Filing date Description Form View

Statement of changes in beneficial ownership of securities

 4
0000814453-20-000021.pdf
0000814453-20-000021.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000022.pdf
0000814453-20-000022.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000026.pdf
0000814453-20-000026.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000027.pdf
0000814453-20-000027.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000025.pdf
0000814453-20-000025.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000017.pdf
0000814453-20-000017.rtf
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Amendment to a previously filed 4

 4/A
0000814453-20-000024.pdf
0000814453-20-000024.rtf
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A statement of beneficial ownership of common stock by certain persons

 SC 13G
0001564590-20-002025.pdf
0001564590-20-002025.rtf
0001564590-20-002025.xls
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Report of unscheduled material events or corporate event

 8-K
0001193125-20-010053.pdf
0001193125-20-010053.rtf
0001193125-20-010053.xls
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML

Statement of changes in beneficial ownership of securities

 4
0000814453-19-000124.pdf
0000814453-19-000124.rtf
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