Jeffrey D. Marrazzo, Chief Executive Officer at Spark Therapeutics, Inc. (ONCE), sold 28,650 shares at $80.01 ($2.3M) on 2017-08-02, disclosed to the SEC on 2017-08-04.
Open-market sale of $2.3M ONCE by Chief Executive Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| Filing → |
| ONCE | SELL | 2017-06-22 | $572K | — | Filing → |
| ONCE | SELL | 2016-10-19 | $273K | — | Filing → |
| ONCE | SELL | 2016-09-19 | $627K | — | Filing → |