Frazier Life Sciences II sponsor holds 1.68M shares

The Class B shares will convert one-for-one into Class A shares around the initial business combination, or earlier at the Reporting Person’s option, subject to adjustment.

Rhea-AI Filing Summary

Frazier Life Sciences Holdings II, LLC, the sponsor of Frazier Life Sciences Acquisition Corp. II (FLSC), held 1,683,749 Class B ordinary shares as of October 13, 2026. The shares will automatically convert into Class A ordinary shares one-for-one, subject to adjustment, immediately prior to, concurrently with or immediately following consummation of the initial business combination; they may convert earlier at the Reporting Person’s option. Albert Cha, FLSC’s Chief Executive Officer and the sponsor’s sole manager, is a reporting person. The reporting persons disclaim beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Cha Albert, Frazier Life Sciences Holdings II LLC, Frazier Life Sciences Public Fund, L.P., FHMLSP, L.P., FHMLSP, L.L.C.

Role Chief Executive Officer | 10% Owner | 10% Owner | 10% Owner | 10% Owner

Type	Security	Shares	Price	Value
holding	Class B ordinary shares F1, F2	--	--	--

Holdings After Transaction: Class B ordinary shares — 1,683,749 contracts (Indirect, By Frazier Life Sciences Holdings II, LLC)

Footnotes (2)

1. F1. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares immediately prior to, concurrently with or immediately following the consummation of the Issuer's initial business combination, or at any time prior thereto at the option of the Reporting Person, on a one-for-one basis, subject to adjustment, and have no expiration date.
2. F2. Securities held by Frazier Life Sciences Holdings II, LLC ("Sponsor"). Albert Cha is the sole manager of Sponsor, and Frazier Life Sciences Public Fund, L.P. is its sole equity holder. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. The Reporting Persons disclaim beneficial ownership of such shares except to the extent of its or his pecuniary interest therein, if any.

Key Figures

Class B ordinary shares held: 1,683,749 shares Conversion ratio: 1 Class A ordinary share per 1 Class B ordinary share

2 metrics

Class B ordinary shares held 1,683,749 shares Held indirectly by Frazier Life Sciences Holdings II, LLC as of October 13, 2026

Conversion ratio 1 Class A ordinary share per 1 Class B ordinary share Subject to adjustment

Key Terms

initial business combination, beneficial ownership, pecuniary interest, one-for-one basis

4 terms

initial business combination technical

"consummation of the Issuer's initial business combination"

An initial business combination is the deal in which a special-purpose acquisition company (SPAC) merges with or acquires an operating business to bring that business onto public markets. Think of the SPAC as an empty shell that raises money from investors, then uses that cash to buy a private company—this transaction turns the private company into a public one and often changes its ownership, valuation, and access to capital, so investors should watch for shifts in risk, future growth prospects, and shareholder rights.

beneficial ownership regulatory

"disclaim beneficial ownership of such shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"to the extent of its or his pecuniary interest therein"

one-for-one basis technical

"on a one-for-one basis, subject to adjustment"

FAQ

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

How many shares did FLSC’s sponsor report holding?

Frazier Life Sciences Holdings II, LLC held 1,683,749 Class B ordinary shares as of October 13, 2026. The shares are convertible into Class A ordinary shares on a one-for-one basis, subject to adjustment.

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

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Available on EDGAR 10/14/2026 - 08:16 PM EDT Accepted by SEC EDGAR 10/13/2026 - 07:26 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Cha Albert

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
10/13/2026

3. Issuer Name and Ticker or Trading Symbol
Frazier Life Sciences Acquisition Corp. II [ FLSC ]

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B ordinary shares	(1)	(1)	Class A ordinary shares	1,683,749	(1)	I	By Frazier Life Sciences Holdings II, LLC(2)

1. Name and Address of Reporting Person^*

Cha Albert

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Frazier Life Sciences Holdings II LLC

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Frazier Life Sciences Public Fund, L.P.

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

FHMLSP, L.P.

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

FHMLSP, L.L.C.

(Last) (First) (Middle)

1001 PAGE MILL ROAD

BUILDING 4, SUITE 200B

(Street)

PALO ALTO CALIFORNIA 93404

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares immediately prior to, concurrently with or immediately following the consummation of the Issuer's initial business combination, or at any time prior thereto at the option of the Reporting Person, on a one-for-one basis, subject to adjustment, and have no expiration date.

2. Securities held by Frazier Life Sciences Holdings II, LLC ("Sponsor"). Albert Cha is the sole manager of Sponsor, and Frazier Life Sciences Public Fund, L.P. is its sole equity holder. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. The Reporting Persons disclaim beneficial ownership of such shares except to the extent of its or his pecuniary interest therein, if any.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Albert Cha	10/13/2026
	FRAZIER LIFE SCIENCES HOLDINGS II, LLC, By: /s/ Albert Cha, Manager	10/13/2026
	FRAZIER LIFE SCIENCES PUBLIC FUND, L.P., By: /s/ Albert Cha, Managing Member of General Partner of General Partner	10/13/2026
	FHMLSP, L.P., By: /s/ Albert Cha, Managing Member of General Partner	10/13/2026
	FHMLSP, L.L.C., By: /s/ Albert Cha, Managing Member	10/13/2026
	** 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 5 (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 3: SEC 1473 (03-26)