Esther Rajavelu, See Remarks at Spero Therapeutics, Inc. (SPRO), sold 25,240 shares at $2.51 ($63K) on 2026-05-04, disclosed to the SEC on 2026-05-06.
Open-market sale of $63k SPRO by See Remarks. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| SPRO | SELL | 2025-11-12 | $191K | — | Filing → |
| SPRO | SELL | 2025-02-05 | $16K | — | Filing → |
| SPRO | SELL | 2024-11-12 | $53K | — | Filing → |