EX-4.1



 Exhibit 4.1 
  





 
 SPECIMEN SPECIMEN 
NUMBER SHARES 
APVO 
INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE SEE REVERSE FOR CERTAIN DEFINITIONS

C o M M o n s T o C K CUSIP 03835L 10 8 
This CerTifies ThaT: 
SPECIMEN 
is The owner of 
FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, PAR VALUE $0.001 OF 
Aptevo
therApeutics inc. transferable only on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly endorsed. This certificate and the shares represented hereby are issued and shall be held
subject to the laws of the State of Delaware, and the provisions of the Restated Certificate of Incorporation and Amended and Restated By-laws of the Corporation, as now or hereafter amended to which the holder by acceptance hereof assents.

This certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar. WITNESS the seal of the Corporation and the facsimile
signatures of its duly authorized officers. 
COUNTERSIGNED: 
BROADRIDGE
CORPORATE ISSUER SOLUTIONS, INC. 
DATED: 1717 ARCH ST., STE. 1300, PHILADELPHIA, PA 19103 
TRANSFER AGENT 
BY: 
AUTHORIZED SIGNATURE 
PRESIDENT 
TREASURER 







 



 
 The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were
written out in full according to applicable laws or regulations: 
TEN COM—as tenants in common UNIF GIFT MIN ACT—Custodian 
TEN ENT—as tenants by the entireties(Cust)(Minor) 
JT TEN—as joint tenants with right
of under Uniform Gifts to Minors 
survivorship and not as tenants Act 
in
common(State) 
Additional abbreviations may also be used though not in the above list. 
For Value Received, hereby sell, assign and transfer unto 
PLEASE INSERT SOCIAL SECURITY OR
OTHER 
IDENTIFYING NUMBER OF ASSIGNEE 
(PLEASE PRINT OR TYPE NAME AND ADDRESS,
INCLUDING ZIP CODE, OF ASSIGNEE) 
Shares of the stock represented by the within Certificate, and do hereby irrevocably constitute and appoint 
Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. 
Dated 
Signature(s) Guaranteed 
NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY
CHANGE WHATSOEVER. 
By 
The Signature(s) must be guaranteed by an eligible
guarantor institution 
(Banks, Stockbrokers, Savings and Loan Associations and Credit Unions 
with membership in an approved Signature Guarantee Medallion Program), 
pursuant to SEC Rule
17Ad-15. 
THE CORPORATION WILL FURNISH TO ANY STOCKHOLDER, UPON REQUEST AND WITHOUT CHARGE, A FULL STATEMENT OF THE DESIGNATIONS, RELATIVE RIGHTS, PREFERENCES AND
LIMITATIONS OF THE SHARES OF EACH CLASS AND SERIES AUTHORIZED TO BE ISSUED, SO FAR AS THE SAME HAVE BEEN DETERMINED, AND OF THE AUTHORITY, IF ANY, OF THE BOARD TO DIVIDE THE SHARES INTO CLASSES OR SERIES AND TO DETERMINE AND CHANGE THE RELATIVE
RIGHTS, PREFERENCES AND LIMITATIONS OF ANY CLASS OR SERIES. SUCH REQUEST MAY BE MADE TO THE SECRETARY OF THE CORPORATION OR TO THE TRANSFER AGENT NAMED ON THIS CERTIFICATE. 
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