| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $493,624 | 8 | 57 |
Sells | $600,096 | 6 | 43 |
| HRT FINANCIAL LP | 10 percent owner | 5 | $493,624 | 6 | $600,096 | $-106,472 |
| FOSTER STEVEN M | CEO and President | 1 | $0 | 0 | $0 | $0 |
| Geist Wyatt D. | Chief Innovation Officer | 1 | $0 | 0 | $0 | $0 |
| Grawey Nathaniel A. | Chief Commercial Officer | 1 | $0 | 0 | $0 | $0 |
Tenon Medical, Inc., a medical device company, engages in the development of implant for the treatment of severe lower back pain in the United States. The company offers Catamaran SI-Joint Fusion System, an invasive approach to the sacroiliac joint (SI Joint) using a titanium implant for treatment of the most common types of SI Joint disorders that cause lower back pain. It also provides Catamaran Fixation Device which passes through both the axial and sagittal planes of the ilium and sacrum, transfixing the SI Joint along its longitudinal …
Over the last 12 months, insiders at Tenon Medical, Inc. have bought $493,624 and sold $600,096 worth of Tenon Medical, Inc. stock.
On average, over the past 5 years, insiders at Tenon Medical, Inc. have bought $253,637 and sold $358,500 worth of stock each year.
Highest buying activity among insiders over the last 12 months: HRT FINANCIAL LP (10 percent owner) — $493,624.
The last purchase of 67,925 shares for transaction amount of $246,297 was made by HRT FINANCIAL LP (10 percent owner) on 2026‑09‑10.
| 2026-09-10 | Sale | HRT FINANCIAL LP | 10 percent owner | 65,582 13.8581% | $5.56 | $364,636 | -43.96% | |
| 2026-09-10 | HRT FINANCIAL LP | 10 percent owner | 67,925 9.3605% | $3.63 | $246,297 | -43.96% | ||
| 2026-09-09 | Sale | HRT FINANCIAL LP | 10 percent owner | 60,343 14.365% | $2.88 | $174,009 | +22.13% | |
| 2026-09-09 | HRT FINANCIAL LP | 10 percent owner | 39,508 11.089% | $3.40 | $134,327 | +22.13% | ||
| 2026-09-08 | HRT FINANCIAL LP | 10 percent owner | 707 0.2143% | $3.34 | $2,361 | -11.61% | ||
| 2026-09-02 | Sale | HRT FINANCIAL LP | 10 percent owner | 450 0.0919% | $4.53 | $2,039 | -29.98% | |
| 2026-09-01 | HRT FINANCIAL LP | 10 percent owner | 1,790 0.3645% | $4.57 | $8,180 | -29.20% | ||
| 2026-08-31 | Sale | HRT FINANCIAL LP | 10 percent owner | 1,276 0.4002% | $4.66 | $5,946 | -27.81% | |
| 2026-08-28 | Sale | HRT FINANCIAL LP | 10 percent owner | 7,023 3.1334% | $7.32 | $51,388 | -33.70% | |
| 2026-08-28 | HRT FINANCIAL LP | 10 percent owner | 18,357 6.2474% | $5.58 | $102,458 | -33.70% | ||
| 2026-08-27 | Sale | HRT FINANCIAL LP | 10 percent owner | 419 0.1262% | $4.96 | $2,078 | -33.07% | |
| 2025-11-14 | Grawey Nathaniel A. | Chief Commercial Officer | 101,167 – | $0 | $0 | -40.23% | ||
| 2025-11-14 | Geist Wyatt D. | Chief Innovation Officer | 19,455 – | $0 | $0 | -40.23% | ||
| 2025-11-14 | FOSTER STEVEN M | CEO and President | 19,455 – | $0 | $0 | -40.23% | ||
| 2023-06-14 | VAN DICK STEVEN M | Chief Financial Officer | 50,000 0.4158% | $0.27 | $13,650 | -48.97% | ||
| 2023-05-23 | Sale | GINN RICHARD | Chief Technology Officer | 64,990 0.5735% | $1.26 | $81,887 | -87.80% | |
| 2023-05-23 | Sale | FOSTER STEVEN M | CEO and President | 27,791 0.2453% | $1.26 | $35,017 | -87.80% |
| Grawey Nathaniel A. | Chief Commercial Officer | 239281 48.1978% | $452,241.09 | 1 | 0 | |
| Geist Wyatt D. | Chief Innovation Officer | 157569 31.7388% | $297,805.41 | 1 | 0 | |
| FOSTER STEVEN M | CEO and President | 22878 4.6083% | $43,239.42 | 1 | 1 | |
| HRT FINANCIAL LP | 10 percent owner | 15839 3.1904% | $29,935.71 | 5 | 6 | |
| VAN DICK STEVEN M | Chief Financial Officer | 100416 20.2266% | $189,786.24 | 1 | 0 | <0.0001% |
$9,837,727 | 35 | 7.68% | $94.71M | |
$1,105,104 | 34 | -11.40% | $311.25M | |
$20,867,362 | 27 | -3.90% | $467.11M | |
$58,749,198 | 24 | 16.21% | $100.45M | |
$842,771 | 15 | 6.44% | $214.28M |
| Increased Positions | 9 | +64.29% | 236,868 | +89.47% |
| Decreased Positions | 4 | -28.57% | 8,088 | -3.06% |
| New Positions | 5 | New | 212,266 | New |
| Sold Out Positions | <1 | Sold Out | 80 | Sold Out |
| Total Postitions | 19 | +35.71% | 493,516 | +86.42% |
| Vanguard Group Inc | $113.00 | 1.06% | 116,343 | +116,343 | New | 2025-09-30 |
| Geode Capital Management, Llc | $48.00 | 0.45% | 49,503 | +28,856 | +139.76% | 2025-09-30 |
| Sbi Securities Co., Ltd. | $39.00 | 0.36% | 39,722 | -13 | -0.03% | 2025-09-30 |
| Xtx Topco Ltd | $23.00 | 0.22% | 23,933 | +311 | +1.32% | 2025-09-30 |
| Citadel Advisors Llc | $18.00 | 0.17% | 18,957 | +18,957 | New | 2025-09-30 |
| Spectrum Asset Management, Inc. (Nb/Ca) | $10.00 | 0.1% | 10,650 | -15,000 | -58.48% | 2025-09-30 |
| Tower Research Capital Llc (Trc) | $3.00 | 0.03% | 3,023 | +471 | +18.46% | 2025-09-30 |
| Ubs Group Ag | $2.00 | 0.02% | 2,176 | -9,617 | -81.55% | 2025-09-30 |
| Morgan Stanley | $0 | <0.01% | 188 | 0 | 0% | 2025-09-30 |
| Root Financial Partners, Llc | $0 | <0.01% | 80 | +80 | New | 2025-09-30 |