Exhibit 4.1

CUSIP XXXXXX XX X Holder ID XXXXXXXXXX

Insurance Value 00.1,000,000 Number of Shares 123456

DTC 12345678901234512345678

PO BOX 43004, Providence, RI 02940-3004

Certificate Numbers Num/No Denom. Total.

MR A SAMPLE 1234567890/1234567890 111 DESIGNATION (IF ANY) 1234567890/1234567890 222 ADD 1 1234567890/1234567890 333 ADD 2 1234567890/1234567890 444

ADD 3

ADD 4 1234567890/1234567890 555 1234567890/1234567890 666

Total Transaction 7

016570| 003590|127C|RESTRICTED||4|057-423 NNNNN

COMMON STOCK COMMON STOCK

PAR VALUE $0.001 THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA AND NEW YORK, NY

Certificate Shares

Number * * * * 6 * 6 0 0 0 0 6 6 2 2 0 0 * * * * * * * * * * * ZQ 000000 * * * * 6 0 0 6 2 0 * * * * FLUIDIGM CORPORATION * * * * * 6 0 0 6 2 0 * * *

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE * * * * * * 6 0 0 6 2 0 * *

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is the owner of **600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares*** *600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares**** 600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****6 00620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****60 * * * SIX HUNDRED THOUSAND

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FULLY-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF

Fluidigm Corporation (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.

DATED >

COUNTERSIGNED AND REGISTERED:

COMPUTERSHARE TRUST COMPANY, N.A.

President and Chief Executive Officer TRANSFER AGENT AND REGISTRAR,

Secretary By

AUTHORIZED SIGNATURE

1234567

FLUIDIGM CORPORATION

THE COMPANY WILL FURNISH WITHOUT CHARGE TO EACH STOCKHOLDER 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 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) (Minor) under Uniform Transfers to Minors Act. . . . . . . . . .

(State) Additional abbreviations may also be used though not in the above list.

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

For value received, ____________________________hereby sell, assign and transfer unto

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE)

Shares of the common 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: __________________________________________20__________________ THE SIGNATURE(S) Signature(s) SHOULD BE Guaranteed: GUARANTEED BY Medallion AN ELIGIBLE Guarantee GUARANTOR Stamp INSTITUTION (Banks, SIGNATURE Stockbrokers, GUARANTEE Savings and Loan MEDALLION Associations PROGRAM, and Credit PURSUANT Unions) WITH TO S. E. MEMBERSHIP C. RULE 17Ad-15. IN AN APPROVED

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.