Sec Form 4 Filing - Forsum Michael @ Landsea Homes Corp - 2022-03-14

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 Forsum Michael 2. Issuer Name and Ticker or Trading Symbol Landsea Homes Corp [ LSEA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President and COO (Last) (First) (Middle) C/O LANDSEA HOMES CORPORATION., 660 NEWPORT CENTER DRIVE, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 03/14/2022 (Street) NEWPORT BEACH, CA92660 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, par value $0.0001 03/14/2022 P 27,300 A $ 7.33( 1 ) 423,597 D Common Stock, par value $0.0001 03/15/2022 F 13,357( 2 ) D $ 7.86 410,240( 3 ) D

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 Forsum Michael C/O LANDSEA HOMES CORPORATION. 660 NEWPORT CENTER DRIVE, SUITE 300 NEWPORT BEACH, CA92660 President and COO Signatures /s/ Franco Tenerelli, Attorney-in-fact for Michael Forsum 03/15/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This transaction was executed in multiple trades at prices ranging from $7.22 to $7.34. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. ( 2 )41,436 restricted stock units ("RSUs") previously granted under the Landsea Homes Corporation 2020 Stock Incentive Plan (the "2020 Plan") vested on March 15, 2022. In connection with the vesting and settlement of such RSUs, the Issuer withheld shares of Common Stock to satisfy its tax withholding obligations. The number of shares withheld was based on the closing price per share on March 14, 2022. The withholding of vested shares was approved by the Board of the Directors of the Issuer. ( 3 )Includes (i) 165,746 RSUs previously granted under the 2020 Plan, 41,436 of which will vest on March 15, 2023, 62,155 will vest on March 15, 2024 and the remaining 62,155 will vest on March 15, 2025 and (ii) 59,574 RSUs previously granted under the 2020 Plan that will vest as to one-third on each of April 19, 2022, April 19, 2023 and April 19, 2024. Each RSU represents the right to receive one share of Common Stock.

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).

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