CSAN

Cosan S.A.

Company with tickers: CSAN

CIK

1430162

CUSIP

22113B103

Shares Outstanding

3,966,570,932

Website

https://www.cosan.com.br

13F Activity (30d)

2 filings 1 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-1

Net shares bought

0.10%

Net buy value

+$22,950,241

Date	Insider	Role	Type	Shares	Price	Value	After
2026-05-22	Mello Rubens Ometto Silveira	Director	Sell	77,640	$3.44	$267,082	0
2026-05-19	Drummond Maria Rita de Carvalho	Chief Legal Officer	Other	280,954	$5.14	$1,444,104	2,332,228
2026-05-19	Drummond Maria Rita de Carvalho	Chief Legal Officer	Other	280,954	$5.14	$1,444,104	409,122
2026-05-19	Martins Marcelo Eduardo	Director, Chief Executive Officer	Buy	2,441,528	$5.14	$12,549,454	4,890,286
2026-05-19	Martins Marcelo Eduardo	Director, Chief Executive Officer	Other	2,441,528	$5.14	$12,549,454	2,353,314
2026-04-17	Drummond Maria Rita de Carvalho	Chief Legal Officer	Sell	37,400	$5.48	$204,915	2,128,536
2026-04-16	Drummond Maria Rita de Carvalho	Chief Legal Officer	Sell	36,200	$5.48	$198,488	2,165,936
2026-04-15	Drummond Maria Rita de Carvalho	Chief Legal Officer	Sell	35,800	$5.57	$199,406	2,202,136
2026-04-10	Martins Marcelo Eduardo	Director, Chief Executive Officer	Other	1,552,511	$7.05	$10,942,408	4,794,842
2026-04-10	Martins Marcelo Eduardo	Director, Chief Executive Officer	Buy	1,599,086	$7.05	$11,270,678	3,120,178
2026-03-18	Cruz Simon Flavia	Director	Other	0	—	—	0
2026-03-18	MAZZOLA RENATO ANTONIO SECONDO	Director	Other	0	—	—	0
2026-03-18	Esteves Andre Santos	Director	Other	0	—	—	0
2026-03-18	Rapparini Soares Luis Claudio	Director	Other	0	—	—	0

Showing 1–14 of 14 transactions