PacBio director awarded 223,492 stock options

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. director Kathy Ordonez received a grant of stock options covering 223,492 shares of common stock.

Rhea-AI Filing Summary

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. director Kathy Ordonez received a grant of stock options covering 223,492 shares of common stock. The options have an exercise price of $1.58 per share, were granted at no cost, and expire on June 3, 2036.

These options vest monthly over one year, or earlier on the date of the next annual meeting of stockholders after the grant date, as long as she continues to serve as a director through each vesting date. Following this grant, her reported stock option holdings from this award total 223,492 shares.

Insider Trade Summary

Grant/Award: 223,492 shares

Grant/Award 1 txn

Insider ORDONEZ KATHY

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy)	223,492	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 223,492 contracts (Direct)

Footnotes (1)

1. F1. The shares subject to the option will vest monthly over one (1) year, on the same day of the month as the date of grant or, if earlier, on the date of the next annual meeting of the Company's stockholders occurring after the date of grant, provided such Reporting Person continues to serve as a director through the applicable vesting dates.

Key Figures

Stock options granted: 223,492 shares Exercise price: $1.58 per share Expiration date: June 3, 2036 +2 more

5 metrics

Stock options granted 223,492 shares Grant of stock options to director on June 3, 2026

Exercise price $1.58 per share Exercise price for the granted stock options

Expiration date June 3, 2036 Option term end for this grant

Shares underlying options 223,492 shares Common stock underlying the derivative award

Shares held after transaction 223,492 options Total derivative holdings from this award following grant

Key Terms

Stock Option (right to buy), grant/award acquisition, exercise price, vest monthly, +1 more

5 terms

Stock Option (right to buy) financial

"security_title: "Stock Option (right to buy)""

grant/award acquisition financial

"transaction_action: "grant/award acquisition""

exercise price financial

"conversion_or_exercise_price: "1.5800""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vest monthly financial

"The shares subject to the option will vest monthly over one (1) year"

Common Stock financial

"underlying_security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did PACB director Kathy Ordonez report?

Kathy Ordonez reported receiving a grant of stock options for 223,492 shares of Pacific Biosciences common stock. The options were granted at no cost, represent compensation, and give her the right to buy shares at a fixed exercise price of $1.58.

What is the exercise price of Kathy Ordonez’s new PACB stock options?

The new stock options have an exercise price of $1.58 per share. This means she can purchase Pacific Biosciences common stock at $1.58 per share once options vest, regardless of the market price at that time, until the options expire.

How many PACB shares are covered by Kathy Ordonez’s option grant?

The option grant covers 223,492 shares of common stock. These options give her the right to buy that many PACB shares once vested and exercised, subject to the one-year monthly vesting schedule or earlier vesting at the next annual stockholder meeting.

When do Kathy Ordonez’s PACB stock options vest?

The options vest monthly over one year starting from the grant date. Vesting can also complete earlier on the date of the next annual stockholders’ meeting, as long as she continues serving as a director through the relevant vesting dates.

When do Kathy Ordonez’s PACB stock options expire?

The stock options expire on June 3, 2036. She can exercise vested options any time before that expiration date, subject to Pacific Biosciences’ plan rules and her continued eligibility under the terms of the grant and board service conditions.

Did Kathy Ordonez buy or sell PACB shares in the market?

The filing shows a grant of stock options, not an open-market buy or sell of shares. She acquired derivative rights to purchase PACB stock at $1.58, reflecting equity compensation rather than a discretionary market transaction in existing common shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/04/2026 - 05:20 PM EDT Learn about SEC filing dates

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^*

ORDONEZ KATHY

(Last) (First) (Middle)

PACIFIC BIOSCIENCES OF CALIFORNIA, INC.

1305 O'BRIEN DRIVE

(Street)

MENLO PARK CALIFORNIA 94025

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PACIFIC BIOSCIENCES OF CALIFORNIA, INC. [ PACB ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

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
Stock Option (right to buy)	$1.58	06/03/2026		A		223,492		07/03/2026(1)	06/03/2036	Common Stock	223,492	$0	223,492	D

Explanation of Responses:

1. The shares subject to the option will vest monthly over one (1) year, on the same day of the month as the date of grant or, if earlier, on the date of the next annual meeting of the Company's stockholders occurring after the date of grant, provided such Reporting Person continues to serve as a director through the applicable vesting dates.

Remarks:

	/s/ Brett Atkins, Attorney-in-fact	06/04/2026
	** 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.
* Form 4: SEC 1474 (03-26)