List of insiders holdings for Spero 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 |
| GSK PLC 10% Owner | 2023-01-20 16:08:03 | 9,190,606 0 | 9,190,606 | Form 13D |
| Goyal Vikas Director | 2017-11-07 16:06:22 | 0 1,854,006 | 1,854,006 | Form 4 |
| Atlas Venture Fund IX L.P. Atlas Venture Associates IX L.P. Atlas Venture Associates IX LLC 10% Owner | 2018-02-13 11:04:09 | 1,376,968 0 | 1,376,968 | Form 13G |
| Shukla Sath CEO and President | 2024-02-05 20:40:36 | 1,176,007 0 | 1,176,007 | Form 4 |
| GV 2015 GP L.L.C. GV 2015 L.P. Alphabet Inc. 10% Owner | 2021-02-10 16:37:00 | 889,979 0 | 889,979 | Form 13G |
| Lundbeckfond Invest A/S 10% Owner | 2020-01-31 16:20:33 | 877,489 0 | 877,489 | Form 13G |
| HAMED KAMAL Chief Medical Officer | 2024-02-05 20:45:12 | 788,117 0 | 788,117 | Form 4 |
| Mahadevia Ankit Director | 2024-02-05 20:50:09 | 744,997 0 | 744,997 | Form 4 |
| Halse Reza Director | 2017-11-01 19:59:43 | 0 743,085 | 743,085 | Form 3 |
| Keutzer Timothy Chief Operating Officer | 2024-02-05 20:53:34 | 534,050 0 | 534,050 | Form 4 |
| JOSEPH TAMARA L Chief Legal Officer | 2024-02-05 20:48:40 | 531,615 0 | 531,615 | Form 4 |
| Rajavelu Esther See Remarks | 2024-02-05 20:44:28 | 419,866 0 | 419,866 | Form 4 |
| Larkin Cristina Chief Operating Officer | 2022-02-03 16:18:28 | 116,771 0 | 116,771 | Form 4 |
| Melnick David A. Chief Medical Officer | 2022-02-03 16:19:47 | 115,271 0 | 115,271 | Form 4 |
| Sendek Joel Chief Financial Officer | 2019-01-02 19:16:35 | 65,000 0 | 65,000 | Form 4 |
| Deshpande Milind Director | 2023-10-10 17:34:59 | 51,454 0 | 51,454 | Form 4 |
| Tregoning Kathleen Director | 2024-01-04 16:40:38 | 35,604 0 | 35,604 | Form 4 |
| Smith Cynthia Director | 2023-10-10 17:40:04 | 35,000 0 | 35,000 | Form 4 |
| Parr Thomas R JR Chief Scientific Officer | 2019-01-02 19:23:52 | 35,000 0 | 35,000 | Form 4 |
| Pottage John C Jr Director | 2023-10-10 17:43:17 | 35,000 0 | 35,000 | Form 4 |
| THOMAS FRANK E Director | 2023-10-10 17:39:37 | 35,000 0 | 35,000 | Form 4 |
| VINK PATRICK V.J.J. Director | 2023-10-10 17:28:36 | 35,000 0 | 35,000 | Form 4 |
| Jackson Scott Thomas Director | 2023-10-10 17:19:44 | 35,000 0 | 35,000 | Form 4 |
| FORMELA JEAN FRANCOIS Director | 2021-08-18 16:41:29 | 7500 0 | 7500 | Form 4 |
| SOUTHWELL DAVID P Director | 2018-06-06 20:01:38 | 6073 0 | 6073 | Form 4 |
| Breum Casper Director | 2018-06-06 20:01:14 | 6073 0 | 6073 | Form 4 |
| DiPalma Stephen J. See Remarks | 2023-07-24 16:46:28 | 0 0 | 0 | Form 3 |
| Aquilo Capital Management LLC Aquilo Capital L.P. 10% Owner | 2023-02-14 11:16:34 | 0 0 | 0 | Form 13G |