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$SION All transactions

Sionna Therapeutics, Inc.

A

$ Value

$0

Shares

19,959

Price

$0

Filed

Jun 16

Insider

Name

RA CAPITAL MANAGEMENT, L.P.

Title

CIK

0001346824

Roles

Director 10% Owner

Transaction Details

Transaction Date

2025-06-12

Code

A

Table

Derivative

Ownership

Indirect

Equity Swap

No

Shares After

19,959

Footnotes

This option was granted to Joshua Resnick pursuant to the Issuer's non-employee director compensation policy. The shares underlying the option vest in full upon the earlier of June 12, 2026 or the date of the Issuer's next annual meeting, subject to Dr. Resnick's continued service as a director through such date. | 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. Each of 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 its or his pecuniary interest therein. | Under Dr. Resnick's arrangement with the Adviser, Dr. Resnick holds the option for the benefit of the Fund, the Nexus Fund, the Nexus Fund III, and the Account. Dr. Resnick is obligated to turn over to the Adviser any net cash or stock received upon exercise of the stock option, which will offset advisory fees owed by the Fund, the Nexus Fund, the Nexus Fund III and the Account to the Adviser. The Reporting Person therefore disclaims beneficial ownership of the stock option and underlying Common Stock.

Filing Info

Accession No.

0001415889-25-017421

Form Type

4

Issuer CIK

0002036042

RA CAPITAL MANAGEMENT, L.P.'s History

Date Ticker Type Value
2026-04-22 ACRV A $7.0M
2026-04-20 VOR $2.7M
2026-04-17 VOR $7.5M
2026-04-15 VOR $859K
2026-04-14 VOR $2.5M
2026-04-13 VOR $8.6M
2026-04-10 VOR $13K
2026-04-09 VOR $2.2M
2026-04-08 VOR $5.8M
2026-04-08 VOR $2.2M

Other Insiders at SION (90d)

Insider Bought Sold Last
ORBIMED ADVISORS LLC / Thompson Peter A. $25.4M 2026-04-18