John Mazarakis

CIK: 0001867660

Transaction Breakdown

Open Market Buys (P)8 (40.0%)

High conviction signal

Open Market Sales (S)1 (5.0%)

Position reduction

Option Exercises (M)1 (5.0%)

Derivative conversions

Awards (A)8 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (10.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (3)

REFI

Chicago Atlantic Real Estate Finance, Inc.

DirectorOfficer

LIEN

Chicago Atlantic BDC, Inc.

10% Owner

VREOF

Vireo Growth Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (20 total)

REFI
Chicago Atlantic Real Estate Finance, Inc.
Aug 27, 2026
Purchase(P)
Direct
7.5K shares at avg. $10.67$80K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Aug 26, 2026
Purchase(P)
Direct
40.2K shares at avg. $10.67$429K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Aug 21, 2026
Purchase(P)
Direct
145 shares at avg. $10.67$2K
LIEN
Chicago Atlantic BDC, Inc.
Aug 17, 2026
Purchase(P)
Direct
60K shares at avg. $9.44$566K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Aug 17, 2026
Purchase(P)
Direct
25K shares at avg. $10.25$256K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Apr 20, 2026
Award(A)
Direct
37.1K shares-
VREOF
Vireo Growth Inc.
Dec 29, 2025
Tax Payment(F)
Direct
801.8K shares at avg. $0.53$425K
VREOF
Vireo Growth Inc.
Dec 29, 2025
Tax Payment(F)
Direct
3.5M shares at avg. $0.67$2.3M
VREOF
Vireo Growth Inc.
Dec 17, 2025
Exercise(M)
Restricted stock units
Direct
5.7M shares-
VREOF
Vireo Growth Inc.
Dec 17, 2025
Award(A)
Direct
5.7M shares-
VREOF
Vireo Growth Inc.
Dec 17, 2025
Award(A)
Direct
3.2M shares-
VREOF
Vireo Growth Inc.
Nov 13, 2025
Award(A)
Direct
2M shares-
REFI
Chicago Atlantic Real Estate Finance, Inc.
Oct 16, 2025
Purchase(P)
Direct
8K shares at avg. $12.75$102K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Oct 1, 2025
Purchase(P)
Direct
7.5K shares at avg. $12.43$93K
VREOF
Vireo Growth Inc.
May 9, 2025
Award(A)
Restricted stock units
Direct
19M shares-
VREOF
Vireo Growth Inc.
May 9, 2025
Award(A)
Restricted stock units
Direct
19M shares-
REFI
Chicago Atlantic Real Estate Finance, Inc.
Apr 1, 2025
Award(A)
Direct
28.4K shares-
VREOF
Vireo Growth Inc.
Dec 17, 2024
Award(A)
Direct
3.2M shares-
REFI
Chicago Atlantic Real Estate Finance, Inc.
Nov 8, 2024
Purchase(P)
Direct
2.8K shares at avg. $15.82$44K
REFI
Chicago Atlantic Real Estate Finance, Inc.
Nov 7, 2024
Sale(S)
Direct
2.8K shares at avg. $15.86$44K

		Type	Shares	Price		Ownership
Aug 27, 2026	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	7,530	$10.67	$80,345	Direct
Aug 26, 2026	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	40,181	$10.67	$428,595	Direct
Aug 21, 2026	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	145	$10.67	$1,547	Direct
Aug 17, 2026	LIEN Chicago Atlantic BDC, Inc.	Purchase(P)	60,000	$9.44	$566,400	Direct
Aug 17, 2026	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	25,000	$10.25	$256,325	Direct
Apr 20, 2026	REFI Chicago Atlantic Real Estate Finance, Inc.	Award(A)	37,099	-	$0	Direct
Dec 29, 2025	VREOF Vireo Growth Inc.	Tax Payment(F)	801,849	$0.53	$424,980	Direct
Dec 29, 2025	VREOF Vireo Growth Inc.	Tax Payment(F)	3,502,150	$0.67	$2,346,441	Direct
Dec 17, 2025	VREOF Vireo Growth Inc.	Exercise(M) Restricted stock units	5,700,000	-	-	Direct
Dec 17, 2025	VREOF Vireo Growth Inc.	Award(A)	5,700,000	-	-	Direct
Dec 17, 2025	VREOF Vireo Growth Inc.	Award(A)	3,200,000	-	-	Direct
Nov 13, 2025	VREOF Vireo Growth Inc.	Award(A)	2,037,736	-	-	Direct
Oct 16, 2025	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	8,000	$12.75	$102,000	Direct
Oct 1, 2025	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	7,500	$12.43	$93,225	Direct
May 9, 2025	VREOF Vireo Growth Inc.	Award(A) Restricted stock units	19,000,000	-	-	Direct
May 9, 2025	VREOF Vireo Growth Inc.	Award(A) Restricted stock units	19,000,000	-	-	Direct
Apr 1, 2025	REFI Chicago Atlantic Real Estate Finance, Inc.	Award(A)	28,398	-	-	Direct
Dec 17, 2024	VREOF Vireo Growth Inc.	Award(A)	3,200,000	-	$0	Direct
Nov 8, 2024	REFI Chicago Atlantic Real Estate Finance, Inc.	Purchase(P)	2,779	$15.82	$43,964	Direct
Nov 7, 2024	REFI Chicago Atlantic Real Estate Finance, Inc.	Sale(S)	2,779	$15.86	$44,069	Direct

1-20 of 20 transactions

About Mazarakis John

Mazarakis John (SEC CIK 0001867660) files insider reports with the SEC as Executive Chairman of Chicago Atlantic Real Estate Finance, Inc. (REFI), 10% Owner of Chicago Atlantic BDC, Inc. (LIEN) and Chief Executive Officer of Vireo Growth Inc. (VREOF).

Signal8 holds 14 ownership filings by Mazarakis John (2 Form 3, 12 Form 4), filed between Oct 11, 2024 and Aug 28, 2026. Those filings report 20 transactions, from Nov 7, 2024 to Aug 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Mazarakis John's filings is in MIAMI BEACH, FL.

Recent filings by Mazarakis John

Aug 27, 2026: Open-market purchase of REFI shares (Form 4, code P).
Aug 26, 2026: Open-market purchase of REFI shares (Form 4, code P).
Aug 21, 2026: Open-market purchase of REFI shares (Form 4, code P).
Aug 17, 2026: Open-market purchase of LIEN shares (Form 4, code P).
Aug 17, 2026: Open-market purchase of REFI shares (Form 4, code P).

Other insiders filing for Chicago Atlantic Real Estate Finance, Inc. (REFI)

Sack Peter, Co-Chief Executive Officer
Cappell Anthony, Co-Chief Executive Officer
Konigsberg Brandon, Director
Kite David, President and COO
Silverman Phillip, Chief Financial Officer
Stavola Elizabeth Mary, Director

How to read Form 4 transaction codes