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  4. [Form 4] Tenon Medical, Inc. Insider Trading Activity

Tenon Medical holder nets 1,340-share buy

Large shareholder HRT Financial LP reported small net share purchases of Tenon Medical common stock across two early-September 2026 trades.

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Tenon Medical, Inc. (TNON) had insider activity reported by large shareholder HRT Financial LP. On September 1, 2026, HRT purchased 1,790 shares of common stock at $4.57 per share, and on September 2, 2026, it sold 450 shares at $4.53 per share, resulting in a net purchase of 1,340 shares. No Rule 10b5-1 trading plan is reported.

Positive

  • None.

Negative

  • None.
Insider HRT FINANCIAL LP
Role 10% Owner
Bought 1,790 shs ($8K)
Sold 450 shs ($2K)
Type Security Shares Price Value
Sale Common Stock F1 450 $4.53 $2K
Purchase Common Stock F1 1,790 $4.57 $8K
Holdings After Transaction: Common Stock — 1,794 shares (Direct)
Footnotes (1)
  1. F1. 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.
Shares purchased 1,790 shares Common stock purchased on September 1, 2026
Purchase price $4.57 per share Common stock purchase on September 1, 2026
Shares sold 450 shares Common stock sold on September 2, 2026
Sale price $4.53 per share Common stock sale on September 2, 2026
Net shares acquired 1,340 shares Net of reported purchases and sales in this Form 4
ten percent owner regulatory
"HRT Financial LP is identified as a ten percent owner of Tenon Medical"
open market or private transaction financial
"Sale in open market or private transaction"
Rule 10b5-1 regulatory
"No Rule 10b5-1 trading plan is reported for these transactions"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transactions did HRT Financial LP report for TNON?
HRT Financial LP reported a purchase of 1,790 shares of Tenon Medical common stock on September 1, 2026 at $4.57 per share and a sale of 450 shares on September 2, 2026 at $4.53 per share.

Was the overall insider activity in this Form 4 for TNON a net buy or net sell?
The reported insider activity was a net buy of 1,340 shares, reflecting 1,790 shares purchased and 450 shares sold by HRT Financial LP across two transactions in early September 2026.

At what prices did HRT Financial LP trade Tenon Medical (TNON) shares?
HRT Financial LP bought shares at $4.57 per share on September 1, 2026 and sold shares at $4.53 per share on September 2, 2026, both described as open market or private transactions.

Does this TNON Form 4 indicate trades under a Rule 10b5-1 plan?
No. The filing indicates that no Rule 10b5-1 trading plan is reported for the transactions by HRT Financial LP in Tenon Medical common stock.

What is HRT Financial LP’s relationship to Tenon Medical (TNON)?
HRT Financial LP is identified as a ten percent owner of Tenon Medical, Inc., meaning it is a significant shareholder subject to insider reporting obligations such as this Form 4.

What detail does the Form 4 footnote provide about TNON trade prices?
The footnote states that HRT Financial LP will provide, upon request, full information on the number of shares purchased or sold at each separate price to the Commission staff, the issuer, or any security holder of the issuer.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
HRT FINANCIAL LP
(Last)(First)(Middle)
3 WORLD TRADE CENTER, 175 GREENWICH STRE
76TH FLOOR
(Street)
NEW YORK NEW YORK 10007
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Tenon Medical, Inc. [ TNON ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/26/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/01/2026P1,790A$4.57(1)2,244D
Common Stock09/02/2026S450D$4.53(1)1,794D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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.
Adam Nunes09/03/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR