Sec Form 4 Filing - Springer David @ FTC Solar, Inc. - 2021-08-31

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 Springer David 2. Issuer Name and Ticker or Trading Symbol FTC Solar, Inc. [ FTCI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O FTC SOLAR INC., 9020 N CAPITAL OF TEXAS HWY, SUITE I-260 3. Date of Earliest Transaction (MM/DD/YY) 08/31/2021 (Street) AUSTIN, TX78759 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 08/31/2021 A 33,119 A $ 0 ( 1 ) 7,746,494 D COMMON STOCK 2,474,001 I By Trust ( 2 ) COMMON STOCK 329,867 I By Trust ( 3 ) COMMON STOCK 247,400 I By Trust ( 4 ) COMMON STOCK 247,400 I By Trust ( 5 ) COMMON STOCK 32,987 I By Trust ( 6 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Springer David C/O FTC SOLAR INC. 9020 N CAPITAL OF TEXAS HWY, SUITE I-260 AUSTIN, TX78759 X X Signatures /s/ Jacob D. Wolf, as Attorney-in-Fact 09/02/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person received this grant of securities from the Issuer in respect of his service on the board of directors of the Issuer. ( 2 )These shares are owned directly by the DS 2021 GRAT for the benefit of the Reporting Person. The Reporting Person (a) is the sole trustee, (b) has sole voting and dispositive power with respect to the shares held by the trust and (c) has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the DS 2021 GRAT. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose. ( 3 )These shares are owned directly by the KC 2021 Trust for the benefit of the Reporting Person's fiancee. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the KC 2021 Trust. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose. ( 4 )These shares are owned directly by the JT 2021 Trust. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the JT 2021 Trust. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose. ( 5 )These shares are owned directly by the SF 2021 Trust. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the SF 2021 Trust. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose. ( 6 )These shares are owned directly by the KNS 2021 Trust for the benefit of the Reporting Person's sister. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the KNS 2021 Trust. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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