| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OYST | Common Stock | Sale | -$4.44M | -304K | -22.3% | $14.63 | 1.06M | Oct 18, 2021 | See Footnotes | F1, F2, F3 |
| transaction | OYST | Common Stock | Sale | -$28K | -1.91K | -22.68% | $14.63 | 6.52K | Oct 18, 2021 | See Footnotes | F1, F2, F4 |
| transaction | OYST | Common Stock | Sale | -$3.67M | -243K | -22.96% | $15.09 | 815K | Oct 18, 2021 | See Footnotes | F1, F3, F5 |
| transaction | OYST | Common Stock | Sale | -$23.1K | -1.53K | -23.49% | $15.09 | 4.99K | Oct 18, 2021 | See Footnotes | F1, F4, F5 |
| holding | OYST | Common Stock | 2.24M | Oct 18, 2021 | Direct | F6 | |||||
| holding | OYST | Common Stock | 1M | Oct 18, 2021 | See Footnotes | F7 |
| Id | Content |
|---|---|
| F1 | The sale of these shares was effected pursuant to a Rule 10b5-1 trading plan adopted by each of Versant Venture Capital IV, L.P. ("Versant IV") and Versant Side Fund IV, L.P. ("Versant Side Fund IV"). |
| F2 | The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $14.00 to $14.995, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote (2) to this Form 4. |
| F3 | Shares held by Versant IV. Versant Ventures IV, LLC ("Versant Ventures IV") is the sole general partner of Versant IV. William J. Link, a member of the Issuer's board of directors, is a managing member of Versant Ventures IV and may be deemed to share voting and dispositive power over the shares held by Versant IV. Each of Versant Ventures IV and William J. Link disclaims beneficial ownership of the shares held by Versant IV, except to the extent of their respective pecuniary interests therein. William J. Link is a director of the Issuer and, accordingly, files separate Section 16 reports. |
| F4 | Shares held by Versant Side Fund IV. Versant Ventures IV is the sole general partner of Versant Side Fund IV. William J. Link, a member of the Issuer's board of directors, is a managing member of Versant Ventures IV and may be deemed to share voting and dispositive power over the shares held by Versant Side Fund IV. Each of Versant Ventures IV and William J. Link disclaims beneficial ownership of the shares held by Versant Side Fund IV, except to the extent of their respective pecuniary interests therein. William J. Link is a director of the Issuer and, accordingly, files separate Section 16 reports. |
| F5 | The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $15.00 to $15.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote (5) to this Form 4. |
| F6 | Shares held by Versant Venture Capital VI, L.P. ("Versant VI"). Versant Ventures VI GP-GP, LLC ("Versant Ventures VI GP-GP") is the sole general partner of Versant Ventures VI GP, L.P. ("Versant Ventures VI GP") and Versant Ventures VI GP is the sole general partner of Versant VI. Clare Ozawa, a member of the Issuer's board of directors, is a managing member of Versant Ventures VI GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant VI. Each of Versant Ventures VI GP-GP, Versant Ventures VI GP and Clare Ozawa disclaims beneficial ownership of the shares held by Versant VI, except to the extent of their respective pecuniary interests therein. Clare Ozawa is a director of the Issuer and, accordingly files separate Section 16 reports. |
| F7 | Shares held by Versant Vantage I, L.P. ("Versant Vantage"). Versant Vantage I GP-GP, LLC ("Versant Vantage I GP-GP") is the sole general partner of Versant Vantage I GP, L.P. ("Versant Vantage I GP") and Versant Vantage I GP is the sole general Partner of Versant Vantage. Clare Ozawa, a member of the Issuer's board of directors, is a managing member of Versant Vantage I GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant Vantage. Each of Versant Vantage I GP-GP, Versant Vantage I GP, and Clare Ozawa disclaims beneficial ownership of the shares held by Versant Vantage, except to the extent of their respective pecuniary interests therein. Clare Ozawa is a director of the Issuer and, accordingly files separate Section 16 reports. |