James R. Gibson II - 27 Feb 2026 Form 4 Insider Report for PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB)

Role: Chief Financial Officer
Signature: /s/ Michele Farmer, Attorney-in-fact
Issuer symbol: PACB
Transactions as of: 27 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 03 Mar 2026, 18:14:43 UTC
Previous filing: 02 Apr 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Gibson James R II	Chief Financial Officer	PACIFIC BIOSCIENCES OF CALIFORNIA, INC., 1305 O'BRIEN DRIVE, MENLO PARK	/s/ Michele Farmer, Attorney-in-fact	03 Mar 2026	0001384133

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PACB	Common Stock	Award	$0	+333,848	+33%	$0.000000	1,333,848	27 Feb 2026	Direct	F1

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	PACB	Stock Option (right to buy)	Award	$0	+667,696		$0.000000	667,696	27 Feb 2026	Common Stock	667,696	$1.68	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will vest in equal annual installments on February 15 of each of 2027, 2028, and 2029, subject to the Reporting Person's continued status as a service provider through the applicable vesting dates.
F2	The shares subject to the option will vest in 36 equal monthly installments beginning on March 27, 2026, subject to the Reporting Person's continued status as a service provider through the applicable vesting dates.

Remarks:

Chief Financial Officer