Free Trial

Hemispherx BioPharma (HEB) SEC Filings & 10K Form

Hemispherx BioPharma logo
$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  
Elon’s Secret Social Security Bombshell (Ad)

To All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social Security? What we just discovered in Washington will stun even the most seasoned insiders.

A major government announcement coming as soon as tomorrow.
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)  
Trump set to Boost Social Security Checks by 400%? (Ad)

If you're collecting or planning to collect social security... You should see this presentation about President Trump's Executive Order #14196. Legendary investor Louis Navellier believes it could soon not only save Social Security from collapse... But BOOST benefits for millions of retirees by up to 400%. No wonder the financial times called this new initiative...

Click here to see the details because the stakes couldn't be any higher.
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
08/14/2024
6:37 AM
Hemispherx BioPharma (Subject)
AIM ImmunoTech Inc. (Subject)
Deutsch Todd (Filed by)
Form SC 13D/A
08/12/2024
8:39 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Equels Thomas K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/12/2024
8:41 PM
Hemispherx BioPharma (Issuer)
AIM ImmunoTech Inc. (Issuer)
Rodino Peter W III (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)


Related Companies and Tools


This page (NYSEAMERICAN:HEB) was last updated on 8/5/2025 by MarketBeat.com Staff
From Our Partners