|
⚲
|
| Keyboard |
| Spero Therapeutics Inc | |
|---|---|
| Ticker | SPRO |
| CIK # | 0001701108 |
| CUSIP | 83171G103 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | 675 Massachusetts Avenue 14th Floor, Cambridge, MA 02139 |
| Source | [EDGAR] |
| Reg D Offering (Form D) | Filed | Raised | Terms |
|---|---|---|---|
| Spero Therapeutics Inc | 2022-11-15 | 9.0 M | Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose |
| Spero Therapeutics LLC | 2017-03-21 | 43.2 M | Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001701108] | 10-K | |
| [0001701108] | 10-Q | |
| [0001701108] | 3 | |
| [0001701108] | 4 | |
| [0001701108] | 8-K | |
| [0001701108] | D | |
| [0001701108] | SC 13D | |
| [0001701108] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Rajavelu Esther
Common Stock
|
2026-02-06 | Sell | 37,101 | $2.36 | 87,558 |
|
Keutzer Timothy
Common Stock
|
2026-02-06 | Sell | 18,652 | $2.36 | 44,019 |
|
Rajavelu Esther
Common Stock
|
2026-02-06 | Sell | 50,816 | $2.36 | 119,926 |
|
Keutzer Timothy
Common Stock
|
2026-02-04 | Sell | 3,471 | $2.24 | 7,775 |
|
Keutzer Timothy
Common Stock
|
2026-02-03 | Sell | 24,224 | $2.14 | 51,839 |
|
Rajavelu Esther
Stock Option (Right to Buy) · derivative
|
2026-02-02 | Grant | 498,000 | $0.00 | |
|
Rajavelu Esther
Common Stock
|
2026-02-02 | Sell | 18,442 | $2.20 | 40,572 |
|
Keutzer Timothy
Common Stock
|
2026-02-02 | Sell | 18,891 | $2.20 | 41,560 |
|
Keutzer Timothy
Common Stock
|
2026-02-02 | Grant | 68,000 | $0.00 | |
|
Rajavelu Esther
Common Stock
|
2026-02-02 | Grant | 249,000 | $0.00 | |
|
Keutzer Timothy
Stock Option (Right to Buy) · derivative
|
2026-02-02 | Grant | 137,000 | $0.00 | |
|
Rajavelu Esther
Common Stock
|
2025-11-07 | Sell | 40,270 | $2.37 | 95,440 |
|
Common Stock
|
2025-08-28 | Sell | 6,572 | $1.97 | 12,947 |
|
Common Stock
|
2025-08-28 | Sell | 1,695 | $1.97 | 3,339 |
|
Pottage John C Jr
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
|
Mahadevia Ankit
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
|
Deshpande Milind
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
|
Jackson Scott Thomas
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
|
VINK Patrick VJJ
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
|
Smith Cynthia
Common Stock
|
2025-06-12 | Grant | 20,000 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 50 | 21,233,902 |
| 2025-12-31 | 56 | 21,225,804 |
| 2025-09-30 | 49 | 11,372,142 |
| 2025-06-30 | 44 | 11,270,053 |
| 2025-03-31 | 40 | 15,117,816 |
| 2024-12-31 | 51 | 16,055,503 |
| 2024-09-30 | 47 | 12,344,390 |
| 2024-06-30 | 49 | 13,878,715 |
| 2024-03-31 | 56 | 13,792,646 |
| 2023-12-31 | 51 | 13,847,187 |
| 2023-09-30 | 54 | 14,170,585 |
| 2023-06-30 | 57 | 14,363,822 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| DLK Investment Management LLC | [2026-06-30] | SOLE | 31,355 | 31,355 |
| Assenagon Asset Management SA | [2026-06-30] | SOLE | 18,636 | 18,636 |
| FNY Investment Advisers LLC | [2026-06-30] | SOLE | 8,300 | 10 |
| Farther Finance Advisors LLC | [2026-06-30] | SOLE | 0 | 10 | Prev | Page 1 | Next |