Exhibit 4.1

	
	THIS CERTIFIES THAT
is the owner of
CUSIP
DATED
COUNTERSIGNED AND REGISTERED:
COMPUTERSHARE TRUST COMPANY, N.A.
TRANSFER AGENT AND REGISTRAR,
FULLY-PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF
Entrada Therapeutics, 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.
COMMON STOCK
PAR VALUE $0.0001
COMMON STOCK
SEE REVERSE FOR CERTAIN DEFINITIONS
Certificate
Number
Shares
..
ENTRADA THERAPEUTICS, INC
INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE
FACSIMILE SIGNATURE TO COME
FACSIMILE SIGNATURE TO COME
President
Secretary
By
AUTHORIZED SIGNATURE
September 22,
2016
D E L A W A R E
C O R P O R AT E
E
N
T
R
A
D
A
THE R A P EUTIC
S
,
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C
ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS#
XXXXXX XX X
DD-MMM-YYYY
**000000******************
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**** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David
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Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****
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**** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David
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Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****
Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sample
**000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares***
*000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****
000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0
00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00
0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000
000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0000
00**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00000
0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000
**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000*
*Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**
Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**S
***ZERO HUNDRED THOUSAND
ZERO HUNDRED AND ZERO***
MR. SAMPLE & MRS. SAMPLE &
MR. SAMPLE & MRS. SAMPLE
ZQ00000000
Certificate Numbers 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 Total Transaction
Num/No.
1 2 3 4 5 6
Denom.
1 2 3 4 5 6
Total
1 2 3 4 5 6 7
MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4
PO BOX 505006, Louisville, KY 40233-5006
CUSIP/IDENTIFIER
XXXXXX XX X
Holder ID
XXXXXXXXXX
Insurance Value
1,000,000.00
Number of Shares
123456
DTC
12345678  123456789012345
THIS CERTIFICATE IS TRANSFERABLE IN
CITIES DESIGNATED BY THE TRANSFER
AGENT, AVAILABLE ONLINE AT
www.computershare.com




    


     


    	
	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.
For value received, ____________________________hereby sell, assign and transfer unto
________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________ Shares
_______________________________________________________________________________________________________________________ Attorney
Dated:  __________________________________________20__________________
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.
PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
(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
to transfer the said stock on the books of the within-named Company with full power of substitution in the premises.
..
ENTRADA THERAPEUTICS, 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.
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 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 ................................................
                                                                                                                                                                                 (Cust)                         (Minor)
TEN ENT   - as tenants by the entireties                                                                     under Uniform Gifts to Minors Act ........................................................
                                                                                                                                                                                                                                              (State)
JT TEN      - as joint tenants with right of survivorship             UNIF TRF MIN ACT   -............................................Custodian (until age ................................)
                          and not as tenants in common                                                                                     (Cust)
                                                                                                                                    .............................under Uniform Transfers to Minors Act ...................                                                                                                                                    (Minor)                                    (State)
Additional abbreviations may also be used though not in the above list.