Free Trial

Quantum (QMCO) SEC Filings & 10K Form

Quantum logo
$10.32 -0.08 (-0.77%)
Closing price 04/17/2025 04:00 PM Eastern
Extended Trading
$10.42 +0.10 (+0.97%)
As of 04/17/2025 06:14 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Recent Quantum SEC Filings

DateFilerForm TypeView
04/17/2025
3:05 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/17/2025
3:05 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SCHEDULE 13D/A
04/16/2025
8:35 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/04/2025
3:37 PM
Nash Laura A. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/03/2025
4:14 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/31/2025
5:45 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SCHEDULE 13D/A
03/27/2025
3:00 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form DEF 14A
03/21/2025
7:11 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SCHEDULE 13D/A
03/20/2025
4:25 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/17/2025
4:26 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form PRE 14A
02/21/2025
6:53 PM
Blue Torch Capital LP (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SCHEDULE 13D/A
02/12/2025
4:06 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
02/11/2025
11:15 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form EFFECT
02/06/2025
4:14 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form S-1/A
01/31/2025
8:56 AM
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
VANGUARD GROUP INC (Filed by)
Form SCHEDULE 13G/A
01/27/2025
4:21 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/27/2025
4:25 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form S-1
Registration statement under Securities Act of 1933  
01/17/2025
8:37 PM
Lerner James J (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
8:22 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Spanjaard Henk Jan (Reporting)
Form 4/A
01/17/2025
8:24 PM
Lerner James J (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
01/17/2025
8:26 PM
Nash Laura A. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
01/17/2025
8:29 PM
Cabrera Brian E (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
8:31 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
8:35 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Spanjaard Henk Jan (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
8:17 PM
Cabrera Brian E (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
01/17/2025
8:18 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
01/07/2025
5:12 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SCHEDULE 13D/A
01/07/2025
5:14 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
12/05/2024
3:15 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
12/04/2024
11:24 AM
Neuberger Berman Group LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SC 13G/A
11/19/2024
6:46 PM
Nash Laura A. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:46 PM
Jaworksi Don (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:46 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Spanjaard Henk Jan (Reporting)
Form 4/A
11/19/2024
6:46 PM
Lerner James J (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:46 PM
Cabrera Brian E (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:47 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:47 PM
Meyrath Hugues (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4/A
11/19/2024
6:47 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
White Yue Zhou (Reporting)
Form 4/A
11/05/2024
4:44 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Tracy John R. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:16 PM
Nash Laura A. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:16 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Tracy John R. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
Musk’s AI Masterplan – Our #1 AI Stock to Buy Now (Ad)

Did Elon Musk just set the stage for the next AI stock explosion? One 30-year Wall Street veteran thinks so. Musk has been quietly creating one of the most ambitious AI ventures in history.

For all the details - including the name and ticker of our #1 AI stock to buy right now - click here
10/21/2024
4:16 PM
Meyrath Hugues (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:16 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
White Yue Zhou (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:16 PM
Jaworksi Don (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:17 PM
Cabrera Brian E (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:17 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Spanjaard Henk Jan (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:17 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/21/2024
4:17 PM
Lerner James J (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/10/2024
3:18 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/13/2024
8:53 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
08/20/2024
6:05 AM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/15/2024
6:45 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Filed by)
QUANTUM CORP /DE/ (Subject)
Quantum (Subject)
Form SC 13D/A
08/15/2024
6:23 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/14/2024
4:26 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/14/2024
8:19 AM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/02/2024
3:34 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form DEFA14A
07/15/2024
7:57 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/12/2024
3:17 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/08/2024
3:18 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Tracy John R. (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
06/28/2024
3:36 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
06/17/2024
4:11 PM
Arden Todd (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
06/17/2024
3:38 PM
QUANTUM CORP /DE/ (Filer)
Quantum (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/29/2024
8:36 PM
PACIFIC INVESTMENT MANAGEMENT CO LLC (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2024
4:26 PM
Cabrera Brian E (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2024
4:26 PM
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Spanjaard Henk Jan (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2024
4:27 PM
Lerner James J (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2024
4:28 PM
Gianella Kenneth P. (Reporting)
QUANTUM CORP /DE/ (Issuer)
Quantum (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)


Related Companies and Tools


This page (NASDAQ:QMCO) was last updated on 4/18/2025 by MarketBeat.com Staff
From Our Partners