Aquilo Capital Management, LLC, 10% Owner at Spero Therapeutics, Inc. (SPRO), sold 1,901,796 shares at $2.25 ($4.3M) on 2022-09-22, disclosed to the SEC on 2022-09-26.
Open-market sale of $4.3M SPRO by 10% Owner. 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.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $2.25 | 566,284 | $1.3M | 29.8% |
| 2 | $2.25 | 1,335,512 | $3.0M | 70.2% |
| Total | $2.25 avg | 1,901,796 | $4.3M | 100% |
| Filing → |
| SPRO | BUY | 2022-02-01 | $1.4M | — | Filing → |
| SPRO | BUY | 2022-01-20 | $1.2M | — | Filing → |
| SPRO | BUY | 2022-01-12 | $229K | — | Filing → |