Tamara L. Joseph, Chief Legal Officer at Spero Therapeutics, Inc. (SPRO), sold 1,854 shares at $1.26 ($2K) on 2023-08-28, disclosed to the SEC on 2023-08-30.
Open-market sale of $2k SPRO by Chief Legal Officer. 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.
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| CBST | SELL | 2012-06-08 | $823K | — | Filing → |