List of insiders holdings for Seres Therapeutics Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Nestle Health Science US Holdings Inc. NESTLE SA NIMCO US Inc. 10% Owner | 2024-10-02 08:15:49 | 21,781,753 0 | 21,781,753 | Form 13D |
| 2 | NESTLE SA Societe des Produits Nestle S.A. 10% Owner | 2024-10-02 08:15:49 | 21,781,753 0 | 21,781,753 | Form 13D |
| 3 | Nutritional Health LTP Fund General Partner LLC Nutritional Health LTP Fund L.P. Flagship Pioneering Inc. AFEYAN NOUBAR 10% Owner | 2022-07-07 17:00:24 | 0 17,617,352 | 17,617,352 | Form 4 |
| 4 | AFEYAN NOUBAR Flagship Ventures Fund 2007 L.P. Flagship Ventures Fund IV L.P. Flagship Ventures Fund IV-Rx L.P. Flagship VentureLabs IV LLC Flagship Ventures 2007 General Partner LLC Flagship Ventures Fund IV General Partner LLC KANIA EDWIN M JR Director 10% Owner | 2017-02-13 15:06:56 | 12,682,876 0 | 12,682,876 | Form 13G |
| 5 | Flagship Ventures Fund IV General Partner LLC Flagship Ventures Fund IV L.P. Flagship Ventures Fund IV-Rx L.P. Nutritional Health LTP Fund General Partner LLC Nutritional Health LTP Fund L.P. Flagship Pioneering Inc. Flagship Pioneering Fund VI General Partner LLC Flagship Pioneering Fund VI L.P. AFEYAN NOUBAR 10% Owner | 2020-11-25 18:00:45 | 0 11,018,191 | 11,018,191 | Form 4 |
| 6 | Flagship Pioneering Fund VII General Partner LLC Flagship Pioneering Fund VII L.P. 10% Owner | 2022-07-07 17:00:37 | 0 5,825,495 | 5,825,495 | Form 3 |
| 7 | Arkowitz David Chief Financial Officer | 2024-02-16 21:13:51 | 751,597 0 | 751,597 | Form 4 |
| 8 | Thorell Marella See Remarks | 2025-02-11 16:15:12 | 650,000 0 | 650,000 | Form 4 |
| 9 | Aunins John G. Chief Technology Officer & EVP | 2020-01-31 16:05:20 | 300,000 0 | 300,000 | Form 4 |
| 10 | COOK DAVID N See Remarks | 2019-01-29 18:51:02 | 159,935 0 | 159,935 | Form 4 |
| 11 | Trucksis Michele See Remarks | 2018-01-30 20:58:24 | 129,893 0 | 129,893 | Form 4 |
| 12 | Woerle Hans-Juergen Director | 2025-02-06 08:05:04 | 120,000 0 | 120,000 | Form 4 |
| 13 | Ege David S. See Remarks | 2024-08-19 17:29:45 | 107,263 0 | 107,263 | Form 4 |
| 14 | Dere Willard H Director | 2025-04-11 16:05:04 | 100,000 0 | 100,000 | Form 4 |
| 15 | Biondi Paul Director | 2025-04-11 16:05:17 | 100,000 0 | 100,000 | Form 4 |
| 16 | Hashad Wael EVP & Chief Commercial Officer | 2017-01-27 17:56:04 | 100,000 0 | 100,000 | Form 4 |
| 17 | Graves Kurt Director | 2025-04-11 16:05:12 | 100,000 0 | 100,000 | Form 4 |
| 18 | Kender Richard N Director | 2025-04-11 16:05:09 | 100,000 0 | 100,000 | Form 4 |
| 19 | von Moltke Lisa See Remarks | 2025-02-19 20:05:09 | 90,343 0 | 90,343 | Form 4 |
| 20 | Cloghessy Paula See Remarks | 2023-10-31 21:43:04 | 73,936 0 | 73,936 | Form 4 |
| 21 | Chapman Marcus See Remarks | 2021-02-08 18:55:02 | 36,000 0 | 36,000 | Form 4 |
| 22 | Behar Gregory Director | 2023-06-23 17:24:28 | 35,000 0 | 35,000 | Form 4 |
| 23 | Zausner Meryl Director | 2022-07-06 19:19:52 | 31,746 0 | 31,746 | Form 4 |
| 24 | HORGAN KEVIN Chief Medical Officer and EVP | 2019-01-29 18:55:36 | 30,000 0 | 30,000 | Form 4 |
| 25 | Shaff Eric D. Director | 2025-08-19 16:08:56 | 16,273 0 | 16,273 | Form 4 |
| 26 | HUTT PETER BARTON Director | 2016-06-17 18:32:46 | 15,000 0 | 15,000 | Form 4 |
| 27 | CAUTREELS WERNER Director | 2015-06-29 18:10:06 | 15,000 0 | 15,000 | Form 4 |
| 28 | Kim Lorence H. Director | 2019-06-14 16:19:33 | 15,000 0 | 15,000 | Form 4 |
| 29 | Pomerantz Roger Director | 2019-06-14 16:19:06 | 15,000 0 | 15,000 | Form 4 |
| 30 | Berenson Stephen Director | 2025-07-02 17:38:55 | 11,470 0 | 11,470 | Form 4 |
| 31 | Rosiello Robert L. Director | 2025-08-06 16:10:04 | 10,000 0 | 10,000 | Form 4 |
| 32 | DesRosier Thomas See Remarks | 2025-08-19 16:07:47 | 9,364 0 | 9,364 | Form 4 |
| 33 | Young Teresa L. See Remarks | 2025-08-19 16:06:19 | 6,987 0 | 6,987 | Form 4 |
| 34 | Fraser Claire Director | 2025-07-02 17:34:14 | 6,452 0 | 6,452 | Form 4 |
| 35 | Ausiello Dennis A Director | 2025-07-02 17:58:32 | 6,452 0 | 6,452 | Form 4 |
| 36 | Henn Matthew R See Remarks | 2025-08-19 16:07:27 | 6,368 0 | 6,368 | Form 4 |