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 |
| 1 | GSK PLC 10% Owner |
2025-03-28 16:30:58 | 9,190,606 0 |
9,190,606 | Form 13D |
| 2 | Goyal Vikas Director |
2017-11-07 16:06:22 | 0 1,854,006 |
1,854,006 | Form 4 |
| 3 | Shukla Sath CEO & President |
2025-02-05 20:31:31 | 1,736,883 0 |
1,736,883 | Form 4 |
| 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 |
| 5 | 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 |
| 6 | Lundbeckfond Invest A/S 10% Owner |
2020-01-31 16:20:33 | 877,489 0 |
877,489 | Form 13G |
| 7 | HAMED KAMAL Chief Medical Officer |
2024-02-05 20:45:12 | 788,117 0 |
788,117 | Form 4 |
| 8 | Halse Reza Director |
2017-11-01 19:59:43 | 0 743,085 |
743,085 | Form 3 |
| 9 | Keutzer Timothy Chief Operating Officer |
2025-02-05 21:04:51 | 741,439 0 |
741,439 | Form 4 |
| 10 | Rajavelu Esther CFO & CBO |
2025-02-05 20:52:39 | 724,720 0 |
724,720 | Form 4 |
| 11 | Mahadevia Ankit Director |
2025-02-05 20:30:24 | 689,866 0 |
689,866 | Form 4 |
| 12 | JOSEPH TAMARA L Chief Legal Officer |
2024-02-05 20:48:40 | 531,615 0 |
531,615 | Form 4 |
| 13 | Larkin Cristina Chief Operating Officer |
2022-02-03 16:18:28 | 116,771 0 |
116,771 | Form 4 |
| 14 | Melnick David A. Chief Medical Officer |
2022-02-03 16:19:47 | 115,271 0 |
115,271 | Form 4 |
| 15 | Deshpande Milind Director |
2024-05-30 16:29:24 | 71,454 0 |
71,454 | Form 4 |
| 16 | Sendek Joel Chief Financial Officer |
2019-01-02 19:16:35 | 65,000 0 |
65,000 | Form 4 |
| 17 | THOMAS FRANK E Director |
2024-05-30 16:15:59 | 55,000 0 |
55,000 | Form 4 |
| 18 | Jackson Scott Thomas Director |
2024-05-30 16:27:14 | 55,000 0 |
55,000 | Form 4 |
| 19 | VINK PATRICK V.J.J. Director |
2024-05-30 16:25:29 | 55,000 0 |
55,000 | Form 4 |
| 20 | Tregoning Kathleen Director |
2024-05-30 16:25:28 | 55,000 0 |
55,000 | Form 4 |
| 21 | Smith Cynthia Director |
2024-05-30 16:17:12 | 55,000 0 |
55,000 | Form 4 |
| 22 | Pottage John C Jr Director |
2024-05-30 16:15:57 | 55,000 0 |
55,000 | Form 4 |
| 23 | Parr Thomas R JR Chief Scientific Officer |
2019-01-02 19:23:52 | 35,000 0 |
35,000 | Form 4 |
| 24 | FORMELA JEAN FRANCOIS Director |
2021-08-18 16:41:29 | 7,500 0 |
7,500 | Form 4 |
| 25 | SOUTHWELL DAVID P Director |
2018-06-06 20:01:38 | 6,073 0 |
6,073 | Form 4 |
| 26 | Breum Casper Director |
2018-06-06 20:01:14 | 6,073 0 |
6,073 | Form 4 |
| 27 | DiPalma Stephen J. See Remarks |
2023-07-24 16:46:28 | 0 0 |
0 | Form 3 |
| 28 | Aquilo Capital Management LLC Aquilo Capital L.P. 10% Owner |
2023-02-14 11:16:34 | 0 0 |
0 | Form 13G |