TNON · Tenon Medical, Inc. · Insider Trading
Substantial doubt about the company's ability to continue as a going concern.
“There is substantial doubt about the Company's ability to continue as a going concern for one year after the date that these financial statements are issued.”View the 10-Q filed Aug 13, 2026
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
Insider Sentiment Score
Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-09-10 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
65,582 |
| 2026-09-10 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
28,267 |
| 2026-09-10 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
8,431 |
| 2026-09-10 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
31,227 |
| 2026-09-09 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
39,508 |
| 2026-09-09 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
50,395 |
| 2026-09-09 | Williamson Kevin |
Chief Financial Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
11 |
| 2026-09-09 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
9,948 |
| 2026-09-08 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
707 |
| 2026-09-08 | Williamson Kevin |
Chief Financial Officer |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 30 restricted stock units ("RSUs") granted to the reporting person on November 5, 2024 into 30 shares of common stock of the Issuer on September 8, 2026, as adjusted for 1-for-35 reverse stock split of the Issuer's common stock effected on August 10, 2026. |
Common Stock
|
30 |
| 2026-09-08 | Williamson Kevin |
Chief Financial Officer |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 30 restricted stock units ("RSUs") granted to the reporting person on November 5, 2024 into 30 shares of common stock of the Issuer on September 8, 2026, as adjusted for 1-for-35 reverse stock split of the Issuer's common stock effected on August 10, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
30 |
| 2026-09-04 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
1,506 |
| 2026-09-03 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
1,658 |
| 2026-09-02 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
450 |
| 2026-09-01 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
1,790 |
| 2026-08-31 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
1,276 |
| 2026-08-28 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
2,091 |
| 2026-08-28 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
5,981 |
| 2026-08-28 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
4,932 |
| 2026-08-28 | HRT FINANCIAL LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. |
Common Stock
|
12,376 |
| 2026-08-27 | HRT FINANCIAL LP |
10% Owner |
Sell↓
Filing footnotes — Common Stock (Direct)
We will provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Resulting in short sales. |
Common Stock
|
419 |
| 2026-08-03 | FOSTER STEVEN M |
Director, CEO and President |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
41,788 |
| 2026-08-03 | Williamson Kevin |
Chief Financial Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
12,978 |
| 2026-08-03 | GINN RICHARD |
Director, Chief Technology Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
44,809 |
| 2026-07-31 | Williamson Kevin |
Chief Financial Officer |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 58,987 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 58,987 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
58,987 |
| 2026-07-31 | Ferrari Richard |
Director |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 64,479 restricted stock units granted to the reporting person on October 13, 2025 into 64,479 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
64,479 |
| 2026-07-31 | FOSTER STEVEN M |
Director, CEO and President |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 140,936 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 140,936 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
140,936 |
| 2026-07-31 | WEIGLE ROBERT K |
Director |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
10,732 |
| 2026-07-31 | HOWARD IVAN |
Director |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
10,732 |
| 2026-07-31 | WEIGLE ROBERT K |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
10,732 |
| 2026-07-31 | Jacques Kristine M |
Director |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 10,147 restricted stock units granted to the reporting person on October 13, 2025 into 10,147 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
10,147 |
| 2026-07-31 | HOWARD IVAN |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
10,732 |
| 2026-07-31 | GINN RICHARD |
Director, Chief Technology Officer |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 126,577 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 126,577 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
126,577 |
| 2026-07-31 | GINN RICHARD |
Director, Chief Technology Officer |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 126,577 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 126,577 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
126,577 |
| 2026-07-31 | Hochschuler Stephen |
Director |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. |
Common Stock
|
10,732 |
| 2026-07-31 | Williamson Kevin |
Chief Financial Officer |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 58,987 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 58,987 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
58,987 |
| 2026-07-31 | Jacques Kristine M |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 10,147 restricted stock units granted to the reporting person on October 13, 2025 into 10,147 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
10,147 |
| 2026-07-31 | FOSTER STEVEN M |
Director, CEO and President |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 140,936 restricted stock units ('RSUs') granted to the reporting person on October 13, 2025 into 140,936 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
140,936 |
| 2026-07-31 | Hochschuler Stephen |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 10,732 restricted stock units granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
10,732 |
| 2026-07-31 | Ferrari Richard |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 64,479 restricted stock units granted to the reporting person on October 13, 2025 into 64,479 shares of common stock of the Issuer on July 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
64,479 |
| 2026-05-01 | Geist Wyatt D. |
Chief Innovation Officer |
Award↑
Filing footnotes — Common stock (Indirect)
On May 1, 2026, Tenon Medical, Inc. ("Registrant") issued 276,228 shares of its common stock to SiVantage, Inc. ("SiVantage") pursuant to the Asset Purchase Agreement, dated August 1, 2025, by and between the Registrant and SiVantage, in connection with the achievement of a certain milestone set forth therein. The securities reported herein represent the reporting person's indirect pecuniary interest in the shares held by SiVantage based on the reporting person's 49.38% equity interest in SiVantage. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest. |
Common stock
(I)
|
136,401 |
| 2026-05-01 | Grawey Nathaniel A. |
Chief Commercial Officer |
Award↑
Filing footnotes — Common stock (Indirect)
On May 1, 2026, Tenon Medical, Inc. ("Registrant") issued 276,228 shares of its common stock to SiVantage, Inc. ("SiVantage") pursuant to the Asset Purchase Agreement, dated August 1, 2025, by and between the Registrant and SiVantage, in connection with the achievement of a certain milestone set forth therein. The securities reported herein represent the reporting person's indirect pecuniary interest in the shares held by SiVantage based on the reporting person's 24.69% equity interest in SiVantage. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest. |
Common stock
(I)
|
68,201 |
| 2026-03-03 | Williamson Kevin |
Chief Financial Officer |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 1,041 restricted stock units ("RSUs") granted to the reporting person on November 5, 2024 into 1,041 shares of common stock of the Issuer on March 3, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
1,041 |
| 2026-03-03 | Williamson Kevin |
Chief Financial Officer |
Convert↑
Filing footnotes — Common Stock (Direct)
Represents conversion of 1,041 restricted stock units ("RSUs") granted to the reporting person on November 5, 2024 into 1,041 shares of common stock of the Issuer on March 3, 2026. |
Common Stock
|
1,041 |
| 2026-01-05 | GINN RICHARD |
Director, Chief Technology Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
47,426 |
| 2026-01-05 | Williamson Kevin |
Chief Financial Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
18,518 |
| 2026-01-05 | WEIGLE ROBERT K |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
3,413 |
| 2026-01-05 | HOWARD IVAN |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
3,327 |
| 2026-01-05 | Hochschuler Stephen |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
These shares were sold to pay tax liability associated with the vesting of RSUs. |
Common Stock
|
3,327 |
| 2026-01-01 | HOWARD IVAN |
Director |
Convert↓
Filing footnotes — Restricted Stock Units (Direct)
Represents conversion of 10,732 restricted stock units ("RSUs") granted to the reporting person on October 13, 2025 into 10,732 shares of common stock of the Issuer on January 1, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. |
Restricted Stock Units
|
10,732 |