SCHEDULE 13D

SEER INC

Class A Common Stock, par value $0.00001 per share · CUSIP: 81578P106

Event date: 2026-02-12

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

• Radoff Family FoundationReported CIK 0001496916

  Shares: 500,000.00 · Class: 0.9%

• Radoff Bradley LouisReported CIK 0001380585

  Shares: 2,100,000.00 · Class: 3.7%

• JEC II Associates, LLCReported CIK 0001477326

  Shares: 1,050,000.00 · Class: 1.9%

• The MOS Trust

  Shares: 215,000.00 · Class: 0.4%

• MOS PTC, LLC

  Shares: 215,000.00 · Class: 0.4%

• Torok MichaelReported CIK 0001967237

  Shares: 1,550,000.00 · Class: 2.8%

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