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Of the 16 tracked institutions holding ONTO, 9 have a 3-year clone track record — 7 of them beat the S&P. Average holder's clone alpha: +3.9pt. It's a gauge of who owns the name, not just how many.
Among the 16 tracked institutional investors we monitor, ONTO (ONTO INNOVATION INC) is held with a combined value of $3.44B across 18,037,003 shares. The largest holder is BlackRock, Inc. with a position worth $1.13B (0.02% of their portfolio). 3 funds opened new positions in the most recent quarter. 6 funds increased their holdings. 7 funds reduced their position.
Total Institutional Value
$3.44B
Total Shares Held
18,037,003
Institutional Holders
16
% of Shares Outstanding
36.3%
of 49.74M shares · SEC 2026-05-01
Days to Cover
2.0+2.2%
2.69M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 36.3% 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 2026-05-01), 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. | $1.13B | 0.02% | +12.2% |
| 2 | VANGUARD GROUP INC | $880.28M | 0.01% | -1.6% |
| 3 | STATE STREET CORP | $307.63M | 0.01% | +2.8% |
| 4 | Point72 Asset Management, L.P. | $246.83M | 0.43% | +212.8% |
| 5 | FMR LLC | $170.00M | 0.01% | +83.7% |
| 6 | Fisher Asset Management, LLC | $133.29M | 0.05% | -7.4% |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $124.23M | 0.01% | -10.9% |
| 8 | AQR CAPITAL MANAGEMENT LLC | $121.16M | 0.06% | -4.0% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $111.54M | 0.02% | -55.4% |
| 10 | Bridgewater Associates, LP | $71.45M | 0.32% | +274.1% |
| 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 $1.13B, representing 0.02% of their portfolio. In total, 16 institutional investors hold ONTO with a combined value of $3.44B.
In the most recent quarter, 3 funds opened a new position in ONTO. Additionally, 6 increased their holdings and 7 reduced their positions.
Institutional investors hold $3.44B worth of ONTO stock across 16 positions. The largest institutional holder is BlackRock, Inc. with $1.13B 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
$241.89
2026-07-28
YTD
+45.8%
53% of 52-week range
