Exhibit 10.1

EXECUTION COPY

AMENDMENT NO. 2

Dated as of May 9, 2011

to

CREDIT AGREEMENT

Dated as of August 23, 2010

THIS AMENDMENT NO. 2 (this “Amendment”) is made as of May 9, 2011 by and among
Parametric Technology Corporation, a Massachusetts corporation (the “Borrower”),
the financial institutions listed on the signature pages hereof and JPMorgan
Chase Bank, N.A., as Administrative Agent (the “Administrative Agent’), under
that certain Credit Agreement dated as of August 23, 2010 by and among the
Borrower, the Lenders and the Administrative Agent as amended by Amendment No. 1
to Credit Agreement dated as of December 20, 2010 (as further amended, restated,
supplemented or otherwise modified from time to time, the “Credit Agreement”).
Capitalized terms used herein and not otherwise defined herein shall have the
respective meanings given to them in the Credit Agreement.

WHEREAS, the Borrower has requested that the requisite Lenders and the
Administrative Agent agree to an amendment to the Credit Agreement;

WHEREAS, the Borrower, the Lenders party hereto and the Administrative Agent
have so agreed on the terms and conditions set forth herein;

NOW, THEREFORE, in consideration of the premises set forth above, the terms and
conditions contained herein, and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Borrower, the
Lenders party hereto and the Administrative Agent hereby agree to enter into
this Amendment.

1. Amendment to the Credit Agreement. Effective as of the date of satisfaction
of the conditions precedent set forth in Section 2 below, the parties hereto
agree that clause (d) of the definition of “Permitted Foreign Subsidiary Loans
and Investments” set forth in Section 1.01 of the Credit Agreement is hereby
amended to (x) insert “(i)” immediately after the reference to “Effective Date,”
appearing therein and (y) add the following at the end thereof:

“and (ii) in addition to the foregoing, to the extent used to consummate the
acquisition by PTC NS ULC, an unlimited liability company organized under the
laws of Nova Scotia, of all of the outstanding shares of MKS Inc., a corporation
organized under the laws of Ontario, pursuant to and in accordance with the
Arrangement Agreement, dated as of April 6, 2011, by and among the Borrower, PTC
NS ULC and MKS Inc.”

2. Conditions of Effectiveness. The effectiveness of this Amendment is subject
to the conditions precedent that the Administrative Agent shall have received
(i) counterparts of this Amendment duly executed by the Borrower, the Required
Lenders and the Administrative Agent and (ii) counterparts of the Consent and
Reaffirmation attached as Exhibit A hereto duly executed by the Subsidiary
Guarantors.

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3. Representations and Warranties of the Borrower. The Borrower hereby
represents and warrants as follows:

(a) This Amendment and the Credit Agreement as modified hereby constitute valid
and binding obligations of the Borrower and are enforceable against the Borrower
in accordance with their terms.

(b) As of the date hereof and after giving effect to the terms of this
Amendment, (i) no Default or Event of Default shall have occurred and be
continuing, and (ii) the representations and warranties of the Borrower set
forth in the Credit Agreement are true and correct in all material respects (or,
if a representation or warranty is expressly stated to have been made as of a
specific date, such representation or warranty shall be true and correct in all
material respects as of such specific date).

4. Reference to and Effect on the Credit Agreement.

(a) Upon the effectiveness hereof, each reference to the Credit Agreement in the
Credit Agreement or any other Loan Document shall mean and be a reference to the
Credit Agreement as amended hereby.

(b) Each Loan Document and all other documents, instruments and agreements
executed and/or delivered in connection therewith shall remain in full force and
effect and are hereby ratified and confirmed.

(c) Except with respect to the subject matter hereof, the execution, delivery
and effectiveness of this Amendment shall not operate as a waiver of any right,
power or remedy of the Administrative Agent or the Lenders, nor constitute a
waiver of any provision of the Credit Agreement, the Loan Documents or any other
documents, instruments and agreements executed and/or delivered in connection
therewith.

5. Governing Law. This Amendment shall be construed in accordance with and
governed by the law of the State of New York.

6. Headings. Section headings in this Amendment are included herein for
convenience of reference only and shall not constitute a part of this Amendment
for any other purpose.

7. Counterparts. This Amendment may be executed by one or more of the parties
hereto on any number of separate counterparts, and all of said counterparts
taken together shall be deemed to constitute one and the same instrument.

[Signature Pages Follow]

 

2

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IN WITNESS WHEREOF, this Amendment has been duly executed as of the day and year
first above written.

 

PARAMETRIC TECHNOLOGY CORPORATION, as the Borrower By:  

/s/ Stephen G. Bouchard

Name:   Stephen G. Bouchard Title:   Treasurer

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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JPMORGAN CHASE BANK, N.A., individually as a Lender, as the Swingline Lender, as
an Issuing Bank and as Administrative Agent By:  

/s/ D. Scott Farquhar

Name:   D. Scott Farquhar Title:   Senior Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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KEYBANK NATIONAL ASSOCIATION, as a Lender By:  

/s/ David A. Wild

Name:   David A. Wild Title:   Senior Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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SOVEREIGN BANK, as a Lender By:  

/s/ A. Neil Sweeny

Name:   A. Neil Sweeny Title:   Senior Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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RBS CITIZENS, NATIONAL ASSOCIATION, as a Lender By:  

/s/ William M. Clossey

Name:   William M. Clossey Title:   Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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WELLS FARGO BANK, NATIONAL ASSOCIATION, as a Lender By:  

/s/ Denis Waltrich

Name:   Denis Waltrich Title:   Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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SILICON VALLEY BANK, as a Lender By:  

/s/ Philip T. Silvia III

Name:   Philip T. Silvia III Title:   Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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THE HUNTINGTON NATIONAL BANK, as a Lender By:  

/s/ Joe Tonges

Name:   Joe Tonges Title:   Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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HSBC BANK USA, NATIONAL ASSOCIATION, as a Lender By:  

/s/ Kerry Anne O’Callaghan

Name:   Kerry Anne O’Callaghan Title:   Senior AVP

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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TD BANK, N.A., as a Lender By:  

/s/ Marla Willner

Name:   Marla Willner Title:   Senior Vice President

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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BANK OF AMERICA, N.A., as a Lender By:  

/s/ William S. Rowe

Name:   William S. Rowe Title:   Director

 

Signature Page to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation

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EXHIBIT A

Consent and Reaffirmation

Each of the undersigned hereby acknowledges receipt of a copy of the foregoing
Amendment No. 2 to the Credit Agreement (as the same may be amended, restated,
supplemented or otherwise modified from time to time, the “Credit Agreement”) by
and among Parametric Technology Corporation, a Massachusetts corporation (the
“Borrower”) the Lenders and JPMorgan Chase Bank, N.A., as Administrative Agent
(the “Administrative Agent”), which Amendment No. 2 is dated as of May 9, 2011
and is by and among the Borrower, the financial institutions listed on the
signature pages thereof and the Administrative Agent (the “Amendment”).
Capitalized terms used in this Consent and Reaffirmation and not defined herein
shall have the meanings given to them in the Credit Agreement. Without in any
way establishing a course of dealing by the Administrative Agent or any Lender,
each of the undersigned consents to the Amendment and reaffirms the terms and
conditions of the Subsidiary Guaranty and any other Loan Document executed by it
and acknowledges and agrees that the Subsidiary Guaranty and each and every such
Loan Document executed by the undersigned in connection with the Credit
Agreement remains in full force and effect and is hereby reaffirmed, ratified
and confirmed. All references to the Credit Agreement contained in the
above-referenced documents shall be a reference to the Credit Agreement as so
modified by the Amendment and as the same may from time to time hereafter be
amended, modified or restated.

Dated May 9, 2011

[Signature Page Follows]

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IN WITNESS WHEREOF, this Consent and Reaffirmation has been duly executed as of
the day and year above written.

 

PARAMETRIC HOLDINGS INC.     COMPUTERVISION LLC, by its sole member      
PARAMETRIC TECHNOLOGY CORPORATION By:  

/s/ Stephen G. Bouchard

    Name:   Stephen G. Bouchard     Title:   Treasurer     By:  

/s/ Stephen G. Bouchard

      Name:   Stephen G. Bouchard       Title:   Treasurer PTC INTERNATIONAL,
INC.     PTC NETHERLANDS LLC By:  

/s/ Stephen G. Bouchard

    By:  

/s/ Stephen G. Bouchard

Name:   Stephen G. Bouchard     Name:   Stephen G. Bouchard Title:   Treasurer  
  Title:   Treasurer ARBORTEXT, INC.     RELEX SOFTWARE CORPORATION By:  

/s/ Stephen G. Bouchard

    By:  

/s/ Stephen G. Bouchard

Name:   Stephen G. Bouchard     Name:   Stephen G. Bouchard Title:   Treasurer  
  Title:   Treasurer

Signature Page to Consent and Reaffirmation to Amendment No. 2 to

Credit Agreement dated as of August 23, 2010

Parametric Technology Corporation