ONTO
ONTO INNOVATION (ONTO)
NYSE
$199.00-$23.14 (-10.42%)
Price as of Oct 22, 2026 5:20 PM EDT
  • $10.9B
    Market Cap
  • 77.03%
    1-Year Change
  • Semiconductor Equipment & Materials
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
12.31%
6.0M
+68,232 (+1.13%)
Dec 31, 2024
VANGUARD GROUP INC
11.36%
5.6M
-91,099 (-1.63%)
Dec 31, 2025
BLACKROCK, INC.
11.22%
5.5M
-29,084 (-0.53%)
Jun 30, 2026
BLACKROCK INC.
9.95%
4.9M
-1.3M (-25.65%)
Jun 30, 2024
N/A
5.56%
2.7M
-15,109 (-0.55%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
5.56%
2.7M
-15,109 (-0.55%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
4.58%
2.2M
+24,885 (+1.11%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions901.3M (74.55%)
  • Mutual Funds303.3M (25.09%)
  • Insiders4.4M (0.37%)
  • Other0 (0.00%)

Insider Transactions

  • 0.37% (4.4M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 2
    Number of InsiderSelling (last 12 months)
  • $3.1M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
MILLER DAVID BRIAN
Sell
Sep 29, 2026
$600,000.00
2,000
$300.00
10,692
Lynch Susan D
Sell
Aug 21, 2026
$302,300.00
1,000
$302.30
2,684