Insider holders · CIK 0001485003
Sesen Bio, Inc. · SESN
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Clairmark Investments Ltd.10% Owner | 3,582,328 | — | 3,582,328 | Sep 28, 2016 · 4:14 pm EDT | Form 3 |
| Leslie DanDirector | — | 3,582,328 | 3,582,328 | Sep 22, 2016 · 5:04 pm EDT | Form 4 |
| JAFCO Super V3 Investment Limited Partnership10% Owner | 1,923,226 | — | 1,923,226 | May 11, 2015 · 2:43 pm EDT | Form 4 |
| Flagship Ventures Fund IV-Rx, L.P.10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Flagship Ventures 2007 General Partner LLC10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Flagship Ventures Fund 2007, L.P.10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Flagship Ventures Fund IV General Partner LLC10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Flagship Ventures Fund IV, L.P.10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Edwin M Kania Jr.10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Noubar Afeyan10% Owner | 1,833,802 | — | 1,833,802 | Sep 26, 2016 · 4:03 pm EDT | Form 4 |
| Abbie CelnikerDirector | 409,915 | — | 409,915 | Sep 30, 2016 · 4:12 pm EDT | Form 4 |
| Stephen A HurlyPresident and CEO | 398,031 | — | 398,031 | Sep 22, 2016 · 4:54 pm EDT | Form 4 |
| MVA Investors, LLC10% Owner | 297,860 | — | 297,860 | Jun 14, 2016 · 5:24 pm EDT | Form 4 |
| Boxer Capital, LLC10% Owner | 297,860 | — | 297,860 | Jun 14, 2016 · 5:24 pm EDT | Form 4 |
| Boxer Asset Management Inc.10% Owner | 297,860 | — | 297,860 | Jun 14, 2016 · 5:24 pm EDT | Form 4 |
| Joseph Lewis10% Owner | 297,860 | — | 297,860 | Jun 14, 2016 · 5:24 pm EDT | Form 4 |
| Eric Steven FurfineChief Scientific Officer | 34,648 | — | 34,648 | Dec 30, 2015 · 4:03 pm EST | Form 4 |
| Karen L TubridyChief Development Officer | 32,753 | — | 32,753 | Jun 29, 2016 · 4:16 pm EDT | Form 4 |
| Dennis KimChief Medical Officer | 20,000 | — | 20,000 | Dec 6, 2018 · 4:09 pm EST | Form 3 |
| John J McCabeChief Financial Officer | 5,930 | — | 5,930 | Feb 16, 2017 · 5:09 pm EST | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.