Zafgen, INC.
SEC CIK 1374690 · ZFGN · last insider filing 2026-05-20
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Deerfield Management Company, L.P. (Series C) | Director | filed 2016 - 2026 |
| Leff Jonathan S | Director | filed 2020 - 2026 |
| Sherman Jeffrey W | Director | filed 2023 - 2026 |
| Thomas Frank E | Director | filed 2014 - 2026 |
| Flynn James E | Director | filed 2016 - 2026 |
| Truitt Joseph | Director | filed 2020 - 2026 |
| Hamilton Thomas Edward | Director | filed 2020 - 2026 |
| Deerfield Mgmt L.P. | Director | filed 2016 - 2026 |
| Deerfield Partners, LP | Director | filed 2016 - 2026 |
| Deerfield Private Design Fund III, L.P. | Director | filed 2020 - 2026 |
| Deerfield Mgmt III, L.P. | Director | filed 2020 - 2026 |
| Deerfield Healthcare Innovations Fund, L.P. | Director | filed 2020 - 2026 |
| Deerfield Mgmt HIF, L.P. | Director | filed 2020 - 2026 |
| Deerfield Private Design Fund IV, L.P. | Director | filed 2020 - 2026 |
| Deerfield Mgmt IV, L.P. | Director | filed 2020 - 2026 |
| BEN-Maimon Carole | Director · President and CEO | filed 2020 - 2026 |
| Barrett Peter | Director | filed 2014 - 2022 |
| Daniel Thomas O | Director | filed 2016 - 2021 |
| Lamattina John L | Director | filed 2014 - 2019 |
| Perez Robert J | Director | filed 2015 - 2019 |
| Mcdonough Cameron Geoffrey | Director | filed 2015 - 2019 |
| Everett Wendy | Director | filed 2018 - 2019 |
| Hatfield Jeffrey S. | Director · Chief Executive Officer | filed 2017 - 2019 |
| Hughes Thomas E. | Director · See Remarks | filed 2014 - 2018 |
| Booth Bruce | Director | filed 2014 - 2018 |
| Heller Frances K | Director | filed 2014 - 2017 |
| Starr Kevin P | Director | filed 2014 - 2015 |
| Goldberg Avi Y. | Director | filed 2014 - 2015 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Celano Michael | Chief Financial Officer | filed 2020 - 2026 |
| Clayton Russell | Chief Medical Officer | filed 2023 - 2026 |
| Shankar Gopi | Chief Development Officer | filed 2023 - 2026 |
| Singhal Priya | See Remarks | filed 2019 - 2019 |
| Allen Patricia L | See Remarks | filed 2014 - 2019 |
| KIM Dennis D | Chief Medical Officer | filed 2014 - 2019 |
| Mcveigh Brian | Chief Business Officer | filed 2018 - 2019 |
| Secor Alicia | Chief Commercial Officer | filed 2014 - 2016 |
| Loustau Patrick | President | filed 2014 - 2016 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.