ONTO
ONTO INNOVATION (ONTO)
NYSE
$329.11+$14.23 (+4.52%)
Price as of Oct 02, 2026 3:37 PM EDT
  • $15.5B
    Market Cap
  • 125.19%
    1-Year Change
  • Semiconductor Equipment & Materials
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
12.14%
6.0M
+68,232 (+1.13%)
Dec 31, 2024
VANGUARD GROUP INC
11.21%
5.6M
-91,099 (-1.63%)
Dec 31, 2025
BLACKROCK, INC.
11.07%
5.5M
-29,084 (-0.53%)
Jun 30, 2026
BLACKROCK INC.
9.82%
4.9M
-1.3M (-25.65%)
Jun 30, 2024
N/A
5.48%
2.7M
-15,109 (-0.55%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
5.48%
2.7M
-15,109 (-0.55%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
4.52%
2.2M
+24,885 (+1.11%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions900.5M (74.55%)
  • Mutual Funds302.9M (25.08%)
  • 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