Transaction · 0001415889-25-003504

RA CAPITAL MANAGEMENT, L.P.

RA CAPITAL MANAGEMENT, L.P., DIR, reported a transaction classified as C at Sionna Therapeutics, Inc. involving 2222084.000000 shares. Reported holdings after the transaction were 2222084.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

CSEC transaction code CDIR
SIONSionna Therapeutics, Inc.
Filing timeFeb 10
Trade dateFeb 10, 2025
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
—
Pre-filing
1mo ago1w ago1d ago
Returns since
7d30d90d180d1y

SION price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
SION since 2025-02-10Filed 576 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
C
Code C
Identifier
0001415889-25-003504
Common Stock
Transaction date
Feb 10, 2025
Filed Feb 10, 2025, 10:04 PM · 0d delay
Shares
2.22M sh
Price unknown
Estimated value
—
Computed from shares × price
Holdings after
2.22M sh
Indirect · See footnotes

Filing warnings

Notes recorded with this filing
1 warning
missing priceThe filing did not provide a usable price per share.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Large Holdings Increase
-4score
Filing-only score

-4

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% YesOther No
Footnotes & amended
  1. F1

    Each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively the "Preferred Stock") converted into shares of Common Stock o…

  2. F2

    Held directly by RA Capital Healthcare Fund, L.P. (the "Fund").

  3. F3

    RA Capital Management, L.P. (the "Adviser") is the investment manager for the Fund, RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separa…

  4. F4

    Held directly by the Nexus Fund.

  5. F5

    Held directly by Nexus Fund III.

  6. F6

    Held directly by the Account.

Original filing · 0001415889-25-003504
Related transactions

0 other filings

Same reporting owner
Recent company activity

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