Insiders / Thomas Frank E
Thomas Frank E
CIK 1242616personinsider
Companies
2
First seen
Mar 2, 2026
Last activity
Jun 25, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Spero Therapeutics, Inc. · SPRO | 85,000 | — |
| Larimar Therapeutics, Inc. · LRMR | 7,000 | — |
All securities held
4 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Larimar Therapeutics, Inc. | Common Stock | 7,000 |
| Larimar Therapeutics, Inc. | Stock Option (Right to Buy)Derivative | 55,150 |
| Spero Therapeutics, Inc. | Common Stock | 85,000 |
| Spero Therapeutics, Inc. | Stock Option (right to buy)Derivative | 20,000 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 27, 2026 | Buy | LRMR Larimar Therapeutics, Inc. Common Stock | $25.0K | +5K +250.00% | 7,000 <0.01% of shares | low |
| Jun 23, 2026 | Grant | SPRO Spero Therapeutics, Inc. Common Stock | $0 | +10K +13.33% | 85,000 0.15% of shares | low |
| Jun 23, 2026 | Grant | SPRO Spero Therapeutics, Inc. Stock Option (right to buy) | — | +20K | 20,000 0.03% of shares | low |
| May 19, 2026 | Grant | LRMR Larimar Therapeutics, Inc. Stock Option (Right to Buy) | — | +55K | 55,150 0.05% of shares | low |