ON24 INC. (ONTF) — Institutional Holders, Q2 2026

1 institutional investment managers reported a ONTF position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $470.00. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← ONTF stock profile

ONTF in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

119

Biggest buyers

None this quarter.

Biggest sellers

Lynrock LakeSold out · -8,293,974 sh-$67.2M
BlackRockSold out · -2,603,804 sh-$21.1M
ODDO BHF ASSET MANAGEMENT SASSold out · -1,566,256 sh-$12.7M
VANGUARD CAPITAL MANAGEMENTSold out · -1,425,791 sh-$11.6M
FIL LtdSold out · -1,414,677 sh-$11.5M

ONTF 13F holders ranked 1–1 of 1

Institutional investors reporting a position in ON24 INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	IFP Advisors#1 · 58 sh	58	$470.00	—	-6.5%

Funds that sold out of ONTF in Q2 2026 (119)

Held ONTF at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held ONTF in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Lynrock Lake8,293,974 sh	8,293,974	$67.2M
BlackRock2,603,804 sh	2,603,804	$21.1M
ODDO BHF ASSET MANAGEMENT SAS1,566,256 sh	1,566,256	$12.7M
VANGUARD CAPITAL MANAGEMENT1,425,791 sh	1,425,791	$11.5M
FIL Ltd1,414,677 sh	1,414,677	$11.5M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP1,128,279 sh	1,128,279	$9.1M
GLAZER CAPITAL1,102,841 sh	1,102,841	$8.9M
DIMENSIONAL FUND ADVISORS1,015,844 sh	1,015,844	$8.2M
GEODE CAPITAL MANAGEMENT894,720 sh	894,720	$7.2M
STATE STREET755,698 sh	755,698	$6.1M
MORGAN STANLEY631,581 sh	631,581	$5.1M
Groupe la Francaise365,400 sh	365,400	$3.0M
NORTHERN329,403 sh	329,403	$2.7M
CHARLES SCHWAB INVESTMENT MANAGEMENT316,798 sh	316,798	$2.6M
Jasper Ridge Partners, L.P.283,324 sh	283,324	$2.3M
MILLENNIUM MANAGEMENT259,973 sh	259,973	$2.1M
GABELLI FUNDS247,719 sh	247,719	$2.0M
ABC ARBITRAGE SA247,396 sh	247,396	$2.0M
CREDIT INDUSTRIEL ET COMMERCIAL246,639 sh	246,639	$2.0M
VANGUARD FIDUCIARY245,418 sh	245,418	$2.0M
GOLDMAN SACHS GROUP239,066 sh	239,066	$1.9M
Quantinno Capital Management237,525 sh	237,525	$1.9M
VANGUARD PORTFOLIO MANAGEMENT215,043 sh	215,043	$1.7M
Squarepoint Ops213,882 sh	213,882	$1.7M
Carmignac Gestion178,555 sh	178,555	$1.4M
Trium Capital LLP176,589 sh	176,589	$1.4M
GABELLI & INVESTMENT ADVISERS171,200 sh	171,200	$1.4M
P.A.W. CAPITAL160,000 sh	160,000	$1.3M
AQR CAPITAL MANAGEMENT151,790 sh	151,790	$1.2M
ALPINE ASSOCIATES MANAGEMENT146,623 sh	146,623	$1.2M
OXFORD ASSET MANAGEMENT LLP111,985 sh	111,985	$907.1K
Bank of New York Mellon110,843 sh	110,843	$897.8K
Utah Retirement Systems98,579 sh	98,579	$798.5K
TWO SIGMA INVESTMENTS98,015 sh	98,015	$793.9K
Engineers Gate Manager91,107 sh	91,107	$738.0K
UBS Group AG90,184 sh	90,184	$730.5K
LMR Partners LLP90,000 sh	90,000	$729.0K
JPMORGAN CHASE87,478 sh	87,478	$707.7K
Skandinaviska Enskilda Banken AB (publ)74,558 sh	74,558	$603.9K
Nuveen64,193 sh	64,193	$520.0K
BNP PARIBAS FINANCIAL MARKETS61,583 sh	61,583	$498.8K
WATER ISLAND CAPITAL60,364 sh	60,364	$488.9K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS60,000 sh	60,000	$486.0K
PRICE T ROWE ASSOCIATES58,211 sh	58,211	$472.0K
XTX Topco Ltd56,612 sh	56,612	$458.6K
BARCLAYS PLC55,949 sh	55,949	$453.2K
AMERICAN CENTURY COMPANIES55,232 sh	55,232	$447.4K
ALLIANCEBERNSTEIN L.P.51,310 sh	51,310	$408.4K
PRELUDE CAPITAL MANAGEMENT50,000 sh	50,000	$405.0K
RHUMBLINE ADVISERS47,293 sh	47,293	$383.1K
CSS40,868 sh	40,868	$331.0K
PenderFund Capital Management Ltd.37,500 sh	37,500	$303.8K
FRANKLIN RESOURCES31,225 sh	31,225	$252.9K
FMR30,555 sh	30,555	$247.5K
Murchinson Ltd.30,100 sh	30,100	$243.8K
Polar Asset Management Partners30,000 sh	30,000	$243.0K
SG Americas Securities28,990 sh	28,990	$235.0K
MERCER GLOBAL ADVISORS28,853 sh	28,853	$233.7K
BANK OF MONTREAL26,698 sh	26,698	$216.3K
BALYASNY ASSET MANAGEMENT L.P.25,394 sh	25,394	$205.7K
MetLife Investment Management22,266 sh	22,266	$180.4K
Vanguard Personalized Indexing Management18,968 sh	18,968	$153.6K
Verdad Advisers18,770 sh	18,770	$152.0K
MIRAE ASSET GLOBAL ETFS Ltd.17,852 sh	17,852	$144.6K
Vanguard Global Advisers16,987 sh	16,987	$137.6K
WELLS FARGO & COMPANY14,151 sh	14,151	$114.6K
SUSQUEHANNA INTERNATIONAL GROUP, LLP12,389 sh	12,389	$100.4K
WEALTH ENHANCEMENT ADVISORY SERVICES11,349 sh	11,349	$91.9K
Versant Capital Management11,242 sh	11,242	$91.1K
TWO SIGMA SECURITIES10,592 sh	10,592	$85.8K
Corient Private Wealth10,072 sh	10,072	$81.6K
Creative Planning10,056 sh	10,056	$81.5K
Police & Firemen's Retirement System of New Jersey9,397 sh	9,397	$76.1K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME7,743 sh	7,743	$62.7K
PNC FINANCIAL SERVICES GROUP6,923 sh	6,923	$56.1K
NEW YORK STATE COMMON RETIREMENT FUND4,048 sh	4,048	$32.8K
Legal & General Group Plc3,367 sh	3,367	$27.3K
Ameritas Investment Partners3,120 sh	3,120	$25.3K
Rockefeller Capital Management L.P.3,010 sh	3,010	$24.4K
CITIGROUP2,280 sh	2,280	$18.5K
Tower Research Capital (TRC)2,207 sh	2,207	$17.9K
NISA INVESTMENT ADVISORS2,096 sh	2,096	$17.0K
Russell Investments Group, Ltd.2,083 sh	2,083	$16.9K
Allworth Financial2,046 sh	2,046	$16.6K
SIMPLEX TRADING1,875 sh	1,875	$15.2K
Fortitude Family Office1,570 sh	1,570	$12.7K
GROUP ONE TRADING, L.P.1,499 sh	1,499	$12.1K
EverSource Wealth Advisors2,263 sh	2,263	$10.8K
SRS Capital Advisors1,212 sh	1,212	$9.8K
Covestor Ltd1,066 sh	1,066	$9.0K
GAMMA Investing1,099 sh	1,099	$8.9K
SIGNATUREFD887 sh	887	$7.2K
ROYAL BANK OF CANADA763 sh	763	$7.0K
Essential Partners815 sh	815	$6.6K
SBI Securities , Ltd.784 sh	784	$6.3K
MassMutual Private Wealth & , FSB595 sh	595	$4.8K
Advisors Asset Management425 sh	425	$3.4K
Optiver Holding B.V.384 sh	384	$3.1K
ZIONS BANCORPORATION, NATIONAL ASSOCIATION322 sh	322	$2.6K
Marquette Asset Management224 sh	224	$1.8K

And 19 smaller positions.

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.