Position in ONTO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$6,152,100
+$1,416,300 QoQ
Shares Held
30,000
0.0% QoQ
Ownership
0.060%
of shares outstanding
% of Portfolio
3.96%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2024
5 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, 20264D Advisors, LLC holds $25,084,500 across 5 Semiconductor Equipment & Materials names. ONTO ranks #1 (24.5% of the industry book) .
All Filings in ONTO
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5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,152,100 | 30,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $4,735,800 | 30,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $9,045,400 | 70,000 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,027,900 | 30,000 | Shares | Sole | 2025-08-14 | |
| 2024-12-31 | $4,166,750 | 25,000 | Shares | Sole | 2025-02-14 | |
| No filing history on record for this holder in this stock. | ||||||