Rajavelu Esther
SEC insider (Form 3/4/5 filer). CIK 0001903716. Officer at Spero Therapeutics, Inc. (SPRO). 12 reported Form 4/5 transactions since Sep 2024; latest on May 4, 2026. Located in CAMBRIDGE, MA.
Companies Rajavelu Esther has filed insider reports for
- Spero Therapeutics, Inc. (SPRO): Officer, See Remarks
Rajavelu Esther
CIK: 0001903716
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Spero Therapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- May 4, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect25.2K shares at avg. $2.51$63K - Feb 6, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect37.1K shares at avg. $2.36$88K - Feb 6, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect50.8K shares at avg. $2.36$120K - Feb 2, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect18.4K shares at avg. $2.20$41K - Feb 2, 2026SPRO
Spero Therapeutics, Inc.
AwardDirect249K shares- - Nov 7, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect40.3K shares at avg. $2.37$95K - May 2, 2025SPRO
Spero Therapeutics, Inc.
AwardDirect185K shares- - Feb 5, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect20.7K shares at avg. $0.78$16K - Feb 3, 2025SPRO
Spero Therapeutics, Inc.
AwardDirect266.1K shares- - Feb 3, 2025SPRO
Spero Therapeutics, Inc.
AwardDirect100K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 4, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 25,240 | $2.51 | $63,352 | Direct |
| Feb 6, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 37,101 | $2.36 | $87,558 | Direct |
| Feb 6, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 50,816 | $2.36 | $119,926 | Direct |
| Feb 2, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 18,442 | $2.20 | $40,572 | Direct |
| Feb 2, 2026 | SPRO Spero Therapeutics, Inc. | Award | 249,000 | - | $0 | Direct |
| Nov 7, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 40,270 | $2.37 | $95,440 | Direct |
| May 2, 2025 | SPRO Spero Therapeutics, Inc. | Award | 185,000 | - | - | Direct |
| Feb 5, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 20,689 | $0.78 | $16,137 | Direct |
| Feb 3, 2025 | SPRO Spero Therapeutics, Inc. | Award | 266,139 | - | - | Direct |
| Feb 3, 2025 | SPRO Spero Therapeutics, Inc. | Award | 100,000 | - | - | Direct |
1-10 of 12 transactions