ONTO SEC Filings
SEC filings for ONTO. Annual and quarterly reports, 8-K events,
Form 4 insider filings and 13D/G stake disclosures.
| Form | Filed | Accession |
|---|---|---|
| 4ROBERTS BRIAN KChief Financial Officer | Sep 5, 2026 | 0001259094-26-000007EDGAR |
| 4Chen ShirleySenior Vice President of Custo | Sep 4, 2026 | 0002074793-26-000008EDGAR |
| 4Lynch Susan D | Aug 25, 2026 | 0001784973-26-000007EDGAR |
| 8-K | Aug 10, 2026 | 0001193125-26-341337EDGAR |
| 8-K | Aug 6, 2026 | 0001193125-26-337990EDGAR |
| 10-Q | Aug 6, 2026 | 0001193125-26-338401EDGAR |
| 4Su May | May 22, 2026 | 0001918546-26-000003EDGAR |
| 4SEAMS CHRISTOPHER A | May 22, 2026 | 0001212426-26-000003EDGAR |
| 4SCHWARTZ STEPHEN S | May 22, 2026 | 0001247436-26-000003EDGAR |
| 4MILLER DAVID BRIAN | May 22, 2026 | 0001233488-26-000003EDGAR |
| 4Lynch Susan D | May 22, 2026 | 0001784973-26-000004EDGAR |
| 4Kelley Stephen Douglas | May 22, 2026 | 0001443674-26-000008EDGAR |
| 8-K | May 21, 2026 | 0001193125-26-234610EDGAR |
| 8-K | May 20, 2026 | 0001193125-26-232522EDGAR |
| 4YALDAEI RAMILChief Operating Officer | May 18, 2026 | 0001976282-26-000006EDGAR |
| 4OH Yoon AhSVP, Gen Counsel & Corp Sec | May 18, 2026 | 0001889970-26-000008EDGAR |
| 8-K | May 18, 2026 | 0001193125-26-227915EDGAR |
| 10-Q | May 5, 2026 | 0001193125-26-206707EDGAR |
| 8-K | May 5, 2026 | 0001193125-26-206365EDGAR |
| SC 13GVanguard Portfolio Management | Apr 29, 2026 | 0002100121-26-000541EDGAR |
| SC 13GVanguard Capital Management | Apr 29, 2026 | 0002100119-26-000054EDGAR |
| 8-K | Apr 20, 2026 | 0001193125-26-164529EDGAR |
| 8-K | Apr 16, 2026 | 0001193125-26-158081EDGAR |
| SC 13G/AamendedThe Vanguard Group | Mar 27, 2026 | 0000102909-26-001988EDGAR |
| 4ROBERTS BRIAN KChief Financial Officer | Mar 4, 2026 | 0001259094-26-000002EDGAR |
| 4Dolev IdoEVP, Prod Solutions Grp | Mar 4, 2026 | 0002046735-26-000002EDGAR |
| 4YALDAEI RAMILChief Operating Officer | Mar 4, 2026 | 0001976282-26-000004EDGAR |
| 4Plisinski Michael PChief Executive Officer | Mar 4, 2026 | 0001325550-26-000006EDGAR |
| 4OH Yoon AhSVP, Gen Counsel & Corp Sec | Mar 4, 2026 | 0001889970-26-000006EDGAR |
| 4Chen ShirleySVP Customer Success | Mar 4, 2026 | 0002074793-26-000002EDGAR |
| 4YALDAEI RAMILChief Operating Officer | Mar 3, 2026 | 0001976282-26-000002EDGAR |
| 4Plisinski Michael PChief Executive Officer | Mar 3, 2026 | 0001325550-26-000004EDGAR |
| 4OH Yoon AhSVP, Gen Counsel & Corp Sec | Mar 3, 2026 | 0001889970-26-000004EDGAR |
| 10-K | Feb 24, 2026 | 0001193125-26-066937EDGAR |
| 8-K | Feb 19, 2026 | 0001193125-26-059380EDGAR |
| 4Plisinski Michael PChief Executive Officer | Feb 18, 2026 | 0001325550-26-000002EDGAR |
| 4OH Yoon AhSVP, Gen Counsel & Corp Sec | Feb 18, 2026 | 0001889970-26-000002EDGAR |
| 4Plisinski Michael PChief Executive Officer | Dec 29, 2025 | 0001325550-25-000004EDGAR |
| 4Dolev IdoEVP, Prod Solutions Grp | Dec 4, 2025 | 0002046735-25-000004EDGAR |
| 8-K | Nov 21, 2025 | 0001193125-25-291346EDGAR |
| 8-K | Nov 17, 2025 | 0001193125-25-283980EDGAR |
| 8-K | Nov 6, 2025 | 0001193125-25-269460EDGAR |
| 10-Q | Nov 6, 2025 | 0001193125-25-270040EDGAR |
| SC 13G/AamendedBlackRock, Inc. | Oct 17, 2025 | 0002012383-25-002888EDGAR |
| 8-K | Oct 10, 2025 | 0001193125-25-236464EDGAR |
| 4YALDAEI RAMILChief Operating Officer | Oct 6, 2025 | 0001976282-25-000004EDGAR |
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Source: SEC EDGAR.