Mark A. Schallenberger
Chief Operations Officer, Xtant Medical (United States).
Companies
- Xtant Medical (United States)Chief operating officer Nov 18, 2025 to now1
- Xtant Medical (United States)Chief Operations Officer Jan 18, 2023 to Jan 17, 20252
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
Xtant Medical (United States) XTNT1,106,087 shares3$328.0K at $0.30Aug 15, 2026
As of each latest filing. The line shows shares held over time.
Recent filings
- Aug 15, 2026Shares withheld for tax 7,070 shares at $0.31 of Xtant Medical (United States)3
- Aug 15, 2026Granted 450,000 shares of Xtant Medical (United States)3
- Feb 15, 2026Shares withheld for tax 7,709 shares at $0.58 of Xtant Medical (United States)4
- Nov 15, 2025Granted 292,253 shares of Xtant Medical (United States)5
- Apr 3, 2024Granted 177,551 shares of Xtant Medical (United States)6
- Apr 3, 2024Granted 173,469 shares of Xtant Medical (United States)7
- Aug 15, 2023Granted 116,144 shares of Xtant Medical (United States)8
- Feb 15, 2023Granted 89,000 shares of Xtant Medical (United States)9
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2
- 3
- 4SEC EDGARForm 4 filed Feb 18, 2026
- 5SEC EDGARForm 4 filed Nov 18, 2025
- 6SEC EDGARForm 4 filed Apr 5, 2024
- 7SEC EDGARForm 4 filed Jan 17, 2025
- 8SEC EDGARForm 4 filed Aug 17, 2023
- 9SEC EDGARForm 4 filed Feb 17, 2023