ARTV · Artiva Biotherapeutics, Inc.
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
Insider Sentiment Score
Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-08-18 | Banerjee Subhashis |
Chief Medical Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026. |
Common Stock
|
429 |
| 2026-08-18 | Banerjee Subhashis |
Chief Medical Officer |
Convert↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026. 25% of the shares initially subject to the option vested and became exercisable on April 8, 2026, and the balance of the shares subject to the option are vesting and becoming exercisable at a rate of 1/36th per month over the following 36 months. |
Employee Stock Option (Right to Buy)
|
429 |
| 2026-08-18 | Banerjee Subhashis |
Chief Medical Officer |
Convert↑
Filing footnotes — Common Stock (Direct)
The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026. |
Common Stock
|
429 |
| 2026-07-31 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.82 to $9.97 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. |
Common Stock
(I)
|
24,944 |
| 2026-07-29 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.84 to $10.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus Fund III, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
20,824 |
| 2026-07-24 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.96 to $10.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
41,319 |
| 2026-07-23 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.40 to $10.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
59,880 |
| 2026-07-22 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.72 to $10.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
84,124 |
| 2026-07-21 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.16 to $10.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
120,582 |
| 2026-07-17 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.88 to $9.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
7,882 |
| 2026-07-16 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.79 to $9.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
152,472 |
| 2026-07-13 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
This Form 4/A amends the Form 4 filed on July 14, 2026 to correct the number of shares purchased, which were reported as 6,552, due to a clerical error. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.89 to $8.95 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
6,522 |
| 2026-06-26 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.97 to $9.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
1,876 |
| 2026-06-25 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.62 to $8.98 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
31,000 |
| 2026-06-16 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.63 to $9.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
124,893 |
| 2026-06-15 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.96 to $9.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
15,414 |
| 2026-06-12 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.31 to $8.64 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
391,019 |
| 2026-06-11 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.605 to $8.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
548,580 |
| 2026-06-10 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
103 |
| 2026-06-09 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.77 to $7.00 inclusive. The Reporting Persons undertake 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 range set forth in this footnote. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
479,039 |
| 2026-05-19 | Banerjee Subhashis |
Chief Medical Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
The Issuer has adopted a 'sell-to-cover' policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and release of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. The weighted average sale price for the transaction reported was $9.0076, and the range of prices were between $8.7404 and $9.0104. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
Common Stock
|
7,037 |
| 2026-05-19 | Horan Christopher |
Chief Tech Operations Officer |
Sell↓
Filing footnotes — Common Stock (Direct)
The Issuer has adopted a 'sell-to-cover' policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and release of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. The weighted average sale price for the transaction reported was $9.0078, and the range of prices were between $8.7421 and $9.0104. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
Common Stock
|
7,002 |
| 2026-05-19 | Bush Jennifer |
COO, CLO, Secy, Compliance Off |
Sell↓
Filing footnotes — Common Stock (Direct)
The Issuer has adopted a 'sell-to-cover' policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and release of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. The weighted average sale price for the transaction reported was $9.0078, and the range of prices were between $8.7439 and $9.0104. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
Common Stock
|
8,790 |
| 2026-05-19 | Aslan Fred |
Director, President and CEO |
Sell↓
Filing footnotes — Common Stock (Direct)
The Issuer has adopted a 'sell-to-cover' policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and release of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. The weighted average sale price for the transaction reported was $9.0077, and the range of prices were between $8.7383 and $9.0104. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
Common Stock
|
27,116 |
| 2026-05-19 | Raymon Heather |
SVP, Research and Development |
Sell↓
Filing footnotes — Common Stock (Direct)
The Issuer has adopted a 'sell-to-cover' policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and release of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. The weighted average sale price for the transaction reported was $9.0078, and the range of prices were between $8.7447 and $9.0104. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
Common Stock
|
3,095 |
| 2026-05-18 | Miralles Gines Diego |
Director |
Award↑
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
Represents stock option award granted under the Issuer's 2025 Inducement Plan. 25% of the shares initially subject to the option will vest and become exercisable on May 15, 2027, and the balance of the shares subject to the option shall vest and become exercisable at a rate of 1/36th per month over the following 36 months. |
Employee Stock Option (Right to Buy)
|
232,500 |
| 2026-05-18 | Miralles Gines Diego |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2025 Inducement Plan. |
Common Stock
|
77,500 |
| 2026-05-11 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Common Stock (Indirect)
RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Common Stock
(I)
|
6,510,416 |
| 2026-05-11 | GC Corp. |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Indirect)
The shares are held directly by GC Cell Corporation. GC Corp., a public Korean holdings company, is the parent company of GC Cell Corporation and is ultimately controlled by its board of directors. As of March 26, 2026, the board consists of: Mr. Yong-Jun Huh, Huh Il-Sup, Park Yong-Tae, Kang Joonho, and Lee Choonwoo. Each of these individual directors of GC Corp. may be deemed to share voting and investment power over the shares held by GC Corp. and GC Cell Corporation and each disclaims beneficial ownership of all shares held by such entities, except to the extent of any pecuniary interest therein. |
Common Stock
(I)
|
347,222 |
| 2026-05-11 | GC Corp. |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
GC Corp., a public Korean holdings company, is ultimately controlled by its board of directors. As of March 26, 2026, the board consists of: Mr. Yong-Jun Huh, Huh Il-Sup, Park Yong-Tae, Kang Joonho, and Lee Choonwoo. Each of these individual directors of GC Corp. may be deemed to share voting and investment power over the shares held by GC Corp. and each disclaims beneficial ownership of all shares held by GC Corp., except to the extent of any pecuniary interest therein. |
Common Stock
|
1,085,069 |
| 2026-05-11 | RA CAPITAL MANAGEMENT, L.P. |
Director |
Buy↑
Filing footnotes — Pre-Funded Warrant (Right to Buy) (Indirect)
The Pre-Funded Warrants have no expiration date and are exercisable immediately. Notwithstanding the foregoing, the Fund shall not be entitled to exercise the Pre-Funded Warrant if it would cause the aggregate number of shares of Common Stock beneficially owned by the Fund, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein. Held directly by the Fund. |
Pre-Funded Warrant (Right to Buy)
(I)
|
2,170,138 |
| 2026-03-10 | Huston Thad Allen |
Chief Financial Officer |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2025 Inducement Plan. |
Common Stock
|
220,000 |
| 2026-02-18 | Sorg Elaine K. |
SVP, US COMMERCIAL OPERATIONS |
Award↑
Filing footnotes — Director Stock Option (Right to Buy) (Direct)
One-third of the shares vested following the grant date, with the remaining shares vesting monthly over an additional two years following February 18, 2026. |
Director Stock Option (Right to Buy)
|
27,500 |
| 2026-02-15 | Bush Jennifer |
COO, CLO, Secy, Compliance Off |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2024 Equity Incentive Plan. |
Common Stock
|
117,300 |
| 2026-02-15 | Banerjee Subhashis |
Chief Medical Officer |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2024 Equity Incentive Plan. |
Common Stock
|
102,000 |
| 2026-02-15 | Aslan Fred |
Director, President and CEO |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2024 Equity Incentive Plan. |
Common Stock
|
366,850 |
| 2026-02-15 | Aslan Fred |
Director, President and CEO |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents shares withheld by the Issuer to satisfy income tax obligations associated with the vesting of restricted stock unit awards. |
Common Stock
|
14,600 |
| 2026-02-15 | Horan Christopher |
Chief Tech Operations Officer |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2024 Equity Incentive Plan. |
Common Stock
|
117,300 |
| 2026-02-15 | Raymon Heather |
SVP, Research and Development |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock unit award granted under the Issuer's 2024 Equity Incentive Plan. |
Common Stock
|
46,000 |
| 2026-02-15 | Bush Jennifer |
COO, CLO, Secy, Compliance Off |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents shares withheld by the Issuer to satisfy income tax obligations associated with the vesting of restricted stock unit awards. |
Common Stock
|
3,515 |
| 2026-02-15 | Raymon Heather |
SVP, Research and Development |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents shares withheld by the Issuer to satisfy income tax obligations associated with the vesting of restricted stock unit awards. |
Common Stock
|
1,521 |
| 2026-02-15 | Horan Christopher |
Chief Tech Operations Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents shares withheld by the Issuer to satisfy income tax obligations associated with the vesting of restricted stock unit awards. |
Common Stock
|
2,187 |
| 2025-12-15 | Aslan Fred |
Director, President and CEO |
Sell↓
Filing footnotes — Common Stock (Direct)
Reported transaction occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on July 23, 2024. |
Common Stock
|
3,187 |
| 2025-12-12 | Horan Christopher |
Chief Tech Operations Officer |
Other↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. 25% of the shares will vest on July 19, 2025, and the remaining shares vest in 36 equal monthly installments thereafter. |
Employee Stock Option (Right to Buy)
|
20,519 |
| 2025-12-12 | Horan Christopher |
Chief Tech Operations Officer |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock units award granted under the Issuer's 2024 Equity Incentive Plan ("RSUs"). On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. |
Common Stock
|
107,156 |
| 2025-12-12 | Horan Christopher |
Chief Tech Operations Officer |
Other↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. 25% of the shares vested on December 31, 2022, and the remaining shares vest in 36 equal monthly installments thereafter. |
Employee Stock Option (Right to Buy)
|
77,519 |
| 2025-12-12 | Aslan Fred |
Director, President and CEO |
Award↑
Filing footnotes — Common Stock (Direct)
Represents restricted stock units award granted under the Issuer's 2024 Equity Incentive Plan ("RSUs"). On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. |
Common Stock
|
869,136 |
| 2025-12-12 | Bush Jennifer |
COO, CLO, Secy, Compliance Off |
Other↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. 25% of the shares vested on February 22, 2022, and the remaining shares vest in 36 equal monthly installments thereafter. |
Employee Stock Option (Right to Buy)
|
41,039 |
| 2025-12-12 | Aslan Fred |
Director, President and CEO |
Other↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. 25% of the shares will vest on July 19, 2025, and the remaining shares vest in 36 equal monthly installments thereafter. |
Employee Stock Option (Right to Buy)
|
113,999 |
| 2025-12-12 | Raymon Heather |
SVP, Research and Development |
Other↓
Filing footnotes — Employee Stock Option (Right to Buy) (Direct)
On December 12, 2025, the Issuer cancelled, pursuant to an option exchange, the options listed in Table II. In exchange for the cancelled options, the Reporting Person received the RSUs reported in Table I. 25% of the shares vested on February 22, 2022, and the remaining shares vest in 36 equal monthly installments thereafter. |
Employee Stock Option (Right to Buy)
|
14,819 |