Security key
683344105
- Security type / class
- Equity / Common Stock
- Shares outstanding
- 49,756,727
- Total 13F shares
- 47,695,518
- Share change
- +28,802
- Total reported value
- $9,772,794,662
- Put/Call ratio
- 78%
- Reported price per share
- $205.07
- Number of holders
- 569
- Value change
- +$66,650,653
- Number of buys
- 318
- Number of sells
- 217
Security identity
Holder snapshot
Report period
Q1 2026
Institutions
569
Top holders
10
ONTO full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
ONTO INNOVATION INC. SEC filings
ONTO INNOVATION INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 683344105
Recent filing periods:
Ownership snapshot
Top reported holders of ONTO - ONTO INNOVATION INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
BlackRock, Inc.
13D/G signal
BlackRock, Inc.
Evidence rows
15
Latest as of
31 Mar 2026
13F
13D/G
Lead comparable stake: 10%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Rank 1 holder
BlackRock, Inc.
13F
13D/G
- Ownership
- 10%
- Position
- $778.54M
Rank 2 holder
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
- Ownership
- 5.5%
- Position
- $564.26M
Rank 3 holder
VANGUARD CAPITAL MANAGEMENT LLC
13D/G
- Ownership
- 5.2%
- Position
- $533.76M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
10%
from 13D/G
|
$778,538,132
4,931,826 shares
|
— | 31 Dec 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
Vanguard Portfolio Management
|
5.5%
|
$564,259,743
2,751,547 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
Vanguard Capital Management
|
5.2%
|
$533,762,348
2,602,830 shares
|
$0 | 31 Mar 2026 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$880,275,507
5,576,305 shares
|
— | 31 Dec 2025 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13F
Company
|
3.5%
|
$272,559,024
1,726,587 shares
|
— | 31 Dec 2025 |
| STATE STREET CORP |
13F
Company
|
2.9%
|
$230,361,625
1,459,278 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
569
Shares
47,695,518
Rows available
569
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
488
Q1 2026 holders
569
Holder diff
81
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend