SCHEDULE 13D/A

N/A

Common Stock, $0.0001 par value per share · CUSIP: 92673K108

Event date: 2025-08-05

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Atlas Venture Fund XII, L.P.Reported CIK 0001812049

  Shares: 0.00 · Class: 0.0%

• Atlas Venture Associates XII, L.P.Reported CIK 0001845875

  Shares: 0.00 · Class: 0.0%

• Atlas Venture Associates XII, LLCReported CIK 0001845871

  Shares: 0.00 · Class: 0.0%

• Atlas Venture Opportunity Fund I, L.P.Reported CIK 0001759241

  Shares: 0.00 · Class: 0.0%

• Atlas Venture Associates Opportunity I, L.P.Reported CIK 0001780065

  Shares: 0.00 · Class: 0.0%

• Atlas Venture Associates Opportunity I, LLCReported CIK 0001780066

  Shares: 0.00 · Class: 0.0%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.