Avexis Inc. (AVXS): RA Capital Management Ups Its Stake

Page 4 of 8 – SEC Filing

CUSIP No. 05366U100

13G


1.

Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).

RA Capital Healthcare Fund, L.P.


2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ¨
(b) ¨

3. SEC Use Only

4. Citizenship or Place of Organization         Delaware

Number of
Shares
Beneficially
Owned by
Each Reporting
Person With
5. Sole Voting Power                         0 shares

6. Shared Voting Power              1,476,084 shares

7. Sole Dispositive Power                 0 shares

8. Shared Dispositive Power      1,476,084 shares

9.

Aggregate Amount Beneficially Owned by Each Reporting Person

1,476,084 shares


10.

Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions)
    ¨


11.

Percent of Class Represented by Amount in Row (9)

5.3%1


12.

Type of Reporting Person (See Instructions)

PN (Limited Partnership)


1
The reporting person is the beneficial owner of 1,476,084 shares of the Issuer’s Common Stock which constitute
approximately 5.3% of the Issuer’s outstanding Common Stock shares. The percentage calculation assumes that there are currently
27,676,288 outstanding shares of Common Stock of the Issuer, based on the Issuer’s Form 10-Q as filed with the Securities
and Exchange Commission (“SEC”) on November 10, 2016.

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