Sec Form 4 Filing - COLELLA SAMUEL D @ FLUIDIGM CORP - 2019-06-20

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person COLELLA SAMUEL D 2. Issuer Name and Ticker or Trading Symbol FLUIDIGM CORP [ FLDM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) FLUIDIGM CORPORATION, 7000 SHORELINE COURT, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 06/20/2019 (Street) SOUTH SAN FRANCISCO, CA94080 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 06/20/2019 M 5,000 A $ 10.45 88,881 ( 1 ) D Common Stock 06/20/2019 M 3,000 A $ 5.44 91,881 D Common Stock 06/20/2019 M 5,000 A $ 3.43 96,881 D Common Stock 06/20/2019 M 10,600 A $ 5.57 107,481 D Common Stock 5,561 I Colella Family Partners, L.P ( 2 ) Common Stock 69,272 ( 1 ) I Colella Family Exempt Marital Deduction Trust dated 9/21/1992 Common Stock 3,326 I Colella Family Non-Exempt Marital Deduction Trust dated 9/21/1992

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 10.45 06/20/2019 M 5,000 ( 3 ) 08/03/2026 Common Stock 5,000 $ 10.45 0 D Stock Option (Right to Buy) $ 5.44 06/20/2019 M 3,000 ( 4 ) 08/01/2027 Common Stock 3,000 $ 5.44 0 D Stock Option (Right to Buy) $ 3.43 06/20/2019 M 5,000 ( 4 ) 08/01/2027 Common Stock 5,000 $ 3.43 0 D Stock Option (Right to Buy) $ 5.57 06/20/2019 M 10,600 ( 5 ) 05/31/2028 Common Stock 10,600 $ 5.57 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other COLELLA SAMUEL D FLUIDIGM CORPORATION 7000 SHORELINE COURT, SUITE 100 SOUTH SAN FRANCISCO, CA94080 X Signatures /s/ Samuel D. Colella by Nicholas Khadder, Attorney-in-Fact 06/24/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects an aggregate of 15,877 shares that were reported in prior Forms 4 as being directly held and are now being reported as indirectly held. Of such 15,877 shares, (i) 10,877 shares were transferred to the Colella Family Exempt Marital Deduction Trust dated 9/21/1992 (the "Trust") for no consideration on July 25, 2016, and (ii) 5,000 shares were acquired by the Trust in an open market purchase on December 14, 2016, that was erroneously reported as a direct ownership transaction. ( 2 )The shares are held by Colella Family Partners, L.P., of which the Reporting Person is the General Partner. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his proportionate pecuniary interest therein, if any. ( 3 )The Option vested and became exercisable in twelve equal monthly increments and was fully exercisable on August 3, 2017. ( 4 )The Option vested and became exercisable in twelve equal monthly increments and was fully exercisable on August 1, 2018. ( 5 )The Option vested and became exercisable in twelve equal monthly increments and was fully exercisable on May 31, 2019.

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* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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