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TNON · Tenon Medical, Inc.

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 inferior-posterior 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 axis. Tenon Medical, Inc. was incorporated in 2012 and is headquartered in Los Gatos, California.

Cap structure and valuation

Cap structure
SP$5.53
SO0.7M
Options0.0M
Warrants20.0M
FD SO20.7M
MC$114.4M
Cash$1.7M
Total debt$4.3M
EV$117.0M
TTM Multiples
EV / Revenue22.0x
EV / EBITDA—
MC / Net Income—
EV / FCF—
MC / FCF—
Ownership & coverage
Institutional4.4%
Insiders5.9%
# Institutions17
Analysts2
Consensus—
Avg target$44.38
Short % float20.7%
Days to cover0.04

MC = SP × FD SO. EV = MC + Debt − Cash. SP = previous yfinance close. Balance-sheet figures as of 2026-08-13. Multiples use TTM (sum of last 4 quarters); shown as "—" when the denominator is zero or negative, or when fewer than four quarters are reported — a partial sum is not a trailing twelve months. Ownership & coverage per Yahoo Finance as of 2026-09-14 — institutional % is 13F-based, so it can lag a quarter and exceed 100% on share-count timing. Short interest per FINRA bi-monthly reporting, as of 2026-08-31; the float denominator can be unreliable on tiny floats.

Financial statements

LTM12/31/2512/31/2412/31/2312/31/22
Total Revenue 5.313.943.282.930.69
Revenue YoY % 34.7%20.4%11.9%323.7%—
Cost of Revenue 1.761.591.571.691.33
Gross Profit 3.552.361.711.24(0.64)
Gross Profit YoY % 50.5%37.8%37.9%293.6%—
Gross Margin % 66.8%59.8%52.2%42.4%(92.8%)
SG&A 14.0613.0012.8713.8015.26
R&D 2.382.152.603.162.83
Operating Expense 16.4415.1515.4816.9718.08
Operating Income (12.89)(12.79)(13.77)(15.73)(18.73)
Operating Income YoY % (0.8%)7.1%12.5%16.0%—
Operating Margin % (242.7%)(324.3%)(420.1%)(537.1%)(2709.8%)
EBITDA (12.57)(12.53)(13.36)(15.53)(18.65)
EBITDA Margin % (236.7%)(317.7%)(407.6%)(530.3%)(2698.6%)
Interest Expense ——0.030.020.35
Other Income / (Expense) (0.81)————
Pretax Income (13.70)(12.56)(13.67)(15.58)(18.92)
Net Income (13.70)(12.56)(13.67)(15.58)(18.92)
Net Margin % (257.9%)(318.4%)(417.2%)(532.1%)(2737.6%)
Diluted EPS -$13.28-$1.70-$11.26-$8.59-$2.36
Basic EPS -$13.28-$1.70-$11.26-$8.59-$2.36
Diluted Avg Shares 0.37.41.21.88.0
Basic Avg Shares 0.37.41.21.88.0

Insider activity (last 2 years)

Date Filed Reporter Relationship Trans. Date Code Shares Price Total Value
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-10 P 31,227 $2.92 $91,183
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-10 P 28,267 $4.02 $113,633
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-10 P 8,431 $4.92 $41,481
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-10 S (65,582) $5.56 -$364,636
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-09 S (50,395) $2.61 -$131,531
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-09 P 39,508 $3.40 $134,327
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-09 S (9,948) $4.27 -$42,478
2026-09-11 HRT FINANCIAL LP 10% Owner 2026-09-08 P 707 $3.34 $2,361
2026-09-10 Williamson Kevin Officer (Chief Financial Officer) 2026-09-09 F (11) $3.45 -$38
2026-09-10 Williamson Kevin Officer (Chief Financial Officer) 2026-09-08 M 30 — $0
2026-09-10 Williamson Kevin Officer (Chief Financial Officer) 2026-09-08 M (30) — $-0
2026-09-08 HRT FINANCIAL LP 10% Owner 2026-09-04 S (1,506) $3.70 -$5,572
2026-09-08 HRT FINANCIAL LP 10% Owner 2026-09-03 P 1,658 $3.98 $6,599
2026-09-03 HRT FINANCIAL LP 10% Owner 2026-09-02 S (450) $4.53 -$2,038
2026-09-03 HRT FINANCIAL LP 10% Owner 2026-09-01 P 1,790 $4.57 $8,180
2026-09-01 HRT FINANCIAL LP 10% Owner 2026-08-31 S (1,276) $4.66 -$5,946
2026-09-01 HRT FINANCIAL LP 10% Owner 2026-08-28 P 12,376 $5.21 $64,479
2026-09-01 HRT FINANCIAL LP 10% Owner 2026-08-28 P 5,981 $6.35 $37,979
2026-09-01 HRT FINANCIAL LP 10% Owner 2026-08-28 S (4,932) $7.07 -$34,869
2026-09-01 HRT FINANCIAL LP 10% Owner 2026-08-28 S (2,091) $7.90 -$16,519
2026-08-31 HRT FINANCIAL LP 10% Owner 2026-08-27 S (419) $4.96 -$2,078
2026-08-04 Williamson Kevin Officer (Chief Financial Officer) 2026-08-03 F (12,978) $0.20 -$2,570
2026-08-04 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-08-03 F (44,809) $0.20 -$8,872
2026-08-04 FOSTER STEVEN M Director, Officer (CEO and President) 2026-08-03 F (41,788) $0.20 -$8,274
2026-08-04 WEIGLE ROBERT K Director 2026-07-31 M 10,732 — $0
2026-08-04 WEIGLE ROBERT K Director 2026-07-31 M (10,732) — $-0
2026-08-04 Jacques Kristine M Director 2026-07-31 M 10,147 — $0
2026-08-04 Jacques Kristine M Director 2026-07-31 M (10,147) — $-0
2026-08-04 HOWARD IVAN Director 2026-07-31 M 10,732 — $0
2026-08-04 HOWARD IVAN Director 2026-07-31 M (10,732) — $-0
2026-08-04 Hochschuler Stephen Director 2026-07-31 M 10,732 — $0
2026-08-04 Hochschuler Stephen Director 2026-07-31 M (10,732) — $-0
2026-08-04 Ferrari Richard Director 2026-07-31 M 64,479 — $0
2026-08-04 Ferrari Richard Director 2026-07-31 M (64,479) — $-0
2026-08-04 Williamson Kevin Officer (Chief Financial Officer) 2026-07-31 M 58,987 — $0
2026-08-04 Williamson Kevin Officer (Chief Financial Officer) 2026-07-31 M (58,987) — $-0
2026-08-04 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-07-31 M 126,577 — $0
2026-08-04 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-07-31 M (126,577) — $-0
2026-08-04 FOSTER STEVEN M Director, Officer (CEO and President) 2026-07-31 M 140,936 — $0
2026-08-04 FOSTER STEVEN M Director, Officer (CEO and President) 2026-07-31 M (140,936) — $-0
2026-05-05 Geist Wyatt D. Officer (Chief Innovation Officer) 2026-05-01 A 136,401 — $0
2026-05-05 Grawey Nathaniel A. Officer (Chief Commercial Officer) 2026-05-01 A 68,201 — $0
2026-03-05 Williamson Kevin Officer (Chief Financial Officer) 2026-03-03 M 1,041 — $0
2026-03-05 Williamson Kevin Officer (Chief Financial Officer) 2026-03-03 M (1,041) — $-0
2026-01-05 Hochschuler Stephen Director 2026-01-05 F (3,327) $0.93 -$3,098
2026-01-05 WEIGLE ROBERT K Director 2026-01-05 F (3,413) $0.93 -$3,174
2026-01-05 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-01-05 F (47,426) $0.93 -$44,111
2026-01-05 Williamson Kevin Director, Officer (Chief Financial Officer) 2026-01-05 F (18,518) $0.93 -$17,244
2026-01-05 HOWARD IVAN Director 2026-01-05 F (3,327) $0.93 -$3,094
2026-01-05 FOSTER STEVEN M Director, Officer (CEO and President) 2026-01-01 M 140,936 — $0
2026-01-05 FOSTER STEVEN M Director, Officer (CEO and President) 2026-01-01 M (140,936) — $-0
2026-01-05 Hochschuler Stephen Director 2026-01-01 M 10,732 — $0
2026-01-05 Hochschuler Stephen Director 2026-01-01 M (10,732) — $-0
2026-01-05 WEIGLE ROBERT K Director 2026-01-01 M 10,732 — $0
2026-01-05 WEIGLE ROBERT K Director 2026-01-01 M (10,732) — $-0
2026-01-05 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-01-01 M 126,577 — $0
2026-01-05 GINN RICHARD Director, Officer (Chief Technology Officer) 2026-01-01 M (126,577) — $-0
2026-01-05 Ferrari Richard Director 2026-01-01 M 64,478 — $0
2026-01-05 Ferrari Richard Director 2026-01-01 M (64,479) — $-0
2026-01-05 Jacques Kristine M Director 2026-01-01 M 10,146 — $0
2026-01-05 Jacques Kristine M Director 2026-01-01 M 583 — $0
2026-01-05 Jacques Kristine M Director 2026-01-01 M (10,146) — $-0
2026-01-05 Jacques Kristine M Director 2026-01-01 M (583) — $-0
2026-01-05 Williamson Kevin Director, Officer (Chief Financial Officer) 2026-01-01 M 58,987 — $0
2026-01-05 Williamson Kevin Director, Officer (Chief Financial Officer) 2026-01-01 M (58,987) — $-0
2026-01-05 HOWARD IVAN Director 2026-01-01 M 10,732 — $0
2026-01-05 HOWARD IVAN Director 2026-01-01 M (10,732) — $-0
2025-12-29 WEIGLE ROBERT K Director 2025-05-22 M 78 — $0
2025-12-29 WEIGLE ROBERT K Director 2025-05-22 M (78) — $-0
2025-12-29 HOWARD IVAN Director 2025-05-22 M 78 — $0
2025-12-29 HOWARD IVAN Director 2025-05-22 M (78) — $-0
2025-12-29 WEIGLE ROBERT K Director 2024-05-22 M 78 — $0
2025-12-29 WEIGLE ROBERT K Director 2024-05-22 M (78) — $-0
2025-12-29 HOWARD IVAN Director 2024-05-22 M 78 — $0
2025-12-29 HOWARD IVAN Director 2024-05-22 M (78) — $-0
2025-12-22 Jacques Kristine M Director 2024-05-08 A 1,750 — $0
2025-12-19 Williamson Kevin Director, Officer (Chief Financial Officer) 2025-09-03 M 2,083 — $0
2025-12-19 Williamson Kevin Director, Officer (Chief Financial Officer) 2025-09-03 M (2,083) — $-0
2025-12-19 Williamson Kevin Director, Officer (Chief Financial Officer) 2024-11-05 A 6,250 — $0
2025-11-18 FOSTER STEVEN M Director, Officer (CEO and President) 2025-11-14 P 19,455 — $0
2025-11-18 FOSTER STEVEN M Director, Officer (CEO and President) 2025-11-14 P 19,455 — $0
2025-11-18 Geist Wyatt D. Officer (Chief Innovation Officer) 2025-11-14 P 19,455 — $0
2025-11-18 Geist Wyatt D. Officer (Chief Innovation Officer) 2025-11-14 P 19,455 — $0
2025-11-18 Grawey Nathaniel A. Officer (Chief Commercial Officer) 2025-11-14 P 101,167 — $0
2025-11-18 Grawey Nathaniel A. Officer (Chief Commercial Officer) 2025-11-14 P 101,167 — $0
2025-10-15 FOSTER STEVEN M Director, Officer (CEO and President) 2025-10-13 A 281,872 — $0
2025-10-15 Hochschuler Stephen Director 2025-10-13 A 21,464 — $0
2025-10-15 WEIGLE ROBERT K Director 2025-10-13 A 21,464 — $0
2025-10-15 GINN RICHARD Director, Officer (Chief Technology Officer) 2025-10-13 A 253,153 — $0
2025-10-15 Ferrari Richard Director 2025-10-13 A 128,957 — $0
2025-10-15 Jacques Kristine M Director 2025-10-13 A 20,293 — $0
2025-10-15 Williamson Kevin Director, Officer (Chief Financial Officer) 2025-10-13 A 117,974 — $0
2025-10-15 HOWARD IVAN Director 2025-10-13 A 21,464 — $0