David S. Grayzel, Director at Surface Oncology, Inc. (SURF), sold 1,700,000 shares at $18.10 ($30.8M) on 2020-12-17, disclosed to the SEC on 2020-12-21.
Open-market sale of $30.8M SURF by Director. 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 → |
| SURF | SELL | 2020-12-21 | $13.8M | — | Filing → |
| SURF | BUY | 2018-04-23 | $1.5M | — | Filing → |