Cosan S.A. (CSAN) - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Cosan S.A.
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2026-05-18
Purchase
2026-09-15
4:41 pm
Cosan S.A.CSANCordes Burkhard Otto
Director
159,000$4.3775$696,0302,408,942
(Indirect
Direct)
View
2026-05-22
Sale
2026-05-26
4:34 pm
Cosan S.A.CSANMello Rubens Ometto Silveira
Director
77,640$3.44$267,082822,235,290
(Indirect)
View
2026-04-10
Purchase
2026-05-21
8:22 pm
Cosan S.A.Martins Marcelo Eduardo
Chief Executive Officer
4,040,614$5.8952$23,820,1327,961,019
(Direct)
View
2026-04-15
Sale
2026-05-21
5:18 pm
Cosan S.A.CSANDrummond Maria Rita de Carvalho
Chief Legal Officer
109,400$5.5101$602,8091,643,918
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2026-09-11
Other
2026-09-15
4:51 pm
N/A
N/A
Cosan S.A.CSANBergman Rafael
Former Chief Finance Officer
55,242$3.9110,484
(Direct)
View
2026-09-11
Other
2026-09-15
4:46 pm
N/A
N/A
Cosan S.A.CSANDrummond Maria Rita de Carvalho
Former Chief Legal Officer
150,496$3.9973,880
(Direct)
View

Ownership
2026-09-10
4:35 pm
N/A
N/A
Cosan S.A.CSANMenezes de Barros Sobrinho Jose Cezario
Chief Finance Officer
0$0438,932
(Direct)
View
2026-08-10
Other
2026-08-12
5:51 pm
N/A
N/A
Cosan S.A.CSANDrummond Maria Rita de Carvalho
Chief Legal Officer
103,765$3.991,184,908
(Direct)
View
2026-08-10
Other
2026-08-12
4:47 pm
N/A
N/A
Cosan S.A.CSANMartins Marcelo Eduardo
Chief Executive Officer
276,475$3.994,241,146
(Direct)
View
2026-04-10
Other
2026-05-21
8:22 pm
N/A
N/A
Cosan S.A.Martins Marcelo Eduardo
Chief Executive Officer
1,552,511$7.04827,961,019
(Direct)
View
2026-05-19
Other
2026-05-21
8:22 pm
N/A
N/A
Cosan S.A.Martins Marcelo Eduardo
Chief Executive Officer
2,441,528$5.147,961,019
(Direct)
View
2026-05-19
Other
2026-05-21
5:18 pm
N/A
N/A
Cosan S.A.CSANDrummond Maria Rita de Carvalho
Chief Legal Officer
280,954$5.141,643,918
(Direct)
View

Ownership
2026-04-02
12:50 pm
N/A
N/A
Cosan S.A.CSANCordes Burkhard Otto
Director
0$02,249,942
(Direct)
View

Ownership
2026-03-31
2:31 pm
N/A
N/A
Cosan S.A.CSANMartins Marcelo Eduardo
Chief Executive Officer
0$09,921,859
(Direct)
View

Ownership
2026-03-24
12:55 pm
N/A
N/A
Cosan S.A.CSANMello Rubens Ometto Silveira
Director
0$0822,312,930
(Indirect)
View

Ownership
2026-03-18
9:25 pm
N/A
N/A
Cosan S.A.CSANRosenberg Whitaker Carneiro Ralph Gustavo
Director
0$04,251,582
(Indirect)
View

Ownership
2026-03-18
7:19 pm
N/A
N/A
Cosan S.A.CSANDrummond Maria Rita de Carvalho
Chief Legal Officer
0$03,041,115
(Direct)
View

Ownership
2026-03-18
08:52 am
N/A
N/A
Cosan S.A.CSANBergman Rafael
Chief Finance Officer
0$0287,904
(Direct)
View