Exhibit 10.55

SHARE PURCHASE AGREEMENT



THIS SHARE PURCHASE
AGREEMENT (the “Agreement”) dated March 14, 2012 by and among XTL Biopharmaceuticals Ltd., a public company
incorporated under the laws of the State of Israel (the “Company”) and the subscriber detailed on the 2nd
Signatory Page herein (the "Investor").



WITNESSETH:



WHEREAS,
the Company is a biopharmaceutical company focused on the development, in-licensing, acquisition, and commercialization of proprietary
products and late-stage pharmaceutical product candidates for the treatment of unmet medical needs; and



WHEREAS,
the Company's shares are traded on the Tel-Aviv Stock Exchange ("TASE") and Company's ADRs are quoted on the Pink
Sheets; and



WHEREAS,
the Board of Directors of the Company has decided to raise funds by way of a private placement on TASE of an amount between US$3
Million and US$3.5 Million by way of the issuance to investors of Units (as defined below) on the terms and conditions detailed
in Exhibit A attached hereto (the "Private Placement"); and



WHEREAS,
the Investor desire to invest in the Company pursuant to the terms and conditions set forth in the Private Placement and this Agreement;
and



NOW,
THEREFORE, in the consideration of the mutual promises and covenants set forth herein, the parties agree as follows:



| | 1. | Issue and Purchase of the Units
| | -- | -------------------------------



1.1         Purchase of
Units. At the Closing (as defined below), subject to the terms and conditions hereof, the Company shall issue and allot to
the Investors, and the Investors shall purchase from the Company such number of Units as set out in the 2nd Signatory
Page attached hereto (the “Issued Securities”), in consideration of the payment by the Investors to the Company
upon the Closing of the Investment Amount set out in the 2nd Signatory Page attached hereto (the “Investment”).



1.2         Units.
Each "Unit" shall comprise of (i) six (6) Ordinary Shares, nominal value NIS 0.1 each of the Company (the "Ordinary
Shares"), (ii) two (2) non tradable warrants (no. 1) ("Warrants No.1") and (iii) one (1) non tradable
warrant (no. 2) ("Warrant No. 2"). The terms and conditions of Warrant No. 1 and Warrant No. 2 are set out in
Exhibit A attached hereto.





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













1.3         Private
Placement. The Private Placement shall be performed in accordance with the Israeli Securities Regulations (Private Offering
of Securities in a Listed Company), 5760-20001 (the "Security Regulations") in accordance with a Private Placement
Report published by the Company immediately after the signing and execution of this Agreement.



2.           Closing
of the Private Placement



2.1. The Closing.
The issue and allotment of the Issued Securities and the purchase of the Issued Securities by the Investors shall take place at
a closing (the “Closing”), to be held at the offices of Kantor & Co., Oz House, 14 Abba Hillel Rd., Ramat
Gan, Israel subject to the terms and conditions of this Agreement, immediately upon fulfillment of the Closing Conditions (as defined
below) detailed below (the "Closing Date").



2.2. Transactions
at Closing. At the Closing, the following transactions shall occur, which transactions shall be deemed to take place simultaneously
and no transactions shall be deemed to have been completed or any document delivered until all such transactions have been completed
and all required documents delivered:



2.2.1. The Company
shall deposit with the registration company a share certificates evidencing the Ordinary Shares included in the Issued Securities
acquired by the Investors with instructions to transfer such Ordinary Shares to respective account designated by each Investor;



2.2.2. The Investor
shall deliver to the Company the bank account number opened in the Investor's name with an Israeli broker who is a member of TASE
to which the Ordinary Shares detailed in Section 2.2.1 above will be deposited by the registration company.



2.2.3. The Company
shall deliver to the Investor a duly signed and executed Warrant Certificate in relation to the Warrant No. 1 included in the Issued
Securities acquired by the Investor hereunder;



2.2.4. The Company
shall deliver to the Investor a duly signed and executed Warrant Certificate in relation to the Warrant No. 2 included in the Issued
Securities acquired by the Investor hereunder;



2.2.5. The Investor
shall cause the transfer to the Company of the Investment Amount for the Issued Securities being issued hereunder, by wire transfer,
banker's check, or such other form of payment as is mutually agreed by the Company and the Investors.





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













3.         Representations
and Warranties of the Investor





The Investor hereby
represents and warrants to the Company as follows:



3.1. This Agreement,
when executed and delivered by it, will constitute a valid, binding, and enforceable obligation. The execution, delivery, and performance
of its obligations hereunder have been duly authorized by all necessary corporate or partnership action.



3.2. The Investor
is an experienced investor The Investor represents and agrees that the Issued Securities are purchased only for investment, for
its own account. The Investor understands and acknowledges that the Warrant No. 1 and Warrant No. 2 have not been registered under
the Israeli securities laws of any jurisdiction.



3.3. The Investor
understands and acknowledges that it has been advised to rely on their own professional tax advisors with regard to its investment
pursuant to this Agreement.



3.4. The Investor
understands and acknowledges that the Company constitutes a “high-risk” investment due to the fact that the Company
is in the business of developing pharmaceutical product candidates for the treatment of unmet medical
needs, and that there is no assurance as to any return on such Investor’s investment pursuant to this Agreement.



3.5. The Investor
represents and acknowledges that such Investor is aware of the restrictions on sale of any of the Issued Securities acquired by
it under the Private Placement as imposed by Section 15C of the Israeli Securities Law, 5728-1968 (the and any regulations promulgated
thereunder.



4.         Conditions
Precedent



Conditions to Closing
by the Investors. The obligations of the Investors to purchase the Issued Securities and to transfer the Investment Amount
is subject to the final approval of the board of directors of Company and the approval of TASE to register for trade the Ordinary
Shares and the Ordinary Shares underlying the Warrants of the Issued Securities in accordance with the Securities Regulations.



5.         AffirmativeCovenants



The Ordinary Shares
included in the Issued Securities acquired by the Investors shall have all the rights and privileges attached to the Ordinary Shares
of the Company as set forth in the Company’s existing Articles of Association.



6.         Miscellaneous.



6.1. Further Assurances.
Each of the parties hereto shall perform such further acts and execute such further documents as may reasonably be necessary to
carry out and give full effect to the provisions of this agreement and the intentions of the parties as reflected thereby.





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













6.2. Governing
Law. This Agreement shall be governed by and construed according to the laws of the State of Israel, without regard to the
conflict of laws provision thereof, and the parties hereto irrevocably submit to the exclusive jurisdiction of the courts in Tel-Aviv,
Israel in respect of any dispute or matter arising out of or connected with this Agreement.



6.3. Successors
and Assigns. Except as otherwise expressly stated to the contrary herein, the provisions hereof shall inure to the benefit
of, and be binding upon, the successors, assigns under law, heirs, executors, and administrators of the parties hereto. None of
the rights, privileges or obligations of the Investor set forth in, arising under, or created by this Agreement may be assigned
or transferred without the prior written consent of the Company.



6.4. Entire Agreement;
Amendment and Waiver.



This Agreement and
the Schedules hereto constitute the full and entire understanding and agreement between the parties with regard to the subject
matters hereof and thereof. All prior understandings and agreements among the Parties are void and of no further effect. Any term
of this Agreement may be amended, waived, or discharged (either prospectively or retroactively, and either generally or in a particular
instance), by a written instrument signed by all the Parties to this Agreement.



6.5. Notices, etc.



All notices and other
communications required or permitted hereunder to be given to a party to this Agreement shall be in writing and shall be telecopied
or mailed by registered or certified mail, postage prepaid, or otherwise delivered by hand or by messenger, addressed to such party’s
address as set forth in Schedule 6.5 attached hereto or at such other address as the party shall have furnished to each
other party in writing as above provided. Any notice sent in accordance with this Section 6.5 shall be effective (i) if mailed
by registered or certified mail, five (5) business days after mailing, (ii) if sent by messenger, upon delivery, and (iii) if send
via telecopier, upon transmission and telephonic confirmation of receipt or (if transmitted and received on a non-business day)
on the first business day following transmission and telephonic confirmation of receipt, or upon receipt of a copy sent by mail
as set forth above.



6.6. Delays or
Omissions. No delay or omission to exercise any right, power, or remedy accruing to any party upon any breach or default under
this Agreement, shall be deemed a waiver of any other breach or default therefore or thereafter occurring. Any waiver, permit,
consent, or approval of any kind or character on the part of any party of any breach or default under this Agreement, or any waiver
on the part of any party of any provisions or conditions of this Agreement, must be in writing and shall be effective only to the
extent specifically set forth in such writing. All remedies, either under this Agreement, or by law, or otherwise afforded to any
of the parties, shall be cumulative and not alternative.





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













6.7. Severability.
If any provision of this Agreement is held by a court of competent jurisdiction to be unenforceable under applicable law, then
such provision shall be excluded from this Agreement and the remainder of this Agreement shall be interpreted as if such provision
were so excluded and shall be enforceable in accordance with its terms; provided, however, that in such event this Agreement shall
be interpreted so as to give effect, to the greatest extent consistent with and permitted by applicable law, to the meaning and
intention of the excluded provision as determined by such court of competent jurisdiction.



6.8. Counterparts.
This Agreement may be executed in any number of counterparts, each of which shall be deemed an original and enforceable against
the parties actually executing such counterpart, and all of which together shall constitute one and the same instrument.



6.9. Heading, Preamble,
and Schedules. The titles and subtitles used in this Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement. The Preamble and Schedules are an integral and inseparable part of this Agreement.



IN WITNESS WHEREOF
the parties have signed this Agreement as of the date first hereinabove set forth.



(Intentionally left Blank)





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE COMPANY:





|XTL BIOPHARMACEUTICALS LTD. |                                
|--------------------------- | -------------------------------
|                            |                                
|By:                         | /s/ David Grossman, Ronen Twito
|Name:                       | David Grossman, Ronen Twito    
|Title:                      | CEO, CFO                       





(1st Signatory Page of
Share Purchase Agreement)





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



MUST INTERNATIONAL TRADING LIMITED LTD.



|By:    | /s/Hila Fisher                      | 
|------ | ----------------------------------- | 
|Name:  | Hila Fisher on behlf of Simon Doyev | 
|Title: | Owner                               | 



|Number of Units Acquired |  | Investment Amount |           | Account Details
|------------------------ |  | ----------------- | --------- | ---------------
|                         |  |                   |           |                
|                         |  | US$               | 1,000,000 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)



XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement











IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



TALMA GINZBURG INVESTMENT LTD.



|By:    | /s/ Tal Ginzburg | 
|------ | ---------------- | 
|Name:  |                  | 
|Title: |                  | 





|Number of Units Acquired |  | Investment Amount |         | Account Details
|------------------------ |  | ----------------- | ------- | ---------------
|                         |  |                   |         |                
|31,500                   |  | NIS               | 149,184 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)



XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



MENORA MIVTAHIM UNDERWRITERS & MANAGEMENT
LTD.



|By:    | /s/ Gil Kalderon  | 
|------ | ----------------- | 
|Name:  | Gil Kalderon      | 
|Title: | Managing Director | 



|Number of Units Acquired |  | Investment Amount |         | Account Details
|------------------------ |  | ----------------- | ------- | ---------------
|                         |  |                   |         |                
|105,575                  |  | NIS               | 500,000 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



DROR TAMARI



|By:    | /s/ Dror Tamari | 
|------ | --------------- | 
|Name:  | Dror Tamari     | 
|Title: |                 | 



|Number of Units Acquired |  | Investment Amount |         | Account Details
|------------------------ |  | ----------------- | ------- | ---------------
|                         |  |                   |         |                
|120,000                  |  | NIS               | 568,320 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)



XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement











IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



PROVIDENT FUND OF THE EMPLOYEES OF THE HEBREW
UNIVERSITY OF JERUSALEM LTD.



|By:    | /s/ Shmuel Rosenblum | 
|------ | -------------------- | 
|Name:  | Shmuel Rosenblum     | 
|Title: | CEO                  | 



|Number of Units Acquired |  | Investment Amount |         | Account Details
|------------------------ |  | ----------------- | ------- | ---------------
|                         |  |                   |         |                
|73,900                   |  | NIS               | 349,990 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)



XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













IN WITNESS WHEREOF the parties have signed
this Agreement as of the date first hereinabove set forth.



THE INVESTOR:



BANK JULIUS BAER & CO. LTD.



|By:    | /s/ U. Mettler, S. Siebenmann | 
|------ | ----------------------------- | 
|Name:  | U. Mettler, S. Siebenmann     | 
|Title: |                               | 



|Number of Units Acquired |  | Investment Amount |           | Account Details
|------------------------ |  | ----------------- | --------- | ---------------
|                         |  |                   |           |                
|800,000                  |  | USD               | 1,012,322 |                



*) Minimum of ~$US100,000 (NIS 380,000)



(2nd Signatory Page of
Share Purchase Agreement)





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement











EXHIBIT A



|Unit: | Each Unit consists of: | 6 Ordinary Shares of XTL; and
|----- | ---------------------- | -----------------------------
|      |                        | 2 Warrants (No. 1); and      
|      |                        | 1 Warrants (No. 2).          



| | Unit Price: | NIS 4.736 Based on the Average Price on TASE for the
last 14 days, calculated as of the date of this letter (NIS 0.7894 multiplied by 6)
| | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------



| | Warrants 1: | Exercise period of six (6) months from the date of grant
for an exercise price of NIS 0.95 per share (linked to the $US) Warrant (No.1) shall not be registered for trading.
| | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Warrants 2: | Exercise period of thirty six (36) month from the date
of grant for an, exercise price of NIS 1.02 per share (linked to the $US) Warrant (No. 2) shall not be registered for trading.
| | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Lock-up: | The securities issued in such private placement shall
be locked up in accordance with the rules and regulations of the Israeli Securities Laws.
| | -------- | -----------------------------------------------------------------------------------------------------------------------------------------------



*) if the average share price on the
transaction completion date will be higher than NIS 0.94, the warrants exercise price shall be negotiated.





XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement













Dear Investors,



According to Exhibit A to the Share Purchase
Agreement dated March 14, 2012 signed by you (the “Agreement”), and due to the fact that the average share price
for the 14 days prior to the completion of the transaction according to the Agreement is higher than NIS 0.94, the warrants exercise
price is herby adjusted to reflect the updated share price by keeping the same ratios as in the Agreement, as follows:



| | Warrants 1: | Exercise period of six (6) months from the date of grant
for an exercise price of NIS 1.046 per share (linked to the $US) Warrant (No.1) shall not be registered for trading.
| | ----------- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Warrants 2: | Exercise period of thirty six (36) month from the date
of grant for an, exercise price of NIS 1.124 per share (linked to the $US) Warrant (No. 2) shall not be registered for trading.
| | ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                                     |  | Warrant #1 |       |   | Warrant #2 | 
|---------------------------------------------------- |  | ---------- | ----- | - | ---------- | 
|Adjustment calculation                               |  | NIS        |      
|Exercise price according to the Agreement            |  |            | 0.950 |   |            | 
|Premium rate as of the date the Agreement was sent   |  |            | 6.03  | % |            | 
|Share price as of the date of XTL's board resolution |  |            | 0.987 |   |            | 
|Final adjusted exercise price                        |  |            | 1.046 |   |            | 





THE INVESTOR:





|By:    | 
|------ | 
|Name:  | 
|Title: | 







XTL Biopharmaceuticals LTD. - Ordinary
Share Purchase Agreement