Position in ONTO
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$129,500,670
+$68,683,061 QoQ
Shares Held
342,187
+15.4% QoQ
Ownership
0.697%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
#35
of 686 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ONTO Over Time
Shares Held
Position Value (USD)
Derivatives in ONTO
reported options exposure · as of Jun 30, 2026CallValue
$50,182,470
CallShares
132,600
PutValue
$22,858,380
PutShares
60,400
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026CITADEL ADVISORS LLC holds $3,316,848,873 across 26 Semiconductor Equipment & Materials names. ONTO ranks #5 (3.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMAT |
Applied Materials Inc /De
|
1,080,951 | $781,527,573 | |
| 2 | KLAC |
Kla Corp
|
2,541,076 | $766,668,039 | |
| 3 | LRCX |
Lam Research Corp
|
1,420,975 | $615,751,095 | |
| 4 | ASML |
Asml Holding NV
|
188,358 | $374,726,919 | |
| 5 | ONTO |
Onto Innovation Inc.
This page
|
342,187 | $129,500,670 | |
| 6 | AXTI |
Axt Inc
|
1,481,332 | $106,774,410 | |
| 7 | Q |
Qnity Electronics, Inc.
|
613,148 | $100,133,199 | |
| 8 | AMKR |
Amkor Technology, Inc.
|
1,028,138 | $88,656,339 |
All Filings in ONTO
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $129,500,670 | 342,187 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $50,182,470 | 132,600 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $22,858,380 | 60,400 | Put | Defined | 2026-08-14 | |
| 2026-03-31 | $9,638,290 | 47,000 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $9,986,909 | 48,700 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $60,817,609 | 296,570 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $21,905,600 | 138,766 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $4,057,002 | 25,700 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $3,725,496 | 23,600 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $8,399,300 | 65,000 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $10,260,068 | 79,400 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $50,561,459 | 391,282 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $29,175,228 | 289,064 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $8,377,190 | 83,000 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $10,355,418 | 102,600 | Put | Defined | 2025-08-14 | |
| 2025-03-31 | $7,195,462 | 59,300 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $377,974 | 3,115 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $10,156,158 | 83,700 | Put | Defined | 2025-05-15 | |
| 2024-12-31 | $3,960,578 | 23,763 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $3,750,075 | 22,500 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $3,600,072 | 21,600 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $3,113,400 | 15,000 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $934,227 | 4,501 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $6,102,264 | 29,400 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $2,700,588 | 12,300 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $6,147,680 | 28,000 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $32,333,722 | 147,266 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $11,263,176 | 62,200 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $3,612,364 | 19,949 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $3,531,060 | 19,500 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $6,039,550 | 39,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $5,596,140 | 36,600 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $4,919,404 | 32,174 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $6,465,264 | 50,700 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $4,004,128 | 31,400 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $6,836,439 | 58,697 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $4,414,213 | 37,900 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $1,106,465 | 9,500 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $940,316 | 10,700 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $2,363,972 | 26,900 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $1,697,142 | 24,925 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $1,429,890 | 21,000 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $1,130,294 | 16,600 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $851,865 | 13,300 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $2,939,895 | 45,900 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $6,520,545 | 101,804 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $1,750,474 | 25,100 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $2,883,748 | 41,350 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $2,071,278 | 29,700 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $2,926,802 | 33,684 | Shares | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||