Onterris, Inc. SEC filings ONT
Onterris, Inc. has 382 filings in SEC EDGAR's recent list, going back to Jun 8, 2015. Its latest annual report, Form ARS, was filed on Mar 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| CERT | Nyse certification | Aug 11, 2026 | — |
| 8-A12B/A | Filing | Aug 10, 2026 | — |
| 8-A12B | Filing | Aug 5, 2026 | — |
| UPLOAD | Letter from the SEC | Jun 10, 2024 | — |
| CORRESP | Letter to the SEC | May 16, 2024 | — |
| UPLOAD | Letter from the SEC | May 6, 2024 | — |
| UPLOAD | Letter from the SEC | Jun 16, 2022 | — |
| CORRESP | Letter to the SEC | Jun 16, 2022 | — |
| CORRESP | Letter to the SEC | May 31, 2022 | — |
| UPLOAD | Letter from the SEC | May 18, 2022 | — |
| CORRESP | Letter to the SEC | May 11, 2022 | — |
| UPLOAD | Letter from the SEC | Apr 28, 2022 | — |
| EFFECT | Filing | Aug 20, 2021 | — |
| CORRESP | Letter to the SEC | Aug 18, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 18, 2021 | — |
| EFFECT | Filing | Nov 24, 2020 | — |
| CORRESP | Letter to the SEC | Nov 23, 2020 | — |
| CORRESP | Letter to the SEC | Nov 23, 2020 | — |
| UPLOAD | Letter from the SEC | Nov 19, 2020 | — |
| DRS | Filing | Nov 13, 2020 | — |
| EFFECT | Filing | Jul 22, 2020 | — |
| CORRESP | Letter to the SEC | Jul 20, 2020 | — |
| CORRESP | Letter to the SEC | Jul 20, 2020 | — |
| CORRESP | Letter to the SEC | Jul 20, 2020 | — |
| CERT | Nyse certification | Jul 20, 2020 | — |
| 8-A12B | Filing | Jul 17, 2020 | — |
| UPLOAD | Letter from the SEC | Jul 14, 2020 | — |
| CORRESP | Letter to the SEC | Jul 14, 2020 | — |
| CORRESP | Letter to the SEC | Jul 13, 2020 | — |
| DRS/A | Filing | Jun 3, 2020 | — |
| DRSLTR | Filing | Dec 20, 2019 | — |
| DRS/A | Filing | Dec 20, 2019 | — |
| UPLOAD | Letter from the SEC | Dec 13, 2019 | — |
| DRS | Filing | Nov 15, 2019 | — |
| D/A | Filing | Jun 10, 2015 | — |
| D | Filing | Jun 8, 2015 | — |
Showing 36 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Services-Management Consulting Services (SIC 8742)
- Listed as
- ONT (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Irvine, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1643615
- Former names
- Montrose Environmental Group, Inc. (until Apr 21, 2026)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.