Omid Farokhzad - 09 Dec 2025 Form 4 Insider Report for Seer, Inc. (SEER)

Role: CEO AND CHAIR, Director
Signature: /s/ David Horn, by power of attorney
Issuer symbol: SEER
Transactions as of: 09 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 11 Dec 2025, 20:38:38 UTC
Previous filing: 21 Nov 2025
Next filing: 05 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Farokhzad Omid	CEO AND CHAIR, Director	C/O SEER, INC., 3800 BRIDGE PARKWAY, SUITE 102, REDWOOD CITY	/s/ David Horn, by power of attorney	11 Dec 2025	0001586852

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SEER	Class A Common Stock	Conversion of derivative security		+1,438,057	+116%		2,676,287	09 Dec 2025	Direct	F1
transaction	SEER	Class A Common Stock	Conversion of derivative security		+2,117,138			2,117,138	09 Dec 2025	See footnote	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SEER	Class B Common Stock	Conversion of derivative security	$0	-1,438,057	-100%	$0.000000	0	09 Dec 2025	Class A Common Stock	1,438,057		Direct	F1, F3
transaction	SEER	Class B Common Stock	Conversion of derivative security	$0	-2,117,138	-100%	$0.000000	0	09 Dec 2025	Class A Common Stock	2,117,138		See footnote	F1, F2
holding	SEER	Class B Common Stock						0	09 Dec 2025	Class A Common Stock	0		See footnote	F1, F4, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Pursuant to the Issuer's amended and restated certificate of incorporation, as amended, each share of the Issuer's Class B Common Stock automatically converted into one share of Class A Common Stock at the close of business on the first day following the fifth anniversary of the closing of the Issuer's initial public offering.
F2	The reported shares are held of record by SAF-BND Trust for which the reporting person's spouse serves as trustee. The reporting person disclaims beneficial ownership of these securities, except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
F3	Includes 1,303,478 shares previously reported as held of record by Dynamics Group LLC for which the reporting person serves as the sole member ("Dynamics") which were re-registered on September 25, 2024 and are now held of record by the reporting person.
F4	Excludes 1,303,478 shares previously reported as held of record by Dynamics which were re-registered on September 25, 2024 and are now held of record by the reporting person.
F5	The reported shares were held of record by Dynamics.