CIK 0001701108 · Non-accelerated filer<br>Smaller reporting company
Spero Therapeutics, Inc.
Sign in to watch- Ticker
- SPRO
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- Phone
- 857-242-1600
- Business address
- 675 MASSACHUSETTS AVENUE, 14TH FLOOR, CAMBRIDGE, MA, 02139
- Former names
- Spero Therapeutics, LLC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $42,485
- in 1 filing
Net −$42,485. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 95 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2022-02-01 | JOSEPH TAMARA L Chief Legal Officer | Grant or award · Stock Option (Right to Buy) | +53,190 | 53,190 | ||
| 2022-01-31 | Aquilo Capital Management, LLC 10% owner | Purchase | +125,000 | $11.59 | $1.4M | 5,148,135 |
| 2022-01-24 | Aquilo Capital Management, LLC 10% owner | Purchase | +1,599 | $10.89 | $17K | 5,023,135 |
| 2022-01-18 | Aquilo Capital Management, LLC 10% owner | Purchase | +48,488 | $12.41 | $602K | 5,021,536 |
| 2022-01-10 | Aquilo Capital Management, LLC 10% owner | Purchase | +8,867 | $12.93 | $115K | 4,973,048 |
| 2022-01-05 | Tregoning Kathleen Director | Grant or award · Stock Option (Right to Buy) | +4,428 | $9.03 | $40K | 4,428 |
| 2022-01-05 | THOMAS FRANK E Director | Grant or award · Stock Option (Right to Buy) | +2,214 | $9.03 | $20K | 2,214 |
| 2018-07-17 | GLAXOSMITHKLINE PLC 10% owner | Purchase | +80,000 | $12.50 | $1.0M | 1,934,006 |
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion | +244,147 | 244,147 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion | +246,272 | 490,419 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion | +328,992 | 819,411 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion | +606,024 | 1,425,435 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Purchase | +428,571 | $14.00 | $6.0M | 1,854,006 |
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion · Junior preferred stock | −1,483,784 | 0 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion · Series A preferred stock | −982,906 | 0 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion · Series B preferred stock | −1,250,000 | 0 | ||
| 2017-11-06 | GLAXOSMITHKLINE PLC 10% owner | Conversion · Series C preferred stock | −3,683,045 | 0 |
Page 8 of 8 · 157 trades