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    PRESIDENT & CFO Horn David R. was granted 79,000 shares, increasing direct ownership by 18% to 509,005 units (SEC Form 4)

    2/5/26 6:54:29 PM ET
    $SEER
    Biotechnology: Laboratory Analytical Instruments
    Industrials
    Get the next $SEER alert in real time by email
    SEC FORM 4 SEC Form 4
    FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
    or Section 30(h) of the Investment Company Act of 1940
    OMB APPROVAL
    OMB Number: 3235-0287
    Estimated average burden
    hours per response: 0.5
      
    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
      
    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
    1. Name and Address of Reporting Person*
    Horn David R.

    (Last) (First) (Middle)
    C/O SEER, INC.
    3800 BRIDGE PARKWAY, SUITE 102

    (Street)
    REDWOOD CITY CA 94065

    (City) (State) (Zip)
    2. Issuer Name and Ticker or Trading Symbol
    Seer, Inc. [ SEER ]
    5. Relationship of Reporting Person(s) to Issuer
    (Check all applicable)
    Director 10% Owner
    X Officer (give title below) Other (specify below)
    PRESIDENT & CFO
    3. Date of Earliest Transaction (Month/Day/Year)
    02/03/2026
    4. If Amendment, Date of Original Filed (Month/Day/Year)
    6. Individual or Joint/Group Filing (Check Applicable Line)
    X Form filed by One Reporting Person
    Form filed by More than One Reporting Person
    Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
    1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V Amount (A) or (D) Price
    Class A Common Stock 02/03/2026 A 79,000(1) A $0 509,005 D
    Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
    (e.g., puts, calls, warrants, options, convertible securities)
    1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
    Employee Stock Option (right to buy) $1.79 02/03/2026 A 119,000 (2) 02/03/2036 Class A Common Stock 119,000 $0 119,000 D
    Explanation of Responses:
    1. The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments beginning on May 15, 2026.
    2. One-fourth of the shares subject to the option vest on February 3, 2027 and 1/48th of the shares vest monthly thereafter.
    /s/ David Horn 02/05/2026
    ** Signature of Reporting Person Date
    Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
    * If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
    ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
    Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
    Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
    Get the next $SEER alert in real time by email

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