | +6.3% |
| Q3 2024 | 106 | 1.9% | 49.01% | +0.76 pp | $171M | +1.6% |
| Q2 2024 | 108 | β | 48.25% | β | $168M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ONTF stock.
Based on Q1 2026 13F filings, institutional ownership of ON24, Inc. stands at 59.6%, held across 119 reporting institutions.
Lynrock Lake LP is the largest reported institutional holder of ONTF, with approximately 8,293,974 shares worth $0.07B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of ONTF, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for ONTF is 41 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
41 institutions opened new positions in ONTF during Q1 2026, while 31 fully exited. 55 added to existing positions and 19 trimmed.
ONTF institutional ownership fell by 7.38 percentage points quarter-over-quarter, with a net change of +10 holders.
The top 10 institutions account for 77.0% of all reported 13F value in ONTF, and the top 25 account for 91.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
ON24, Inc. (ONTF) Institutional Ownership