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Nasdaq · USD

COAG

Hemab Therapeutics Holdings, Inc.

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Tapewire entity
4476
SEC CIK
0002114044
Parsed reports
22

Last 12 months

Inside the activity.

16 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 2026140
Jun 202620
Jul 202600
Aug 202600
Sep 202600
Oct 202600

Latest available

Insider transactions

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

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

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
September 24, 2026 Filed Sep 25, 2026 20:45 UTC
Walbert KeliDirector
GrantStock Option (Right to Buy) · Derivative 36,000 $0.00 Strike: $35.72 $0.00
Disclosure

SEC source: 0001193125-26-402936 · ownership.xml · derivative · entry 1

Walbert Keli · CIK 0002051489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,000

Underlying: Common Stock · 36,000 shares

Expires 2036-09-23

F1 · derivative.exercise_date: This option was granted on September 24, 2026. The shares underlying the option are scheduled to vest over three years in equal monthly installments from September 24, 2026 through September 24, 2029, subject to continuous service.

Read SEC document
June 16, 2026 Filed Jun 17, 2026 22:24 UTC PurchaseCommon Stock 61,523 $24.98 $1,536,844.54
Disclosure

SEC source: 0001231919-26-000665 · form4-06172026_100616.xml · nonDerivative · entry 2

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,444,637

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.65 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
June 15, 2026 Filed Jun 17, 2026 22:24 UTC PurchaseCommon Stock 6,146 $24.89 $152,973.94
Disclosure

SEC source: 0001231919-26-000665 · form4-06172026_100616.xml · nonDerivative · entry 1

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,383,114

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.55 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 20, 2026 Filed May 21, 2026 20:20 UTC PurchaseCommon Stock 996 $24.94 $24,840.24
Disclosure

SEC source: 0001231919-26-000521 · form4-05212026_080553.xml · nonDerivative · entry 2

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,376,968

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.85 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 19, 2026 Filed May 21, 2026 20:20 UTC PurchaseCommon Stock 3,802 $24.97 $94,935.94
Disclosure

SEC source: 0001231919-26-000521 · form4-05212026_080553.xml · nonDerivative · entry 1

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,375,972

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.86 to $25.00 inclusive. The Reporting 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 12, 2026 Filed May 14, 2026 21:21 UTC PurchaseCommon Stock 6,387 $24.90 $159,036.30
Disclosure

SEC source: 0001231919-26-000495 · form4-05142026_090553.xml · nonDerivative · entry 1

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,372,170

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.70 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 11, 2026 Filed May 11, 2026 21:44 UTC PurchaseCommon Stock 25,720 $25.00 $643,000.00
Disclosure

SEC source: 0001231919-26-000475 · form4-05112026_090554.xml · nonDerivative · entry 5

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,365,783

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.93 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 11, 2026 Filed May 11, 2026 21:44 UTC PurchaseCommon Stock 14,149 $24.47 $346,226.03
Disclosure

SEC source: 0001231919-26-000475 · form4-05112026_090554.xml · nonDerivative · entry 4

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,340,063

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.93 to $24.90 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 08, 2026 Filed May 11, 2026 21:44 UTC PurchaseCommon Stock 1,483 $24.98 $37,045.34
Disclosure

SEC source: 0001231919-26-000475 · form4-05112026_090554.xml · nonDerivative · entry 3

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,325,914

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.80 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 07, 2026 Filed May 11, 2026 21:44 UTC PurchaseCommon Stock 1,985 $24.95 $49,525.75
Disclosure

SEC source: 0001231919-26-000475 · form4-05112026_090554.xml · nonDerivative · entry 2

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,324,431

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.84 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 07, 2026 Filed May 11, 2026 21:44 UTC PurchaseCommon Stock 7,921 $24.34 $192,797.14
Disclosure

SEC source: 0001231919-26-000475 · form4-05112026_090554.xml · nonDerivative · entry 1

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · 10% owner

Kolchinsky Peter · CIK 0001384859 · 10% owner

Shah Rajeev M. · CIK 0001619841 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,322,446

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.775 to $24.685 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 06, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 53,407 $24.83 $1,326,095.81
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 9

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,314,525

F8 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.505 to $25.00 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 06, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 14,611 $23.77 $347,303.47
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 8

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,261,118

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $23.495 to $24.455 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 05, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 10,268 $25.00 $256,700.00
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 7

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,246,507

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 05, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 87,143 $24.59 $2,142,846.37
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 6

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,236,239

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.00 to $24.9994 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.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 04, 2026 Filed May 4, 2026 20:20 UTC ConversionSeries C Preferred Stock · Derivative 817 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-204048 · ownership.xml · derivative · entry 5

MARAGANORE JOHN · CIK 0001180432 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,974 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: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over three years in equal monthly installments from January 1, 2026 through January 1, 2029.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock and Series C Preferred Stock converted into 22 shares of common stock without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock and Series C Preferred Stock converted into 22 shares of common stock without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

Read SEC document
May 04, 2026 Filed May 4, 2026 20:20 UTC ConversionSeries B Preferred Stock · Derivative 817 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-204048 · ownership.xml · derivative · entry 4

MARAGANORE JOHN · CIK 0001180432 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,974 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: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over three years in equal monthly installments from January 1, 2026 through January 1, 2029.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock and Series C Preferred Stock converted into 22 shares of common stock without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock and Series C Preferred Stock converted into 22 shares of common stock without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

Read SEC document
May 04, 2026 Filed May 4, 2026 20:20 UTC ConversionCommon Stock 17,974 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-204048 · ownership.xml · nonDerivative · entry 2

MARAGANORE JOHN · CIK 0001180432 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,948

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: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over three years in equal monthly installments from January 1, 2026 through January 1, 2029.

Read SEC document
May 04, 2026 Filed May 4, 2026 20:20 UTC ConversionCommon Stock 17,974 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-204048 · ownership.xml · nonDerivative · entry 1

MARAGANORE JOHN · CIK 0001180432 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,974

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: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over three years in equal monthly installments from January 1, 2026 through January 1, 2029.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries C Preferred Stock · Derivative 10,054 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 15

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 221,188 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.

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F5 · ownership.nature: Held directly by Nexus Fund IV.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries C Preferred Stock · Derivative 56,972 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 14

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,253,384 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries B Preferred Stock · Derivative 18,146 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 13

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 399,212 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Held directly by Nexus Fund II.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries B Preferred Stock · Derivative 42,341 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 12

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 931,502 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries A Preferred Stock · Derivative 27,720 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 11

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 609,840 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Held directly by Nexus Fund II.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionSeries A Preferred Stock · Derivative 64,680 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · derivative · entry 10

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,422,960 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 133,750 $18.00 $2,407,500.00
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 5

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 354,938

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F5 · ownership.nature: Held directly by Nexus Fund IV.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
PurchaseCommon Stock 2,541,250 $18.00 $45,742,500.00
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 4

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,149,096

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionCommon Stock 221,188 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 3

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 221,188

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

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F5 · ownership.nature: Held directly by Nexus Fund IV.

Read SEC document
May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionCommon Stock 1,009,052 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 2

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,009,052

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

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Held directly by Nexus Fund II.

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May 04, 2026 Filed May 6, 2026 23:16 UTC
RA CAPITAL MANAGEMENT, L.P.Director · 10% owner
RA Capital Healthcare Fund LPDirector · 10% owner
Kolchinsky PeterDirector · 10% owner
Shah Rajeev M.Director · 10% owner
ConversionCommon Stock 3,607,846 Not disclosed Not disclosed
Disclosure

SEC source: 0001231919-26-000457 · form4-05062026_110527.xml · nonDerivative · entry 1

RA CAPITAL MANAGEMENT, L.P. · CIK 0001346824 · Director · 10% owner

RA Capital Healthcare Fund LP · CIK 0001315082 · Director · 10% owner

RA Capital Nexus Fund II, L.P. · CIK 0001825376 · Director

RA Capital Nexus Fund IV, L.P. · CIK 0002053586 · Director

Kolchinsky Peter · CIK 0001384859 · Director · 10% owner

Shah Rajeev M. · CIK 0001619841 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,607,846

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

F1 · price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F2 · ownership.nature: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus II Fund, L.P. (the "Nexus Fund II") and RA Capital Nexus IV Fund, L.P. (the "Nexus Fund IV"). 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 II, the Nexus Fund IV, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Held directly by the Fund.

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May 04, 2026 Filed May 6, 2026 20:55 UTC ConversionSeries C Preferred Stock · Derivative 32,695 $0.00 $0.00
Disclosure

SEC source: 0001388325-26-000023 · form4-05062026_080518.xml · derivative · entry 5

Novo Holdings A/S · CIK 0001388325 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 719,290 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 Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

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May 04, 2026 Filed May 6, 2026 20:55 UTC ConversionSeries B Preferred Stock · Derivative 62,121 $0.00 $0.00
Disclosure

SEC source: 0001388325-26-000023 · form4-05062026_080518.xml · derivative · entry 4

Novo Holdings A/S · CIK 0001388325 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,366,662 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 Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

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May 04, 2026 Filed May 6, 2026 20:55 UTC ConversionSeries A Preferred Stock · Derivative 71,866 $0.00 $0.00
Disclosure

SEC source: 0001388325-26-000023 · form4-05062026_080518.xml · derivative · entry 3

Novo Holdings A/S · CIK 0001388325 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,581,052 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 Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

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May 04, 2026 Filed May 6, 2026 20:55 UTC ConversionSeries Seed Preferred Stock · Derivative 23,343 $0.00 $0.00
Disclosure

SEC source: 0001388325-26-000023 · form4-05062026_080518.xml · derivative · entry 2

Novo Holdings A/S · CIK 0001388325 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 513,546 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 Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.exercise_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

F1 · derivative.expiration_date: Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

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May 04, 2026 Filed May 6, 2026 20:55 UTC ConversionCommon Stock 4,180,550 Not disclosed Not disclosed
Disclosure

SEC source: 0001388325-26-000023 · form4-05062026_080518.xml · nonDerivative · entry 1

Novo Holdings A/S · CIK 0001388325 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,180,550

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 Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 22-for-1 basis, and had no expiration date.

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April 30, 2026 Filed May 4, 2026 20:18 UTC
Madigan CatherineChief Medical Officer
GrantStock Option (Right to Buy) · Derivative 49,016 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0001193125-26-204041 · ownership.xml · derivative · entry 2

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,016

Underlying: Common Stock · 49,016 shares

Expires 2036-04-29

F2 · derivative.exercise_date: This option was granted on April 30, 2026. The shares underlying the option will vest over four years in equal monthly installments from May 1, 2026 through May 1, 2030.

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April 30, 2026 Filed May 4, 2026 20:16 UTC GrantStock Option (Right to Buy) · Derivative 49,016 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0001193125-26-204033 · ownership.xml · derivative · entry 2

Behrndt-Eriksen Mads Nikolaj · CIK 0002128919 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,016

Underlying: Common Stock · 49,016 shares

Expires 2036-04-29

F2 · derivative.exercise_date: This option was granted on April 30, 2026. The shares underlying the option will vest over four years in equal monthly installments from May 1, 2026 through May 1, 2030.

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January 29, 2026 Filed May 4, 2026 20:20 UTC GrantWarrants (Right to Buy) · Derivative 107,338 $0.00 Strike: $6.00 $0.00
Disclosure

SEC source: 0001193125-26-204048 · ownership.xml · derivative · entry 3

MARAGANORE JOHN · CIK 0001180432 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,338

Underlying: Common Stock · 107,338 shares

Expires 2036-01-28

F1 · derivative.exercise_date: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over three years in equal monthly installments from January 1, 2026 through January 1, 2029.

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January 29, 2026 Filed May 4, 2026 20:18 UTC
Madigan CatherineChief Medical Officer
GrantWarrants (Right to Buy) · Derivative 145,134 $0.00 Strike: $6.00 $0.00
Disclosure

SEC source: 0001193125-26-204041 · ownership.xml · derivative · entry 1

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,134

Underlying: Common Stock · 145,134 shares

Expires 2036-01-28

F1 · derivative.exercise_date: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over four years, with 25% of the shares vesting on January 1, 2027 and the remaining shares vesting in equal monthly installments thereafter.

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January 29, 2026 Filed May 4, 2026 20:16 UTC GrantWarrants (Right to Buy) · Derivative 195,206 $0.00 Strike: $6.00 $0.00
Disclosure

SEC source: 0001193125-26-204033 · ownership.xml · derivative · entry 1

Behrndt-Eriksen Mads Nikolaj · CIK 0002128919 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,206

Underlying: Common Stock · 195,206 shares

Expires 2036-01-28

F1 · derivative.exercise_date: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over four years, with 25% of the shares vesting on January 1, 2027 and the remaining shares vesting in equal monthly installments thereafter.

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