Cornerstone Investment Partners, LLC
Position in ONTO — Onto Innovation Inc.
CIK 1328062
ATLANTA, GA
Position in ONTO
as of Jun 30, 2026
· filed Aug 7, 2026
Position Value
$1,551,266
+$702,892 QoQ
Shares Held
4,099
-0.9% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#341
of 686 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 90%
Shared 0%
None 10%
Common Shares in ONTO Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026Cornerstone Investment Partners, LLC holds $347,657,313 across 10 Semiconductor Equipment & Materials names. ONTO ranks #4 (0.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KLAC |
Kla Corp
|
607,345 | $183,242,059 | |
| 2 | AMAT |
Applied Materials Inc /De
|
218,915 | $158,275,545 | |
| 3 | ACMR |
ACM Research, Inc.
|
14,049 | $1,782,677 | |
| 4 | ONTO |
Onto Innovation Inc.
This page
|
4,099 | $1,551,266 | |
| 5 | UCTT |
Ultra Clean Holdings, Inc.
|
4,224 | $602,300 | |
| 6 | ICHR |
Ichor Holdings, Ltd.
|
5,294 | $594,410 | |
| 7 | KLIC |
Kulicke & Soffa Industries Inc
|
3,958 | $529,422 | |
| 8 | ACLS |
Axcelis Technologies Inc
|
2,485 | $470,783 |
All Filings in ONTO
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,551,266 | 4,099 | Shares | Sole | 2026-08-07 | |
| 2026-03-31 | $848,374 | 4,137 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $660,328 | 4,183 | Shares | Sole | 2026-01-29 | |
| 2025-09-30 | $549,443 | 4,252 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $517,770 | 5,130 | Shares | Sole | 2025-08-06 | |
| 2025-03-31 | $554,402 | 4,569 | Shares | Sole | 2025-04-30 | |
| 2024-12-31 | $610,512 | 3,663 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $724,591 | 3,491 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $775,705 | 3,533 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $731,201 | 4,038 | Shares | Sole | 2024-04-29 | |
| 2023-12-31 | $768,628 | 5,027 | Shares | Sole | 2024-01-31 | |
| 2023-09-30 | $636,579 | 4,992 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $595,045 | 5,109 | Shares | Sole | 2023-08-04 | |
| 2023-03-31 | $1,225,135 | 13,941 | Shares | Sole | 2023-04-21 | |
| 2022-12-31 | $1,019,579 | 14,974 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $980,925 | 15,315 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $1,067,510 | 15,307 | Shares | Sole | 2022-07-29 | |
| 2022-03-31 | $1,340,278 | 15,425 | Shares | Sole | 2022-04-29 | |
| 2021-12-31 | $1,561,169 | 15,422 | Shares | Sole | 2022-02-07 | |
| 2021-09-30 | $867,867 | 12,012 | Shares | Sole | 2021-10-25 | |
| 2021-06-30 | $724,191 | 9,915 | Shares | Sole | 2021-07-29 | |
| 2021-03-31 | $645,732 | 9,827 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $460,997 | 9,695 | Shares | Sole | 2021-01-28 | |
| 2020-09-30 | $348,634 | 11,707 | Shares | Sole | 2020-10-30 | |
| 2020-06-30 | $395,034 | 11,605 | Shares | Sole | 2020-07-30 | |
| 2020-03-31 | $387,697 | 13,067 | Shares | Sole | 2020-04-27 | |
| No filing history on record for this holder in this stock. | ||||||