Quarterhill Inc. SEC filings QTRHF
Quarterhill Inc. has 375 filings in SEC EDGAR's recent list, going back to Apr 27, 2011. Its latest annual report, Form 40-F, was filed on Feb 28, 2019 for the period ended Dec 31, 2018. The most recent current report (Form 6-K) was filed on Dec 23, 2019. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| D | Filing | Oct 14, 2026 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| 6-K | Current report (foreign issuer) | Dec 23, 2019 | Dec 23, 2019 |
| 15-12B | Deregistration | Dec 23, 2019 | — |
| 6-K | Current report (foreign issuer) | Dec 18, 2019 | Dec 18, 2019 |
| 25 | Form 25 | Dec 13, 2019 | — |
| 6-K | Current report (foreign issuer) | Dec 5, 2019 | Dec 5, 2019 |
| 6-K | Current report (foreign issuer) | Dec 3, 2019 | Dec 3, 2019 |
| 6-K | Current report (foreign issuer) | Nov 25, 2019 | Nov 25, 2019 |
| 6-K | Current report (foreign issuer) | Nov 19, 2019 | Nov 18, 2019 |
| 6-K | Current report (foreign issuer) | Nov 14, 2019 | Nov 13, 2019 |
| 6-K | Current report (foreign issuer) | Nov 7, 2019 | Nov 7, 2019 |
| 6-K | Current report (foreign issuer) | Nov 7, 2019 | Nov 7, 2019 |
| 6-K | Current report (foreign issuer) | Oct 24, 2019 | Oct 24, 2019 |
| 6-K | Current report (foreign issuer) | Oct 22, 2019 | Oct 22, 2019 |
| 6-K | Current report (foreign issuer) | Oct 8, 2019 | Oct 8, 2019 |
| S-8 POS | Filing | Oct 1, 2019 | — |
| S-8 POS | Filing | Oct 1, 2019 | — |
| 6-K | Current report (foreign issuer) | Oct 1, 2019 | Oct 1, 2019 |
| 6-K | Current report (foreign issuer) | Aug 8, 2019 | Aug 8, 2019 |
| 6-K | Current report (foreign issuer) | Aug 8, 2019 | Aug 8, 2019 |
| 6-K | Current report (foreign issuer) | Aug 8, 2019 | Aug 8, 2019 |
| 6-K | Current report (foreign issuer) | Jul 25, 2019 | Jul 25, 2019 |
| 6-K | Current report (foreign issuer) | Jun 17, 2019 | Jun 17, 2019 |
| 6-K | Current report (foreign issuer) | Jun 13, 2019 | Jun 13, 2019 |
| 6-K | Current report (foreign issuer) | May 9, 2019 | May 9, 2019 |
| 6-K | Current report (foreign issuer) | May 9, 2019 | May 9, 2019 |
| 6-K | Current report (foreign issuer) | Apr 25, 2019 | Apr 25, 2019 |
| 6-K | Current report (foreign issuer) | Apr 23, 2019 | Apr 23, 2019 |
| 6-K | Current report (foreign issuer) | Apr 16, 2019 | Apr 16, 2019 |
| 6-K | Current report (foreign issuer) | Apr 2, 2019 | Apr 2, 2019 |
| 6-K | Current report (foreign issuer) | Mar 1, 2019 | Mar 1, 2019 |
| 6-K | Current report (foreign issuer) | Feb 28, 2019 | Feb 28, 2019 |
| 6-K | Current report (foreign issuer) | Feb 28, 2019 | Feb 28, 2019 |
| 40-F | Annual report (Canadian issuer) | Feb 28, 2019 | Dec 31, 2018 |
| 6-K | Current report (foreign issuer) | Feb 14, 2019 | Feb 14, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2019 | — |
| 6-K | Current report (foreign issuer) | Jan 16, 2019 | Jan 16, 2019 |
| 6-K | Current report (foreign issuer) | Jan 10, 2019 | Jan 10, 2019 |
| 6-K | Current report (foreign issuer) | Jan 7, 2019 | Jan 7, 2019 |
| 6-K | Current report (foreign issuer) | Dec 20, 2018 | Dec 20, 2018 |
| 6-K | Current report (foreign issuer) | Dec 20, 2018 | Dec 20, 2018 |
| 6-K | Current report (foreign issuer) | Dec 19, 2018 | Dec 19, 2018 |
| 6-K | Current report (foreign issuer) | Dec 13, 2018 | Dec 13, 2018 |
| 6-K | Current report (foreign issuer) | Dec 11, 2018 | Dec 11, 2018 |
| 6-K | Current report (foreign issuer) | Nov 8, 2018 | Nov 8, 2018 |
| 6-K | Current report (foreign issuer) | Nov 8, 2018 | Nov 8, 2018 |
| 6-K | Current report (foreign issuer) | Oct 25, 2018 | Oct 25, 2018 |
| 6-K | Current report (foreign issuer) | Oct 4, 2018 | Oct 4, 2018 |
| 6-K | Current report (foreign issuer) | Oct 3, 2018 | Oct 3, 2018 |
| 6-K | Current report (foreign issuer) | Sep 13, 2018 | Sep 13, 2018 |
| 6-K | Current report (foreign issuer) | Aug 9, 2018 | Aug 9, 2018 |
| 6-K | Current report (foreign issuer) | Aug 9, 2018 | Aug 9, 2018 |
| 6-K | Current report (foreign issuer) | Aug 2, 2018 | Aug 1, 2018 |
| 6-K | Current report (foreign issuer) | Jul 19, 2018 | Jul 19, 2018 |
| 6-K | Current report (foreign issuer) | Jun 14, 2018 | Jun 14, 2018 |
| 6-K | Current report (foreign issuer) | Jun 14, 2018 | Jun 14, 2018 |
| S-8 | Employee stock plan registration | May 17, 2018 | — |
| F-X/A | Filing | May 17, 2018 | — |
| 6-K | Current report (foreign issuer) | May 10, 2018 | May 10, 2018 |
| 6-K | Current report (foreign issuer) | May 10, 2018 | May 10, 2018 |
| 6-K | Current report (foreign issuer) | Apr 30, 2018 | Apr 30, 2018 |
| 6-K | Current report (foreign issuer) | Apr 23, 2018 | Apr 19, 2018 |
| 6-K | Current report (foreign issuer) | Apr 19, 2018 | Apr 19, 2018 |
| 6-K | Current report (foreign issuer) | Apr 17, 2018 | Apr 17, 2018 |
| 6-K | Current report (foreign issuer) | Mar 16, 2018 | Mar 16, 2018 |
| 40-F | Annual report (Canadian issuer) | Mar 1, 2018 | Dec 31, 2017 |
| 6-K | Current report (foreign issuer) | Mar 1, 2018 | Mar 1, 2018 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| 6-K | Current report (foreign issuer) | Feb 5, 2018 | Feb 5, 2018 |
| 40-F/A | Amended annual report (Canadian issuer) | Dec 7, 2017 | Dec 31, 2016 |
| 6-K | Current report (foreign issuer) | Dec 4, 2017 | Dec 4, 2017 |
| 6-K | Current report (foreign issuer) | Nov 29, 2017 | Nov 29, 2017 |
| 6-K | Current report (foreign issuer) | Nov 9, 2017 | Nov 9, 2017 |
| 6-K | Current report (foreign issuer) | Nov 9, 2017 | Nov 9, 2017 |
| 6-K | Current report (foreign issuer) | Oct 2, 2017 | Oct 2, 2017 |
| 6-K | Current report (foreign issuer) | Sep 29, 2017 | Sep 29, 2017 |
| 6-K | Current report (foreign issuer) | Sep 26, 2017 | Sep 26, 2017 |
| 6-K | Current report (foreign issuer) | Aug 29, 2017 | Aug 29, 2017 |
| 6-K | Current report (foreign issuer) | Aug 11, 2017 | Aug 11, 2017 |
| 6-K | Current report (foreign issuer) | Aug 10, 2017 | Aug 10, 2017 |
| 6-K | Current report (foreign issuer) | Jul 26, 2017 | Jul 26, 2017 |
| 6-K | Current report (foreign issuer) | Jul 25, 2017 | Jul 25, 2017 |
| 6-K | Current report (foreign issuer) | Jul 18, 2017 | Jul 18, 2017 |
| 6-K | Current report (foreign issuer) | Jun 13, 2017 | Jun 13, 2017 |
| 6-K | Current report (foreign issuer) | Jun 12, 2017 | Jun 12, 2017 |
| 6-K | Current report (foreign issuer) | Jun 1, 2017 | Jun 1, 2017 |
| 6-K/A | Filing | May 5, 2017 | May 4, 2017 |
| 6-K | Current report (foreign issuer) | May 4, 2017 | May 4, 2017 |
| 6-K | Current report (foreign issuer) | May 4, 2017 | May 4, 2017 |
| 6-K | Current report (foreign issuer) | May 4, 2017 | May 4, 2017 |
| 6-K | Current report (foreign issuer) | Apr 27, 2017 | Apr 27, 2017 |
| 6-K | Current report (foreign issuer) | Apr 24, 2017 | Apr 24, 2017 |
| 6-K | Current report (foreign issuer) | Apr 21, 2017 | Apr 21, 2017 |
| 6-K | Current report (foreign issuer) | Apr 18, 2017 | Apr 17, 2017 |
| 6-K | Current report (foreign issuer) | Apr 18, 2017 | Apr 17, 2017 |
| 6-K | Current report (foreign issuer) | Mar 20, 2017 | Mar 20, 2017 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2017 | — |
| 6-K | Current report (foreign issuer) | Feb 10, 2017 | Feb 10, 2017 |
| 40-F | Annual report (Canadian issuer) | Feb 10, 2017 | Dec 31, 2016 |
| 6-K | Current report (foreign issuer) | Feb 9, 2017 | Feb 9, 2017 |
| 6-K | Current report (foreign issuer) | Feb 9, 2017 | Feb 9, 2017 |
| 6-K | Current report (foreign issuer) | Feb 1, 2017 | Feb 1, 2017 |
| 6-K | Current report (foreign issuer) | Jan 30, 2017 | Jan 30, 2017 |
| 6-K | Current report (foreign issuer) | Jan 23, 2017 | Jan 23, 2017 |
| 6-K | Current report (foreign issuer) | Jan 19, 2017 | Jan 18, 2017 |
| 6-K | Current report (foreign issuer) | Dec 29, 2016 | Dec 29, 2016 |
| 6-K | Current report (foreign issuer) | Dec 16, 2016 | Dec 16, 2016 |
| 6-K | Current report (foreign issuer) | Dec 13, 2016 | Dec 13, 2016 |
| 6-K | Current report (foreign issuer) | Dec 12, 2016 | Dec 12, 2016 |
| 6-K | Current report (foreign issuer) | Dec 6, 2016 | Dec 6, 2016 |
| 6-K | Current report (foreign issuer) | Nov 30, 2016 | Nov 30, 2016 |
| 6-K | Current report (foreign issuer) | Nov 7, 2016 | Nov 7, 2016 |
| 6-K | Current report (foreign issuer) | Nov 4, 2016 | Nov 4, 2016 |
| 6-K | Current report (foreign issuer) | Nov 3, 2016 | Nov 3, 2016 |
| 6-K | Current report (foreign issuer) | Oct 20, 2016 | Oct 20, 2016 |
| 6-K | Current report (foreign issuer) | Oct 4, 2016 | Oct 4, 2016 |
| 6-K | Current report (foreign issuer) | Sep 27, 2016 | Sep 27, 2016 |
| 6-K | Current report (foreign issuer) | Sep 21, 2016 | Sep 21, 2016 |
| 6-K | Current report (foreign issuer) | Sep 14, 2016 | Sep 14, 2016 |
| 6-K | Current report (foreign issuer) | Aug 2, 2016 | Aug 2, 2016 |
| 6-K | Current report (foreign issuer) | Jul 29, 2016 | Jul 29, 2016 |
| 6-K | Current report (foreign issuer) | Jul 28, 2016 | Jul 28, 2016 |
| 6-K | Current report (foreign issuer) | Jul 14, 2016 | Jul 14, 2016 |
| 6-K | Current report (foreign issuer) | Jun 30, 2016 | Jun 30, 2016 |
| 6-K | Current report (foreign issuer) | Jun 30, 2016 | Jun 30, 2016 |
| 6-K | Current report (foreign issuer) | Jun 29, 2016 | Jun 29, 2016 |
| 6-K | Current report (foreign issuer) | Jun 28, 2016 | Jun 28, 2016 |
| 6-K | Current report (foreign issuer) | Jun 22, 2016 | Jun 22, 2016 |
| 6-K | Current report (foreign issuer) | Jun 15, 2016 | Jun 15, 2016 |
| 6-K | Current report (foreign issuer) | Jun 9, 2016 | Jun 9, 2016 |
| 6-K | Current report (foreign issuer) | May 25, 2016 | May 25, 2016 |
| 6-K | Current report (foreign issuer) | May 10, 2016 | May 10, 2016 |
| 6-K | Current report (foreign issuer) | May 9, 2016 | May 9, 2016 |
| 6-K | Current report (foreign issuer) | May 2, 2016 | May 2, 2016 |
| 6-K | Current report (foreign issuer) | Apr 29, 2016 | Apr 29, 2016 |
| 6-K | Current report (foreign issuer) | Apr 27, 2016 | Apr 27, 2016 |
| 6-K | Current report (foreign issuer) | Apr 20, 2016 | Apr 20, 2016 |
| 6-K | Current report (foreign issuer) | Apr 15, 2016 | Apr 15, 2016 |
| 6-K | Current report (foreign issuer) | Apr 13, 2016 | Apr 13, 2016 |
| 6-K | Current report (foreign issuer) | Apr 8, 2016 | Apr 8, 2016 |
| 6-K | Current report (foreign issuer) | Apr 4, 2016 | Apr 4, 2016 |
| 6-K | Current report (foreign issuer) | Apr 1, 2016 | Apr 1, 2016 |
| 6-K | Current report (foreign issuer) | Mar 15, 2016 | Mar 15, 2016 |
| 6-K | Current report (foreign issuer) | Feb 23, 2016 | Feb 23, 2016 |
| 6-K | Current report (foreign issuer) | Feb 16, 2016 | Feb 16, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2016 | — |
| 6-K | Current report (foreign issuer) | Feb 10, 2016 | Feb 10, 2016 |
| 6-K | Current report (foreign issuer) | Feb 8, 2016 | Feb 8, 2016 |
| 40-F | Annual report (Canadian issuer) | Feb 8, 2016 | Dec 31, 2015 |
| 6-K | Current report (foreign issuer) | Feb 4, 2016 | Feb 4, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2016 | — |
| 6-K | Current report (foreign issuer) | Jan 25, 2016 | Jan 25, 2016 |
| 6-K | Current report (foreign issuer) | Jan 25, 2016 | Jan 25, 2016 |
| 6-K | Current report (foreign issuer) | Jan 19, 2016 | Jan 19, 2016 |
| 6-K | Current report (foreign issuer) | Jan 13, 2016 | Jan 13, 2016 |
| 6-K | Current report (foreign issuer) | Jan 11, 2016 | Jan 11, 2016 |
| 6-K | Current report (foreign issuer) | Jan 6, 2016 | Jan 6, 2016 |
| 6-K | Current report (foreign issuer) | Jan 5, 2016 | Jan 5, 2016 |
| 6-K | Current report (foreign issuer) | Dec 30, 2015 | Dec 30, 2015 |
| 6-K | Current report (foreign issuer) | Dec 29, 2015 | Dec 29, 2015 |
| 6-K | Current report (foreign issuer) | Dec 24, 2015 | Dec 23, 2015 |
| 6-K | Current report (foreign issuer) | Dec 22, 2015 | Dec 22, 2015 |
| 6-K | Current report (foreign issuer) | Dec 21, 2015 | Dec 21, 2015 |
| 6-K | Current report (foreign issuer) | Dec 9, 2015 | Dec 9, 2015 |
| 6-K | Current report (foreign issuer) | Dec 1, 2015 | Dec 1, 2015 |
| 6-K | Current report (foreign issuer) | Nov 30, 2015 | Nov 30, 2015 |
| 6-K | Current report (foreign issuer) | Nov 30, 2015 | Nov 30, 2015 |
| 6-K | Current report (foreign issuer) | Nov 10, 2015 | Nov 10, 2015 |
| 6-K | Current report (foreign issuer) | Nov 9, 2015 | Nov 9, 2015 |
| 6-K | Current report (foreign issuer) | Nov 5, 2015 | Nov 5, 2015 |
| 6-K | Current report (foreign issuer) | Nov 4, 2015 | Nov 4, 2015 |
| 6-K | Current report (foreign issuer) | Nov 4, 2015 | Nov 4, 2015 |
| 6-K | Current report (foreign issuer) | Oct 21, 2015 | Oct 21, 2015 |
| 6-K | Current report (foreign issuer) | Oct 6, 2015 | Oct 6, 2015 |
| 6-K | Current report (foreign issuer) | Oct 5, 2015 | Oct 5, 2015 |
| 6-K | Current report (foreign issuer) | Oct 1, 2015 | Oct 1, 2015 |
| 6-K | Current report (foreign issuer) | Sep 22, 2015 | Sep 22, 2015 |
| 6-K | Current report (foreign issuer) | Sep 16, 2015 | Sep 16, 2015 |
| 6-K | Current report (foreign issuer) | Sep 14, 2015 | Sep 14, 2015 |
| 6-K | Current report (foreign issuer) | Sep 10, 2015 | Sep 10, 2015 |
| 6-K | Current report (foreign issuer) | Sep 10, 2015 | Sep 10, 2015 |
| 6-K | Current report (foreign issuer) | Sep 9, 2015 | Sep 9, 2015 |
| 6-K | Current report (foreign issuer) | Sep 3, 2015 | Sep 3, 2015 |
| 6-K | Current report (foreign issuer) | Sep 2, 2015 | Sep 2, 2015 |
| 6-K | Current report (foreign issuer) | Aug 17, 2015 | Aug 17, 2015 |
| 6-K | Current report (foreign issuer) | Aug 17, 2015 | Aug 17, 2015 |
| 40-F/A | Amended annual report (Canadian issuer) | Aug 13, 2015 | Dec 31, 2014 |
| 6-K | Current report (foreign issuer) | Aug 6, 2015 | Aug 6, 2015 |
| 6-K | Current report (foreign issuer) | Jul 29, 2015 | Jul 29, 2015 |
| 6-K | Current report (foreign issuer) | Jul 20, 2015 | Jul 20, 2015 |
| 6-K | Current report (foreign issuer) | Jul 15, 2015 | Jul 15, 2015 |
| 6-K | Current report (foreign issuer) | Jul 6, 2015 | Jul 6, 2015 |
| 6-K | Current report (foreign issuer) | Jun 30, 2015 | Jun 29, 2015 |
| 6-K | Current report (foreign issuer) | Jun 26, 2015 | Jun 26, 2015 |
| 6-K | Current report (foreign issuer) | Jun 25, 2015 | Jun 25, 2015 |
| 6-K | Current report (foreign issuer) | Jun 22, 2015 | Jun 22, 2015 |
| 6-K | Current report (foreign issuer) | Jun 10, 2015 | Jun 10, 2015 |
| 6-K | Current report (foreign issuer) | Jun 2, 2015 | Jun 2, 2015 |
| 6-K | Current report (foreign issuer) | Jun 2, 2015 | Jun 2, 2015 |
Showing 200 filings, the most recent 200. 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.
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Company profile
- Industry
- Patent Owners & Lessors (SIC 6794)
- Listed as
- QTRHF (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- Ontario, Canada
- Headquarters
- Toronto
- SEC CIK
- 1518419
- Former names
- Wi-LAN Inc. (until May 5, 2017)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.