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OMB APPROVAL
UNITED STATES ---------------------------
SECURITIES AND EXCHANGE COMMISSION OMB Number 3235-0145
Washington, D.C. 20549 Expires: October 31, 1997
Estimated average burden
hours per response....14.90
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SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. _________________)*
Dionex Corporation
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(Name of Issuer)
Common Stock
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(Title of Class of Securities)
254546104
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(CUSIP Number)
Check the following box if a fee is being paid with this statement [X]. (A fee
is not required only if the filing person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
Page 1 of 6 pages
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CUSIP NO. 254546104 13G PAGE 2 OF 6 PAGES
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1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Granahan Investment Management, Inc. 04-2856200
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [_]
Not Applicable (b) [_]
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Commonwealth of Massachusetts
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NUMBER OF SOLE VOTING POWER
5
SHARES 738,200
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BENEFICIALLY SHARED VOTING POWER
6
OWNED BY -0-
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EACH SOLE DISPOSITIVE POWER
7
REPORTING 738,200
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PERSON SHARED DISPOSITIVE POWER
8
WITH -0-
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
738,200
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.5%
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12 TYPE OF REPORTING PERSON*
IA
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*SEE INSTRUCTION BEFORE FILLING OUT!
Page 2 of 6 pages
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Item 1(a) Name of Issuer Dionex Corporation
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Item 1(b) Address of Issuer's Principal Executive Offices
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1228 Titan Way
Sunnyvale, VA 94086
Item 2(a) Name of Person Filing Granahan Investment Management, Inc.
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Item 2(b) Address of Principal Business Office or, if none, Residence
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275 Wyman Street, Suite 270
Waltham, MA 02154
Item 2(c) State of Organization/Citizenship Commonwealth of
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Massachusetts
Item 2(d) Title of Class of Securities Common Stock
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Item 2(e) CUSIP Number 254546-10-4
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Item 3. If this statement is filed pursuant to Rules 13d-1(b),
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or 13d-2(b), check whether the person filing is a
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(a) [ ] Broker or Dealer registered under Section 15 of the Act
(b) [ ] Bank as defined in Section 3(a)(6) of the Act
(c) [ ] Insurance Company as defined in Section 3(a)(19)
of the Act
(d) [ ] Investment Company registered under Section 8 of the
Investment Company Act
Page 3 of 6 pages
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(e) [X] Investment Adviser registered under Section 203 of the
Investment Advisers Act of 1940
(f) [_] Employee Benefit Plan, Pension Fund which is subject to
the provisions of the Employee Retirement Income Security
Act of 1974 or Endowment Fund; see (S)240.13d-
1(b)(1)(ii)(F)
(g) [ ] Parent Holding Company, in accordance with (S)240.13d-
1(b)(1)(ii)(G)
(h) [ ] Group, in accordance with (S)240.13d-1(b)(1)(ii)(H)
Item 4. Ownership
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(a) Amount Beneficially Owned: 738,200
(b) Percent of Class: 5.5%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote: 738,200
(ii) shared power to vote or to direct the vote: -0-
(iii) sole power to dispose or to direct the
disposition of: 738,200
(iv) shared power to dispose or to direct the
disposition -0-
Item 5. Ownership of Five Percent or Less of a Class
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N/A
Item 6. Ownership of More than Five Percent on Behalf of
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Another Person
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N/A
Item 7. Identification and Classification of the Subsidiary
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Which Acquired the Security Being Reported on By the Parent
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Holding Company
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N/A
Page 4 of 6 pages
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Item 8. Identification and Classification of Members of the
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Group
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N/A
Item 9. Notice of Dissolution of Group
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N/A
Item 10. Certification
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By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired in the
ordinary course of business and were not acquired for the purpose of
and do not have the effect of changing or influencing the control of
the issuer of such securities and were not acquired in connection with
or as a participant in any transaction having such purposes or effect.
Page 5 of 6 pages
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Signature
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After reasonably 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.
Date: February 13, 1996 GRANAHAN INVESTMENT MANAGEMENT, INC.
By: /s/ John J. Granahan, President
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Page 6 of 6 pages
