Jeffrey D. Marrazzo, Chief Executive Officer at Spark Therapeutics, Inc. (ONCE), sold 6,971 shares at $60.02 ($418K) on 2016-08-10, disclosed to the SEC on 2016-08-12.
Open-market sale of $418k 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.
Nothing distinguishes this filing.
| Filing → |
| ONCE | SELL | 2017-08-15 | $1.1M | — | Filing → |
| ONCE | SELL | 2017-08-04 | $2.3M | — | Filing → |
| ONCE | SELL | 2017-07-07 | $368K | — | Filing → |