SEER Form 3 Filed — Director Reports Zero Beneficial Ownership

Rhea-AI Filing Summary

Seer, Inc. reported an Initial Statement of Beneficial Ownership dated 09/02/2025 for reporting person Ro Isaac, filed on 09/03/2025 by power of attorney. The form lists the reporting person as a Director and indicates that no securities are beneficially owned by this individual at the time of the report. The filing is a standalone Form 3 filed by one reporting person and contains no entries in Table I (non-derivative) or Table II (derivative) because the explanation states explicitly that no securities are held. This means the director has not reported direct or indirect ownership of the issuer's stock on this initial SEC Section 16 filing.

Positive

• Clear disclosure that the Form 3 was filed and signed by power of attorney on 09/03/2025
• Reporting role identified as Director, which clarifies the individual's relationship to the company

Negative

• No equity ownership reported by the director, meaning there is no immediate alignment via stock ownership
• Absent holdings limit insight into potential insider transactions until future filings appear

Insights

Corporate Governance Analyst

Initial director filing shows No Shares reported.

The filing records a director-level Form 3 with the reporting date of 09/02/2025 and an attestation signed by power of attorney on 09/03/2025. The document explicitly states that no securities are beneficially owned, leaving both Table I and Table II empty.

This is a low-impact governance item: it confirms the director does not hold equity at filing time, which affects disclosure of future Section 16 transactions and short-swing profit rules. Monitor future Section 16 filings for any subsequent acquisitions or option grants that would change beneficial ownership.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Ro Isaac

(Last) (First) (Middle)

C/O SEER, INC.

3800 BRIDGE PARKWAY, SUITE 102

(Street)

REDWOOD CITY CA 94065

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/02/2025

3. Issuer Name and Ticker or Trading Symbol
Seer, Inc. [ SEER ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ David Horn, by power of attorney	09/03/2025
	** 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 5 (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.

FAQ

What does Seer, Inc.'s (SEER) Form 3 filed on 09/03/2025 disclose?

The Form 3 discloses that reporting person Ro Isaac is a Director and that no securities are beneficially owned as of the event date 09/02/2025.

Who signed Seer, Inc.'s Form 3 for Ro Isaac?

The filing is signed /s/ David Horn, by power of attorney on 09/03/2025, indicating it was filed under power of attorney.

Does the Form 3 for SEER show any stock options or derivatives for the reporting person?

No. Both Table I (non-derivative) and Table II (derivative) contain no entries and the explanation states no securities are beneficially owned.

Is the Form 3 for SEER a joint filing or by one reporting person?

The form is marked as a filing by one reporting person.

What is the significance of a director filing a Form 3 with no holdings?

It establishes the director's starting disclosure position: there are no reportable holdings initially, and any future acquisitions will require additional Section 16 filings.