SEC Filings

Home / Investors / Financials / SEC Filings
NASDAQ: CHKOTCPK: CHKAQ
YearTrailing 12-MonthsCalendar Year 2024Calendar Year 2023Calendar Year 2022Calendar Year 2021Calendar Year 2020Calendar Year 2019Calendar Year 2018Calendar Year 2017Calendar Year 2016Calendar Year 2015Calendar Year 2014Calendar Year 2013Calendar Year 2012Calendar Year 2011Calendar Year 2010Calendar Year 2009Calendar Year 2008Calendar Year 2007Calendar Year 2006Calendar Year 2005Calendar Year 2004Calendar Year 2003Calendar Year 2002Calendar Year 2001Calendar Year 2000Calendar Year 1999Calendar Year 1998Calendar Year 1997Calendar Year 1996Calendar Year 1995
ViewAll FilingsAnnual FilingsQuarterly FilingsCurrent FilingsRegistration StatementsSection 16Mergers & AcquisitionsProxy & Information StatementsOther
FormDescriptionDateFormat
8-KReport of unscheduled material events or corporate eventJul 28, 2000Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactionsJul 27, 2000Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
8-KReport of unscheduled material events or corporate eventJul 20, 2000Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactionsJul 18, 2000Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactionsJul 14, 2000Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
S-1Registration statement for face-amount certificate companiesJul 7, 2000Open Registration statement for face-amount certificate companies in HTML.Open Registration statement for face-amount certificate companies in DOC file.Open Registration statement for face-amount certificate companies in PDF file.Open Registration statement for face-amount certificate companies in XLS file.
SC 13D/AAmendment to a SC 13D filingJul 5, 2000Open Amendment to a SC 13D filing in HTML.Open Amendment to a SC 13D filing in DOC file.Open Amendment to a SC 13D filing in PDF file.Open Amendment to a SC 13D filing in XLS file.
8-KReport of unscheduled material events or corporate eventJun 30, 2000Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
SC 13D/AAmendment to a SC 13D filingJun 29, 2000Open Amendment to a SC 13D filing in HTML.Open Amendment to a SC 13D filing in DOC file.Open Amendment to a SC 13D filing in PDF file.Open Amendment to a SC 13D filing in XLS file.
11-KAn annual report of employee stock purchase, savings and similar plansJun 28, 2000Open An annual report of employee stock purchase, savings and similar plans in HTML.Open An annual report of employee stock purchase, savings and similar plans in DOC file.Open An annual report of employee stock purchase, savings and similar plans in PDF file.Open An annual report of employee stock purchase, savings and similar plans in XLS file.
8-KReport of unscheduled material events or corporate eventJun 19, 2000Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
POS AMPost-effective amendment to an S-Type filingJun 16, 2000Open Post-effective amendment to an S-Type filing in HTML.Open Post-effective amendment to an S-Type filing in DOC file.Open Post-effective amendment to an S-Type filing in PDF file.Open Post-effective amendment to an S-Type filing in XLS file.
SC 13G/AAmendment to a previously filed SC 13GJun 9, 2000Open Amendment to a previously filed SC 13G in HTML.Open Amendment to a previously filed SC 13G in DOC file.Open Amendment to a previously filed SC 13G in PDF file.Open Amendment to a previously filed SC 13G in XLS file.
10-QQuarterly report which provides a continuing view of a company's financial positionMay 15, 2000Open Quarterly report which provides a continuing view of a company's financial position in HTML.Open Quarterly report which provides a continuing view of a company's financial position in DOC file.Open Quarterly report which provides a continuing view of a company's financial position in PDF file.Open Quarterly report which provides a continuing view of a company's financial position in XLS file.
8-KReport of unscheduled material events or corporate eventMay 4, 2000Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
DEF 14AOfficial notification to shareholders of matters to be brought to a vote ("Proxy")Apr 27, 2000Open Official notification to shareholders of matters to be brought to a vote ("Proxy") in HTML.Open Official notification to shareholders of matters to be brought to a vote ("Proxy") in DOC file.Open Official notification to shareholders of matters to be brought to a vote ("Proxy") in PDF file.Open Official notification to shareholders of matters to be brought to a vote ("Proxy") in XLS file.
1-25      26-41
Subscribe to Investor Email Alerts
* Required Fields
Scroll to Top