EX-4.1





 Exhibit 4.1 
  





 
 ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS#

Exhibit 4.1 
COMMON STOCK 
PAR VALUE $0.00001 
COMMON STOCK 
Certificate Number 
ZQ00000000 
GALECTO, INC. 
INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 
Shares 
THIS CERTIFIES THAT 
SEE REVERSE FOR CERTAIN DEFINITIONS 
is the owner of 
THIS CERTIFICATE IS TRANSFERABLE IN CITIES DESIGNATED BY THE TRANSFER 
AGENT, AVAILABLE ONLINE
AT www.computershare.com 
FULLY-PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF 
Galecto, Inc. (hereinafter called the “Company”), transferable on the books of the Company 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 all of the provisions of the Certificate of Incorporation, as amended, and the By-Laws, as
amended, of the Company (copies of which are on file with the Company and with the Transfer Agent), to all of which each holder, by acceptance hereof, assents. This Certificate is not valid unless countersigned and registered by the Transfer Agent
and Registrar. 
Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. 
FACSIMILE SIGNATURE TO COME 
President 
FACSIMILE SIGNATURE TO COME 
DATED DD-MMM-YYYY 
COUNTERSIGNED AND REGISTERED: 
COMPUTERSHARE TRUST COMPANY, N.A. 
TRANSFERâ AGENT ANDâ REGISTRAR, 
By 
AUTHORIZEDâ SIGNATURE 
Secretary 












 



 
GALECTO, INC. 
THE COMPANY WILL FURNISH WITHOUT CHARGE
TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANY AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH
PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE CERTIFICATE OF INCORPORATION OF THE COMPANY, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE
COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST
OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES, TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH
CERTIFICATE. 
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

TEN ENT - as tenants by the entireties 
JT TEN    —as
joint tenants with right of survivorship                and not as tenants in common

Additional abbreviations may also be used though not in the above list. 
UNIF
GIFT MIN ACT 
UNIFa TRF MIN ACT     
Custodian 
(Cust)                 
under Uniform Gifts to Minors Act 
(Minor) 
(Minor) 
Custodian (until age................................) 
under Uniform Transfers to Minors Act 
(Minor) 
(Cust) 
(State) 
PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE 
For value received,

sell, assign and transfer unto 
(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS,
INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) 
of the common stock represented by the within Certificate, and do hereby irrevocably constitute and appoint 
Shares 
to transfer the said stock on the books of the within-named Company with full power of
substitution in the premises. 
Attorney 
Dated: 
Signature: 
Signature: 
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 whatever. 
Signature(s) Guaranteed: Medallion Guarantee Stamp 
THE
SIGNATURE(S) SHOULD 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 S.E.C. RULE 17Ad-15. 
The IRS requires that the named transfer agent (“we”) report the cost basis of certain shares or units
acquired after January 1, 2011. If your shares or units are covered by the legislation, and you requested to sell or transfer the shares or units using a specific cost basis calculation method, then we have processed as you requested. If you
did not specify a cost basis calculation method, then we have defaulted to the first in, first out (FIFO) method. Please consult your tax advisor if you need additional information about cost basis. 
If you do not keep in contact with the issuer or do not have any activity in your account for the time period specified by state law, your property may become subject to state
unclaimed property laws and transferred to the appropriate state.