| 1 | Equity Under the Plan |
| 2 | Last updated: March XX, 2026 | Total fully diluted: 10,124,213 shares | All grants subject to board approval and 409A valuation | Source of truth: Carta |
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| 5 | NXR-004 | Finn Hassan | Research Engineer | Employee | US | San Francisco, CA | 1,235 | 0.012% | ISO | $120,000 | Yes | 09/15/2025 | $0.50 | 09/08/2025 | 4-year, 1-year cliff | Complete | | Grant issued prior to departure; vesting start matches first day of employment; unvested options cancelled upon separation Sep 2025 |
| 6 | NXR-009 | Zara Park | Founding Researcher | Employee | US | Campbell, CA | 494,445 | 4.884% | ISO | $150,000 | Yes | 11/20/2025 | $0.10 | 09/17/2025 | 4-year, 1-year cliff | Complete | | Founding grant; certain options vested immediately on grant date per founder agreement; largest ISO grant in pool |
| 7 | NXR-015 | James Kowalski | Software Engineer | Employee | US | San Francisco, CA | 22,500 | 0.222% | ISO | $150,000 | No | 11/12/2025 | | 09/29/2025 | 4-year, 1-year cliff | Pending Board Approval | 189 | ISO grant; board consent obtained but Carta entry still pending |
| 8 | NXR-039 | Zara Torres | Founding Researcher | Employee | US | San Francisco, CA | 98,889 | 0.977% | NSO | $180,000 | Yes | 11/17/2025 | $0.50 | 10/02/2025 | 4-year, 1-year cliff | Complete | | Founding grant; certain options vested immediately on grant date per founder agreement |
| 9 | NXR-047 | Mateo Tanaka | Chief Operating Officer | Employee | US | San Mateo, CA | 253,105 | 2.500% | Restricted Stock | N/A | Yes | 11/26/2025 | | 10/02/2025 | 4-year, 1-year cliff | Complete | | Restricted stock grant under equity plan; COO co-founder; held under separate stock restriction agreement |
| 10 | NXR-017 | Ava Kowalski | Executive Administrator | Employee | US | San Jose, CA | 9,889 | 0.098% | ISO | $130,000 | No | 11/12/2025 | | 10/14/2025 | 4-year, 1-year cliff | Pending Board Approval | 154 | ISO grant; compensation subsequently increased to $130,000 per January 2026 addendum |
| 11 | NXR-043 | Harper Park | ML Researcher | Employee | US | San Francisco, CA | 35,173 | 0.347% | ISO | $120,000 | No | 11/12/2025 | | 11/12/2025 | 4-year, 1-year cliff | Pending Board Approval | 94 | Board consent obtained Nov 2025; Carta entry pending 409A confirmation |
| 12 | NXR-054 | Isabella Park | Advisor | Advisor | US | Seattle, WA | 98,888 | 0.977% | NSO | N/A | Yes | 11/23/2025 | $0.25 | 11/23/2025 | 1/24 monthly, 3-month cliff | Complete | | Advisor grant; non-standard vesting — 1/24 per month with 3-month cliff per advisory agreement |
| 13 | NXR-019 | Isabella Johansson | Founding Engineer | Employee | US | San Francisco, CA | 10,124 | 0.100% | ISO | $180,000 | Yes | 01/28/2026 | $1.50 | 12/31/2025 | 4-year, 1-year cliff | Complete | | Fully approved and entered in Carta; exercise price set per Dec 2025 409A |
| 14 | NXR-049 | Ingrid Walsh | Founding Researcher | Employee | US | Seattle, WA | 5,062 | 0.050% | ISO | $130,000 | No | TBD | | 12/31/2025 | 4-year, 1-year cliff | Pending Board Approval | 96 | Compensation to be reduced to $130,000 effective April 2026 per salary review |
| 15 | NXR-047 | Mateo Tanaka | Chief Operating Officer | Employee | US | San Mateo, CA | 75,000 | 0.741% | ISO | N/A | Yes | 01/28/2026 | $1.50 | 01/06/2026 | 4-year, 1-year cliff | Complete | | ISO grant issued upon formal COO employment start; separate from restricted stock co-founder grant in row 9 |
| 16 | NXR-036 | Noah Diallo | ML Researcher | Employee | US | Ann Arbor, MI | 45,000 | 0.444% | NSO | $130,000 | Yes | 11/17/2025 | $0.50 | 01/12/2026 | 4-year, 1-year cliff | Complete | | NSO per employment classification; fully approved and in Carta |
| 17 | NXR-013 | Harper Russo | Member of Technical Staff | Employee | UK | London, UK | 10,124 | 0.100% | NSO | £180,000 | No | TBD | | 01/17/2026 | 4-year, 1-year cliff | Pending Board Approval | 67 | UK entity — NSO required per local tax treatment; Carta entry pending board consent |
| 18 | NXR-038 | Charlotte Reyes | Business Operations Lead | Employee | UK | London, UK | 5,062 | 0.050% | NSO | £110,000 | No | TBD | | 01/22/2026 | 4-year, 1-year cliff | Pending Board Approval | 54 | UK entity — NSO required; compensation includes London cost-of-living adjustment |
| 19 | NXR-050 | Olivia Brennan | Chief of Staff | Employee | US | San Francisco, CA | 26,581 | 0.263% | ISO | $130,000 | No | TBD | | 02/03/2026 | 4-year, 1-year cliff | Pending Board Approval | 42 | Equity terms finalised Feb 2026; board approval scheduled next consent round |
| 20 | NXR-037 | Aiden Russo | Consultant | Consultant | US | New York, NY | 5,062 | 0.050% | NSO | $21,917/mo | No | TBD | | | N/A | Pending Board Approval | 178 | Non-employee consultant grant; $21,917/month consulting fee; vesting TBD pending board |
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| 22 | | | | | | | | | | | | | | | | | | |
| 23 | | Cap Table Summary | Shares | Notes | | | | | | | | | | | | | | |
| 24 | | Common Stock | 8,000,000 | | | | | | | | | | | | | | | |
| 25 | | Series FF Preferred Stock | 888,888 | | | | | | | | | | | | | | | |
| 26 | | Stock Plan (option pool) | 1,235,325 | | | | | | | | | | | | | | | |
| 27 | | Total Fully Diluted | 10,124,213 | | | | | | | | | | | | | | | |
| 27 | | | | | | | | | | | | | | | | | | |
| 28 | | Option Pool Breakdown | Shares | Notes | | | | | | | | | | | | | | |
| 29 | | Reserved under option pool | 1,235,325 | Total shares authorized under the plan | | | | | | | | | | | | | | |
| 30 | | Granted (board approved) | 1,001,686 | Fully approved — entered in Carta | | | | | | | | | | | | | | |
| 31 | | Promised (pending approval) | 119,453 | Offered in letters — board approval pending | | | | | | | | | | | | | | |
| 32 | | Granted + Promised | 1,121,139 | | | | | | | | | | | | | | | |
| 33 | | Remaining unallocated | 114,186 | Available headroom in the pool | | | | | | | | | | | | | | |
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| 36 | | Tracker Snapshot | Count | | | | | | | | | | | | | | | |
| 37 | | Total employees in tracker | 19 | | | | | | | | | | | | | | | |
| 38 | | Employees with equity grants | 15 | | | | | | | | | | | | | | | |
| 39 | | Grants complete (in Carta) | 7 | | | | | | | | | | | | | | | |
| 40 | | Grants pending board approval | 8 | | | | | | | | | | | | | | | |
| 41 | | Pending grants > 90 days old | 5 | | | | | | | | | | | | | | | |
| 42 | | No equity / N/A (founders, interns) | 4 | | | | | | | | | | | | | | | |
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