Bjarne Erik Siwert Borg - Sep 29, 2025 Form 4 Insider Report for Safe & Green Development Corp (SGD)

Role: Director, 10%+ Owner
Signature: /s/ Nicolai Brune, Attorney-in-Fact
Stock symbol: SGD
Transactions as of: Sep 29, 2025
Transactions value $: $0
Form type: 4
Date filed: 10/2/2025, 06:39 PM
Previous filing: Aug 20, 2025
Next filing: Oct 22, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Borg Bjarne Erik Siwert	Director, 10%+ Owner	C/O SAFE AND GREEN DEVELOPMENT, CORP.,, 100 BISCAYNE BLVD., SUITE 1201, MIAMI	/s/ Nicolai Brune, Attorney-in-Fact	2025-10-02	0002061388

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SGD	Series A Convertible Preferred Stock	Disposed to Issuer		-486K	-100%		0	Sep 29, 2025	By Index Equity US LLC and Index Resource Equity LLC	F1, F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SGD	Series A Convertible Preferred Stock	Award		+486K			486K	Sep 29, 2025	Common Stock	1.06M		By Index Equity US LLC and Index Resource Equity LLC	F1, F2, F3, F4, F5, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	At the Issuer's Annual Meeting of Stockholders held on September 29, 2025, the Issuer's stockholders approved the issuance of the Issuer's common stock, par value $0.001 per share (the "Common Stock") upon the conversion of the Issuer's Series A Convertible Preferred Stock pursuant to the terms set forth in the Certificate of Designation of Preferences, Rights and Limitations of Series A Convertible Preferred Stock ("Series A Preferred"). Stockholder approval of the conversion feature of the shares of Series A Preferred held by the Reporting Person is being reported herein as a disposition of a non-derivative security to the Issuer and an acquisition of a derivative security from the Issuer. There is no expiration date related to the conversion of the shares of Series A Preferred into shares of Common Stock.
F2	Total includes 485,616 shares of Series A Preferred held by Index Equity US LLC ("IEU") and 150 shares of Series A Preferred held by Index Resource Equity LLC ("IRE"). The Reporting Person is the manager of IEU and the manager of Index Management Services LLC, which is the manager of IRE.
F3	The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
F4	Each share of Series A Preferred is convertible into six shares of the Issuer's Common Stock, subject to compliance with Nasdaq rules.
F5	To maintain the Reporting Person's interest below 19.99% in accordance with Nasdaq rules, as of the date hereof, the shares of Series A Preferred held by the Reporting Person are convertible into 1,060,489 shares of the Issuer's Common Stock (notwithstanding that 485,766 shares of Series A Preferred would otherwise be convertible, at a conversion ratio of six shares of the Issuer's Common Stock for each share of Series A Preferred, into 2,914,596 shares of the Issuer's Common Stock).
F6	The Reporting Person received the shares of Series A Preferred from the Issuer as partial consideration for the Reporting Person's membership interest in Resource Group in connection with the Issuer's acquisition of Resource Group US Holdings LLC ("Resource Group") pursuant to the Membership Interests Purchase Agreement, dated as of February 25, 2025, as amended June 2, 2025.