Director John Milligan receives 223,492 options at PacBio (PACB)

Rhea-AI Filing Summary

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. director John F. Milligan reported a grant of 223,492 stock options. The options have an exercise price of $1.58 per share, vest monthly over one year or earlier at the next annual stockholder meeting, and expire on June 3, 2036.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider MILLIGAN JOHN F

Role null

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

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

Footnotes (1)

1. [object Object]

Key Figures

Options granted: 223,492 options Exercise price: $1.58 per share Underlying shares: 223,492 shares +3 more

6 metrics

Options granted 223,492 options Stock Option grant reported on Form 4

Exercise price $1.58 per share Exercise price for PACB stock options

Underlying shares 223,492 shares Common Stock underlying granted options

Expiration date June 3, 2036 Option expiration for this grant

Vesting period 1 year monthly Monthly vesting over one year or earlier at next annual meeting

Shares after transaction 223,492 options Total derivative holdings following the grant

Key Terms

Stock Option, exercise price, expiration date, Common Stock, +1 more

5 terms

Stock Option financial

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

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

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.

expiration date financial

"expiration_date: "2036-06-03T00:00:00.000Z""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

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.

vest monthly financial

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

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Form 4 Insider Transactions: What Each Field Means →

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^*

MILLIGAN JOHN F

(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)

FAQ

What insider transaction did PACB director John F. Milligan report?

John F. Milligan reported receiving a grant of 223,492 stock options in PACIFIC BIOSCIENCES OF CALIFORNIA, INC. This is a compensation-related award, not an open-market trade, and was reported on a Form 4 as a derivative acquisition.

How many PACB stock options were granted to John F. Milligan?

He was granted 223,492 stock options tied to PACB common stock. These options give him the right to buy the same number of shares if he chooses to exercise them in the future under the specified terms and schedule.

What is the exercise price and expiration date of John F. Milligan’s PACB options?

The options have an exercise price of $1.58 per share and expire on June 3, 2036. This means he can buy PACB common stock at $1.58 any time before the expiration, once the options have vested.

How do the PACB stock options granted to John F. Milligan vest?

The options vest monthly over one year, on the same day of each month as the grant date. Vesting can also complete earlier on the date of the next annual stockholder meeting, if that occurs sooner, provided he continues serving as a director.

Did John F. Milligan buy PACB shares on the open market?

No, the filing shows a grant of stock options at a price of $0.00 per option. This is a compensation award, not an open-market purchase or sale of existing PACB common stock, and reflects an acquisition of derivative securities.

How many PACB derivative securities does John F. Milligan hold after this grant?

After this grant, John F. Milligan holds 223,492 stock options directly. Each option relates to one share of PACB common stock, so the total derivative position matches the number of underlying shares covered by the award.