Position in ONTO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,166,438
+$258,428 QoQ
Shares Held
5,688
-1.1% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.63%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ONTO Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Mar 31, 2026IRONWOOD INVESTMENT MANAGEMENT LLC holds $4,090,107 across 3 Semiconductor Equipment & Materials names. ONTO ranks #2 (28.5% of the industry book) .
All Filings in ONTO
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4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,166,438 | 5,688 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $908,010 | 5,752 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $744,824 | 5,764 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $586,504 | 5,811 | Shares | Sole | 2025-08-13 | |
| No filing history on record for this holder in this stock. | ||||||