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person · Reporting owner

Topper James N

Disclosed activity across 16 companies

Tapewire entity
26591
SEC CIK
0001341382

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ANAPTYSBIO, INCANAB · Entity 4640Director · 10% ownerJanuary 06, 2023January 11, 2023
Allena Pharmaceuticals, Inc.ALNA · Entity 130904Director · 10% ownerNovember 17, 2020November 18, 2020
Aptinyx Inc.APTX · Entity 120922DirectorMarch 31, 2020April 02, 2020
Attovia Therapeutics, Inc.ATTO · Entity 4984DirectorAugust 04, 2026August 04, 2026
Frazier Lifesciences Acquisition CorpFLAC · Entity 122080Director · Chief Executive OfficerDecember 08, 2020December 17, 2020
MBX Biosciences, Inc.MBX · Entity 424710% ownerSeptember 26, 2025September 30, 2025
Mirum Pharmaceuticals, Inc.MIRM · Entity 241610% ownerJuly 22, 2019July 24, 2019
NewAmsterdam Pharma Co N.V.NAMS · Entity 1826DirectorSeptember 15, 2025September 17, 2025
Passage BIO, Inc.PASG · Entity 782910% ownerMarch 03, 2020March 03, 2020
Phathom Pharmaceuticals, Inc.PHAT · Entity 5177Director · 10% ownerMay 19, 2026May 21, 2026
Sierra Oncology, Inc.SRRA · Entity 125698Director · 10% ownerFebruary 14, 2017February 16, 2017

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ANAPTYSBIO, INC

Report date January 06, 2023 · Filed January 11, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $23.23 · Expires 2033-01-05Direct10,600 Reported balance After 2023-01-06 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2023-01-06 · Grant · Acquired 10,600 · Balance 10,600

F1: The stock option vests as to 1/12 of the total shares monthly commencing on February 6, 2023 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect3,900 Reported balance After 2023-01-06 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2023-01-06 · Grant · Acquired 3,900 · Balance 3,900

F2: Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

F3: The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2024 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The stock option vests as to 1/12 of the total shares monthly commencing on February 6, 2023 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

F2: Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

F3: The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2024 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Allena Pharmaceuticals, Inc.

Report date November 17, 2020 · Filed November 18, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.45 · Expires 2030-11-16Direct14,000 Reported balance After 2020-11-17 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2020-11-17 · Grant · Acquired 14,000 · Balance 14,000

F1: Stock option shall vest in full (i.e., in single installment) upon the earlier to occur of the first anniversary of the date of grant or the date of the next annual meeting of shareholders.

Filing footnotes · ownership attribution and instrument terms

F1: Stock option shall vest in full (i.e., in single installment) upon the earlier to occur of the first anniversary of the date of grant or the date of the next annual meeting of shareholders.

Aptinyx Inc.

Report date March 31, 2020 · Filed April 02, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee Footnote3,195,055 Reported balance After 2020-03-31 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2020-03-31 · Grant · Acquired 4,976 · Balance 3,195,055

F1: The shares were issued to the Reporting Person, who elected to take unrestricted shares in lieu of cash compensation for services as a director, pursuant to the Issuer's nonemployee director compensation plan. The number of shares issued was determined by dividing the cash compensation otherwise payable with respect to the quarter by the price of a share on the date of the grant.

F2: The shares are held directly by Frazier Life Sciences VIII, L.P. ("FLS-VIII"). FHM Life Sciences VIII, L.P. ("FHM-VIII L.P.") serves as the sole general partner of FLS-VIII and owns no shares directly. FHM Life Sciences VIII, LLC ("FHM-VIII LLC") serves as the sole general partner of FHM-VIII L.P. and owns no shares directly. James N. Topper and Patrick Heron are members of FHM-VIII LLC and share voting and dispositive power over the shares held by FLS-VIII; however, they disclaim beneficial ownership of the shares held by FLS-VIII except to the extent of their pecuniary interests therein.

Filing footnotes · ownership attribution and instrument terms

F1: The shares were issued to the Reporting Person, who elected to take unrestricted shares in lieu of cash compensation for services as a director, pursuant to the Issuer's nonemployee director compensation plan. The number of shares issued was determined by dividing the cash compensation otherwise payable with respect to the quarter by the price of a share on the date of the grant.

F2: The shares are held directly by Frazier Life Sciences VIII, L.P. ("FLS-VIII"). FHM Life Sciences VIII, L.P. ("FHM-VIII L.P.") serves as the sole general partner of FLS-VIII and owns no shares directly. FHM Life Sciences VIII, LLC ("FHM-VIII LLC") serves as the sole general partner of FHM-VIII L.P. and owns no shares directly. James N. Topper and Patrick Heron are members of FHM-VIII LLC and share voting and dispositive power over the shares held by FLS-VIII; however, they disclaim beneficial ownership of the shares held by FLS-VIII except to the extent of their pecuniary interests therein.

Attovia Therapeutics, Inc.

Report date August 04, 2026 · Filed August 04, 2026

This filing explicitly reported no securities owned.

Frazier Lifesciences Acquisition Corp

Report date December 08, 2020 · Filed December 17, 2020 · Amendment

Jointly reported with Frazier Lifesciences Sponsor LLC, Frazier Life Sciences X, L.P., FHMLS X, L.P., FHMLS X, L.L.C., Heron Patrick J

Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class B Ordinary SharesSEC Table II · derivative / convertible securityDirectNot disclosed Reported balance Holding disclosure · report date 2020-12-08 · row 1 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 1 · Balance Not disclosed

F1: As described in the Issuer's Registration Statement on Form S-1 (File No. 333-250858) (the "Registration Statement") under the heading "Description of Securities," the Class B Ordinary Shares will automatically convert into Class A Ordinary Shares of the Issuer at the time of the Issuer's initial business combination and have no expiration date. The shares reported herein include up to 450,000 Class B Ordinary Shares that are subject to forfeiture if the underwriter of the Issuer's initial public offering does not exercise in full its option to purchase additional units, as described in the Registration Statement.

F2: Frazier Lifesciences Sponsor LLC is the record holder of the shares reported herein. Frazier Life Sciences X, L.P. is the sole member of Frazier Lifesciences Sponsor LLC. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. Mr. Topper is the Chief Executive Officer and Chairman of the Board of Directors (the "Board") of the Issuer.

F3: By virtue of Mr. Topper's representation on the Issuer's Board, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the reporting persons may be deemed directors by deputization of the Issuer. As such, each of Frazier Life Sciences X, L.P., FHMLS X, L.P., FHMLS X, L.L.C., Mr. Topper and Mr. Heron may be deemed to have or share beneficial ownership of the common stock held directly by Frazier Lifesciences Sponsor LLC. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: As described in the Issuer's Registration Statement on Form S-1 (File No. 333-250858) (the "Registration Statement") under the heading "Description of Securities," the Class B Ordinary Shares will automatically convert into Class A Ordinary Shares of the Issuer at the time of the Issuer's initial business combination and have no expiration date. The shares reported herein include up to 450,000 Class B Ordinary Shares that are subject to forfeiture if the underwriter of the Issuer's initial public offering does not exercise in full its option to purchase additional units, as described in the Registration Statement.

F2: Frazier Lifesciences Sponsor LLC is the record holder of the shares reported herein. Frazier Life Sciences X, L.P. is the sole member of Frazier Lifesciences Sponsor LLC. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. Mr. Topper is the Chief Executive Officer and Chairman of the Board of Directors (the "Board") of the Issuer.

F3: By virtue of Mr. Topper's representation on the Issuer's Board, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the reporting persons may be deemed directors by deputization of the Issuer. As such, each of Frazier Life Sciences X, L.P., FHMLS X, L.P., FHMLS X, L.L.C., Mr. Topper and Mr. Heron may be deemed to have or share beneficial ownership of the common stock held directly by Frazier Lifesciences Sponsor LLC. Each such entity or person disclaims any such beneficial ownership of such securities except to the extent of their pecuniary interest therein.

MBX Biosciences, Inc.

Report date September 26, 2025 · Filed September 30, 2025

Jointly reported with Heron Patrick J, FHMLS X, L.P., FHMLS X, L.L.C., Frazier Life Sciences X, L.P.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences X, L.P.5,219,440 Reported balance After 2025-09-26 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2025-09-26 · Purchase · Acquired 666,666 · Balance 5,219,440

F1: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Mirum Pharmaceuticals, Inc.

Report date July 22, 2019 · Filed July 24, 2019

Jointly reported with Frazier Life Sciences IX, L.P., FHMLS IX, L.P., FHMLS IX, L.L.C.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect3,566,912 Last balance in matching sequence After 2019-07-22 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2019-07-22 · Conversion · Acquired 3,116,912 · Balance 3,116,912

F1: In connection with the Issuer's initial public offering, each share of the Issuer's Series A Preferred Stock automatically converted into 0.125 shares of the Issuer's Common Stock. The shares have no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. James N. Topper and Patrick Heron are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Row 2 · 2019-07-22 · Purchase · Acquired 450,000 · Balance 3,566,912

F3: The shares were purchased in the Issuer's initial public offering.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. James N. Topper and Patrick Heron are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Series A Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2019-07-22 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2019-07-22 · Conversion · Disposed 24,935,300 · Balance 0

F1: In connection with the Issuer's initial public offering, each share of the Issuer's Series A Preferred Stock automatically converted into 0.125 shares of the Issuer's Common Stock. The shares have no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. James N. Topper and Patrick Heron are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: In connection with the Issuer's initial public offering, each share of the Issuer's Series A Preferred Stock automatically converted into 0.125 shares of the Issuer's Common Stock. The shares have no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. James N. Topper and Patrick Heron are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

F3: The shares were purchased in the Issuer's initial public offering.

NewAmsterdam Pharma Co N.V.

Report date September 15, 2025 · Filed September 17, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeIndirectBy Frazier Life Sciences X, L.P.3,028,524 Reported balance After 2025-09-15 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2025-09-15 · Purchase · Acquired 660 · Balance 3,028,524

F1: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.46 to $23.75. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Ordinary SharesSEC Table I · non-derivativeIndirectBy Frazier Lifesciences Sponsor LLC3,801,000 Reported balance Holding disclosure · report date 2025-09-15 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 3,801,000

F3: The shares are held directly by Frazier Lifesciences Sponsor LLC. The sole member of Frazier Lifesciences Sponsor LLC is Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.46 to $23.75. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

F3: The shares are held directly by Frazier Lifesciences Sponsor LLC. The sole member of Frazier Lifesciences Sponsor LLC is Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Passage BIO, Inc.

Report date March 03, 2020 · Filed March 03, 2020

Jointly reported with Frazier Life Sciences IX, L.P., FHMLS IX, L.P., FHMLS IX, L.L.C.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect5,009,219 Last balance in matching sequence After 2020-03-03 transaction · row 4 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
4 source rows

Row 1 · 2020-03-03 · Conversion · Acquired 2,977,242 · Balance 2,977,242

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Row 2 · 2020-03-03 · Conversion · Acquired 1,049,175 · Balance 4,026,417

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Row 3 · 2020-03-03 · Conversion · Acquired 432,802 · Balance 4,459,219

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Row 4 · 2020-03-03 · Purchase · Acquired 550,000 · Balance 5,009,219

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Series A-1 Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2020-03-03 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2020-03-03 · Conversion · Disposed 2,977,242 · Balance 0

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Series A-2 Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2020-03-03 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2020-03-03 · Conversion · Disposed 1,049,175 · Balance 0

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Series B Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2020-03-03 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2020-03-03 · Conversion · Disposed 432,802 · Balance 0

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of the issuer's Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock automatically converted into one (1) share of the issuer's Common Stock immediately upon the closing of the issuer's initial public offering on March 3, 2020.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. Patrick J. Heron and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. Each of Mr. Heron, Mr. Topper, FHMLS IX, L.P. and FHMLS IX, L.L.C. disclaim beneficial ownership of the shares held by Frazier Life Sciences IX, L.P., except to the extent of his or its pecuniary interest therein, if any.

Phathom Pharmaceuticals, Inc.

Report date May 19, 2026 · Filed May 21, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect66,718 Reported balance After 2026-05-19 transaction · row 1
1 source row

Row 1 · 2026-05-19 · Grant · Acquired 24,122 · Balance 66,718

F1: The Restricted Stock Units ("RSUs") were granted on May 19, 2026, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences X, L.P.59,403 Reported balance Holding disclosure · report date 2026-05-19 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 59,403

F2: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences IX, L.P.5,827,415 Reported balance Holding disclosure · report date 2026-05-19 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 5,827,415

F3: The shares reported herein are held of record by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. and FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. The Reporting Person is one of two managing members of FHMLS IX, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy FHMLS IX, L.L.C.1 Reported balance Holding disclosure · report date 2026-05-19 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 1

F4: The shares reported herein are held of record by FHMLS IX, L.L.C. The Reporting Person is one of two managing members of FHMLS IX, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy Topper Group III LLC3,912 Reported balance Holding disclosure · report date 2026-05-19 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 3,912

F5: The Reporting Person is a manager of Topper Group III LLC and has voting and investment power of the securities held by Topper Group III LLC.

Filing footnotes · ownership attribution and instrument terms

F1: The Restricted Stock Units ("RSUs") were granted on May 19, 2026, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

F2: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

F3: The shares reported herein are held of record by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. and FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. The Reporting Person is one of two managing members of FHMLS IX, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

F4: The shares reported herein are held of record by FHMLS IX, L.L.C. The Reporting Person is one of two managing members of FHMLS IX, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

F5: The Reporting Person is a manager of Topper Group III LLC and has voting and investment power of the securities held by Topper Group III LLC.

Sierra Oncology, Inc.

Report date February 14, 2017 · Filed February 16, 2017

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences VIII, L.P.5,925,926 Reported balance After 2017-02-14 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2017-02-14 · Purchase · Acquired 5,925,926 · Balance 5,925,926

F1: The reporting person and Patrick Heron are the managing members of FHM Life Sciences VIII, L.L.C., which is the general partner of FHM Life Sciences VIII, L.P., which is the general partner of Frazier Life Sciences VIII, L.P. ("FLSIII"), the record holder of the securities, and the reporting person may be deemed to share voting and dispositive power over the securities held by FLSIII. The reporting person disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Common StockSEC Table I · non-derivativeIndirectBy Frazier Healthcare VI, L.P.2,186,195 Reported balance Holding disclosure · report date 2017-02-14 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 2,186,195

F2: The reporting person, Alan Frazier, Nader Naini, Nathan Every and Patrick Heron are the managing members of FHM VI, LLC, which is the general partner of FHM VI, LP, which is the general partner of Frazier Healthcare VI, L.P. ("FHVI"), the record holder of the securities, and the reporting person may be deemed to share voting and dispositive power over the securities held by FHVI. The reporting person disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Filing footnotes · ownership attribution and instrument terms

F1: The reporting person and Patrick Heron are the managing members of FHM Life Sciences VIII, L.L.C., which is the general partner of FHM Life Sciences VIII, L.P., which is the general partner of Frazier Life Sciences VIII, L.P. ("FLSIII"), the record holder of the securities, and the reporting person may be deemed to share voting and dispositive power over the securities held by FLSIII. The reporting person disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F2: The reporting person, Alan Frazier, Nader Naini, Nathan Every and Patrick Heron are the managing members of FHM VI, LLC, which is the general partner of FHM VI, LP, which is the general partner of Frazier Healthcare VI, L.P. ("FHVI"), the record holder of the securities, and the reporting person may be deemed to share voting and dispositive power over the securities held by FHVI. The reporting person disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Past disclosures · reporting ended (5)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

ALPINE IMMUNE SCIENCES, INC.

Report date May 18, 2024 · Filed May 21, 2024

Section 16 reporting ended · disclosed 2024-05-21. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences VIII, L.P.0 Reported balance After 2024-05-18 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2024-05-18 · Other · Disposed 2,829,347 · Balance 0

F1: This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger (the Merger Agreement), dated April 10, 2024, among Alpine Immune Sciences, Inc., a Delaware corporation (the Company), Vertex Pharmaceuticals Incorporated, a Massachusetts corporation (Parent), and Adams Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (Merger Sub). Pursuant to the Merger Agreement, Merger Sub completed a tender offer for shares of the Companys Common Stock, par value $0.001 per share (Company Common Stock), effective May 18, 2024 (the Offer Closing), and thereafter merged with and into the Company (the Merger, and together with the Offer Closing, the Transactions), effective May 20, 2024 (the Effective Time), with the Company surviving the Merger as a wholly owned subsidiary of Parent.

F2: (Continued from Footnote 1) In connection with the consummation of the Transactions, each share of the Company Common Stock was either (x) purchased at the Offer Closing for $65.00 in cash per share (the Offer Price), without interest thereon and subject to any applicable tax withholding or (y) automatically converted in the Merger at the Effective Time into the right to receive the Offer Price in cash, without interest thereon (the Merger Consideration), subject to any applicable tax withholding.

F3: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.31 · Expires 2028-01-01Direct0 Reported balance After 2024-05-20 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2024-05-20 · Disposition to issuer · Disposed 7,650 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.09 · Expires 2029-01-01Direct0 Reported balance After 2024-05-20 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2024-05-20 · Disposition to issuer · Disposed 7,650 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.62 · Expires 2030-01-01Direct0 Reported balance After 2024-05-20 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2024-05-20 · Disposition to issuer · Disposed 7,650 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $13.45 · Expires 2031-01-03Direct0 Reported balance After 2024-05-20 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-05-20 · Disposition to issuer · Disposed 7,650 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $13.89 · Expires 2032-01-02Direct0 Reported balance After 2024-05-20 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-05-20 · Disposition to issuer · Disposed 10,000 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $7.43 · Expires 2033-01-02Direct0 Reported balance After 2024-05-20 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2024-05-20 · Disposition to issuer · Disposed 10,000 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $19.00 · Expires 2034-01-01Direct0 Reported balance After 2024-05-20 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2024-05-20 · Disposition to issuer · Disposed 17,500 · Balance 0

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F8: 1/12th of the shares subject to the option become vested and exercisable on February 2, 2024 and 1/12 of the shares subject to the option shall vest monthly thereafter.

Filing footnotes · ownership attribution and instrument terms

F1: This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger (the Merger Agreement), dated April 10, 2024, among Alpine Immune Sciences, Inc., a Delaware corporation (the Company), Vertex Pharmaceuticals Incorporated, a Massachusetts corporation (Parent), and Adams Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (Merger Sub). Pursuant to the Merger Agreement, Merger Sub completed a tender offer for shares of the Companys Common Stock, par value $0.001 per share (Company Common Stock), effective May 18, 2024 (the Offer Closing), and thereafter merged with and into the Company (the Merger, and together with the Offer Closing, the Transactions), effective May 20, 2024 (the Effective Time), with the Company surviving the Merger as a wholly owned subsidiary of Parent.

F2: (Continued from Footnote 1) In connection with the consummation of the Transactions, each share of the Company Common Stock was either (x) purchased at the Offer Closing for $65.00 in cash per share (the Offer Price), without interest thereon and subject to any applicable tax withholding or (y) automatically converted in the Merger at the Effective Time into the right to receive the Offer Price in cash, without interest thereon (the Merger Consideration), subject to any applicable tax withholding.

F3: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

F4: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F5: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

F6: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F8: 1/12th of the shares subject to the option become vested and exercisable on February 2, 2024 and 1/12 of the shares subject to the option shall vest monthly thereafter.

Arcutis Biotherapeutics, Inc.

Report date October 24, 2023 · Filed October 26, 2023

Jointly reported with Frazier Life Sciences VIII, L.P., FHM LIFE SCIENCES VIII, L.P., FHM LIFE SCIENCES VIII, L.L.C., Heron Patrick J

Section 16 reporting ended · disclosed 2023-10-26. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect8,764,232 Reported balance After 2023-10-24 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2023-10-24 · Purchase · Acquired 80,000 · Balance 8,764,232

Common StockSEC Table I · non-derivativeIndirectFHM Life Sciences VIII, L.L.C.7 Reported balance Holding disclosure · report date 2023-10-24 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 7

F1: Represents shares held of record by FHM Life Sciences VIII, L.L.C. Dr. Topper and Mr. Heron are the sole managing members of FHM Life Sciences VIII, L.L.C. and share voting and investment power of the securities held by FHM Life Sciences VIII, L.L.C. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy Topper Group II LLC11,266 Reported balance Holding disclosure · report date 2023-10-24 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 11,266

F2: Dr. Topper is a manager of Topper Group II LLC and shares voting and investment power over the shares held by Topper Group II LLC.

Common StockSEC Table I · non-derivativeIndirectBy Topper Family Revocable Trust19,381 Reported balance Holding disclosure · report date 2023-10-24 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 19,381

F3: Dr. Topper is a trustee of the Topper Family Revocable Trust and has voting and investment power over the shares held by Topper Family Revocable Trust.

Common StockSEC Table I · non-derivativeIndirectBy The Heron Living Trust 11/30/200423,688 Reported balance Holding disclosure · report date 2023-10-24 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 23,688

F4: Mr. Heron is the co-trustee of The Heron Living Trust 11/30/2004 and has voting and investment power of the securities held by The Heron Living Trust 11/30/2004.

Common StockSEC Table I · non-derivativeIndirectBy Patrick J. Heron8,687 Reported balance Holding disclosure · report date 2023-10-24 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 8,687

F5: Includes 4,375 Restricted Stock Units ("RSUs"). Mr. Heron is entitled to receive one (1) share of the Issuer's Common Stock for each one (1) RSU upon the vesting thereof.

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares held of record by FHM Life Sciences VIII, L.L.C. Dr. Topper and Mr. Heron are the sole managing members of FHM Life Sciences VIII, L.L.C. and share voting and investment power of the securities held by FHM Life Sciences VIII, L.L.C. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2: Dr. Topper is a manager of Topper Group II LLC and shares voting and investment power over the shares held by Topper Group II LLC.

F3: Dr. Topper is a trustee of the Topper Family Revocable Trust and has voting and investment power over the shares held by Topper Family Revocable Trust.

F4: Mr. Heron is the co-trustee of The Heron Living Trust 11/30/2004 and has voting and investment power of the securities held by The Heron Living Trust 11/30/2004.

F5: Includes 4,375 Restricted Stock Units ("RSUs"). Mr. Heron is entitled to receive one (1) share of the Issuer's Common Stock for each one (1) RSU upon the vesting thereof.

Entasis Therapeutics Holdings Inc.

Report date January 09, 2020 · Filed January 13, 2020

Jointly reported with Frazier Life Sciences VIII, L.P., FHM LIFE SCIENCES VIII, L.P., FHM LIFE SCIENCES VIII, L.L.C., Heron Patrick J

Section 16 reporting ended · disclosed 2020-01-13. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect1,299,953 Reported balance After 2020-01-09 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2020-01-09 · Sale · Disposed 50,000 · Balance 1,299,953

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.00 to $5.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 1 to this Form 4

F2: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James Topper and Patrick Heron are the sole managing members of FHM LLC. Mr. Heron, Mr. Topper, FHM LP and FHM LLC disclaims beneficial ownership of the securities held by FLS LP except, to the extent of his or its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.00 to $5.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 1 to this Form 4

F2: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James Topper and Patrick Heron are the sole managing members of FHM LLC. Mr. Heron, Mr. Topper, FHM LP and FHM LLC disclaims beneficial ownership of the securities held by FLS LP except, to the extent of his or its pecuniary interest therein, if any.

HilleVax, Inc.

Report date September 17, 2025 · Filed September 17, 2025

Jointly reported with Frazier Life Sciences X, L.P., FHMLS X, L.P., FHMLS X, L.L.C., Heron Patrick J

Section 16 reporting ended · disclosed 2025-09-17. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Frazier Life Sciences X, L.P.0 Reported balance After 2025-09-17 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2025-09-17 · Other · Disposed 8,535,337 · Balance 0

F1: Reflects disposition of the Issuer's equity securities upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of August 4, 2025, by and among Issuer, XOMA Royalty Corporation ("Parent") and XRA 4 Corp., a wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger (the "Merger") between Issuer and Merger Sub on September 17, 2025. Pursuant to the Merger Agreement, as of the effective time of the Merger (the "Effective Time"), each share of the Issuer's Common Stock, par value $0.0001 per share ("Shares"), issued and outstanding immediately prior to the Effective Time was converted automatically into the right to receive (i) $1.95 in cash, without interest plus (ii) one non-transferable contractual contingent value right per Share.

F2: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X,, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy Patrick J. Heron0 Reported balance After 2025-09-17 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2025-09-17 · Other · Disposed 17,199 · Balance 0

F3: Pursuant to the terms of the Merger Agreement, immediately prior to the Effective Time, each outstanding restricted stock unit ("RSU") immediately vested in full and was canceled in exchange for the right receive (a) an amount in cash, without interest, equal to the product obtained by multiplying (x) the $1.95 by (y) the number of shares underlying such RSU at the Effective Time and (b) one CVR for each share underlying such RSU.

Filing footnotes · ownership attribution and instrument terms

F1: Reflects disposition of the Issuer's equity securities upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of August 4, 2025, by and among Issuer, XOMA Royalty Corporation ("Parent") and XRA 4 Corp., a wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger (the "Merger") between Issuer and Merger Sub on September 17, 2025. Pursuant to the Merger Agreement, as of the effective time of the Merger (the "Effective Time"), each share of the Issuer's Common Stock, par value $0.0001 per share ("Shares"), issued and outstanding immediately prior to the Effective Time was converted automatically into the right to receive (i) $1.95 in cash, without interest plus (ii) one non-transferable contractual contingent value right per Share.

F2: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X,, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F3: Pursuant to the terms of the Merger Agreement, immediately prior to the Effective Time, each outstanding restricted stock unit ("RSU") immediately vested in full and was canceled in exchange for the right receive (a) an amount in cash, without interest, equal to the product obtained by multiplying (x) the $1.95 by (y) the number of shares underlying such RSU at the Effective Time and (b) one CVR for each share underlying such RSU.

Tarsus Pharmaceuticals, Inc.

Report date October 20, 2020 · Filed October 21, 2020

Jointly reported with Frazier Life Sciences IX, L.P., FHMLS IX, L.P., FHMLS IX, L.L.C., Heron Patrick J

Section 16 reporting ended · disclosed 2020-10-21. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect1,917,157 Last balance in matching sequence After 2020-10-20 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 1 · 2020-10-20 · Conversion · Acquired 1,390,376 · Balance 1,390,376

F1: Immediately prior to the closing of the Issuer's initial public offering, each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's common stock, par value $0.0001 per share, on a one-for-one basis. The shares of Preferred Stock had no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Row 2 · 2020-10-20 · Conversion · Acquired 214,281 · Balance 1,604,657

F1: Immediately prior to the closing of the Issuer's initial public offering, each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's common stock, par value $0.0001 per share, on a one-for-one basis. The shares of Preferred Stock had no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Row 3 · 2020-10-20 · Purchase · Acquired 312,500 · Balance 1,917,157

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Series B Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2020-10-20 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2020-10-20 · Conversion · Disposed 1,390,376 · Balance 0

F1: Immediately prior to the closing of the Issuer's initial public offering, each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's common stock, par value $0.0001 per share, on a one-for-one basis. The shares of Preferred Stock had no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Series C Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2020-10-20 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2020-10-20 · Conversion · Disposed 214,281 · Balance 0

F1: Immediately prior to the closing of the Issuer's initial public offering, each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's common stock, par value $0.0001 per share, on a one-for-one basis. The shares of Preferred Stock had no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Immediately prior to the closing of the Issuer's initial public offering, each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's common stock, par value $0.0001 per share, on a one-for-one basis. The shares of Preferred Stock had no expiration date.

F2: The shares are held directly by Frazier Life Sciences IX, L.P. ("FLS LP"). The general partner of FLS LP is FHMLS IX, L.P., and the general partner of FHMLS IX, L.P. is FHMLS IX, LLC. James Topper and Patrick Heron are the sole managing members of FHMLS IX, LLC, and share voting and dispositive power over the shares held by FLS LP. Each of Dr. Topper, Mr. Heron, FHMLS IX, L.P. and FHMLS IX, LLC disclaim beneficial ownership of the shares held by FLS LP, except to the extent of their pecuniary interest therein.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 19, 2026 Filed May 21, 2026 20:30 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantCommon Stock 24,122 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-234572 · ownership.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,718

F1 · shares: The Restricted Stock Units ("RSUs") were granted on May 19, 2026, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

Read SEC document
September 26, 2025 Filed Sep 30, 2025 20:59 UTC MBX Biosciences, Inc. MBX · Entity 4247 PurchaseCommon Stock 666,666 $18.00 $11,999,988.00
Disclosure

SEC source: 0001231919-25-000267 · form4-09302025_080948.xml · nonDerivative · entry 1

Heron Patrick J · CIK 0001365617 · Director · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 5,219,440

F1 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Read SEC document
September 17, 2025 Filed Sep 17, 2025 21:20 UTC HilleVax, Inc. HLVX · Entity 75097 OtherCommon Stock 17,199 $1.95 $33,538.05
Disclosure

SEC source: 0001790879-25-000007 · form4-09172025_090911.xml · nonDerivative · entry 2

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Heron Patrick J · CIK 0001365617 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Patrick J. Heron

Disclosed balance after: 0

F3 · price: Pursuant to the terms of the Merger Agreement, immediately prior to the Effective Time, each outstanding restricted stock unit ("RSU") immediately vested in full and was canceled in exchange for the right receive (a) an amount in cash, without interest, equal to the product obtained by multiplying (x) the $1.95 by (y) the number of shares underlying such RSU at the Effective Time and (b) one CVR for each share underlying such RSU.

Read SEC document
September 17, 2025 Filed Sep 17, 2025 21:20 UTC HilleVax, Inc. HLVX · Entity 75097 OtherCommon Stock 8,535,337 $1.95 $16,643,907.15
Disclosure

SEC source: 0001790879-25-000007 · form4-09172025_090911.xml · nonDerivative · entry 1

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Heron Patrick J · CIK 0001365617 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 0

F1 · price: Reflects disposition of the Issuer's equity securities upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of August 4, 2025, by and among Issuer, XOMA Royalty Corporation ("Parent") and XRA 4 Corp., a wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger (the "Merger") between Issuer and Merger Sub on September 17, 2025. Pursuant to the Merger Agreement, as of the effective time of the Merger (the "Effective Time"), each share of the Issuer's Common Stock, par value $0.0001 per share ("Shares"), issued and outstanding immediately prior to the Effective Time was converted automatically into the right to receive (i) $1.95 in cash, without interest plus (ii) one non-transferable contractual contingent value right per Share.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X,, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 21:22 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 660 $23.70 $15,638.90
Disclosure

SEC source: 0001341382-25-000007 · form4-09172025_090930.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,028,524

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.46 to $23.75. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
September 08, 2025 Filed Sep 10, 2025 21:19 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 1,260 $24.99 $31,487.40
Disclosure

SEC source: 0001415889-25-024111 · form4-09102025_090907.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,027,864

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.86 to $25.00. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
August 11, 2025 Filed Aug 13, 2025 20:49 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 471 $23.98 $11,293.97
Disclosure

SEC source: 0001415889-25-021660 · form4-08132025_080851.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,026,604

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.91 to $24.00. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
June 25, 2025 Filed Jun 26, 2025 23:41 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 1,260 $18.26 $23,011.63
Disclosure

SEC source: 0001415889-25-018316 · form4-06262025_110648.xml · nonDerivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,026,133

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $18.10 to $18.3795. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F3 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 23:41 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 2,520 $18.43 $46,454.44
Disclosure

SEC source: 0001415889-25-018316 · form4-06262025_110648.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,024,873

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $18.305 to $18.63. inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: The total number of shares beneficially owned includes an additional incremental purchase of 200 shares on March 26, 2025, which was inadvertently omitted from the Form 4 filed on March 28, 2025

F3 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
June 16, 2025 Filed Jun 18, 2025 20:42 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 8,584 $19.50 $167,381.13
Disclosure

SEC source: 0001415889-25-017693 · form4-06182025_080636.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,022,153

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $19.20 to $19.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:56 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantStock Option (Right to Buy) · Derivative 17,500 $0.00 Strike: $4.95 $0.00
Disclosure

SEC source: 0000950170-25-082454 · ownership.xml · derivative · entry 6

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2035-06-02

F6 · derivative.exercise_date: The option was granted pursuant to the Issuer's Non-Employee Director Compensation Program. The option shall vest and/or become exercisable on the first to occur of (A) the firstanniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to Reporting Person's continuing in service on the Board through such vestingdate.

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:56 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantCommon Stock 10,500 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-082454 · ownership.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,596

F1 · shares: The Restricted Stock Units ("RSUs") were granted on June 3, 2025, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

Read SEC document
May 21, 2025 Filed May 23, 2025 20:06 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 3,780 $3.86 $14,609.32
Disclosure

SEC source: 0001415889-25-014428 · form4-05232025_080527.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 59,403

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.76 to $3.90, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
May 14, 2025 Filed May 15, 2025 20:17 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 6,300 $3.32 $20,919.15
Disclosure

SEC source: 0001415889-25-013134 · form4-05152025_080534.xml · nonDerivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 55,623

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.215 to $3.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Read SEC document
May 13, 2025 Filed May 15, 2025 20:17 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 1,120 $3.16 $3,543.34
Disclosure

SEC source: 0001415889-25-013134 · form4-05152025_080534.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 49,323

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.045 to $3.23, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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May 12, 2025 Filed May 13, 2025 20:13 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 12,601 $3.04 $38,300.74
Disclosure

SEC source: 0001415889-25-012770 · form4-05132025_080500.xml · nonDerivative · entry 3

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 48,203

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.825 to $3.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (4) to this Form 4

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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May 09, 2025 Filed May 13, 2025 20:13 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 2,226 $3.62 $8,053.00
Disclosure

SEC source: 0001415889-25-012770 · form4-05132025_080500.xml · nonDerivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 35,602

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.58 to $3.75, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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May 09, 2025 Filed May 13, 2025 20:13 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 PurchaseCommon Stock 33,376 $3.19 $106,562.89
Disclosure

SEC source: 0001415889-25-012770 · form4-05132025_080500.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 33,376

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.575 to $3.57, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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March 26, 2025 Filed Mar 28, 2025 21:36 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 1,135 $22.49 $25,520.59
Disclosure

SEC source: 0001415889-25-009198 · form4-03282025_090345.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,013,569

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $22.37 to $22.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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March 04, 2025 Filed Mar 6, 2025 22:32 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 4,005 $21.02 $84,203.12
Disclosure

SEC source: 0001415889-25-007263 · form4-03062025_100302.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,012,434

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $20.545 to $21.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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September 16, 2024 Filed Sep 18, 2024 00:11 UTC MBX Biosciences, Inc. MBX · Entity 4247 ConversionSeries B Convertible Preferred Stock · Derivative 28,297,265 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-107536 · ownership.xml · derivative · entry 4

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,353,769 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · price: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F2 · ownership.direct: These securities are held of record by Frazier Life Sciences X, L.P. ("FLS X"). FHMLS X, L.P. is the general partner of FLS X, and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick Heron and James Topper, M.D., Ph.D., are the sole managing members of FHMLS X, L.L.C. and share voting and investment power of the securities held by FLS X, and as a result, may be deemed to have beneficial ownership over such securities. Mr. Heron and Dr. Topper disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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September 16, 2024 Filed Sep 18, 2024 00:11 UTC MBX Biosciences, Inc. MBX · Entity 4247 ConversionSeries A Convertible Preferred Stock · Derivative 18,922,852 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-107536 · ownership.xml · derivative · entry 3

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,574,005 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · price: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F2 · ownership.direct: These securities are held of record by Frazier Life Sciences X, L.P. ("FLS X"). FHMLS X, L.P. is the general partner of FLS X, and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick Heron and James Topper, M.D., Ph.D., are the sole managing members of FHMLS X, L.L.C. and share voting and investment power of the securities held by FLS X, and as a result, may be deemed to have beneficial ownership over such securities. Mr. Heron and Dr. Topper disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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September 16, 2024 Filed Sep 18, 2024 00:11 UTC MBX Biosciences, Inc. MBX · Entity 4247 PurchaseCommon Stock 625,000 $16.00 $10,000,000.00
Disclosure

SEC source: 0000950170-24-107536 · ownership.xml · nonDerivative · entry 2

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,552,774

F3 · shares: Reflects shares purchased in the Issuer's initial public offering.

F2 · ownership.direct: These securities are held of record by Frazier Life Sciences X, L.P. ("FLS X"). FHMLS X, L.P. is the general partner of FLS X, and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick Heron and James Topper, M.D., Ph.D., are the sole managing members of FHMLS X, L.L.C. and share voting and investment power of the securities held by FLS X, and as a result, may be deemed to have beneficial ownership over such securities. Mr. Heron and Dr. Topper disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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September 16, 2024 Filed Sep 18, 2024 00:11 UTC MBX Biosciences, Inc. MBX · Entity 4247 ConversionCommon Stock 3,927,774 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-107536 · ownership.xml · nonDerivative · entry 1

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,927,774

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date.

F2 · ownership.direct: These securities are held of record by Frazier Life Sciences X, L.P. ("FLS X"). FHMLS X, L.P. is the general partner of FLS X, and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick Heron and James Topper, M.D., Ph.D., are the sole managing members of FHMLS X, L.L.C. and share voting and investment power of the securities held by FLS X, and as a result, may be deemed to have beneficial ownership over such securities. Mr. Heron and Dr. Topper disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

Read SEC document
May 23, 2024 Filed May 24, 2024 23:47 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantStock Option (Right to Buy) · Derivative 17,500 $0.00 Strike: $10.30 $0.00
Disclosure

SEC source: 0000950170-24-064842 · ownership.xml · derivative · entry 5

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2034-05-22

F5 · derivative.exercise_date: The option was granted pursuant to the Issuer's Non-Employee Director Compensation Program. The option shall vest and/or become exercisable on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to Reporting Person's continuing in service on the Board through such vesting date.

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May 23, 2024 Filed May 24, 2024 23:47 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantCommon Stock 10,500 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-064842 · ownership.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,096

F1 · shares: The Restricted Stock Units ("RSUs") were granted on May 23, 2024, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

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May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 17,500 Not disclosed Strike: $19.00 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 8

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,500 shares

Expires 2034-01-01

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F8 · derivative.exercise_date: 1/12th of the shares subject to the option become vested and exercisable on February 2, 2024 and 1/12 of the shares subject to the option shall vest monthly thereafter.

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May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 10,000 Not disclosed Strike: $7.43 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 7

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2033-01-02

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Read SEC document
May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 10,000 Not disclosed Strike: $13.89 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 6

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2032-01-02

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Read SEC document
May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 7,650 Not disclosed Strike: $13.45 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 5

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,650 shares

Expires 2031-01-03

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Read SEC document
May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 7,650 Not disclosed Strike: $3.62 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 4

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,650 shares

Expires 2030-01-01

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Read SEC document
May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 7,650 Not disclosed Strike: $4.09 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 3

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,650 shares

Expires 2029-01-01

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

Read SEC document
May 20, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 Disposition to issuerStock Option (Right to buy) · Derivative 7,650 Not disclosed Strike: $11.31 Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · derivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,650 shares

Expires 2028-01-01

F4 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F6 · price: Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

F7 · price: (Continued from Footnote 6) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

F5 · derivative.exercise_date: The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

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May 18, 2024 Filed May 21, 2024 00:10 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 OtherCommon Stock 2,829,347 Not disclosed Not disclosed
Disclosure

SEC source: 0001626199-24-000097 · wk-form4_1716250233.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences VIII, L.P.

Disclosed balance after: 0

F1 · price: This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger (the Merger Agreement), dated April 10, 2024, among Alpine Immune Sciences, Inc., a Delaware corporation (the Company), Vertex Pharmaceuticals Incorporated, a Massachusetts corporation (Parent), and Adams Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (Merger Sub). Pursuant to the Merger Agreement, Merger Sub completed a tender offer for shares of the Companys Common Stock, par value $0.001 per share (Company Common Stock), effective May 18, 2024 (the Offer Closing), and thereafter merged with and into the Company (the Merger, and together with the Offer Closing, the Transactions), effective May 20, 2024 (the Effective Time), with the Company surviving the Merger as a wholly owned subsidiary of Parent.

F2 · price: (Continued from Footnote 1) In connection with the consummation of the Transactions, each share of the Company Common Stock was either (x) purchased at the Offer Closing for $65.00 in cash per share (the Offer Price), without interest thereon and subject to any applicable tax withholding or (y) automatically converted in the Merger at the Effective Time into the right to receive the Offer Price in cash, without interest thereon (the Merger Consideration), subject to any applicable tax withholding.

F3 · ownership.nature: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

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April 25, 2024 Filed Apr 29, 2024 20:32 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 OtherWarrant (Right to Buy) · Derivative 1,200,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-24-011664 · form4-04292024_080401.xml · derivative · entry 3

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Frazier Life Sciences VIII, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,200,000 shares

Expires not disclosed

F3 · derivative.exercise_date: The warrant had no expiration date and was exercisable immediately.

F3 · derivative.expiration_date: The warrant had no expiration date and was exercisable immediately.

F1 · ownership.nature: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

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April 25, 2024 Filed Apr 29, 2024 20:32 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 SaleCommon Stock 19 $64.57 $1,226.83
Disclosure

SEC source: 0001415889-24-011664 · form4-04292024_080401.xml · nonDerivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Frazier Life Sciences VIII, L.P.

Disclosed balance after: 2,829,347

F2 · kind: On April 25, 2024, Frazier Life Sciences VIII, L.P. exercised a warrant to purchase 1,200,000 shares of the Issuer's Common Stock at an exercise price of $0.001 per share. Frazier Life Sciences VIII, L.P. paid the exercise price on a cashless basis, resulting in the Issuer withholding 19 shares of Common Stock to pay the exercise price and issuing Frazier Life Sciences VIII, L.P. the remaining 1,199,981 shares of Common Stock.

F1 · ownership.nature: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

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April 25, 2024 Filed Apr 29, 2024 20:32 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 OtherCommon Stock 1,200,000 $0.00 $1,200.00
Disclosure

SEC source: 0001415889-24-011664 · form4-04292024_080401.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Frazier Life Sciences VIII, L.P.

Disclosed balance after: 2,829,366

F1 · ownership.nature: The reportable securities are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

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April 04, 2024 Filed Apr 8, 2024 20:22 UTC HilleVax, Inc. HLVX · Entity 75097 PurchaseCommon Stock 8,850 $14.50 $128,325.00
Disclosure

SEC source: 0001415889-24-010490 · form4-04082024_080405.xml · nonDerivative · entry 1

Frazier Life Sciences X, L.P. · CIK 0001790879 · 10% owner

FHMLS X, L.P. · CIK 0001790880 · 10% owner

FHMLS X, L.L.C. · CIK 0001790811 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Heron Patrick J · CIK 0001365617 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,544,187

F1 · ownership.direct: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X,, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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March 26, 2024 Filed Mar 28, 2024 20:30 UTC NewAmsterdam Pharma Co N.V. NAMS · Entity 1826 PurchaseOrdinary Shares 8,429 $21.50 $181,223.50
Disclosure

SEC source: 0001415889-24-009330 · form4-03282024_080315.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Frazier Life Sciences X, L.P.

Disclosed balance after: 3,008,429

F1 · ownership.nature: The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

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January 02, 2024 Filed Jan 5, 2024 00:03 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 GrantStock Option (Right to buy) · Derivative 17,500 $0.00 Strike: $19.00 $0.00
Disclosure

SEC source: 0001626199-24-000011 · wk-form4_1704413025.xml · derivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2034-01-01

F1 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F2 · derivative.exercise_date: 1/12th of the shares subject to the option become vested and exercisable on February 2, 2024 and 1/12 of the shares subject to the option shall vest monthly thereafter.

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December 11, 2023 Filed Dec 13, 2023 22:30 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 OtherWarrant (Right to Buy) · Derivative 145,251 $0.00 Strike: $12.74 $0.00
Disclosure

SEC source: 0001209191-23-058530 · doc4.xml · derivative · entry 2

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 145,251 shares

Expires 2024-01-18

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December 11, 2023 Filed Dec 13, 2023 22:30 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 OtherCommon Stock 145,251 $12.74 $1,850,497.74
Disclosure

SEC source: 0001209191-23-058530 · doc4.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Frazier Life Sciences VIII, L.P.

Disclosed balance after: 1,629,366

F1 · ownership.nature: The shares of Common Stock are held directly by Frazier Life Sciences VIII, L.P. ("FLS LP"). FHM Life Sciences VIII, L.P. ("FHM LP") is the general partner of FLS LP. FHM Life Sciences VIII, L.L.C. ("FHM LLC") is the general partner of FHM LP. James N. Topper is one of two managing members of FHM LLC. Dr. Topper disclaims beneficial ownership of the securities held by FLS LP except for his pecuniary interest therein, if any.

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October 24, 2023 Filed Oct 26, 2023 20:09 UTC Arcutis Biotherapeutics, Inc. ARQT · Entity 4236 PurchaseCommon Stock 80,000 $2.50 $200,000.00
Disclosure

SEC source: 0001209191-23-053662 · doc4.xml · nonDerivative · entry 1

Frazier Life Sciences VIII, L.P. · CIK 0001655827 · 10% owner

FHM LIFE SCIENCES VIII, L.P. · CIK 0001698755 · 10% owner

FHM LIFE SCIENCES VIII, L.L.C. · CIK 0001698823 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Heron Patrick J · CIK 0001365617 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,764,232

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May 25, 2023 Filed May 30, 2023 23:03 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantStock Option (Right to Buy) · Derivative 15,000 $0.00 Strike: $11.72 $0.00
Disclosure

SEC source: 0001209191-23-033025 · doc4.xml · derivative · entry 5

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2033-05-24

F5 · derivative.exercise_date: The option was granted pursuant to the Issuer's Non-Employee Director Compensation Program. The option shall vest and/or become exercisable on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing in service on the Board through such vesting date.

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May 25, 2023 Filed May 30, 2023 23:03 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantCommon Stock 9,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-033025 · doc4.xml · nonDerivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,596

F1 · shares: The Restricted Stock Units ("RSUs") were granted on May 25, 2023, pursuant to the Issuer's Non-Employee Director Compensation Program. 100% of the total number of RSUs granted shall vest on the first to occur of (A) the first anniversary of the date of grant or (B) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continuing service on the Board through such vesting date. Each RSU represents a contingent right to receive one share of common stock of the Issuer.

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January 06, 2023 Filed Jan 11, 2023 00:13 UTC ANAPTYSBIO, INC ANAB · Entity 4640 GrantRestricted Stock Unit · Derivative 3,900 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-002887 · doc4.xml · derivative · entry 2

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,900

Underlying: Common Stock · 3,900 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

F3 · derivative.exercise_date: The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2024 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

F3 · derivative.expiration_date: The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2024 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

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January 06, 2023 Filed Jan 11, 2023 00:13 UTC ANAPTYSBIO, INC ANAB · Entity 4640 GrantStock Option (right to buy) · Derivative 10,600 $0.00 Strike: $23.23 $0.00
Disclosure

SEC source: 0001209191-23-002887 · doc4.xml · derivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,600

Underlying: Common Stock · 10,600 shares

Expires 2033-01-05

F1 · derivative.exercise_date: The stock option vests as to 1/12 of the total shares monthly commencing on February 6, 2023 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

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January 03, 2023 Filed Jan 6, 2023 00:00 UTC ALPINE IMMUNE SCIENCES, INC. ALPN · Entity 90802 GrantStock Option (Right to buy) · Derivative 10,000 $0.00 Strike: $7.43 $0.00
Disclosure

SEC source: 0001626199-23-000020 · wf-form4_167296318497904.xml · derivative · entry 1

Topper James N · CIK 0001341382 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2033-01-02

F1 · derivative.exercise_price: The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

F2 · derivative.exercise_date: 1/12th of the shares subject to the option become vested and exercisable on February 3, 2023 and 1/12 of the shares subject to the option shall vest monthly thereafter.

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September 22, 2022 Filed Sep 26, 2022 20:09 UTC Phathom Pharmaceuticals, Inc. PHAT · Entity 5177 GrantStock Option (Right to Buy · Derivative 20,000 $0.00 Strike: $10.02 $0.00
Disclosure

SEC source: 0001209191-22-051239 · doc4.xml · derivative · entry 1

Topper James N · CIK 0001341382 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2032-09-21

F1 · derivative.exercise_date: The stock option will vest with respect to one-third of the shares of common stock on September 22, 2023, and will vest with respect to the remaining shares in equal monthly installments over the following two years, subject to the reporting person's continuous service to the Company on the applicable vesting dates.

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August 05, 2022 Filed Aug 9, 2022 20:34 UTC Arcutis Biotherapeutics, Inc. ARQT · Entity 4236 PurchaseCommon Stock 250,000 $20.00 $5,000,000.00
Disclosure

SEC source: 0001209191-22-045014 · doc4.xml · nonDerivative · entry 1

Frazier Life Sciences VIII, L.P. · CIK 0001655827 · 10% owner

FHM LIFE SCIENCES VIII, L.P. · CIK 0001698755 · 10% owner

FHM LIFE SCIENCES VIII, L.L.C. · CIK 0001698823 · 10% owner

Topper James N · CIK 0001341382 · 10% owner

Heron Patrick J · CIK 0001365617 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,684,232

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.