close
About ATA
About ATA
Honors
Advantage and value
Corporate service
Testing Service
Assessment services
Online education
Education evaluation
Corporate products
Large-scale testing system – E
E-testing MTS
Cloud-based e-testing system -
E-learning system - Xueyanshe
Assessment
Investment partners
News
News
Conference & Event
Contact Us
Contact us
Recruitment
Join ATA
SEC Filings
Overview
News / Events
Company Info
Profile
Presentations
Management Team
Contacts
FAQ
Financial Info
Stock Data
SEC Filings
Governance
Investor Tools
Email Alerts
Tear Sheet
Contacts
RSS News Feed
Current location:
Homepage
Investors
SEC Filings
Overview
Filing Type:
View All
20-F
20-F/A
424B3
424B4
6-K
6-K/A
8-A12B
8-A12B/A
CERTNAS
CORRESP
CT ORDER
EFFECT
F-1
F-1/A
F-3
F-6
F-6/A
FWP
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
UPLOAD
Year:
View All
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
Date
Form
Description
PDF
XBRL
Pages
04/02/12
CORRESP
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
17
03/21/12
CORRESP
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
1
03/09/12
UPLOAD
SEC-generated letter
7
02/22/12
6-K
Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16
Documents
EX-99.1
13
02/10/12
SC 13G/A
Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions
5
02/10/12
SC 13G/A
Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions
9
02/10/12
SC 13G/A
Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions
9
02/06/12
SC 13G/A
Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions
6
11/07/11
6-K
Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16
Documents
EX-99.1
12
10/20/11
6-K
Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16
Documents
EX-99.1
5
14
15
16
17
18
19
20
21
22
23