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Hemispherx BioPharma (HEB) SEC Filings & 10K Form

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$6.70 -1.68 (-20.05%)
As of 06/13/2025

Recent Hemispherx BioPharma SEC Filings

DateFilerForm TypeView
07/30/2025
5:30 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 424B5
07/28/2025
11:15 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form EFFECT
07/28/2025
8:20 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/22/2025
12:21 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-1/A
07/15/2025
2:05 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-1/A
07/15/2025
2:38 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
07/06/2025
11:15 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form EFFECT
06/27/2025
3:46 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-3/A
06/20/2025
3:30 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/16/2025
9:53 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/13/2025
10:04 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
3:50 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/23/2025
3:35 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
KELLNER TED D (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2025
3:35 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2025
3:35 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
MITCHELL WILLIAM M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/07/2025
2:42 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/04/2025
4:19 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Rodino Peter W III (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/04/2025
9:30 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/02/2025
3:45 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEF 14A
04/01/2025
4:15 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-3
Registration statement under Securities Act of 1933  
03/27/2025
6:17 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/18/2025
4:11 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
MITCHELL WILLIAM M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/18/2025
4:10 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
CHEMEROW DAVID I. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/18/2025
4:10 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
BRYAN NANCY (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2025
8:36 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
9:00 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/04/2025
1:14 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
BRYAN NANCY (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/04/2025
12:14 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/28/2025
3:45 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form PRE 14A
02/28/2025
7:00 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/26/2025
7:45 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/11/2025
7:50 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/11/2025
7:35 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/07/2025
8:24 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-1/A
02/07/2025
7:55 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/05/2025
7:30 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/03/2025
3:05 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
BRYAN NANCY (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/03/2025
3:05 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
MITCHELL WILLIAM M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/03/2025
8:09 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-1/A
01/23/2025
4:26 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form S-1
Registration statement under Securities Act of 1933  
01/21/2025
3:32 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
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12/23/2024
3:30 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/23/2024
2:23 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
KELLNER TED D (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
12/23/2024
10:11 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Deutsch Todd (Filed by)
Form SCHEDULE 13D/A
12/20/2024
4:00 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/20/2024
3:30 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
MITCHELL WILLIAM M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/19/2024
12:38 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/17/2024
3:41 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/16/2024
3:59 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/16/2024
3:59 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/13/2024
3:43 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/12/2024
3:49 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/12/2024
3:09 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/11/2024
7:52 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/10/2024
3:39 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/10/2024
8:01 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/10/2024
8:06 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
12/09/2024
4:25 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/06/2024
3:50 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/05/2024
3:37 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/03/2024
5:29 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
BRYAN NANCY (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/03/2024
5:33 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
APPELROUTH STEWART (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/03/2024
5:36 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
MITCHELL WILLIAM M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/02/2024
3:55 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
12/02/2024
3:05 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
11/27/2024
4:26 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
11/27/2024
3:15 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/27/2024
3:05 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
11/26/2024
3:05 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
11/25/2024
4:16 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
11/22/2024
4:26 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
11/21/2024
11:02 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
APPELROUTH STEWART (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/21/2024
11:04 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2024
11:46 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/15/2024
3:59 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
11/14/2024
3:25 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DFAN14A
11/14/2024
2:21 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
ARMISTICE CAPITAL, LLC (Filed by)
Form SC 13G
11/06/2024
8:02 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form DEFC14A
11/04/2024
3:59 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form DEFA14A
11/04/2024
6:00 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Form DEFC14A
10/30/2024
3:50 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form PRER14A
10/30/2024
11:53 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form PRRN14A
10/18/2024
3:34 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
KELLNER TED D (Filed by)
Form PREC14A
10/15/2024
3:33 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Form PREC14A
10/01/2024
2:55 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/01/2024
12:12 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 424B5
09/30/2024
7:22 AM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 424B5
09/17/2024
11:05 AM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/16/2024
2:45 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/12/2024
4:15 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/12/2024
3:45 PM
Hemispherx BioPharma (Filer)
AIM ImmunoTech Inc. (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
Why More Investors Are Using Family Trusts to Protect Their Wealth (Ad)

For many investors, a family trust can be an essential tool for protecting assets, avoiding probate, and ensuring wealth is passed on according to your wishes. Trusts may also provide shielding from creditors and lawsuits while offering potential tax advantages—especially with estate tax thresholds set to decrease in 2026. If you’re considering whether a family trust is right for you, speaking with a fiduciary financial advisor can help you decide the best path forward. We’ve created a free tool that matches you with vetted advisors in your area—each legally bound to act in your best interest.tc pixel

Click here to get your free advisor matches and start planning your legacy today.
09/11/2024
4:40 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Deutsch Todd (Filed by)
Form SC 13D/A
09/03/2024
8:43 PM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Deutsch Todd (Filed by)
Form SC 13D/A
(Data available from 1/1/2016 forward)


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This page (NYSEAMERICAN:HEB) was last updated on 8/28/2025 by MarketBeat.com Staff
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