$TNON

$2.16 -$0.05 (2.05%) Close

$TNON Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 667.0K shares outstanding

Who owns TNON?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 296.7%

SiVantage Inc. 147.9% · Warberg Asset Management LLC 64.5%

Institutional ownership

100.0%

+44.9 pts vs last qtr

Institutional holders

+5 vs last qtr

Net shares bought

+601.2K

by institutions in Q2 2026

New / sold out

5 / 0

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Warberg Asset Management LLC NEW +430.4K
Armistice Capital, LLC NEW +172.1K

Biggest sellers in Q2 2026

Geode Capital Management, LLC −86.9K
Citigroup Inc −8.1K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Tenon Medical Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2022–FY2025

+821.8%

+109.68% a year

Each share's claim on the business

−89.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $12.6M

over 4 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years14% Under 1 year86%

Quarterly turnover

108.8%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting TNON on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
WA Warberg Asset Management LLC	430.4K	64.52%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding430.4K (Q2'26) Change over 8 quarters+430.4K Share of the company64.520% Warberg Asset Management LLC's full portfolio →
AC Armistice Capital, LLC	172.1K	25.80%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding172.1K (Q2'26) Change over 8 quarters+172.1K Share of the company25.800% Armistice Capital, LLC's full portfolio →

Warberg Asset Management LLC

430.4K

% of company

64.52%

Change vs last qtr

NEW

Held since

Q2 '26

Armistice Capital, LLC

172.1K

% of company

25.80%

Change vs last qtr

NEW

Held since

Q2 '26

15 more super investors behind a free account

See every manager holding Tenon Medical Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting TNON on Form N-PORT; together they hold 32.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$89.5K	129.7K	19.44%	0.00%	May 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$23.4K	71.7K	10.75%	0.00%	June 30, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$89.5K

% of company

19.44%

% of the fund

0.00%

As of

May 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$23.4K

% of company

10.75%

% of the fund

0.00%

As of

June 30, 2026

3 more funds behind a free account

See every fund holding Tenon Medical Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
S SiVantage Inc. 5%+ holder 13D · 12.5%	986.5K	147.89%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company147.890% Disclosed stake13D · 12.5% View the 13D/G filing →
GW Geist Wyatt D. Insider	37.9K	5.69%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company5.690% Geist Wyatt D.'s insider activity →

SiVantage Inc.

5%+ holder13D · 12.5%

986.5K

% of company

147.89%

Change vs last qtr

—

Held since

—

Geist Wyatt D.

Insider

37.9K

% of company

5.69%

Change vs last qtr

—

Held since

—

9 more holders behind a free account

See every insider and 5%+ holder of Tenon Medical Inc.

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