Schallenberger Mark A. (CIK 1960742) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-18). Recent activity: Sell XTNT (7,709 shares), Buy XTNT (292,253 shares), Buy XTNT (173,469 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-18 | Xtant Medical Holdings, Inc. (XTNT) | Chief Operating Officer | Sell | 7,709 | $4,471 |
| 2025-11-18 | Xtant Medical Holdings, Inc. (XTNT) | Chief Operating Officer | Buy | 292,253 | $0 |
| 2025-01-17 | Xtant Medical Holdings, Inc. (XTNT) | Chief Operations Officer | Buy | 173,469 | $0 |
Source: SEC Form 4 filings · as of 2026-02-18