.016570| 003590|127C|RESTRICTED||4|057-423 NNNNN COMMON STOCK COMMON STOCK PAR VALUE $.001 THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA AND JERSEY CITY, NJ Certificate Shares Number * *600620****** * **600620***** ZQ 000000 ****600620****PROS HOLDINGS, INC.*****600620*********600620** INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE ** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample**** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David THIS CERTIFIES THAT Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. MR. SAMPLE & MRS. SAMPLE & CUSIP 74346Y 10 3 Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample**** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander DavidSample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. SEE REVERSE FOR CERTAIN DEFINITIONS MR. SAMPLE & MRS. SAMPLE Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sample **600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600 is the owner of ***SIX HUNDRED THOUSAND 620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares***600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620** SIX HUNDRED AND TWENTY*** Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Shares****600620**Sh FULLY-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF PROS Holdings, Inc. (hereinafter called the “Company”), transferable on the books of the Company in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and shall be held subject to all of the provisions of the Articles of Incorporation, as amended, and the By-Laws, as amended, of the Company (copies of which are on file with theCompany and with the Transfer Agent), to all of which each holder, by acceptance hereof, assents. ThisCertificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. DATED <<Month Day, Year>> COUNTERSIGNED AND REGISTERED: /s/ Charles H. Murphy COMPUTERSHARE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, President /s/ Albert Winemiller By Secretary AUTHORIZED SIGNATURE PO BOX 43004, Providence, RI 02940-3004 MR A_SAMPLE_DESIGNATION (IF ANY) ADD 1ADD 2 ADD 3 ADD 4 CUSIP XXXXXX XX X Holder ID XXXXXXXXXX Insurance Value 1,000,000.00 Number of Shares 123456 DTC 12345678 123456789012345 Certificate Numbers Num/No. Denom. Total 1234567890/1234567890 1 1 1 1234567890/1234567890 2 2 2 1234567890/1234567890 3 3 3 1234567890/1234567890 4 4 4 1234567890/1234567890 5 5 5 1234567890/1234567890 6 6 6 Total Transaction 7

 PROS HOLDINGS, INC. THE COMPANY WILL FURNISH WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANYAND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE ARTICLES OF INCORPORATION OF THE COMPANY, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES, TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM -as tenants in common UNIF GIFT MIN ACT ­ Custodian (Cust) (Minor) TEN ENT -as tenants by the entireties under Uniform Giftsto Minors Act (State) JT TEN -as joint tenants with right of survivorship UNIF TRF MIN ACT. Custodian (until age. . . ). and not as tenants in common (Cust) (Minor) under Uniform Transfers to Minors Act. (State) Additional abbreviations may also be used though not in the above list. PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE For value received,____________hereby sell, assign and transfer unto (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) Shares of the common stock represented by the within Certificate, and do hereby irrevocably constitute and appoint Attorney to transfer the said stock on the books of the within-named Company with full power of substitution in the premises. Dated: ________20 Signature(s) Guaranteed: Medallion Guarantee Stamp THE SIGNATURE(S) SHOULD BE GUARANTEED BYAN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15. Signature:___________ Signature:______________ Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate, in every particular, without alteration or enlargement, or any change whatever.