ONTO INNOVATION INC (ONTO) Institutional Ownership

ONTO is currently held by 3 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $22.50M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.

The largest disclosed holder is Bares Capital Management, which reported ownership valued at approximately $9.75M in its September 30, 2025 13F filing. Based on current market prices and the latest disclosed share count, Bares Capital Management's ONTO position is now estimated to be worth approximately $24.06M, representing an estimated gain of +146.80% since the filing period.

Major shareholders tracked on this page include Bares Capital Management, First Eagle U.S. Value, Sequoia Financial Advisors, and other prominent asset managers. Collectively, these investors account for approximately 100% of the total disclosed value among the investors covered in this analysis.

This page tracks 13F-reported ownership trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward ONTO INNOVATION INC (ONTO).