| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Casdin Partners Master Fund, L.P. | Director, 10%+ Owner | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Partners Master Fund, LP, By: Casdin Partners GP, LLC, its General Partner, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001534265 |
| Casdin Eli | Director, 10%+ Owner | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | /s/ Eli Casdin, Eli Casdin | 2025-11-12 | 0001534264 |
| Casdin Capital, LLC | Director, 10%+ Owner | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Capital LLC, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001534261 |
| Casdin Private Growth Equity Fund II, L.P. | Director | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Private Growth Equity Fund II, L.P., By: Casdin Private Growth Equity Fund II GP, LLC, its General Partner, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001891102 |
| Casdin Partners GP, LLC | Director, 10%+ Owner | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Partners GP LLC, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001534260 |
| Casdin Private Growth Equity Fund II GP, LLC | Director | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Private Growth Equity Fund GP II, LLC, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001919480 |
| Casdin Private Growth Equity Fund, L.P. | Director | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Private Growth Equity Fund, L.P., By: Casdin Private Growth Equity Fund II GP, LLC, its General Partner, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001823061 |
| CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Director | 1350 AVENUE OF THE AMERICAS, SUITE 2600, NEW YORK | Casdin Private Growth Equity Fund GP, LLC, By: /s/ Eli Casdin, Managing Member | 2025-11-12 | 0001864554 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LAB | Common Stock, $0.001 par value per share | Purchase | $253K | +225K | +0.37% | $1.12 | 61.1M | Nov 7, 2025 | See Footnote | F1, F5 |
| transaction | LAB | Common Stock, $0.001 par value per share | Purchase | $322K | +275K | +0.45% | $1.17 | 61.4M | Nov 10, 2025 | See Footnote | F2, F5 |
| transaction | LAB | Common Stock, $0.001 par value per share | Purchase | $359K | +300K | +0.49% | $1.20 | 61.7M | Nov 11, 2025 | See Footnote | F3, F5 |
| transaction | LAB | Common Stock, $0.001 par value per share | Purchase | $446K | +375K | +0.61% | $1.19 | 62.1M | Nov 12, 2025 | See Footnote | F4, F5 |
| holding | LAB | Common Stock, $0.001 par value per share | 2.9M | Nov 7, 2025 | Direct | F6 | |||||
| holding | LAB | Common Stock, $0.001 par value per share | 13.9M | Nov 7, 2025 | See Footnote | F7 | |||||
| holding | LAB | Common Stock, $0.001 par value per share | 2.74M | Nov 7, 2025 | See Footnote | F8 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1153 to $1.1321. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1688 to $1.1732. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote. |
| F3 | The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1881 to $1.2053. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1865 to $1.1913. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote. |
| F5 | The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP. |
| F6 | The securities are owned directly by Eli Casdin. |
| F7 | The securities are owned directly by Casdin Private Growth Equity Fund II, L.P. (the "Equity Fund II") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund II, and (ii) Eli Casdin, the managing member of Casdin. |
| F8 | The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the "Equity Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin. |
Eli Casdin has been deputized to represent the Reporting Persons on the board of directors of the Issuer. By virtue of Mr. Casdin's representation, for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act"), each of the Reporting Persons may be deemed directors by deputization of the Issuer. Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.