Position in ONTO
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$12,337,470
+$7,770,712 QoQ
Shares Held
32,600
+19.0% QoQ
Ownership
0.066%
of shares outstanding
% of Portfolio
1.12%
of 13F equity value
Holder Rank
#156
of 686 holders
Holding Since
Mar 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 Jun 30, 2026Zweig-DiMenna Associates LLC holds $108,426,020 across 4 Semiconductor Equipment & Materials names. ONTO ranks #4 (11.4% 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 | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,337,470 | 32,600 | Shares | Sole | 2026-08-13 | |
| 2024-12-31 | $4,566,758 | 27,400 | Shares | Sole | 2025-01-21 | |
| 2024-09-30 | $5,649,368 | 27,218 | Shares | Sole | 2024-10-23 | |
| 2024-06-30 | $8,881,202 | 40,450 | Shares | Sole | 2024-07-24 | |
| 2024-03-31 | $7,895,088 | 43,600 | Shares | Sole | 2024-04-29 | |
| No filing history on record for this holder in this stock. | ||||||