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RA Capital Healthcare Fund LP's Form 4 filing

Sionna Therapeutics, Inc. (SION) · filed Feb 10, 2025

Accession no.
0001415889-25-003504
Filed
Feb 10, 2025, 5:04 PM ET
Trade date
Feb 10, 2025
Filing delay
Same day
Rule 10b5-1 plan
Not checked

This filing lists 6 non-derivative transactions and 10 derivative transactions. Open-market purchases total $20.3M. It was filed on the trade date.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
RA Capital Healthcare Fund LPCIK 0001315082Director, 10% Owner
Ra Capital Management, L.P.CIK 0001346824Director, 10% Owner
Kolchinsky PeterCIK 0001384859Director, 10% Owner
Shah Rajeev M.CIK 0001619841Director, 10% Owner
RA Capital Nexus Fund, L.P.CIK 0001780117Director
RA Capital Nexus Fund III, L.P.CIK 0001883840Director

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Feb 10, 2025Common StockCConversionAcquired+5,021,990–F1–5,900,779Indirect
Feb 10, 2025Common StockCConversionAcquired+527,444–F1–869,651Indirect
Feb 10, 2025Common StockCConversionAcquired+2,222,084–F1–2,222,084Indirect
Feb 10, 2025Common StockCConversionAcquired+179,975–F1–327,808Indirect
Feb 10, 2025Common StockPPurchaseAcquired+1,022,586$18.00+$18,406,5486,923,365Indirect
Feb 10, 2025Common StockPPurchaseAcquired+102,414$18.00+$1,843,4522,324,498Indirect

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Feb 10, 2025Common StockCConversionDisposed−560,642$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−218,375$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−94,486$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−841,716$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−309,069$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−85,489$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−632,244$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−1,475,237$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−2,987,388$0.00$00Indirect
Feb 10, 2025Common StockCConversionDisposed−746,847$0.00$00Indirect

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

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 of the Issuer on a one-for-1.4611 basis upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

Referenced by the price of 4 transactions in Table I.

Remarks

Joshua Resnick, a Partner of the Adviser, serves on the Issuer's board of directors.

Read the full filing on SEC EDGAR (opens in a new tab)