Spero Therapeutics, Inc. (SPRO)
Nasdaq · Pharmaceutical Preparations · Inc. DE
What they're doing
Between 2026-06-21 and 2026-09-19, public records show 3 signals for Spero Therapeutics, Inc.. Most notable: 2026-06-25: Filed 8-K disclosing director or officer change; 2026-07-14: Filed 8-K disclosing material agreement; 2026-08-28: Filed 8-K disclosing material agreement. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.
Generated 2026-09-19 from public records.
Signals, last 12 months
- Material 8-K filingFiled 8-K disclosing material agreement
- Material 8-K filingFiled 8-K disclosing material agreement
- Material 8-K filingFiled 8-K disclosing director or officer change
- Material 8-K filingFiled 8-K disclosing director or officer change
Insider transactions
| Date | Insider | Role | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-03 | Zack Debra | officer | A | 162,311 | 0 | $0 |
| 2026-06-23 | Deshpande Milind | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Tregoning Kathleen | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Smith Cynthia | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | VINK PATRICK V.J.J. | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | THOMAS FRANK E | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Jackson Scott Thomas | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Pottage John C Jr | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Deshpande Milind | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Tregoning Kathleen | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Smith Cynthia | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | VINK PATRICK V.J.J. | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | THOMAS FRANK E | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Jackson Scott Thomas | director | A | 10,000 | 0 | $0 |
| 2026-06-23 | Pottage John C Jr | director | A | 10,000 | 0 | $0 |
| 2026-05-04 | Rajavelu Esther | officer | S | 25,240 | 2.51 | $63,352 |
| 2026-05-04 | Rajavelu Esther | officer | S | 25,240 | 2.51 | $63,352 |
| 2026-02-06 | Rajavelu Esther | officer | S | 37,101 | 2.36 | $87,558 |
| 2026-02-06 | Rajavelu Esther | officer | S | 50,816 | 2.36 | $119,926 |
| 2026-02-06 | Keutzer Timothy | officer | S | 18,652 | 2.36 | $44,019 |
| 2026-02-06 | Rajavelu Esther | officer | S | 37,101 | 2.36 | $87,558 |
| 2026-02-06 | Rajavelu Esther | officer | S | 50,816 | 2.36 | $119,926 |
| 2026-02-06 | Keutzer Timothy | officer | S | 18,652 | 2.36 | $44,019 |
| 2026-02-04 | Keutzer Timothy | officer | S | 3,471 | 2.24 | $7,775 |
| 2026-02-04 | Keutzer Timothy | officer | S | 3,471 | 2.24 | $7,775 |
| 2026-02-03 | Keutzer Timothy | officer | S | 24,224 | 2.14 | $51,839 |
| 2026-02-03 | Keutzer Timothy | officer | S | 24,224 | 2.14 | $51,839 |
| 2026-02-02 | Keutzer Timothy | officer | S | 18,891 | 2.2 | $41,560 |
| 2026-02-02 | Keutzer Timothy | officer | A | 68,000 | 0 | $0 |
| 2026-02-02 | Rajavelu Esther | officer | S | 18,442 | 2.2 | $40,572 |
| 2026-02-02 | Rajavelu Esther | officer | A | 249,000 | 0 | $0 |
| 2026-02-02 | Keutzer Timothy | officer | A | 68,000 | 0 | $0 |
| 2026-02-02 | Keutzer Timothy | officer | S | 18,891 | 2.2 | $41,560 |
| 2026-02-02 | Rajavelu Esther | officer | A | 249,000 | 0 | $0 |
| 2026-02-02 | Rajavelu Esther | officer | S | 18,442 | 2.2 | $40,572 |
| 2025-11-07 | Rajavelu Esther | officer | S | 40,270 | 2.37 | $95,440 |
| 2025-11-07 | Rajavelu Esther | officer | S | 40,270 | 2.37 | $95,440 |
| 2025-08-28 | Mahadevia Ankit | director | S | 6,572 | 1.97 | $12,947 |
| 2025-08-28 | Keutzer Timothy | officer | S | 1,695 | 1.97 | $3,339 |
| 2025-08-28 | Mahadevia Ankit | director | S | 6,572 | 1.97 | $12,947 |
| 2025-08-28 | Keutzer Timothy | officer | S | 1,695 | 1.97 | $3,339 |
| 2025-06-12 | Mahadevia Ankit | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Deshpande Milind | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Jackson Scott Thomas | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | VINK PATRICK V.J.J. | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Pottage John C Jr | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Smith Cynthia | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | THOMAS FRANK E | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Tregoning Kathleen | director | A | 20,000 | 0 | $0 |
| 2025-06-12 | Mahadevia Ankit | director | A | 20,000 | 0 | $0 |
Federal contracts
No federal contract actions on record for this recipient mapping.
Lobbying
No federal lobbying filings on record for this client mapping.
Public attention
No Wikipedia pageview data linked to this company.