Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2018-04-03 | Sherman Matthew L | Director | +Buy | 20,000 | — | — |
| 2018-04-03 | Iwicki Mark T | Director | +Buy | 307,000 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 15,007 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 769,989 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 6,478 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 7,700 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 345,551 | — | — |
| 2018-04-03 | Polaris Venture Management Co. V, L.L.C. | TenPercentOwner | +Buy | 5,275 | — | — |
| 2018-04-03 | ARCH Venture Partners VII, L.P. | Other | +Buy | 1,150,000 | — | — |
| 2017-03-22 | Clarke Robert W. | Director,Officer | +Exercise | 4,525 | $2.21 | $10,000 |
| 2017-03-22 | Hava David L. | Officer | +Exercise | 2,263 | $2.21 | $5,001 |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
