Delisting risk
Tenon Medical
SI-joint fusion implants delivered through complementary minimally invasive surgical approaches.
$5.00
After-hours close+0.03 (+0.50%)
At close$4.98(−0.90%)
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Breakdown13F · Form 4
Institutions —Insiders 10.72%
Shares outstanding 496.5K · Float 445.3K · 89.7% free float
Institutions13F
No 13F holders on record.
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| SiVantage Inc. | 12.50% | 13D | Aug 8, 2025 ↗ | |
| Armistice Capital, LLC | 9.99% | 54.6K | 13G | Aug 14, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Wyatt D. Geist | officer: Chief Innovation Officer | 18.4K | 3.71% | May 5, 2026 |
| Nathaniel A. Grawey | officer: Chief Commercial Officer | 13.8K | 2.78% | May 5, 2026 |
| Steven M. Foster | director, officer: CEO and President | 7.5K | 1.51% | Aug 4, 2026 |
| Richard Ginn | director, officer: Chief Technology Officer | 4.8K | 0.96% | Aug 4, 2026 |
| Richard Ferrari | director | 3.9K | 0.79% | Aug 4, 2026 |
| Kevin Williamson | officer: Chief Financial Officer | 2.6K | 0.52% | Aug 4, 2026 |
| Kristine M. Jacques | director | 596 | 0.12% | Aug 4, 2026 |
| Ivan Howard | director | 572 | 0.12% | Aug 4, 2026 |
| Stephen Hochschuler | director | 540 | 0.11% | Aug 4, 2026 |
| Robert K. Weigle | director | 522 | 0.11% | Aug 4, 2026 |
1 ten-percent owner holds 874 shares by Form 4, outside the officers-and-directors figure above · 2 people have not refiled in the last 18 months (38 shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Nov 14, 2025 | Nathaniel A. Graweyofficer: Chief Commercial Officer | Purchase · 2 lots | 202,334 | $1.16 | 340,448 |
| Nov 14, 2025 | Wyatt D. Geistofficer: Chief Innovation Officer | Purchase · 2 lots | 38,910 | $1.16 | 177,024 |
| Nov 14, 2025 | Steven M. Fosterdirector, officer: CEO and President | Purchase · 2 lots | 38,910 | $1.16 | 42,333 |
CongressHouse and Senate disclosures
Not reported.