-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, M0ncRIGlsuqgntwZEHZIks25BPjnQJurCidGCHDKSgI2LA3RseQyVQO2i5YnjDz7 zyYp2l88yeyNh081GTlFfA== 0001137774-10-000006.txt : 20100203 0001137774-10-000006.hdr.sgml : 20100203 20100203155900 ACCESSION NUMBER: 0001137774-10-000006 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20100203 DATE AS OF CHANGE: 20100203 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ATMI INC CENTRAL INDEX KEY: 0001041577 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INORGANIC CHEMICALS [2810] IRS NUMBER: 061481060 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-51731 FILM NUMBER: 10570649 BUSINESS ADDRESS: STREET 1: 7 COMMERCE DRIVE CITY: DANBURY STATE: CT ZIP: 06810-4169 BUSINESS PHONE: 2037941100 MAIL ADDRESS: STREET 1: 7 COMMERCE DRVIE CITY: DANBURY STATE: CT ZIP: 06810-4169 FORMER COMPANY: FORMER CONFORMED NAME: ATMI HOLDINGS INC DATE OF NAME CHANGE: 19970625 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: PRUDENTIAL FINANCIAL INC CENTRAL INDEX KEY: 0001137774 STANDARD INDUSTRIAL CLASSIFICATION: LIFE INSURANCE [6311] IRS NUMBER: 223703799 STATE OF INCORPORATION: NJ FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 751 BROAD ST CITY: NEWARK STATE: NJ ZIP: 07102 BUSINESS PHONE: 9738026000 MAIL ADDRESS: STREET 1: 751 BROAD ST CITY: NEWARK STATE: NJ ZIP: 07102 SC 13G/A 1 atmi.htm 13G HTML File DOCUMENT TYPE SC 13G/A
TEXT


SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934

Amendment # 1

Name of Issuer: ATMI INC
_____________________________________________________
Title of Class
of Securities: Common Stock

CUSIP Number: 00207R101

1) NAME AND I.R.S. IDENTIFICATION NO. OF REPORTING PERSON

Prudential Financial, Inc. 22-3703799

2.) MEMBER OF A GROUP: (a) N/A
(b) N/A

3) SEC USE ONLY:



4) PLACE OF ORGANIZATION: New Jersey

NUMBER OF SHARES BENEFICIALLY OWNED BY REPORTING PERSON WITH:

5) Sole Voting Power: Not Applicable
6) Shared Voting Power: Not Applicable
7) Sole Dispositive Power: Not Applicable
8) Shared Dispositive Power: Not Applicable

9) AGGREGATE AMOUNT BENEFICIALLY OWNED:
Not Applicable

10) AGGREGATE AMOUNT IN ROW (9) EXCLUDES SHARES: Not Applicable

11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
Not Applicable

12) TYPE OF REPORTING PERSON: HC

ITEM 1(a). NAME OF ISSUER:

ATMI INC

ITEM 1(b). ADDRESS OF ISSUER'S EXECUTIVE OFFICES:

ATMI INC 7 Commerce Drive Danbury, CT 06810

ITEM 2(a). NAME OF PERSON FILING:

Prudential Financial, Inc.

ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE:

751 Broad Street
Newark, New Jersey 07102-3777

ITEM 2(c). CITIZENSHIP:

New Jersey

ITEM 2(d). TITLE OF CLASS OF SECURITIES:

Common Stock

ITEM 2(e). CUSIP NUMBER:

00207R101

ITEM 3. The Person filing this statement is a Parent Holding Company as
defined in Section 240.13d-1(b)(1)(ii)(G) of the Securities Exchange
Act of 1934.

ITEM 4. OWNERSHIP:

(a) Number of Shares
Beneficially Owned: Not Applicable

(b) Percent of Class:


(c) Powers                No. Of Shares
----------- --------------------
Sole power to vote or Not Applicable to direct the vote
Shared power to vote or Not Applicable to direct the vote
Sole power to dispose or Not Applicable to direct disposition
Shared power to dispose Not Applicable or to direct disposition

ITEM 5. OWNERSHIP OF 5% OR LESS OF A CLASS:

Prudential Financial, Inc. through its beneficial ownership of the Item 7 listed entities has ceased to be deemed the beneficial owner of more than 5% of the outstanding Common Stock of this issuer.

ITEM 6. OWNERSHIP OF MORE THAN 5% ON BEHALF OF
ANOTHER PERSON:

Not Applicable

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE
SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING
REPORTED ON BY THE ULTIMATE PARENT COMPANY:

See Exhibit A

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF
MEMBERS OF THE GROUP:

Not Applicable

ITEM 9. NOTICE OF DISSOLUTION OF GROUP:

Not Applicable

ITEM 10. CERTIFICATION:

By signing below, Prudential Financial, Inc. certifies that, to the best of its
knowledge and belief, the securities referred to above were acquired
and are held in the ordinary course of business and were not acquired
and are not held for the purpose of or with the effect of changing or
influencing the control of the issuer of the securities and were not acquired
and are not held in connection with or as a participant in any transaction
having that purpose or effect.


The filing of this statement should not be construed as an admission that
Prudential Financial, Inc. is, for purposes of Sections 13 or 16 of the Securities
Exchange Act of 1934, the beneficial owner of such shares.


SIGNATURE

After reasonable inquiry and to the best of its knowledge and belief,
Prudential Financial, Inc. certifies that the information set forth in this
statement is true, complete and correct.

PRUDENTIAL FINANCIAL, INC.

By: Richard Baker
Second Vice President

Date: 02/03/2010
As of: 12/31/2009

Exhibit A
--------------

ITEM 6. OWNERSHIP:




ITEM 7. IDENTIFICATION/CLASSIFICATION:

Prudential Financial, Inc. is a Parent Holding Company and the direct or indirect parent of the following Registered Investment Advisers and Broker Dealers:




The Prudential Insurance Company of America

IC,IA

Prudential Investment Management, Inc.

IA

Jennison Associates LLC

IA

Prudential Bache Asset Management, Inc.

IA

Prudential Investments LLC

IA

Prudential Private Placement Investors, L.P.

IA,PN

Pruco Securities, LLC

IA,BD

Prudential Investment Management Services LLC

BD

AST Investment Services, Inc.

IA

Prudential Annuities Distributors, Inc.

BD

Quantitative Management Associates LLC

IA

Prudential International Investments Advisers, LLC

IA

Global Portfolio Strategies, Inc.

IA

Prudential Bache Securities, LLC

BD

Prudential Bache Commodities, LLC

BD


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