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4

Statement of changes in beneficial ownership of securities

 0000904454-20-000333.pdf 0000904454-20-000333.rtf 0000904454-20-000333.xls View HTML
4

Statement of changes in beneficial ownership of securities

 0000904454-20-000331.pdf 0000904454-20-000331.rtf 0000904454-20-000331.xls View HTML
8-K

Report of unscheduled material events or corporate event

 0001193125-20-114153.pdf 0001193125-20-114153.rtf 0001193125-20-114153.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
DEFA14A

Additional proxy soliciting materials - definitive

 0001193125-20-100703.pdf 0001193125-20-100703.rtf 0001193125-20-100703.xls View HTML
DEF 14A

Official notification to shareholders of matters to be brought to a vote ("Proxy")

 0001193125-20-087828.pdf 0001193125-20-087828.rtf 0001193125-20-087828.xls View HTML
DEFA14A

Additional proxy soliciting materials - definitive

 0001193125-20-087829.pdf 0001193125-20-087829.rtf 0001193125-20-087829.xls View HTML
10-K

Annual report which provides a comprehensive overview of the company for the past year

 0001193125-20-058676.pdf 0001193125-20-058676.rtf 0001193125-20-058676.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
SC 13G/A

An amendment to the SC 13G filing

 0001193125-20-037025.pdf 0001193125-20-037025.rtf 0001193125-20-037025.xls View HTML
SC 13G/A

An amendment to the SC 13G filing

 0001556785-20-000021.pdf 0001556785-20-000021.rtf 0001556785-20-000021.xls View HTML
4

Statement of changes in beneficial ownership of securities

 0000904454-20-000216.pdf 0000904454-20-000216.rtf View HTML
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