SEC EDGAR filings, ownership reports, and insider transactions for ENZON PHARMACEUTICALS, INC..
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 23 Dec 2025 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 23 Dec 2025 | 23 Dec 2025 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 12 Nov 2025 | 30 Sep 2025 | 000-12957 |
| SCHEDULE 13D/A | Open Document | Open Filing | 24 Oct 2025 | 005-35587 | ||
| 425 | Open Document | Open Filing | 425 | 24 Oct 2025 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 24 Oct 2025 | 24 Oct 2025 | 000-12957 |
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 30 Sep 2025 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 30 Sep 2025 | 30 Sep 2025 | 000-12957 |
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 14 Aug 2025 | 000-12957 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 14 Aug 2025 | 30 Jun 2025 | 000-12957 |
| SCHEDULE 13D/A | Open Document | Open Filing | 23 Jun 2025 | 005-35587 | ||
| 425 | Open Document | Data | Open Filing | 425 | 23 Jun 2025 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 23 Jun 2025 | 20 Jun 2025 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2025 | 31 Mar 2025 | 000-12957 |
| 10-K/A | Open Document | Data | Open Filing | 10-K/A | 28 Apr 2025 | 31 Dec 2024 | 000-12957 |
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 01 Apr 2025 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 01 Apr 2025 | 31 Mar 2025 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 21 Feb 2025 | 31 Dec 2024 | 000-12957 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Jan 2025 | 07 Jan 2025 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 10 Jan 2025 | 07 Jan 2025 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 27 Dec 2024 | 18 Dec 2024 | 000-12957 |
| SCHEDULE 13D/A | Open Document | Open Filing | 19 Dec 2024 | 005-35587 | ||
| 10-Q | Open Document | Data | Open Filing | 10-Q | 05 Nov 2024 | 30 Sep 2024 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 01 Oct 2024 | 26 Sep 2024 | 000-12957 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 19 Aug 2024 | 005-35587 | |
| ARS | Open Document | Open Filing | ARS | 08 Aug 2024 | 31 Dec 2023 | 000-12957 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 08 Aug 2024 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 08 Aug 2024 | 26 Sep 2024 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Aug 2024 | 30 Jun 2024 | 000-12957 |
| PRE 14A | Open Document | Open Filing | PRE 14A | 29 Jul 2024 | 26 Sep 2024 | 000-12957 |
| 8-K/A | Open Document | Data | Open Filing | FORM 8-K/A | 11 Jul 2024 | 02 Jul 2024 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 02 Jul 2024 | 02 Jul 2024 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 14 Jun 2024 | 10 Jun 2024 | 000-12957 |
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 22 May 2024 | 000-12957 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 22 May 2024 | 16 May 2024 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 10 May 2024 | 31 Mar 2024 | 000-12957 |
| 10-K/A | Open Document | Data | Open Filing | FORM 10-K/A | 26 Apr 2024 | 31 Dec 2023 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 20 Mar 2024 | 31 Dec 2023 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 05 Jan 2024 | 31 Dec 2023 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Nov 2023 | 30 Sep 2023 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Aug 2023 | 30 Jun 2023 | 000-12957 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jun 2023 | 14 Jun 2023 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 14 Jun 2023 | 08 Jun 2023 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 05 May 2023 | 31 Mar 2023 | 000-12957 |
| ARS | Open Document | Open Filing | ARS | 20 Apr 2023 | 31 Dec 2022 | 000-12957 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 20 Apr 2023 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 20 Apr 2023 | 08 Jun 2023 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 16 Feb 2023 | 31 Dec 2022 | 000-12957 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 06 Jan 2023 | 31 Dec 2022 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Nov 2022 | 30 Sep 2022 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 04 Aug 2022 | 30 Jun 2022 | 000-12957 |
| 3 | Open Document | Open Filing | FORM 3 | 21 Jun 2022 | 09 Jun 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 15 Jun 2022 | 09 Jun 2022 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 26 Apr 2022 | 31 Mar 2022 | 000-12957 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 22 Apr 2022 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 22 Apr 2022 | 09 Jun 2022 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 25 Feb 2022 | 31 Dec 2021 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 05 Nov 2021 | 30 Sep 2021 | 000-12957 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Aug 2021 | 13 Aug 2021 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 05 Aug 2021 | 30 Jun 2021 | 000-12957 |
| 8-A12G/A | Open Document | Open Filing | 8-A12G/A | 08 Jun 2021 | 000-12957 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Jun 2021 | 02 Jun 2021 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 04 May 2021 | 31 Mar 2021 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 14 Apr 2021 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 14 Apr 2021 | 02 Jun 2021 | 001-36435 |
| PRE 14A | Open Document | Open Filing | PRE 14A | 02 Apr 2021 | 02 Jun 2021 | 001-36435 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 23 Feb 2021 | 31 Dec 2020 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 04 Jan 2021 | 30 Dec 2020 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 21 Dec 2020 | 18 Dec 2020 | 001-36435 |
| 424B3 | Open Document | Open Filing | 424B3 | 24 Nov 2020 | 333-250031 | |
| EFFECT | Open Document | Open Filing | 23 Nov 2020 | 333-250031 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Nov 2020 | 16 Nov 2020 | |
| CORRESP | Open Document | Open Filing | 18 Nov 2020 | |||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Nov 2020 | 13 Nov 2020 | |
| UPLOAD | Open Document | Open Filing | 17 Nov 2020 | |||
| S-1 | Open Document | Open Filing | FORM S-1 | 12 Nov 2020 | 333-250031 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 09 Nov 2020 | 30 Sep 2020 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 03 Nov 2020 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 03 Nov 2020 | 18 Dec 2020 | 001-36435 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Oct 2020 | 09 Oct 2020 | |
| SC 13D/A | Open Document | Open Filing | 14 Oct 2020 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Oct 2020 | 09 Oct 2020 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Sep 2020 | 21 Sep 2020 | 001-36435 |
| 424B3 | Open Document | Open Filing | 424B3 | 23 Sep 2020 | 333-248528 | |
| EFFECT | Open Document | Open Filing | 21 Sep 2020 | 333-248528 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO THE SCHEDULE 13D | 17 Sep 2020 | 005-35587 | |
| CORRESP | Open Document | Open Filing | 17 Sep 2020 | |||
| 8-K | Open Document | Open Filing | FORM 8-K | 15 Sep 2020 | 15 Sep 2020 | 001-36435 |
| S-1/A | Open Document | Open Filing | S-1/A | 15 Sep 2020 | 333-248528 | |
| UPLOAD | Open Document | Open Filing | 08 Sep 2020 | |||
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Sep 2020 | 02 Sep 2020 | 001-36435 |
| SC 13D/A | Open Document | Open Filing | 01 Sep 2020 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 01 Sep 2020 | 01 Sep 2020 | 001-36435 |
| S-1 | Open Document | Open Filing | FORM S-1 | 01 Sep 2020 | 333-248528 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 31 Aug 2020 | 31 Aug 2020 | 001-36435 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Aug 2020 | 24 Aug 2020 | |
| 3 | Open Document | Open Filing | FORM 3 | 18 Aug 2020 | 04 Aug 2020 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Aug 2020 | 14 Aug 2020 | 001-36435 |
| 8-A12G | Open Document | Open Filing | 8-A12G | 14 Aug 2020 | 000-12957 | |
| 3 | Open Document | Open Filing | FORM 3 | 14 Aug 2020 | 04 Aug 2020 | |
| SC 13D/A | Open Document | Open Filing | 07 Aug 2020 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Aug 2020 | 04 Aug 2020 | 001-36435 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Aug 2020 | 05 Aug 2020 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Aug 2020 | 03 Aug 2020 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO THE SCHEDULE 13D | 05 Aug 2020 | 005-35587 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 29 Jul 2020 | 30 Jun 2020 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 30 Apr 2020 | 31 Mar 2020 | 001-36435 |
| 10-K/A | Open Document | Open Filing | FORM 10-K/A | 24 Apr 2020 | 31 Dec 2019 | 001-36435 |
| SC 13D | Open Document | Open Filing | THE SCHEDULE 13D | 16 Apr 2020 | 005-35587 | |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2020 | 13 Mar 2020 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2020 | 18 Mar 2020 | |
| 4 | Open Document | Open Filing | 27 Mar 2020 | 13 Mar 2020 | ||
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 3 TO THE SCHEDULE 13G | 27 Mar 2020 | 005-35587 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 19 Feb 2020 | 31 Dec 2019 | 001-36435 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 22 Jan 2020 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 16 Jan 2020 | 005-35587 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 06 Nov 2019 | 30 Sep 2019 | 001-36435 |
| 8-K | Open Document | Open Filing | 8-K | 22 Aug 2019 | 22 Aug 2019 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 07 Aug 2019 | 30 Jun 2019 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 12 Jul 2019 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 12 Jul 2019 | 22 Aug 2019 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 08 May 2019 | 31 Mar 2019 | 001-36435 |
| 10-K/A | Open Document | Open Filing | 10-K/A | 25 Apr 2019 | 31 Dec 2018 | 001-36435 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 21 Feb 2019 | 31 Dec 2018 | 001-36435 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Feb 2019 | 11 Feb 2019 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 2 TO THE SCHEDULE 13G | 14 Feb 2019 | 005-35587 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 01 Feb 2019 | 30 Jan 2019 | 001-36435 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 31 Jan 2019 | 005-35587 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jan 2019 | 13 Apr 2018 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jan 2019 | 13 Apr 2018 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 03 Jan 2019 | 005-35587 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Nov 2018 | 30 Sep 2018 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 13 Aug 2018 | 09 Aug 2018 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 Aug 2018 | 30 Jun 2018 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 29 Jun 2018 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | 29 Jun 2018 | 09 Aug 2018 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 May 2018 | 31 Mar 2018 | 001-36435 |
| 10-K/A | Open Document | Open Filing | 10-K/A | 25 Apr 2018 | 31 Dec 2017 | 001-36435 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Apr 2018 | 04 Apr 2018 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | 13 Apr 2018 | 005-35587 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 21 Mar 2018 | 31 Dec 2017 | 001-36435 |
| 15-12G | Open Document | Open Filing | 15-12G | 13 Feb 2018 | 000-12957 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 09 Feb 2018 | 005-35587 | |
| SC 13G | Open Document | Open Filing | SC 13G | 22 Jan 2018 | 005-35587 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 09 Nov 2017 | 30 Sep 2017 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 10 Aug 2017 | 10 Aug 2017 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 Aug 2017 | 30 Jun 2017 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 30 Jun 2017 | 26 Jun 2017 | 001-36435 |
| SC 13G | Open Document | Open Filing | THE SCHEDULE 13G | 24 May 2017 | 005-35587 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | 12 May 2017 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 12 May 2017 | 28 Jun 2017 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 11 May 2017 | 31 Mar 2017 | 001-36435 |
| 10-K/A | Open Document | Open Filing | FORM 10-K/A | 28 Apr 2017 | 31 Dec 2016 | 001-36435 |
| 10-K | Open Document | Data | Open Filing | 10-K | 24 Mar 2017 | 31 Dec 2016 | 001-36435 |
| SC 13G/A | Open Document | Open Filing | 13G/A | 14 Feb 2017 | 005-35587 | |
| SC 13D/A | Open Document | Open Filing | 08 Dec 2016 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Dec 2016 | 08 Dec 2016 | 001-36435 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Nov 2016 | 28 Nov 2016 | |
| SC 13D/A | Open Document | Open Filing | 29 Nov 2016 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Nov 2016 | 14 Nov 2016 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 Nov 2016 | 30 Sep 2016 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 26 Oct 2016 | 25 Oct 2016 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 10 Aug 2016 | 30 Jun 2016 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Aug 2016 | 09 Aug 2016 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 05 Jul 2016 | 29 Jun 2016 | 001-36435 |
| 25-NSE | Open Document | Data | Open Filing | 10 Jun 2016 | 000-12957 | ||
| SC 13G/A | Open Document | Open Filing | 09 Jun 2016 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 16 May 2016 | 11 May 2016 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 13 May 2016 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 13 May 2016 | 29 Jun 2016 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2016 | 31 Mar 2016 | 001-36435 |
| 10-K/A | Open Document | Open Filing | FORM 10-K/A | 28 Apr 2016 | 31 Dec 2015 | 001-36435 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Apr 2016 | 31 Mar 2016 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 21 Mar 2016 | 31 Dec 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 21 Mar 2016 | 18 Mar 2016 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Feb 2016 | 22 Feb 2016 | 001-36435 |
| SC 13G/A | Open Document | Open Filing | 12 Feb 2016 | 005-35587 | ||
| SC 13G | Open Document | Open Filing | ENZON PHARMACEUTICALS, INC. | 12 Feb 2016 | 005-35587 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Feb 2016 | 02 Feb 2016 | 001-36435 |
| DEFA14A | Open Document | Open Filing | FORM 8-K | 09 Feb 2016 | 001-36435 | |
| SC 13G/A | Open Document | Open Filing | 26 Jan 2016 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Dec 2015 | 04 Dec 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | 8-K | 03 Dec 2015 | 02 Dec 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | CURRENT REPORT | 12 Nov 2015 | 11 Nov 2015 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 06 Nov 2015 | 30 Sep 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | 8-K | 15 Sep 2015 | 11 Sep 2015 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Aug 2015 | 30 Jun 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Jul 2015 | 06 Jul 2015 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Jul 2015 | 30 Jun 2015 | 001-36435 |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 19 May 2015 | 31 Dec 2014 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 15 May 2015 | 001-36435 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 15 May 2015 | 30 Jun 2015 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 13 May 2015 | 31 Mar 2015 | 001-36435 |
| PRE 14A | Open Document | Open Filing | FORM PRE 14A | 28 Apr 2015 | 28 Apr 2015 | 001-36435 |
| 10-K/A | Open Document | Open Filing | FORM 10-K/A | 24 Apr 2015 | 31 Dec 2014 | 001-36435 |
| 10-K | Open Document | Data | Open Filing | 10-K | 05 Mar 2015 | 31 Dec 2014 | 001-36435 |
| SC 13G/A | Open Document | Open Filing | 06 Feb 2015 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 22 Jan 2015 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 8-K | 10 Dec 2014 | 08 Dec 2014 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 05 Dec 2014 | 04 Dec 2014 | 001-36435 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Nov 2014 | 28 Nov 2012 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 06 Nov 2014 | 30 Sep 2014 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Aug 2014 | 30 Jun 2014 | 001-36435 |
| 8-K | Open Document | Open Filing | CURRENT REPORT | 16 Jul 2014 | 25 Jun 2014 | 001-36435 |
| 8-K | Open Document | Open Filing | FORM 8-K | 12 Jun 2014 | 10 Jun 2014 | 001-36435 |
| 8-K | Open Document | Open Filing | 8-K | 30 May 2014 | 28 May 2014 | 001-36435 |
| 8-K | Open Document | Open Filing | 8-K | 19 May 2014 | 19 May 2014 | 001-36435 |
| DEFA14A | Open Document | Open Filing | 8-K | 19 May 2014 | 001-36435 | |
| 8-K | Open Document | Open Filing | 8-K | 09 May 2014 | 08 May 2014 | 001-36435 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2014 | 31 Mar 2014 | 001-36435 |
| 8-A12B | Open Document | Open Filing | 8-A12B | 01 May 2014 | 001-36435 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 01 May 2014 | 30 Apr 2014 | 000-12957 |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 18 Apr 2014 | 31 Dec 2013 | 001-36435 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 16 Apr 2014 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 16 Apr 2014 | 28 May 2014 | 000-12957 |
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND6 | 09 Apr 2014 | 005-35587 | |
| 8-K | Open Document | Open Filing | 8-K | 25 Mar 2014 | 19 Mar 2014 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 14 Mar 2014 | 31 Dec 2013 | 000-12957 |
| SC 13G | Open Document | Open Filing | SC 13G | 13 Mar 2014 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | 12 Feb 2014 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 10 Jan 2014 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND5.PDML | 09 Jan 2014 | 005-35587 | |
| 8-K | Open Document | Open Filing | CURRENT REPORT | 16 Dec 2013 | 13 Dec 2013 | 000-12957 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Dec 2013 | 13 Dec 2013 | |
| 8-K | Open Document | Open Filing | 8-K | 05 Dec 2013 | 05 Dec 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 21 Nov 2013 | 13 Nov 2013 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 12 Nov 2013 | 30 Sep 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 22 Oct 2013 | 21 Oct 2013 | 000-12957 |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 15 Oct 2013 | 31 Dec 2012 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 15 Oct 2013 | 14 Oct 2013 | 000-12957 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 11 Oct 2013 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 11 Oct 2013 | 20 Nov 2013 | 000-12957 |
| 3 | Open Document | Open Filing | FORM 3 | 09 Oct 2013 | 07 Oct 2013 | |
| SC 13D/A | Open Document | Open Filing | 09 Oct 2013 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 8-K | 09 Oct 2013 | 07 Oct 2013 | 000-12957 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Oct 2013 | 25 Sep 2013 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Oct 2013 | 25 Sep 2013 | |
| 8-K | Open Document | Open Filing | 8-K | 01 Oct 2013 | 25 Sep 2013 | 000-12957 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Sep 2013 | 17 Sep 2013 | |
| 8-K | Open Document | Open Filing | 8-K | 12 Aug 2013 | 07 Aug 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 09 Aug 2013 | 06 Aug 2013 | 000-12957 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 06 Aug 2013 | 30 Jun 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 25 Jul 2013 | 22 Jul 2013 | 000-12957 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | 14 Jun 2013 | 005-35587 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 May 2013 | 31 Mar 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 06 May 2013 | 30 Apr 2013 | 000-12957 |
| 10-K/A | Open Document | Open Filing | FORM 10-K/A | 30 Apr 2013 | 31 Dec 2012 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 24 Apr 2013 | 23 Apr 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | FORM 8-K | 26 Mar 2013 | 21 Mar 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | FORM 8-K | 18 Mar 2013 | 18 Mar 2013 | 000-12957 |
| 10-K | Open Document | Data | Open Filing | 10-K | 18 Mar 2013 | 31 Dec 2012 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 28 Feb 2013 | 28 Feb 2013 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 21 Feb 2013 | 21 Feb 2013 | 000-12957 |
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND4 | 13 Feb 2013 | 005-35587 | |
| 8-K | Open Document | Open Filing | 8-K | 12 Feb 2013 | 06 Feb 2013 | 000-12957 |
| SC 13G | Open Document | Open Filing | 12 Feb 2013 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 11 Feb 2013 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 06 Feb 2013 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 31 Jan 2013 | 005-35587 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Jan 2013 | 23 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Jan 2013 | 23 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Jan 2013 | 23 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G - ENZON PHARMACEUTICALS, INC. | 02 Jan 2013 | 005-35587 | |
| 8-K | Open Document | Open Filing | 8-K | 20 Dec 2012 | 14 Dec 2012 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 30 Nov 2012 | 29 Nov 2012 | 000-12957 |
| SC 13D/A | Open Document | Open Filing | 28 Nov 2012 | 005-35587 | ||
| SC 13D/A | Open Document | Open Filing | 13 Nov 2012 | 005-35587 | ||
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 09 Nov 2012 | 30 Sep 2012 | 000-12957 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Nov 2012 | 07 Nov 2012 | |
| 8-K | Open Document | Open Filing | 8-K | 31 Oct 2012 | 31 Oct 2012 | 000-12957 |
| UPLOAD | Open Document | Open Filing | 12 Oct 2012 | |||
| CORRESP | Open Document | Open Filing | 20 Sep 2012 | |||
| UPLOAD | Open Document | Open Filing | 07 Sep 2012 | |||
| SC 13G/A | Open Document | Open Filing | 06 Sep 2012 | 005-35587 | ||
| 10-Q/A | Open Document | Data | Open Filing | 10-Q/A | 21 Aug 2012 | 30 Jun 2012 | 000-12957 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Aug 2012 | 14 Aug 2012 | |
| CORRESP | Open Document | Open Filing | 13 Aug 2012 | |||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Aug 2012 | 10 Aug 2012 | |
| 10-Q | Open Document | Open Filing | FORM 10-Q | 03 Aug 2012 | 30 Jun 2012 | 000-12957 |
| 8-K | Open Document | Open Filing | 8-K | 01 Aug 2012 | 01 Aug 2012 | 000-12957 |
| UPLOAD | Open Document | Open Filing | 30 Jul 2012 | |||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | |
| 8-K/A | Open Document | Open Filing | 26 Jun 2012 | 16 May 2012 | 000-12957 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jun 2012 | 20 Jun 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jun 2012 | 05 Jun 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jun 2012 | 05 Jun 2012 | |
| 8-K | Open Document | Open Filing | 22 May 2012 | 16 May 2012 | 000-12957 | |
| 8-K | Open Document | Open Filing | 07 May 2012 | 07 May 2012 | 000-12957 | |
| 10-Q | Open Document | Data | Open Filing | 02 May 2012 | 31 Mar 2012 | 000-12957 | |
| 8-K | Open Document | Open Filing | 02 May 2012 | 02 May 2012 | 000-12957 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS SC 13GA 3-31-2012 | 10 Apr 2012 | 005-35587 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 06 Apr 2012 | 31 Dec 2011 | 000-12957 |
| DEFA14A | Open Document | Open Filing | 06 Apr 2012 | 000-12957 | ||
| DEF 14A | Open Document | Open Filing | 06 Apr 2012 | 16 May 2012 | 000-12957 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Mar 2012 | 28 Mar 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Mar 2012 | 15 Mar 2012 | |
| 10-K | Open Document | Data | Open Filing | 12 Mar 2012 | 31 Dec 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 12 Mar 2012 | 12 Mar 2012 | 000-12957 | |
| 4 | Open Document | Open Filing | FORM 4 | 29 Feb 2012 | 27 Feb 2012 | |
| 3 | Open Document | Open Filing | FORM 3 | 29 Feb 2012 | 27 Feb 2012 | |
| 8-K | Open Document | Open Filing | 28 Feb 2012 | 27 Feb 2012 | 000-12957 | |
| 3/A | Open Document | Open Filing | FORM 3/A | 28 Feb 2012 | 17 Feb 2011 | |
| SC 13D/A | Open Document | Open Filing | 28 Feb 2012 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS SC 13GA 12-31-2011 | 14 Feb 2012 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS, INC. | 14 Feb 2012 | 005-35587 | |
| 8-K | Open Document | Open Filing | 13 Feb 2012 | 10 Feb 2012 | 000-12957 | |
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND3 | 10 Feb 2012 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | 09 Feb 2012 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 06 Feb 2012 | 005-35587 | ||
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Nov 2011 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Dec 2011 | 19 Dec 2011 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Dec 2011 | 19 Dec 2011 | |
| 8-K | Open Document | Open Filing | 09 Dec 2011 | 08 Dec 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 30 Nov 2011 | 23 Nov 2011 | 000-12957 | |
| 8-K/A | Open Document | Open Filing | 23 Nov 2011 | 13 Oct 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Nov 2011 | 17 Nov 2011 | |
| 4 | Open Document | Open Filing | 10 Nov 2011 | 10 Nov 2011 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Nov 2011 | 08 Nov 2011 | |
| 10-Q | Open Document | Data | Open Filing | 04 Nov 2011 | 30 Sep 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 03 Nov 2011 | 03 Nov 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 17 Oct 2011 | 13 Oct 2011 | 000-12957 | |
| SC 13G | Open Document | Open Filing | 06 Oct 2011 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 22 Sep 2011 | 22 Sep 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 20 Sep 2011 | 15 Sep 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Sep 2011 | 15 Sep 2011 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Sep 2011 | 15 Sep 2011 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Sep 2011 | 15 Sep 2011 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Sep 2011 | 15 Sep 2011 | |
| SC 13D/A | Open Document | Open Filing | 22 Aug 2011 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 17 Aug 2011 | 11 Aug 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Aug 2011 | 12 Aug 2011 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Aug 2011 | 12 Aug 2011 | |
| 4 | Open Document | Open Filing | 16 Aug 2011 | 12 Aug 2011 | ||
| SC 13D/A | Open Document | Open Filing | 15 Aug 2011 | 005-35587 | ||
| 8-K/A | Open Document | Open Filing | 08 Aug 2011 | 10 May 2011 | 000-12957 | |
| 10-Q | Open Document | Data | Open Filing | 05 Aug 2011 | 30 Jun 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 04 Aug 2011 | 04 Aug 2011 | 000-12957 | |
| 3 | Open Document | Open Filing | 01 Aug 2011 | 20 Jul 2011 | ||
| 3 | Open Document | Open Filing | 01 Aug 2011 | 20 Jul 2011 | ||
| 3 | Open Document | Open Filing | 01 Aug 2011 | 20 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 4 | Open Document | Open Filing | 06 Jul 2011 | 01 Jul 2011 | ||
| 8-K | Open Document | Open Filing | 20 Jun 2011 | 09 Jun 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | 09 Jun 2011 | 08 Jun 2011 | ||
| 3 | Open Document | Open Filing | 09 Jun 2011 | 08 Jun 2011 | ||
| 4 | Open Document | Open Filing | 02 Jun 2011 | 01 Jun 2011 | ||
| 8-K | Open Document | Open Filing | 31 May 2011 | 26 May 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 19 May 2011 | 19 May 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 16 May 2011 | 10 May 2011 | 000-12957 | |
| S-8 | Open Document | Open Filing | 10 May 2011 | 333-174099 | ||
| 10-Q | Open Document | Open Filing | 06 May 2011 | 31 Mar 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 06 May 2011 | 06 May 2011 | 000-12957 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 26 Apr 2011 | 31 Dec 2010 | 000-12957 |
| SC 13G | Open Document | Open Filing | ENZON PHARMACEUTICALS, INC. | 21 Apr 2011 | 005-35587 | |
| DEF 14A | Open Document | Open Filing | 08 Apr 2011 | 10 May 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | 05 Apr 2011 | 03 Apr 2011 | ||
| 4 | Open Document | Open Filing | 05 Apr 2011 | 03 Apr 2011 | ||
| 4 | Open Document | Open Filing | 05 Apr 2011 | 03 Apr 2011 | ||
| 4 | Open Document | Open Filing | 01 Apr 2011 | 30 Mar 2011 | ||
| 4 | Open Document | Open Filing | 01 Apr 2011 | 30 Mar 2011 | ||
| 4 | Open Document | Open Filing | 01 Apr 2011 | 30 Mar 2011 | ||
| 8-K | Open Document | Open Filing | 24 Mar 2011 | 21 Mar 2011 | 000-12957 | |
| 8-K | Open Document | Open Filing | 17 Mar 2011 | 11 Mar 2011 | 000-12957 | |
| 10-K | Open Document | Open Filing | 16 Mar 2011 | 31 Dec 2010 | 000-12957 | |
| SC 13D/A | Open Document | Open Filing | MARCH 4, 2011 | 04 Mar 2011 | 005-35587 | |
| 4 | Open Document | Open Filing | 01 Mar 2011 | 28 Feb 2011 | ||
| 3 | Open Document | Open Filing | FORM 3 | 28 Feb 2011 | 17 Feb 2011 | |
| 4 | Open Document | Open Filing | 24 Feb 2011 | 22 Feb 2011 | ||
| 8-K | Open Document | Open Filing | 17 Feb 2011 | 17 Feb 2011 | 000-12957 | |
| SC 13G/A | Open Document | Open Filing | 14 Feb 2011 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND2 | 11 Feb 2011 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | 13G AMENDMENT | 11 Feb 2011 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS, INC. | 10 Feb 2011 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | 04 Feb 2011 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | 04 Feb 2011 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS SC 13GA 12-31-2010 | 04 Feb 2011 | 005-35587 | |
| 4 | Open Document | Open Filing | 28 Jan 2011 | 17 Jan 2011 | ||
| 5 | Open Document | Open Filing | 28 Jan 2011 | 31 Dec 2010 | ||
| 5 | Open Document | Open Filing | 28 Jan 2011 | 31 Dec 2010 | ||
| 4 | Open Document | Open Filing | 28 Jan 2011 | 17 Jan 2011 | ||
| 5 | Open Document | Open Filing | 28 Jan 2011 | 31 Dec 2010 | ||
| 4 | Open Document | Open Filing | 28 Jan 2011 | 17 Jan 2011 | ||
| SC 13D/A | Open Document | Open Filing | 28 Jan 2011 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 25 Jan 2011 | 19 Jan 2011 | 000-12957 | |
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 4 | Open Document | Open Filing | 05 Jan 2011 | 03 Jan 2011 | ||
| 8-K | Open Document | Open Filing | 21 Dec 2010 | 21 Dec 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 07 Dec 2010 | 03 Dec 2010 | 000-12957 | |
| 4 | Open Document | Open Filing | 24 Nov 2010 | 23 Nov 2010 | ||
| 4 | Open Document | Open Filing | 24 Nov 2010 | 23 Nov 2010 | ||
| 4 | Open Document | Open Filing | 24 Nov 2010 | 23 Nov 2010 | ||
| SC 13D/A | Open Document | Open Filing | 18 Nov 2010 | 005-35587 | ||
| SC 13D/A | Open Document | Open Filing | 16 Nov 2010 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 12 Nov 2010 | 10 Nov 2010 | 000-12957 | |
| SC 13D/A | Open Document | Open Filing | 10 Nov 2010 | 005-35587 | ||
| 10-Q | Open Document | Open Filing | 04 Nov 2010 | 30 Sep 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 02 Nov 2010 | 02 Nov 2010 | 000-12957 | |
| 4 | Open Document | Open Filing | 24 Sep 2010 | 22 Sep 2010 | ||
| 4 | Open Document | Open Filing | 24 Sep 2010 | 22 Sep 2010 | ||
| 4 | Open Document | Open Filing | 24 Sep 2010 | 22 Sep 2010 | ||
| 4 | Open Document | Open Filing | 17 Sep 2010 | 15 Sep 2010 | ||
| 4 | Open Document | Open Filing | 07 Sep 2010 | 02 Sep 2010 | ||
| 4 | Open Document | Open Filing | 27 Aug 2010 | 26 Aug 2010 | ||
| 10-Q | Open Document | Open Filing | 09 Aug 2010 | 30 Jun 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 03 Aug 2010 | 03 Aug 2010 | 000-12957 | |
| 3 | Open Document | Open Filing | 28 Jul 2010 | 23 Jul 2010 | ||
| 8-K | Open Document | Open Filing | 15 Jul 2010 | 13 Jul 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 08 Jul 2010 | 01 Jul 2010 | 000-12957 | |
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 4 | Open Document | Open Filing | 06 Jul 2010 | 01 Jul 2010 | ||
| 10-K/A | Open Document | Open Filing | 01 Jul 2010 | 31 Dec 2009 | 000-12957 | |
| DEFR14A | Open Document | Open Filing | 29 Jun 2010 | 000-12957 | ||
| 4 | Open Document | Open Filing | 22 Jun 2010 | 18 Jun 2010 | ||
| 8-K | Open Document | Open Filing | 18 Jun 2010 | 17 Jun 2010 | 000-12957 | |
| DEF 14A | Open Document | Open Filing | 10 Jun 2010 | 13 Jul 2010 | 000-12957 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS INC 13GA2 | 10 Jun 2010 | 005-35587 | |
| SC 13D/A | Open Document | Open Filing | MAY 17, 2010 | 18 May 2010 | 005-35587 | |
| 4 | Open Document | Open Filing | 14 May 2010 | 12 May 2010 | ||
| PREC14A | Open Document | Open Filing | 14 May 2010 | 000-12957 | ||
| 4 | Open Document | Open Filing | 14 May 2010 | 12 May 2010 | ||
| 4 | Open Document | Open Filing | 14 May 2010 | 12 May 2010 | ||
| 10-Q | Open Document | Open Filing | 10 May 2010 | 31 Mar 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 10 May 2010 | 10 May 2010 | 000-12957 | |
| 8-K | Open Document | Open Filing | 8-K | 07 May 2010 | 07 May 2010 | 000-12957 |
| 4 | Open Document | Open Filing | 27 Apr 2010 | 19 Apr 2010 | ||
| 4 | Open Document | Open Filing | 27 Apr 2010 | 19 Apr 2010 | ||
| 3 | Open Document | Open Filing | 27 Apr 2010 | 19 Apr 2010 | ||
| 3 | Open Document | Open Filing | 27 Apr 2010 | 19 Apr 2010 | ||
| 8-K | Open Document | Open Filing | 22 Apr 2010 | 19 Apr 2010 | 000-12957 | |
| DEFA14A | Open Document | Open Filing | 22 Apr 2010 | 000-12957 | ||
| 10-K/A | Open Document | Open Filing | 15 Apr 2010 | 31 Dec 2009 | 000-12957 | |
| 4 | Open Document | Open Filing | 14 Apr 2010 | 03 Apr 2010 | ||
| 4 | Open Document | Open Filing | 13 Apr 2010 | 03 Apr 2010 | ||
| 4 | Open Document | Open Filing | 13 Apr 2010 | 03 Apr 2010 | ||
| 4 | Open Document | Open Filing | 13 Apr 2010 | 03 Apr 2010 | ||
| SC 13D/A | Open Document | Open Filing | 05 Apr 2010 | 005-35587 | ||
| 10-K | Open Document | Open Filing | 12 Mar 2010 | 31 Dec 2009 | 000-12957 | |
| 4 | Open Document | Open Filing | 10 Mar 2010 | 18 Feb 2010 | ||
| SC TO-I/A | Open Document | Open Filing | SCHEDULE TO-I, AMENDMENT NO. 2 | 08 Mar 2010 | 005-35587 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Mar 2010 | 08 Mar 2010 | 000-12957 |
| 4 | Open Document | Open Filing | 26 Feb 2010 | 24 Feb 2010 | ||
| 4 | Open Document | Open Filing | 24 Feb 2010 | 22 Feb 2010 | ||
| SC TO-I/A | Open Document | Open Filing | 23 Feb 2010 | 005-35587 | ||
| 8-K | Open Document | Open Filing | ENZON PHARMACEUTICALS 8-K | 23 Feb 2010 | 19 Feb 2010 | 000-12957 |
| SC 13D/A | Open Document | Open Filing | FEBRUARY 22, 2010 | 22 Feb 2010 | 005-35587 | |
| 8-K | Open Document | Open Filing | 17 Feb 2010 | 17 Feb 2010 | 000-12957 | |
| SC 13G | Open Document | Open Filing | ENZ13GSUBMISSION | 16 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | TERMINATION | 16 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | ENZN13GAMEND1 | 12 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | 13G/A | 12 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS, INC. | 12 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 11 Feb 2010 | 005-35587 | |
| SC 13G | Open Document | Open Filing | 05 Feb 2010 | 005-35587 | ||
| 8-K | Open Document | Open Filing | 05 Feb 2010 | 05 Feb 2010 | 000-12957 | |
| SC TO-I | Open Document | Open Filing | 05 Feb 2010 | 005-35587 | ||
| SC 13G/A | Open Document | Open Filing | AMENDMENT 2 TO FORM 13G | 02 Feb 2010 | 005-35587 | |
| SC 13G/A | Open Document | Open Filing | ENZON PHARMACEUTICALS INC 13GA 1 | 02 Feb 2010 | 005-35587 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 29 Jan 2010 | 29 Jan 2010 | 000-12957 |
| SC TO-C | Open Document | Open Filing | FORM 8-K | 29 Jan 2010 | 005-35587 | |
| 4 | Open Document | Open Filing | 29 Jan 2010 | 27 Jan 2010 | ||
| 4 | Open Document | Open Filing | 29 Jan 2010 | 27 Jan 2010 | ||
| 4 | Open Document | Open Filing | 29 Jan 2010 | 27 Jan 2010 | ||
| 4 | Open Document | Open Filing | 29 Jan 2010 | 27 Jan 2010 | ||
| 4 | Open Document | Open Filing | 29 Jan 2010 | 27 Jan 2010 | ||
| SC 13G | Open Document | Open Filing | 29 Jan 2010 | 005-35587 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 21 Jan 2010 | 19 Jan 2010 | 000-12957 |
| 4 | Open Document | Open Filing | 20 Jan 2010 | 17 Jan 2010 | ||
| 4 | Open Document | Open Filing | 20 Jan 2010 | 17 Jan 2010 | ||
| 4 | Open Document | Open Filing | 20 Jan 2010 | 17 Jan 2010 | ||
| 4 | Open Document | Open Filing | 20 Jan 2010 | 17 Jan 2010 | ||
| 4 | Open Document | Open Filing | 20 Jan 2010 | 17 Jan 2010 | ||
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 | 20 Jan 2010 | 005-35587 | |
| SC 13D/A | Open Document | Open Filing | 11 Jan 2010 | 005-35587 | ||
| 4 | Open Document | Open Filing | 06 Jan 2010 | 04 Jan 2010 | ||
| 4 | Open Document | Open Filing | 06 Jan 2010 | 04 Jan 2010 | ||
| 4 | Open Document | Open Filing | 06 Jan 2010 | 04 Jan 2010 | ||
| 4 | Open Document | Open Filing | 06 Jan 2010 | 04 Jan 2010 | ||
| 4 | Open Document | Open Filing | 06 Jan 2010 | 05 Jan 2010 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jan 2010 | 04 Jan 2010 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jan 2010 | 04 Jan 2010 |