-----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, HKwpZUj7NO7gEt7qF1gub1r0fOC0pxU5QIoPqsesmwVpfGOzYA0yAG1RdheWAdFQ pKTegc+ek6gGElJvqVbERQ== 0001137774-09-000030.txt : 20090206 0001137774-09-000030.hdr.sgml : 20090206 20090206125924 ACCESSION NUMBER: 0001137774-09-000030 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20090206 DATE AS OF CHANGE: 20090206 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 SEC ACT: 1934 Act SEC FILE NUMBER: 005-51731 FILM NUMBER: 09575858 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 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 1 atmi.htm 13G HTML File DOCUMENT TYPE SC 13G
TEXT


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


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: 234,136 See Exhibit A
6) Shared Voting Power: 1,384,264 See Exhibit A
7) Sole Dispositive Power: 234,136 See Exhibit A
8) Shared Dispositive Power: 1,420,264 See Exhibit A

9) AGGREGATE AMOUNT BENEFICIALLY OWNED:
1,654,400 See Exhibit A

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

11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
5.2 See Exhibit A

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: 1,654,400 See Exhibit A

(b) Percent of Class: 5.2


(c) Powers                No. Of Shares
----------- --------------------
Sole power to vote or 234,136 See Exhibit A to direct the vote
Shared power to vote or 1,384,264 See Exhibit A to direct the vote
Sole power to dispose or 234,136 See Exhibit A to direct disposition
Shared power to dispose 1,420,264 See Exhibit A or to direct disposition

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

Not Applicable

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

See Exhibit A

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: Frank Adamo
Second Vice President

Date: 02/06/2009
As of: 12/31/2008

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

ITEM 6. OWNERSHIP:

Prudential Financial, Inc. through its beneficial ownership of the Prudential
Insurance Company of America ("PICOA") may be deemed to presently hold 20,900
shares of Issuer's common stock for the benefit of PICOA's general account.

Prudential Financial, Inc. may be deemed the beneficial owner of securities
beneficially owned by the Item 7 listed entities and may have direct or
indirect voting and/or investment discretion over 1,633,500 shares which are
held for it's own benefit or for the benefit of its clients by its separate
accounts, externally managed accounts, registered investment companies,
subsidiaries and/or other affiliates.  Prudential Financial, Inc.  is reporting
the combined holdings of these entities for the purpose of administrative
convenience.

These shares were acquired in the ordinary course of business, and not with the
purpose or effect of changing or influencing control of the Issuer.  The filing
of this statement should not be construed as an admission that Prudential
Financial, Inc. is, for the purposes of Sections 13 or 16 of the Securities
Exchange Act of 1934, the beneficial owner of these shares.


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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