| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Alan L. Crane | 31.71% | 4,848,940 | $3.10M | Insider |
| Polaris Venture Management Co V LLC | 21.34% | 3,262,437 | $2.08M | Insider |
| Venrock Associates V LP | 19.72% | 3,015,017 | $1.93M | Insider |
| Cvf LLC | 16.96% | 2,592,577 | $1.66M | Insider |
| Steven Edward Hall | 15.41% | 2,356,227 | $1.51M | Insider |
| Lilly Co Eli | 15.41% | 2,356,227 | $1.51M | Insider |
| Roger Hawley | 10.30% | 1,575,367 | $1.01M | Insider |
| Polaris Venture Management Co IV LLC | 9.37% | 1,432,101 | $915.11k | Insider |
| Sabrina Martucci Johnson | 6.29% | 962,062 | $614.76k | Insider |
| Lux Capital Management LLC | 6.23% | 951,999 | $608.33k | Insider |