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Aspen Technology (AZPN) SEC Filings & 10K Form

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$264.33 0.00 (0.00%)
As of 03/12/2025

Recent Aspen Technology SEC Filings

DateFilerForm TypeView
05/15/2025
4:21 PM
Aspen Technology (Subject)
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC (Filed by)
Form SCHEDULE 13G/A
03/24/2025
7:30 AM
Aspen Technology (Filer)
Form 15-12G
03/13/2025
3:31 PM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2025
3:20 PM
Antkowiak Patrick M. (Reporting)
Aspen Technology (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2025
3:21 PM
Aspen Technology (Issuer)
BOGAN THOMAS F (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2025
3:22 PM
Aspen Technology (Issuer)
Golz Karen (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2025
3:23 PM
Aspen Technology (Issuer)
HENSHALL DAVID J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/12/2025
9:54 AM
Aspen Technology (Subject)
Nasdaq Stock Market LLC (Filed by)
Form 25-NSE
03/12/2025
9:38 AM
Aspen Technology (Subject)
Form SC 13E3/A
03/12/2025
8:56 AM
Aspen Technology (Subject)
Form SC 14D9/A
03/12/2025
8:31 AM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/12/2025
8:03 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
03/12/2025
8:07 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SCHEDULE 13D/A
03/10/2025
7:42 AM
Aspen Technology (Subject)
Form SC 13E3/A
03/10/2025
6:55 AM
Aspen Technology (Subject)
Form SC 14D9/A
03/10/2025
6:33 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
03/10/2025
6:22 AM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/05/2025
9:58 AM
Aspen Technology (Filer)
Form CT ORDER
02/28/2025
8:12 AM
Aspen Technology (Subject)
Form SC 13E3/A
02/28/2025
7:37 AM
Aspen Technology (Subject)
Form SC 14D9/A
02/28/2025
7:12 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
02/28/2025
5:15 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
02/24/2025
6:23 AM
Aspen Technology (Subject)
Form SC 13E3/A
02/24/2025
6:03 AM
Aspen Technology (Subject)
Form SC 14D9/A
02/24/2025
5:31 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
02/14/2025
3:16 PM
Aspen Technology (Issuer)
Pietri Antonio J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/10/2025
5:18 PM
Aspen Technology (Issuer)
Cooper Christopher A (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
02/10/2025
3:10 PM
Aspen Technology (Issuer)
Vinci Sharon (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
02/10/2025
8:42 AM
Aspen Technology (Subject)
Form SC 13E3
02/10/2025
6:32 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T/A
02/10/2025
6:19 AM
Aspen Technology (Subject)
Form SC 14D9
02/10/2025
5:31 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-T
02/07/2025
1:21 PM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-C
02/04/2025
3:38 PM
Aspen Technology (Subject)
Form SC14D9C
02/04/2025
3:07 PM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/29/2025
4:15 PM
Aspen Technology (Subject)
Form SC14D9C
01/27/2025
4:24 PM
Aspen Technology (Subject)
Form SC14D9C
01/27/2025
7:13 AM
Aspen Technology (Subject)
Form SC14D9C
01/27/2025
6:11 AM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/27/2025
6:04 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-C
01/27/2025
6:09 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SCHEDULE 13D/A
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01/06/2025
8:33 AM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2025
8:34 AM
Aspen Technology (Issuer)
Pietri Antonio J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2025
8:35 AM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2024
7:04 AM
Aspen Technology (Subject)
Form SC14D9C
11/05/2024
3:57 PM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-C
11/05/2024
6:01 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC 13D/A
11/05/2024
6:36 AM
Aspen Technology (Subject)
EMERSON ELECTRIC CO (Filed by)
Form SC TO-C
10/25/2024
3:17 PM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/24/2024
3:28 PM
Aspen Technology (Filer)
Form ARS
10/24/2024
3:25 PM
Aspen Technology (Filer)
Form DEF 14A
10/24/2024
3:26 PM
Aspen Technology (Filer)
Form DEFA14A
10/22/2024
5:06 PM
Aspen Technology (Subject)
BlackRock, Inc. (Filed by)
Form SC 13G/A
10/02/2024
3:16 PM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/02/2024
3:17 PM
Aspen Technology (Issuer)
Pietri Antonio J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/02/2024
3:18 PM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/23/2024
3:27 PM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/19/2024
2:38 PM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/18/2024
2:48 PM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/17/2024
4:10 PM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/11/2024
4:20 PM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4/A
09/05/2024
5:28 PM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/05/2024
3:37 PM
Aspen Technology (Issuer)
Pietri Antonio J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/05/2024
3:38 PM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/04/2024
11:07 AM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/03/2024
12:29 PM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/03/2024
9:59 AM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/30/2024
3:24 PM
Aspen Technology (Issuer)
Whelan, Jr. Robert M. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/28/2024
3:52 PM
Aspen Technology (Subject)
Whelan, Jr. Robert M. (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/21/2024
11:53 AM
Aspen Technology (Subject)
Mouritsen Mark Edgar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/13/2024
3:32 PM
Aspen Technology (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
08/07/2024
10:40 AM
Aspen Technology (Subject)
Smith Jill D. (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
07/25/2024
3:20 PM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:24 PM
Antkowiak Patrick M. (Reporting)
Aspen Technology (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:25 PM
Aspen Technology (Issuer)
BOGAN THOMAS F (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:26 PM
Aspen Technology (Issuer)
Golz Karen (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:27 PM
Aspen Technology (Issuer)
HENSHALL DAVID J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:27 PM
Aspen Technology (Issuer)
Shenkman Arlen (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/03/2024
3:29 PM
Aspen Technology (Issuer)
Whelan, Jr. Robert M. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/02/2024
3:30 PM
Aspen Technology (Issuer)
Stagno Christopher (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/27/2024
3:28 PM
Aspen Technology (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/20/2024
3:40 PM
Aspen Technology (Issuer)
Baker David John (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2024
3:33 PM
Aspen Technology (Issuer)
Pietri Antonio J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/23/2024
12:13 PM
Aspen Technology (Subject)
Smith Jill D. (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/21/2024
9:25 AM
Aspen Technology (Subject)
Whelan, Jr. Robert M. (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:AZPN) was last updated on 5/21/2025 by MarketBeat.com Staff
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