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Of the 15 tracked institutions holding ONTO, 9 have a 3-year clone track record — 7 of them beat the S&P. Average holder's clone alpha: +4.3pt. It's a gauge of who owns the name, not just how many.
Among the 15 tracked institutional investors we monitor, ONTO (ONTO INNOVATION INC) is held with a combined value of $5.47B across 17,714,303 shares. The largest holder is BlackRock, Inc. with a position worth $2.08B (0.03% of their portfolio). MAVERICK CAPITAL LTD opened a new position in the most recent quarter. 5 funds increased their holdings. 9 funds reduced their position.
Total Institutional Value
$5.47B
Total Shares Held
17,714,303
Institutional Holders
15
% of Shares Outstanding
36.1%
of 49.07M shares · SEC 2026-07-31
Days to Cover
2.0-3.3%
2.56M shares short · FINRA 2026-08-14
Tracked 13F institutions hold 36.1% of ONTO's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-07-31), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $2.08B | 0.03% | -0.5% |
| 2 | VANGUARD GROUP INC | $880.28M | 0.01% | -1.6% |
| 3 | STATE STREET CORP | $588.13M | 0.02% | +3.7% |
| 4 | Point72 Asset Management, L.P. | $367.91M | 0.56% | -19.2% |
| 5 | FMR LLC | $334.28M | 0.01% | +6.6% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $322.93M | 0.03% | +40.9% |
| 7 | WELLINGTON MANAGEMENT GROUP LLP | $204.10M | 0.04% | -0.8% |
| 8 | Fisher Asset Management, LLC | $186.14M | 0.06% | -24.3% |
| 9 | AQR CAPITAL MANAGEMENT LLC | $179.42M | 0.06% | -19.2% |
| 10 | CITADEL ADVISORS LLC | $129.50M | 0.07% | +15.4% |
| Member | Type | Date |
|---|---|---|
| Rob Bresnahan | Sell | May 12, 2025 |
| Rob Bresnahan | Sell | May 9, 2025 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ONTO with a position worth $2.08B, representing 0.03% of their portfolio. In total, 15 institutional investors hold ONTO with a combined value of $5.47B.
In the most recent quarter, 1 fund opened a new position in ONTO. Additionally, 5 increased their holdings and 9 reduced their positions.
Institutional investors hold $5.47B worth of ONTO stock across 15 positions. The largest institutional holder is BlackRock, Inc. with $2.08B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ONTO, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ONTO positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$281.26
2026-09-11
YTD
+69.6%
65% of 52-week range
