ASPENTECH Corp SEC filing history

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SEC filing history

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PRIMARY DOCUMENT

Filing date: 21 Feb 2012
Reporting date: 17 Feb 2012
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PRIMARY DOCUMENT

Filing date: 21 Feb 2012
Reporting date: 16 Feb 2012
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PRIMARY DOCUMENT

Filing date: 16 Feb 2012
Reporting date: 14 Feb 2012
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PRIMARY DOCUMENT

Filing date: 15 Feb 2012
Reporting date: 13 Feb 2012
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PRIMARY DOCUMENT

Filing date: 15 Feb 2012
Reporting date: 13 Feb 2012
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SC 13G/A File 005-44607

ASPEN TECHNOLOGY, INC.

Filing date: 14 Feb 2012
Reporting date: Not listed
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SC 13G/A File 005-44607

SC 13G/A filing

Filing date: 14 Feb 2012
Reporting date: Not listed
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SC 13G File 005-44607

SC 13G filing

Filing date: 14 Feb 2012
Reporting date: Not listed
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SC 13G/A File 005-44607

SCHEDULE 13G AMENDMENT NO. 1

Filing date: 14 Feb 2012
Reporting date: Not listed
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PRIMARY DOCUMENT

Filing date: 13 Feb 2012
Reporting date: 09 Feb 2012
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SC 13G/A File 005-44607

SC 13G/A filing

Filing date: 13 Feb 2012
Reporting date: Not listed
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PRIMARY DOCUMENT

Filing date: 08 Feb 2012
Reporting date: 06 Feb 2012
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PRIMARY DOCUMENT

Filing date: 07 Feb 2012
Reporting date: 03 Feb 2012
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PRIMARY DOCUMENT

Filing date: 07 Feb 2012
Reporting date: 03 Feb 2012
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PRIMARY DOCUMENT

Filing date: 07 Feb 2012
Reporting date: 03 Feb 2012
SEC evidence: Open document Open filing
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8-K File 001-34630

8-K

Filing date: 31 Jan 2012
Reporting date: 31 Jan 2012
SEC evidence: Open document Open filing
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10-Q File 001-34630

ASPEN TECHNOLOGY INC 10-Q 12-31-2011

Filing date: 31 Jan 2012
Reporting date: 31 Dec 2011
SEC evidence: Open document Open filing Open XBRL
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UPLOAD

UPLOAD filing

Filing date: 13 Jan 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
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CORRESP

CORRESP filing

Filing date: 05 Jan 2012
Reporting date: Not listed
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PRIMARY DOCUMENT

Filing date: 04 Jan 2012
Reporting date: 30 Dec 2011
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 04 Jan 2012
Reporting date: 30 Dec 2011
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 04 Jan 2012
Reporting date: 30 Dec 2011
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 04 Jan 2012
Reporting date: 30 Dec 2011
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 03 Jan 2012
Reporting date: 29 Dec 2011
SEC evidence: Open document Open filing
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UPLOAD

UPLOAD filing

Filing date: 20 Dec 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
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