Companies: 10,795·Total market cap: $144.5T
Cosan S.A.

Cosan S.A.

CSANNYSEEnergy● Active
$2.68
$-0.12(-4.12%)
Market Cap$2.6B
P/E Ratio—
52W High$6.22
52W Low$2.66
Insider TradesOwnershipEmployees

Cosan S.A. (CSAN) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · CSAN · as of Jun 8, 2026

Activity summary

Buy transactions

0

P-Purchase only

Sell transactions

3

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH
↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Cosan S.A. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

CSAN insider buying and selling by quarter

CSAN insider selling · CSAN insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling
390K195K0
2026 Q1
2026 Q2

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · CSAN ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

CSAN executive sell shares · CSAN board member insider trading · CSAN insider trading SEC filing

Showing 1 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Mello Rubens Ometto Silveira

Director

Sale

Date

May 22

Shares

77,640

Price

$3.44

Value

$267K

View Form 4 on SEC.gov

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About CSAN insider trading

CSAN insider trades

Cosan S.A. (CSAN) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Mello Rubens Ometto Silveira (Director). Over the past 12 months, 1 insiders have filed transactions with the SEC. CSAN insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Cosan S.A.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic
acquisitionOrDisposition field:
A = Acquisition (buy) · D = Disposition (sell)
RSU vesting (M-Exempt) excluded from sentiment
Form 4SEC filing required within 2 business days of any insider transaction
10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot
Open MktDirect purchase or sale on the open market (excludes awards, options)
OwnershipSEC filingsFinancial statementsPrice historyForecast & ratingsEarnings

Frequently asked questions

CSAN insider trading · 5 questions

The insiders of Cosan S.A. (CSAN) include executives and directors such as Mello Rubens Ometto Silveira (Director), among others. Over the past 12 months, 1 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

CSAN board member insider tradingwho are CSAN insidersCSAN insider rosterCosan S.A. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026