Form 4 for SEER Seer, Inc.

Accepted 2025-12-11 00:00:00 ET · period of report 2025-12-09 · accession 0001117003-25-000005 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
DI	2025-12-11	2025-12-09	SEER	MCGUIRE TERRANCE	Dir	C - Cnv Deriv	—	+4,088	215.1K	+2%	—
DI	2025-12-11	2025-12-09	SEER	MCGUIRE TERRANCE	Dir	C - Cnv Deriv	$0.00	-4,088	0	-100%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Class A Common Stock	2025-12-09	C	A	4,088	—	215,070	I See footnote	—	—	(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 Strong Bridge, LLC for which the Reporting Person serves as an operating manager.
2	Derivative	Class B Common Stock	2025-12-09	C	D	4,088	$0.00	0	I See footnote	— · — to —	4,088 Class A Common Stock	(F2) The reported shares are held of record by Strong Bridge, LLC for which the Reporting Person serves as an operating manager. (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.