CSAN

NYSEEnergy

Cosan S.A.

Latest filing · 2026-05-19 · scanner 7d behind

$3.33

-1.0%· 24h

Score

/ 100

Watching

3 triggers firing

C-suite buyLarge buyNet buying 90d

Market cap

$3286.95M

Float

1369.6M

139% of total

Shares out

985,591,399

Short % float

••••

Pro only

Days to cover

••••

Pro only

Price

2 buys3 sells

CSAN

$3.33

$1.87 · -35.9%

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Rule breakdown45 / 110 pts max

41% of maximum scoreSignalContext

Form 4 signals

Cluster buy

3+ distinct insiders with open-market buys in the last 30 days

–

pts

C-suite buy

CEO, CFO, Chair, or President made an open-market purchase

Martins Marcelo Eduardo — Chief Executive Officer

+20

pts

Large single buy

One open-market purchase exceeded the dollar threshold

$12,549,454

+15

pts

First buy in 12 months

An insider bought for the first time in the trailing 12 months

–

pts

Net buying (90d)

Net (buys − sells) USD over the last 90 days is positive

$23,217,323

+10

pts

Context amplifiers

High short interest

Short interest as % of float exceeds the squeeze threshold

–

pts

Small float

Float is below the threshold — amplifies any accumulation signal

–

pts

High days-to-cover

DTC > threshold — shorts can't exit cleanly on a squeeze

–

pts

Volume spike

Most-recent day's volume was >2× the 20-day average

–

pts

Type	Date	Insider	Title	Shares	Price	Value
Other	2026-05-19	Drummond Maria Rita de Carvalho	Chief Legal Officer	280,954	$5.14	$1.44M
Other	2026-05-19	Drummond Maria Rita de Carvalho	Chief Legal Officer	280,954	$5.14	$1.44M
Buy	2026-05-19	Martins Marcelo Eduardo	Chief Executive Officer	2,441,528	$5.14	$12.55M
Other	2026-05-19	Martins Marcelo Eduardo	Chief Executive Officer	2,441,528	$5.14	$12.55M
Sell	2026-04-17	Drummond Maria Rita de Carvalho	Chief Legal Officer	37,400	$5.48	$204.9K

4 more transactions on ProFull insider transaction history is a Pro feature.

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