Tenon Medical, Inc. (TNON) Insider Ownership

Historic Insider Ownership Trends

TNON's three largest insider shareholders as of March 23, 2026 are Nathaniel A. Grawey (Chief Commercial Officer, 239.28K shares), Steven M Foster (Ceo And President, 163.81K shares), Wyatt D. Geist (Chief Innovation Officer, 157.57K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Nathaniel A. Grawey Chief Commercial Officer 239,281 0 18 Nov, 2025
Steven M Foster Ceo And President 163,814 0 05 Jan, 2026
Wyatt D. Geist Chief Innovation Officer 157,569 0 18 Nov, 2025
Dick Steven M Van Chief Financial Officer 100,416 0 15 Jun, 2023
Richard Ginn Chief Technology Officer 85,589 0 05 Jan, 2026
Richard Ferrari 70,764 0 05 Jan, 2026
Kevin Williamson Chief Financial Officer 43,593 0 05 Mar, 2026
Kristine M Jacques 10,729 0 05 Jan, 2026
Ivan Howard 8,462 0 05 Jan, 2026
Robert K Weigle 7,552 0 05 Jan, 2026
Frank M Fischer 6,207 0 24 May, 2023

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
03 Mar, 2026 Kevin Williamson Common Stock A 1,041 $0.00 43,593 D M
03 Mar, 2026 Kevin Williamson Restricted Stock Units D 1,041 $0.00 3,126 D M
01 Jan, 2026 Kristine M Jacques Common Stock A 10,146 $0.00 10,146 D M
01 Jan, 2026 Robert K Weigle Common Stock A 10,732 $0.00 10,965 D M
01 Jan, 2026 Steven M Foster Common Stock A 140,936 $0.00 163,814 D M
01 Jan, 2026 Richard Ferrari Common Stock A 64,478 $0.00 70,764 D M
01 Jan, 2026 Kevin Williamson Common Stock A 58,987 $0.00 61,070 D M
01 Jan, 2026 Richard Ginn Common Stock A 126,577 $0.00 133,015 D M
01 Jan, 2026 Ivan Howard Common Stock A 10,732 $0.00 11,789 D M
05 Jan, 2026 Kevin Williamson Common Stock D 18,518 $0.93 42,552 D F
01 Jan, 2026 Kristine M Jacques Common Stock A 583 $0.00 10,729 D M
05 Jan, 2026 Robert K Weigle Common Stock D 3,413 $0.93 7,552 D F
01 Jan, 2026 Steven M Foster Restricted Stock Units D 140,936 $0.00 140,936 D M
05 Jan, 2026 Richard Ginn Common Stock D 47,426 $0.93 85,589 D F
05 Jan, 2026 Ivan Howard Common Stock D 3,327 $0.93 8,462 D F
01 Jan, 2026 Richard Ferrari Restricted Stock Units D 64,479 $0.00 64,479 D M
01 Jan, 2026 Richard Ginn Restricted Stock Units D 126,577 $0.00 126,577 D M
01 Jan, 2026 Kevin Williamson Restricted Stock Units D 58,987 $0.00 58,987 D M
01 Jan, 2026 Kristine M Jacques Restricted Stock Units D 10,146 $0.00 10,147 D M
01 Jan, 2026 Ivan Howard Restricted Stock Units D 10,732 $0.00 10,732 D M