UNITED 
STATES 
SECURITIE
S AND 
EXCHANG
E 
COMMISSI
ON 
Washington, 
D.C. 20549
SCHEDULE 
13G

Under the Se-
curities Ex-
change Act of 
1934

(Amendment 
No. ___)*
Arco Platform Ltd
(Name of Issuer)
Class A Shares
(Title of Class of Securities)
G04553106
(CUSIP Number)
October 2, 2018
(Date of Event which Requires Filing of this Statement)

Check the ap-
propriate box 
to designate 
the rule pursu-
ant to which 
this Schedule 
is filed:

	[x]  
Rule 13d-1(b)

	[_]  
Rule 13d-1(c)

	[_]  
Rule 13d-1(d)

*The remain-
der of this 
cover page 
shall be filled 
out for a report-
ing person?s in-
itial filing on 
this form with 
respect to the 
subject class of 
securities, and 
for any subse-
quent amend-
ment contain-
ing information 
which would 
alter the disclo-
sures provided 
in a prior cover 
page.

The infor-
mation re-
quired in the re-
mainder of this 
cover page 
shall not be 
deemed to be 
?filed? for the 
purpose of Sec-
tion 18 of the 
Securities Ex-
change Act of 
1934 (?Act?) or 
otherwise sub-
ject to the lia-
bilities of that 
section of the 
Act but shall be 
subject to all 
other provi-
sions of the Act 
(however, see 
the Notes).



SCHEDULE 
13G
CUSIP No. 
G04553106

1
Names of Reporting Persons

AustralianSuper Pty Ltd
2
Check the appropriate box if a member of a Group (see instructions)

(a)  [ ] 
(b)  [ ]
3
Sec Use Only


4
Citizenship or Place of Organization

Australia
Number of 
Shares 
Beneficially 
Owned by Each 
Reporting Person 
With:

5
  Sole Voting Power


  1,133,496 Class A Shares

6
  Shared Voting Power


  0

7
  Sole Dispositive Power


  0

8
  Shared Dispositive Power


  0
9
Aggregate Amount Beneficially Owned by Each Reporting Person

1,133,496 Class A Shares
10
Check box if the aggregate amount in row (9) excludes certain shares

[ ]
11
Percent of class represented by amount in row (9)

5.01%
12
Type of Reporting Person (See Instructions)

FI


Item 1.	
(a)	Name of Is-
suer: Arco 
Platform Ltd
(b)	Address of 
Issuer?s Prin-
cipal Execu-
tive Offices: 

Rua Elvira Fer-
raz 250
Sala 716, Vila 
Olimpia
Sao Paulo ? SP 
04552-040 
Brazil
Item 2.	
(a)	Name 
of Per-
son 
Filing:  
Aus-
trali-
anSu-
per Pty 
Ltd
(b)	Ad-
dress 
of 
Princi-
pal 
Busi-
ness 
Office 
or, if 
None, 
Resi-
dence:  

Level 33, 50 
Lonsdale Street
Melbourne 
Victoria 3000
Australia
(c)	Citi-
zen-
ship:
	Aus-
tralia
(d)	Title 
and 
Class 
of Se-
curi-
ties:
	Class 
A
(e)	CUSI
P No.:
	G045
53106
Item 3. 	If 
thi
s 
sta
te-
me
nt 
is 
file
d 
pu
rs
ua
nt 
to  
24
0.1
3d
-
1(
b) 
or 
24
0.1
3d
-
2(
b) 
or 
(c), 
ch
ec
k 
wh
eth
er 
the 
pe
rso
n 
fil-
ing 
is 
a:
(a)	[_]
	Broker 
or dealer 
registered 
under Sec-
tion 15 of 
the Act;
(b)	[_]
	Bank 
as defined in 
Section 
3(a)(6) of 
the Act;
(c)	[_]
	Insur-
ance com-
pany as de-
fined in Sec-
tion 3(a)(19) 
of the Act;
(d)	[_]
	Invest-
ment com-
pany regis-
tered under 
Section 8 of 
the Invest-
ment Com-
pany Act of 
1940;
(e)	[_]
	An in-
vestment ad-
viser in ac-
cordance 
with Rule 
13d-
1(b)(1)(ii)(E
);
(f)	[_]
	An 
employee 
benefit plan 
or endow-
ment fund in 
accordance 
with Rule 
13d-
1(b)(1)(ii)(F
);
(g)	[_]
	A par-
ent holding 
company or 
control per-
son in ac-
cordance 
with Rule 
13d-
1(b)(1)(ii)(G
);
(h)	[_]
	A sav-
ings associa-
tions as de-
fined in Sec-
tion 3(b) of 
the Federal 
Deposit In-
surance Act 
(12 U.S.C. 
1813);
(i)	[_]
	A 
church plan 
that is ex-
cluded from 
the defini-
tion of an 
investment 
company 
under sec-
tion 3(c)(14) 
of the In-
vestment 
Company 
Act of 1940;
(j)	[x]
	A non-
U.S. institu-
tion in ac-
cordance 
with Rule 
240.13d-
1(b)(1)(ii)(J)
;
(k)	[_]
	Group, 
in accord-
ance with 
Rule 
240.13d-
1(b)(1)(ii)(K
). If filing as 
a non-U.S. 
institution in 
accordance 
with Rule 
240.13d-
1(b)(1)(ii)(J)
, please 
specify the 
type of insti-
tution: ____
Item 4.	Own-
ership
(a)
	Amo
unt 
Bene-
ficially 
Owne
d:  
	 
1,133,4
96 
Class 
A 
Shares
 (b)	Percent of 
Class:  5.01%
 (c)	Num-
ber of shares 
as to which 
such person 
has:
	(i)
	Sole 
power to vote 
or to direct the 
vote:  
1,133,496 
Class A Shares
	(ii)
	Share
d power to 
vote or to di-
rect the vote: 0
(iii)	Sole 
power to 
dispose or to 
direct the 
disposition 
of: 0
(iv)	Share
d power to 
dispose or to 
direct the 
disposition 
of: 0
Item 5.
	O
wnership of 
Five Percent 
or Less of a 
Class.
If this state-
ment is being 
filed to report 
the fact that as 
of the date 
hereof the re-
porting person 
has ceased to 
be the benefi-
cial owner of 
more than five 
percent of the 
class of securi-
ties, check the 
following [    ].
Item 6.
	O
wn
er-
shi
p 
of 
mo
re 
th
an 
Fi
ve 
Pe
rce
nt 
on 
Be
hal
f 
of 
An
ot
he
r 
Pe
rso
n.  
No
t 
ap-
pli
ca-
ble
Item 7.
	Id
en-
ti-
fi-
ca-
tio
n 
an
d 
cla
ssi
fi-
ca-
tio
n 
of 
the 
su
bsi
di-
ar
y 
wh
ich 
ac-
qu
ire
d 
the 
se-
cu-
rit
y 
be-
ing 
re-
po
rte
d 
on 
by 
the 
pa
re
nt 
hol
di
ng 
co
m
pa
ny 
or 
co
ntr
ol 
pe
rso
n.  
No
t 
ap-
pli
ca-
ble
Item 8.
	Id
en-
ti-
fi-
ca-
tio
n 
an
d 
cla
ssi
fi-
ca-
tio
n 
of 
me
m
be
rs 
of 
the 
gr
ou
p.  
No
t 
ap-
pli
ca-
ble
Item 9.
	No
tic
e 
of 
Di
sso
lu-
tio
n 
of 
Gr
ou
p.  
No
t 
ap-
pli
ca-
ble
Item 10.
	Ce
rti
fi-
ca-
tio
ns.


SIGNATURE
After reasona-
ble inquiry and 
to the best of 
my knowledge 
and belief, I 
certify that the 
information set 
forth in this 
statement is 
true, complete 
and correct.
Dated:  12 Feb-
ruary, 2019
/s/ Signature
Name/Title
AustralianSu-
per Pty Ltd
Paul Doig
Analyst
The original 
statement shall 
be signed by 
each person on 
whose behalf 
the statement is 
filed or his au-
thorized repre-
sentative.  If the 
statement is 
signed on be-
half of a person 
by his author-
ized repre-
sentative (other 
than an execu-
tive officer or 
general partner 
of this filing 
person), evi-
dence of the 
representative's 
authority to 
sign on behalf 
of such person 
shall be filed 
with the state-
ment, provided, 
however, that a 
power of attor-
ney for this 
purpose which 
is already on 
file with the 
Commission 
may be incor-
porated by ref-
erence.  The 
name and any 
title of each 
person who 
signs the state-
ment shall be 
typed or printed 
beneath his sig-
nature.
Attention:  In-
tentional mis-
statements or 
omissions of 
fact constitute 
Federal crimi-
nal violations 
(See 18 U.S.C. 
1001).
Page 2 of 2
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