Mark D. Klein

CIK: 0001322402

Transaction Breakdown

Open Market Buys (P)11 (52.4%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (19.0%)

Compensation grants

Other (G, F, J, C, D, …)6 (28.6%)

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

Companies & Roles (1)

NSLR

Neostellar Capital Corp.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (21 total)

NSLR
Neostellar Capital Corp.
Sep 21, 2026
Purchase(P)
Direct
5K shares at avg. $7.91$40K
NSLR
Neostellar Capital Corp.
Aug 10, 2026
Purchase(P)
Direct
26K shares at avg. $9.60$250K
SSSS
SURO CAPITAL CORP.
Jun 15, 2026
Tax Payment(F)
Direct
293.3K shares at avg. $13.56$4.0M
SSSS
SURO CAPITAL CORP.
Jun 12, 2026
Award(A)
Direct
350K shares-
SSSS
SURO CAPITAL CORP.
Apr 22, 2026
Purchase(P)
Direct
2.5K shares at avg. $13.25$33K
SSSS
SURO CAPITAL CORP.
Apr 21, 2026
Purchase(P)
Direct
2.5K shares at avg. $13.08$33K
SSSS
SURO CAPITAL CORP.
Dec 15, 2025
Tax Payment(F)
Direct
17K shares at avg. $9.24$157K
SSSS
SURO CAPITAL CORP.
Dec 10, 2025
Tax Payment(F)
Direct
17K shares at avg. $9.59$163K
SSSS
SURO CAPITAL CORP.
Nov 21, 2025
Award(A)
Direct
174.5K shares-
SSSS
SURO CAPITAL CORP.
Aug 12, 2025
Purchase(P)
Direct
10K shares at avg. $8.45$85K
SSSS
SURO CAPITAL CORP.
Aug 11, 2025
Purchase(P)
Direct
4.6K shares at avg. $8.69$40K
SSSS
SURO CAPITAL CORP.
May 16, 2025
Award(A)
Direct
300K shares-
SSSS
SURO CAPITAL CORP.
May 9, 2025
Purchase(P)
Direct
16.5K shares at avg. $5.26$87K
SSSS
SURO CAPITAL CORP.
Feb 10, 2025
Tax Payment(F)
Direct
32.9K shares at avg. $6.17$203K
SSSS
SURO CAPITAL CORP.
Dec 16, 2024
Tax Payment(F)
Direct
17K shares at avg. $6.02$102K
SSSS
SURO CAPITAL CORP.
Dec 10, 2024
Award(A)
Direct
100K shares-
SSSS
SURO CAPITAL CORP.
Dec 10, 2024
Tax Payment(F)
Direct
21.3K shares at avg. $6.14$131K
SSSS
SURO CAPITAL CORP.
Dec 2, 2024
Purchase(P)
Direct
743 shares at avg. $5.49$4K
SSSS
SURO CAPITAL CORP.
Nov 29, 2024
Purchase(P)
Direct
39K shares at avg. $5.20$203K
SSSS
SURO CAPITAL CORP.
Nov 27, 2024
Purchase(P)
Direct
32.3K shares at avg. $5.10$165K
SSSS
SURO CAPITAL CORP.
Nov 26, 2024
Purchase(P)
Direct
10K shares at avg. $5.03$50K

		Type	Shares	Price		Ownership
Sep 21, 2026	NSLR Neostellar Capital Corp.	Purchase(P)	5,000	$7.91	$39,550	Direct
Aug 10, 2026	NSLR Neostellar Capital Corp.	Purchase(P)	26,040	$9.60	$249,984	Direct
Jun 15, 2026	SSSS SURO CAPITAL CORP.	Tax Payment(F)	293,265	$13.56	$3,976,673	Direct
Jun 12, 2026	SSSS SURO CAPITAL CORP.	Award(A)	350,000	-	$0	Direct
Apr 22, 2026	SSSS SURO CAPITAL CORP.	Purchase(P)	2,500	$13.25	$33,125	Direct
Apr 21, 2026	SSSS SURO CAPITAL CORP.	Purchase(P)	2,500	$13.08	$32,700	Direct
Dec 15, 2025	SSSS SURO CAPITAL CORP.	Tax Payment(F)	17,017	$9.24	$157,237	Direct
Dec 10, 2025	SSSS SURO CAPITAL CORP.	Tax Payment(F)	17,017	$9.59	$163,193	Direct
Nov 21, 2025	SSSS SURO CAPITAL CORP.	Award(A)	174,465	-	-	Direct
Aug 12, 2025	SSSS SURO CAPITAL CORP.	Purchase(P)	10,000	$8.45	$84,500	Direct
Aug 11, 2025	SSSS SURO CAPITAL CORP.	Purchase(P)	4,571	$8.69	$39,722	Direct
May 16, 2025	SSSS SURO CAPITAL CORP.	Award(A)	300,000	-	-	Direct
May 9, 2025	SSSS SURO CAPITAL CORP.	Purchase(P)	16,500	$5.26	$86,790	Direct
Feb 10, 2025	SSSS SURO CAPITAL CORP.	Tax Payment(F)	32,858	$6.17	$202,734	Direct
Dec 16, 2024	SSSS SURO CAPITAL CORP.	Tax Payment(F)	17,017	$6.02	$102,442	Direct
Dec 10, 2024	SSSS SURO CAPITAL CORP.	Award(A)	100,000	-	$0	Direct
Dec 10, 2024	SSSS SURO CAPITAL CORP.	Tax Payment(F)	21,272	$6.14	$130,610	Direct
Dec 2, 2024	SSSS SURO CAPITAL CORP.	Purchase(P)	743	$5.49	$4,079	Direct
Nov 29, 2024	SSSS SURO CAPITAL CORP.	Purchase(P)	39,000	$5.20	$202,800	Direct
Nov 27, 2024	SSSS SURO CAPITAL CORP.	Purchase(P)	32,257	$5.10	$164,511	Direct
Nov 26, 2024	SSSS SURO CAPITAL CORP.	Purchase(P)	10,000	$5.03	$50,300	Direct

1-21 of 21 transactions

About Klein Mark D

Klein Mark D (SEC CIK 0001322402) files insider reports with the SEC as Chairman, CEO and President of Neostellar Capital Corp. (NSLR).

Signal8 holds 14 ownership filings by Klein Mark D, all Form 4s, filed between Nov 29, 2024 and Sep 22, 2026. Those filings report 21 transactions, from Nov 26, 2024 to Sep 21, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Klein Mark D's filings is in NEW YORK, NY.

Recent filings by Klein Mark D

Sep 21, 2026: Open-market purchase of NSLR shares (Form 4, code P).
Aug 10, 2026: Open-market purchase of NSLR shares (Form 4, code P).
Jun 15, 2026: Tax withholding of SSSS shares (Form 4, code F).
Jun 12, 2026: Grant or award of SSSS shares (Form 4, code A).
Apr 22, 2026: Open-market purchase of SSSS shares (Form 4, code P).

Other insiders filing for Neostellar Capital Corp. (NSLR)

LOTT RONALD M., Director
Falk Erik A, Director

How to read Form 4 transaction codes