Mark A. Schallenberger

CIK: 0001960742

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (60.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (40.0%)

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

Companies & Roles (1)

XTNT

Xtant Medical Holdings, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (5 total)

XTNT
Xtant Medical Holdings, Inc.
Aug 15, 2026
Award(A)
Direct
450K shares-
XTNT
Xtant Medical Holdings, Inc.
Aug 15, 2026
Tax Payment(F)
Direct
7.1K shares at avg. $0.31$2K
XTNT
Xtant Medical Holdings, Inc.
Feb 15, 2026
Tax Payment(F)
Direct
7.7K shares at avg. $0.58$4K
XTNT
Xtant Medical Holdings, Inc.
Nov 15, 2025
Award(A)
Direct
292.3K shares-
XTNT
Xtant Medical Holdings, Inc.
Apr 3, 2024
Award(A)
Direct
173.5K shares-

		Type	Shares	Price		Ownership
Aug 15, 2026	XTNT Xtant Medical Holdings, Inc.	Award(A)	450,000	-	$0	Direct
Aug 15, 2026	XTNT Xtant Medical Holdings, Inc.	Tax Payment(F)	7,070	$0.31	$2,192	Direct
Feb 15, 2026	XTNT Xtant Medical Holdings, Inc.	Tax Payment(F)	7,709	$0.58	$4,471	Direct
Nov 15, 2025	XTNT Xtant Medical Holdings, Inc.	Award(A)	292,253	-	-	Direct
Apr 3, 2024	XTNT Xtant Medical Holdings, Inc.	Award(A)	173,469	-	$0	Direct

1-5 of 5 transactions

About Schallenberger Mark A.

Schallenberger Mark A. (SEC CIK 0001960742) files insider reports with the SEC as Chief Operating Officer of Xtant Medical Holdings, Inc. (XTNT).

Signal8 holds 4 ownership filings by Schallenberger Mark A., all Form 4s, filed between Jan 17, 2025 and Aug 18, 2026. Those filings report 5 transactions, from Apr 3, 2024 to Aug 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Schallenberger Mark A.'s filings is in BELGRADE, MT.

Recent filings by Schallenberger Mark A.

Aug 15, 2026: Grant or award of XTNT shares (Form 4, code A).
Aug 15, 2026: Tax withholding of XTNT shares (Form 4, code F).
Feb 15, 2026: Tax withholding of XTNT shares (Form 4, code F).
Nov 15, 2025: Grant or award of XTNT shares (Form 4, code A).
Apr 3, 2024: Grant or award of XTNT shares (Form 4, code A).

Other insiders filing for Xtant Medical Holdings, Inc. (XTNT)

Lipschultz Tyler, Director
BAKEWELL JOHN K, Director
Beeson Jonn R., Director
JAIN ABHINAV, Director
Vizirgianakis Stavros G., Director
Neils Scott C, CFO and Assistant Secretary

How to read Form 4 transaction codes