152 institutions reported holding $220.9M of ON24 INC (ONTF) in SEC 13F filings for 2026-03-31. Largest institutional holders: Lynrock Lake LP ($67.2M), BlackRock, Inc. ($21.1M), ODDO BHF ASSET MANAGEMENT SAS ($12.7M), VANGUARD CAPITAL MANAGEMENT LLC ($11.5M), FIL Ltd ($11.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Lynrock Lake LP | $67.2M | 8.3M | Hold |
| 2 | BlackRock, Inc. | $21.1M | 2.6M | Trimmed |
| 3 | ODDO BHF ASSET MANAGEMENT SAS | $12.7M | 1.6M | New |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $11.5M | 1.4M | New |
| 5 | FIL Ltd | $11.5M | 1.4M | New |
| 6 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $9.1M | 1.1M | Added |
| 7 | GLAZER CAPITAL, LLC | $8.9M | 1.1M | Added |
| 8 | DIMENSIONAL FUND ADVISORS LP | $8.2M | 1.0M | Trimmed |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $7.2M | 894,720 | Added |
| 10 | STATE STREET CORP | $6.1M | 755,698 | Trimmed |
| 11 | MORGAN STANLEY | $5.1M | 631,581 | Added |
| 12 | Groupe la Francaise | $3.0M | 365,400 | New |
| 13 | NORTHERN TRUST CORP | $2.7M | 329,403 | Added |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.6M | 316,798 | Trimmed |
| 15 | Jasper Ridge Partners, L.P. | $2.3M | 283,324 | Hold |
| 16 | MILLENNIUM MANAGEMENT LLC | $2.1M | 259,973 | Added |
| 17 | GABELLI FUNDS LLC | $2.0M | 247,719 | New |
| 18 | ABC ARBITRAGE SA | $2.0M | 247,396 | New |
| 19 | CREDIT INDUSTRIEL ET COMMERCIAL | $2.0M | 246,639 | New |
| 20 | VANGUARD FIDUCIARY TRUST CO | $2.0M | 245,418 | New |
| 21 | GOLDMAN SACHS GROUP INC | $1.9M | 239,066 | Added |
| 22 | Quantinno Capital Management LP | $1.9M | 237,525 | Added |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.7M | 215,043 | New |
| 24 | Squarepoint Ops LLC | $1.7M | 213,882 | New |
| 25 | Trium Capital LLP | $1.4M | 176,589 | New |
Source: SEC Form 13F filings · as of 2026-03-31