Rubens Ometto Silveira Mello Files Initial Cosan S.A. Ownership
| Field | Detail |
|---|---|
| Company | Mello Rubens Ometto Silveira |
| Form Type | 3 |
| Filed Date | Mar 24, 2026 |
| Risk Level | low |
| Pages | 1 |
| Reading Time | 2 min |
| Sentiment | neutral |
Complexity: simple
Sentiment: neutral
Topics: insider-ownership, form-3, initial-statement, transparency
TL;DR
**Rubens Ometto Silveira Mello just reported his initial stake in Cosan S.A., setting the stage for future insider trading insights.**
AI Summary
Rubens Ometto Silveira Mello, a key figure, filed a Form 3 on March 24, 2026, indicating his initial beneficial ownership in Cosan S.A. (CIK: 0001430162). This filing, required when an insider first acquires shares or becomes an insider, establishes his baseline ownership for future disclosures. For investors, this matters because Mello is a significant insider, and tracking his ownership changes can signal his confidence in Cosan's future performance.
Why It Matters
This filing establishes a baseline for a significant insider's ownership, allowing investors to track future changes in his stake, which can be a strong indicator of insider sentiment.
Risk Assessment
Risk Level: low — A Form 3 filing is a routine disclosure of initial ownership and does not inherently indicate a high risk; it's a transparency requirement.
Analyst Insight
Smart investors should add Rubens Ometto Silveira Mello to their insider tracking watch list for Cosan S.A. to monitor any future Form 4 filings (changes in ownership) for potential signals about the company's prospects.
Key Players & Entities
- Rubens Ometto Silveira Mello (person) — Reporting Owner
- Cosan S.A. (company) — Issuer
- 0001430162 (company) — CIK for Cosan S.A.
- 0002121964 (person) — CIK for Rubens Ometto Silveira Mello
FAQ
What is the purpose of a Form 3 filing?
A Form 3 is an 'Initial statement of beneficial ownership of securities' filed when a person first becomes an insider (officer, director, or 10%+ shareholder) of a company, or when an insider first acquires shares in a company, as indicated by the filing for Rubens Ometto Silveira Mello regarding Cosan S.A. on March 24, 2026.
Who is the issuer mentioned in this filing?
The issuer mentioned in this filing is Cosan S.A., with CIK 0001430162, as stated in the 'Issuer' section of the filing.
Filing Stats: 444 words · 2 min read · ~1 pages · Grade level 9.3 · Accepted 2026-03-24 12:55:39
Filing Documents
- ownership.html (3)
- ownership.xml (3) — 4KB
- 0001292814-26-001710.txt ( ) — 6KB
From the Filing
SEC FORM 3 SEC Form 3 FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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: 3235-0104 Estimated average burden hours per response: 0.5 1. Name and Address of Reporting Person * Mello Rubens Ometto Silveira (Last) (First) (Middle) AVENIDA BRIGADEIRO FARIA LIMA 4100 (Street) SAO PAULO SP 04543132 (City) (State) (Zip) BRAZIL (Country) 2. Date of Event Requiring Statement (Month/Day/Year) 03/18/2026 3. Issuer Name and Ticker or Trading Symbol Cosan S.A. [ CSAN ] 3a. Foreign Trading Symbol [ CSAN3 ] 5. If Amendment, Date of Original Filed (Month/Day/Year) 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below) 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person Table I - Non-Derivative Securities Beneficially Owned 1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 712,702,674 I Aguassanta Participacoes S.A. Common Stock1 109,532,616 I Queluz Holdings Limited Common Stock1 77,640 I Rio das Pedras Acoes Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5) Date Exercisable Expiration Date Title Amount or Number of Shares Explanation of Responses: Remarks: 1 Common stock represented by American Depositary Shares. Each American Depositary Share represents four shares of Common Stock. /s/ Rubens Ometto Silveira Mello 03/24/2026 ** Signature of Reporting Person Date 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 5 (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 3: SEC 1473 (03-26)