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  4. [Form 4] Arteris, Inc. Insider Trading Activity

Arteris holder sells 100K shares at ~$20.75

A 10% owner of Arteris, Inc. reported a 100,000-share planned sale under a Rule 10b5-1 trading plan, retaining over 8.2 million shares afterward.

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Arteris, Inc. (AIP) had a significant shareholder, Bayview Legacy, LLC, report the sale of 100,000 shares of Common Stock on September 1, 2026. The weighted average sale price was $20.7497 per share, with individual trades between $20.465 and $21.410.

After this transaction, Bayview Legacy, LLC reported 8,229,071 shares of Arteris Common Stock held indirectly. The sale was made pursuant to a Rule 10b5-1 trading plan adopted by K. Charles Janac, as manager of Bayview Legacy, LLC, on December 12, 2025, and Janac is deemed to have voting and dispositive power over these shares.

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Insights

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Insider Bayview Legacy, LLC
Role 10% Owner
Sold 100,000 shs ($2.07M)
Type Security Shares Price Value
Sale Common Stock F1, F2, F3, F4 100,000 $20.7497 $2.07M
Holdings After Transaction: Common Stock — 8,229,071 shares (Indirect, See Footnote)
Footnotes (4)
  1. F1. Transaction made pursuant to a 10b5-1 trading plan that was adopted by K. Charles Janac, as the manager of Bayview Legacy, LLC, on December 12, 2025.
  2. F2. K. Charles Janac, in his individual capacity, has separately filed a Form 4 on the date hereof reporting the same transaction given his beneficial ownership of the reported security through Bayview Legacy, LLC, which he controls as its manager.
  3. F3. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $20.465 to $21.410 inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
  4. F4. K. Charles Janac is the manager of Bayview Legacy, LLC and as such is deemed to have voting and dispositive power over the shares beneficially owned by Bayview Legacy, LLC.
Shares sold 100,000 shares Common Stock sale reported for September 1, 2026
Weighted average sale price $20.7497 per share Average price for the 100,000-share sale
Sale price range $20.465 to $21.410 per share Price range of multiple sale transactions on September 1, 2026
Shares held after transaction 8,229,071 shares Indirect Common Stock holdings of Bayview Legacy, LLC after the sale
Rule 10b5-1 plan adoption date December 12, 2025 Adoption date of the trading plan used for the September 1, 2026 sale
Rule 10b5-1 trading plan regulatory
"Transaction made pursuant to a 10b5-1 trading plan that was adopted"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average sale price financial
"The price reported in Column 4 is a weighted average sale price."
beneficial ownership financial
"given his beneficial ownership of the reported security through Bayview"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
voting and dispositive power financial
"is deemed to have voting and dispositive power over the shares"

FAQ

What insider transaction in AIP stock did Bayview Legacy, LLC report?
Bayview Legacy, LLC reported a sale of 100,000 shares of Arteris, Inc. Common Stock on September 1, 2026. The transaction was reported as an indirect sale by a 10% owner associated with K. Charles Janac.

At what price were the 100,000 AIP shares sold by Bayview Legacy, LLC?
The filing reports a weighted average sale price of $20.7497 per share. The shares were sold in multiple transactions at prices ranging from $20.465 to $21.410, inclusive.

How many AIP shares does Bayview Legacy, LLC hold after this transaction?
Following the reported sale, Bayview Legacy, LLC reported holding 8,229,071 shares of Arteris, Inc. Common Stock indirectly. K. Charles Janac, as manager of Bayview Legacy, LLC, is deemed to have voting and dispositive power over these shares.

Was the AIP share sale by Bayview Legacy, LLC under a Rule 10b5-1 plan?
Yes. The transaction was made pursuant to a Rule 10b5-1 trading plan adopted by K. Charles Janac, as manager of Bayview Legacy, LLC, on December 12, 2025, as disclosed in the footnotes.

What is K. Charles Janac’s relationship to the AIP shares held by Bayview Legacy, LLC?
The filing states that K. Charles Janac is the manager of Bayview Legacy, LLC and is deemed to have voting and dispositive power over the shares beneficially owned by Bayview Legacy, LLC. He also filed a separate Form 4 for the same transaction.

How is the AIP transaction by Bayview Legacy, LLC characterized in the Form 4?
The transaction is characterized as a sale of Common Stock in the open market or a private transaction, involving 100,000 shares on September 1, 2026, reported as an indirect holding with ownership through Bayview Legacy, LLC.

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).
X
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*
Bayview Legacy, LLC
(Last)(First)(Middle)
C/O ARTERIS, INC.
900 E. HAMILTON AVE., SUITE 300
(Street)
CAMPBELL CALIFORNIA 95008
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Arteris, Inc. [ AIP ] 		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)
09/01/2026		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 Stock09/01/2026S(1)(2)100,000D$20.7497(3)8,229,071ISee Footnote(4)
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. Transaction made pursuant to a 10b5-1 trading plan that was adopted by K. Charles Janac, as the manager of Bayview Legacy, LLC, on December 12, 2025.
2. K. Charles Janac, in his individual capacity, has separately filed a Form 4 on the date hereof reporting the same transaction given his beneficial ownership of the reported security through Bayview Legacy, LLC, which he controls as its manager.
3. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $20.465 to $21.410 inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. K. Charles Janac is the manager of Bayview Legacy, LLC and as such is deemed to have voting and dispositive power over the shares beneficially owned by Bayview Legacy, LLC.
Remarks:
/s/ K. Charles Janac09/03/2026
** 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