TapewireFind a company

organization · Reporting owner

Vida Ventures III, L.P.

Disclosed activity across 4 companies

Tapewire entity
26881
SEC CIK
0001855504

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Attovia Therapeutics, Inc.ATTO · Entity 498410% ownerAugust 04, 2026August 05, 2026
Kyverna Therapeutics, Inc.KYTX · Entity 545210% ownerFebruary 12, 2024February 15, 2024
Vigil Neuroscience, Inc.VIGL · Entity 1167510% ownerJanuary 11, 2022January 12, 2022

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.

Attovia Therapeutics, Inc.

Report date August 04, 2026 · Filed August 05, 2026

Jointly reported with Vida Ventures GP III, L.L.C., Vida Ventures III-A, L.P.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Series C Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III, L.P.Not disclosed Reported balance Holding disclosure · report date 2026-08-04 · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · Balance Not disclosed

F1: Each share of Series C Preferred Stock is convertible into shares of the Issuer's Common Stock on a 9.29-for-1 basis and has no expiration date. All shares of Series C Preferred Stock will automatically convert on a 9.29-for-1 basis into shares of Common Stock upon the closing of the Issuer's initial public offering of its Common Stock without payment of additional consideration.

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim, and Rajul Jain are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment, and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series C Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III-A, L.P.Not disclosed Reported balance Holding disclosure · report date 2026-08-04 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance Not disclosed

F1: Each share of Series C Preferred Stock is convertible into shares of the Issuer's Common Stock on a 9.29-for-1 basis and has no expiration date. All shares of Series C Preferred Stock will automatically convert on a 9.29-for-1 basis into shares of Common Stock upon the closing of the Issuer's initial public offering of its Common Stock without payment of additional consideration.

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment, and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series C Preferred Stock is convertible into shares of the Issuer's Common Stock on a 9.29-for-1 basis and has no expiration date. All shares of Series C Preferred Stock will automatically convert on a 9.29-for-1 basis into shares of Common Stock upon the closing of the Issuer's initial public offering of its Common Stock without payment of additional consideration.

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim, and Rajul Jain are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment, and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment, and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Kyverna Therapeutics, Inc.

Report date February 12, 2024 · Filed February 15, 2024

Jointly reported with Vida Ventures, LLC, Vida Ventures GP III, L.L.C., Vida Ventures III-A, L.P.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures, LLC4,523,924 Reported balance After 2024-02-12 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2024-02-12 · Conversion · Acquired 4,523,924 · Balance 4,523,924

F1: Represents shares of the Issuer's Common Stock received upon conversion of shares of the reported series of preferred stock on a 1-for-4.5511 basis without payment of further consideration.

F2: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III, L.P.252,553 Reported balance After 2024-02-12 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2024-02-12 · Purchase · Acquired 252,553 · Balance 252,553

F3: The shares of the Issuer's Common Stock are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III-A, L.P.583 Reported balance After 2024-02-12 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2024-02-12 · Purchase · Acquired 583 · Balance 583

F4: The shares of the Issuer's Common Stock are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series A-1 Redeemable Convertible Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures, LLC0 Reported balance After 2024-02-12 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2024-02-12 · Conversion · Disposed 4,401,771 · Balance 0

F5: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Series A-2 Redeemable Convertible Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures, LLC0 Reported balance After 2024-02-12 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-02-12 · Conversion · Disposed 8,830,901 · Balance 0

F5: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Series B Redeemable Convertible Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures, LLC0 Reported balance After 2024-02-12 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-02-12 · Conversion · Disposed 7,356,162 · Balance 0

F5: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares of the Issuer's Common Stock received upon conversion of shares of the reported series of preferred stock on a 1-for-4.5511 basis without payment of further consideration.

F2: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

F3: The shares of the Issuer's Common Stock are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F4: The shares of the Issuer's Common Stock are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F5: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

Vigil Neuroscience, Inc.

Report date January 11, 2022 · Filed January 12, 2022

Jointly reported with Vida Ventures GP III, L.L.C., Vida Ventures III-A, L.P.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III, L.P.5,004,393 Last balance in matching sequence After 2022-01-11 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2022-01-11 · Conversion · Acquired 3,333,245 · Balance 3,333,245

F1: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F2: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Row 3 · 2022-01-11 · Purchase · Acquired 1,671,148 · Balance 5,004,393

F4: On January 11, 2022, Vida III purchased 1,671,148 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

F2: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III-A, L.P.11,536 Last balance in matching sequence After 2022-01-11 transaction · row 4 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 2 · 2022-01-11 · Conversion · Acquired 7,684 · Balance 7,684

F1: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F3: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Row 4 · 2022-01-11 · Purchase · Acquired 3,852 · Balance 11,536

F5: On January 11, 2022, Vida III-A purchased 3,852 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

F3: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series B Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III, L.P.0 Reported balance After 2022-01-11 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2022-01-11 · Conversion · Disposed 9,243,756 · Balance 0

F1: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F2: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series B Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III-A, L.P.0 Reported balance After 2022-01-11 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2022-01-11 · Conversion · Disposed 21,310 · Balance 0

F1: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F3: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F2: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F3: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F4: On January 11, 2022, Vida III purchased 1,671,148 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

F5: On January 11, 2022, Vida III-A purchased 3,852 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

Past disclosures · reporting ended (1)

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

LB PHARMACEUTICALS INC

Report date September 12, 2025 · Filed September 16, 2025

Jointly reported with Vida Ventures GP III, L.L.C., Vida Ventures III-A, L.P., Belldegrun Arie, Vida Ventures Management Co. LLC

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

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III, L.P.880,214 Last balance in matching sequence After 2025-09-12 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2025-09-12 · Conversion · Acquired 547,648 · Balance 547,648

F1: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Row 3 · 2025-09-12 · Purchase · Acquired 332,566 · Balance 880,214

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures III-A, L.P.2,029 Last balance in matching sequence After 2025-09-12 transaction · row 4 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 2 · 2025-09-12 · Conversion · Acquired 1,262 · Balance 1,262

F1: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Row 4 · 2025-09-12 · Purchase · Acquired 767 · Balance 2,029

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series C Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III, L.P.0 Reported balance After 2025-09-12 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2025-09-12 · Conversion · Disposed 13,302,666 · Balance 0

F1: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Series C Preferred StockSEC Table II · derivative / convertible securityIndirectBy Vida Ventures III-A, L.P.0 Reported balance After 2025-09-12 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2025-09-12 · Conversion · Disposed 30,667 · Balance 0

F1: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectBy Vida Ventures Management Co. LLC1,434 Reported balance Holding disclosure · report date 2025-09-12 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 1,434

F5: These shares are held directly by Vida Ventures Management Co., LLC ("Vida Management"). Each Investment Committee Member (as defined below) disclaims beneficial ownership of the securities held of record by Vida Management, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F2: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F4: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

F5: These shares are held directly by Vida Ventures Management Co., LLC ("Vida Management"). Each Investment Committee Member (as defined below) disclaims beneficial ownership of the securities held of record by Vida Management, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Transaction history

JSON API
Reset

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
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 ConversionSeries C Preferred Stock · Derivative 30,667 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · derivative · entry 7

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,262 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 C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F4 · ownership.nature: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 ConversionSeries C Preferred Stock · Derivative 13,302,666 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · derivative · entry 6

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 547,648 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 C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F2 · ownership.nature: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3 · ownership.nature: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 PurchaseCommon Stock 767 $15.00 $11,505.00
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · nonDerivative · entry 4

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 2,029

F4 · ownership.nature: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 PurchaseCommon Stock 332,566 $15.00 $4,988,490.00
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · nonDerivative · entry 3

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 880,214

F2 · ownership.nature: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3 · ownership.nature: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 ConversionCommon Stock 1,262 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · nonDerivative · entry 2

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 1,262

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 · kind: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · price: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F4 · ownership.nature: These shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A and may be deemed to have voting, investment, and dispositive power with respect to these securities. The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
September 12, 2025 Filed Sep 16, 2025 19:46 UTC LB PHARMACEUTICALS INC LBRX · Entity 4678 ConversionCommon Stock 547,648 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-204935 · ownership.xml · nonDerivative · entry 1

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

Belldegrun Arie · CIK 0001296549 · 10% owner

Vida Ventures Management Co. LLC · CIK 0001905615 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 547,648

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 · kind: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F1 · price: Each share of Series C Preferred Stock has no expiration date and converted automatically into Common Stock immediately prior to the Issuer's initial public offering at a conversion ratio based upon the initial price per share to the public in the Issuer's initial public offering.

F2 · ownership.nature: These shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Arie Belldegrun, Helen Kim and Rajul Jain, are the members of the investment committee of Vida III GP (each, an "Investment Committee Member" and such committee, the "Investment Committee").

F3 · ownership.nature: (Continued from Footnote 2) The Investment Committee and each of the Investment Committee Members may be deemed to share voting, investment and dispositive power with respect to these securities. Vida III GP, the Investment Committee and each of the Investment Committee Members disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 ConversionSeries B Redeemable Convertible Preferred Stock · Derivative 7,356,162 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · derivative · entry 6

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures, LLC

Disclosed balance after: 0

Underlying: Common Stock · 1,616,348 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.

F5 · derivative.exercise_price: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.exercise_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.expiration_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 ConversionSeries A-2 Redeemable Convertible Preferred Stock · Derivative 8,830,901 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · derivative · entry 5

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures, LLC

Disclosed balance after: 0

Underlying: Common Stock · 1,940,388 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.

F5 · derivative.exercise_price: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.exercise_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.expiration_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 ConversionSeries A-1 Redeemable Convertible Preferred Stock · Derivative 4,401,771 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · derivative · entry 4

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures, LLC

Disclosed balance after: 0

Underlying: Common Stock · 967,188 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.

F5 · derivative.exercise_price: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.exercise_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.expiration_date: The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock had no expiration date and automatically converted into the Issuer's Common Stock on a 1-for-4.5511 basis immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 PurchaseCommon Stock 583 $22.00 $12,826.00
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · nonDerivative · entry 3

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 583

F4 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 PurchaseCommon Stock 252,553 $22.00 $5,556,166.00
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · nonDerivative · entry 2

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 252,553

F3 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C. ("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 00:04 UTC Kyverna Therapeutics, Inc. KYTX · Entity 5452 ConversionCommon Stock 4,523,924 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-015479 · ownership.xml · nonDerivative · entry 1

Vida Ventures, LLC · CIK 0001724489 · 10% owner

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Vida Ventures, LLC

Disclosed balance after: 4,523,924

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 · kind: Represents shares of the Issuer's Common Stock received upon conversion of shares of the reported series of preferred stock on a 1-for-4.5511 basis without payment of further consideration.

F1 · price: Represents shares of the Issuer's Common Stock received upon conversion of shares of the reported series of preferred stock on a 1-for-4.5511 basis without payment of further consideration.

F2 · ownership.nature: The shares of the Issuer's Common Stock are held directly by Vida Ventures, LLC. Vida Ventures Advisors, LLC is the investment advisor to Vida Ventures, LLC. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by Vida Ventures, LLC, but each disclaims beneficial ownership of the shares held by Vida Ventures, LLC, except to the extent of such person's pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 ConversionSeries B Preferred Stock · Derivative 21,310 $0.00 $0.00
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · derivative · entry 6

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 7,684 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 B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F1 · derivative.exercise_date: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F1 · derivative.expiration_date: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F3 · ownership.nature: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 ConversionSeries B Preferred Stock · Derivative 9,243,756 $0.00 $0.00
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · derivative · entry 5

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 3,333,245 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 B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F1 · derivative.exercise_date: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F1 · derivative.expiration_date: Each share of Series B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F2 · ownership.nature: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 PurchaseCommon Stock 3,852 $14.00 $53,928.00
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · nonDerivative · entry 4

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 11,536

F5 · price: On January 11, 2022, Vida III-A purchased 3,852 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

F3 · ownership.nature: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 PurchaseCommon Stock 1,671,148 $14.00 $23,396,072.00
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · nonDerivative · entry 3

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 5,004,393

F4 · price: On January 11, 2022, Vida III purchased 1,671,148 shares of Common Stock of the Issuer at a price of $14.00 per share pursuant to an underwritten public offering.

F2 · ownership.nature: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 ConversionCommon Stock 7,684 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · nonDerivative · entry 2

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III-A, L.P.

Disclosed balance after: 7,684

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 B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F3 · ownership.nature: The shares are held directly by Vida Ventures III-A, L.P. ("Vida III-A"). Vida III GP is the general partner of Vida III-A. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III-A, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document
January 11, 2022 Filed Jan 12, 2022 02:18 UTC Vigil Neuroscience, Inc. VIGL · Entity 11675 ConversionCommon Stock 3,333,245 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-22-001657 · doc4.xml · nonDerivative · entry 1

Vida Ventures GP III, L.L.C. · CIK 0001855502 · 10% owner

Vida Ventures III, L.P. · CIK 0001855504 · 10% owner

Vida Ventures III-A, L.P. · CIK 0001855503 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Vida Ventures III, L.P.

Disclosed balance after: 3,333,245

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 B Preferred Stock automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock") on a one-for-2.7732 basis upon the closing of the Issuer's initial public offering on January 11, 2022 and had no expiration date.

F2 · ownership.nature: The shares are held directly by Vida Ventures III, L.P. ("Vida III"). Vida Ventures GP III, L.L.C.("Vida III GP") is the general partner of Vida III. Vida III GP disclaims beneficial ownership of the securities held of record by Vida III, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein, if any.

Read SEC document

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