Negative Commitments. Except as set forth in [Section 7], during the Agreement Effective Period, each of the Company Parties shall not directly or indirectly:

The Borrowers may, by written notice to the Administrative Agent on two occasions during the period from the Closing Date to the date five Business Days prior to the Maturity Date, request incremental Commitments in an amount not less than $25,000,000 per request and not more than $150,000,000 in the aggregate from one or more additional Lenders (which may include any existing Lender, each, a “New Term Loan Lender”) willing to provide such incremental Commitments in their own discretion; provided, that each New Term Loan Lender shall be subject to the approval of the Administrative Agent (which approval shall not be unreasonably withheld) unless such New Term Loan Lender is a Lender or an Affiliate of a Lender. Such notice shall set forth # the amount of the incremental Commitments being requested, and # the date on which such incremental Commitments are requested to become effective (the “Increased Amount Date”). On any Increased Amount Date on which any such incremental Commitments are effective, subject to the satisfaction of the foregoing terms and conditions, # each New Term Loan Lender shall make a Loan to the Borrowers (a “New Term Loan”) in an amount equal to its incremental Commitment, and # each New Term Loan Lender shall become a Lender hereunder with respect to such incremental Commitment and the New Term Loans made pursuant thereto. The terms and provisions of the New Term Loans and the incremental Commitments shall be identical to the existing Loans.

Term Commitments. Subject to the terms and conditions hereof, # each 2016 Term Lender severally agreed to make a term loan (a “2016 Term Loan”) to the Borrower on the Restatement Effective Date in an amount not to exceed the 2016 Term Commitment of such 2016 Term Lender, # each 2019 Term Lender severally agreed to make a term loan (a “2019 Term Loan” and upon the Fourth Amendment Effective Date, such 2019 Term Loan becoming a term loan with a maturity date of September 25, 2021 (a “2021 Term Loan”)) to the Borrower on the Restatement Effective Date in an amount not to exceed the 2019 Term Commitment of such 2019 Term Lender and, # each 2023 Term Lender severally agreesagreed to make a term loan or continue its 2021 Term Loan pursuant to the terms of the Fifth Amendment (each, a “2023 Term Loan”) to the Borrower on the Fifth Amendment Effective Date in an amount not to exceed the 2023 Term Commitment of such 2023 Term Lender and # each 2026 Term Lender severally agrees to make a term loan or exchange its 2023 Term Loan pursuant to the terms of the Sixth Amendment (each, a “2026 Term Loan”) to the Borrower on the Sixth Amendment Effective Date in an amount not to exceed the 2026 Term Commitment of such 2026 Term Lender. The Term Loans may from time to time be LIBOR Rate Loans or ABR Loans, as determined by the Borrower and notified to the Administrative Agent in accordance with [Sections 2.2 and 3.3]3].

. (a[[Borrower:Organization]] Subject to the terms and conditions hereof, each Revolving Lender severally agrees to make revolving credit loans (“Revolving Loans”) in Dollars to the Borrower and/or the Co-Borrower, as the case may be, from time to time during the Revolving Commitment Period in an aggregate principal amount at any one time outstanding which, when added (after giving effect to any application of proceeds of such Revolving Loans pursuant to Section 2.6(b[[Borrower:Organization]]) to the sum of # such Lender’s Revolving Percentage of the L/C Obligations then outstanding, # such Lender’s Swingline Exposure then outstanding and # the Dollar Equivalent of the aggregate principal amount of the Foreign Currency Loans of such Lender then outstanding, does not exceed the amount of such Lender’s Revolving Commitment. During the Revolving Commitment Period the Borrower and the Co-Borrower may use the Revolving Commitments by borrowing, prepaying the Revolving Loans in whole or in part, and reborrowing, all in accordance with the terms and conditions hereof. The Revolving Loans may from time to time be Eurodollar Loans or ABR Loans, as determined by the Borrower or the Co-Borrower, as applicable, and notified to the Administrative Agent in accordance with Sections 2.5 and 2.12.

If any Defaulting Lender fails to respond to a request for a consent, waiver, amendment of or in relation to any term of any Finance Document or any other vote of Lenders under the terms of this Agreement within fifteen (30) Business Days (unless the Borrowers and the Agent agree to a longer time period in relation to any request) of that request being made:

Eligible Commitments. The Collateral Parties will cause, the net proceeds of any Eligible Commitment to be funded solely (as promptly as reasonably practicable) into # an Eligible Funding Account or # the Proceeds Account.

Incremental Commitments. (a) The Company and any one or more Banks (including New Banks) may from time to time agree that such Banks shall make, obtain or increase the amount of their Commitments (“Incremental Commitments”), by executing and delivering to the Administrative Agent an Increased Facility Activation Notice specifying # the amount of such Incremental Commitment and # the Increased Facility Closing Date; provided that, immediately prior to and after giving effect to any such increase in the Commitments # no Default or Event of Default shall have occurred and be continuing and # each of the representations and warranties made by the Company in or pursuant to the Credit Documents shall be true and correct in all material respects (or, if such representations and warranties are qualified by materiality, in all respects) on and as of such date as if made on and as of such date (except that any representations and warranties which expressly relate to an earlier date shall be true and correct in all material respects (or, if such representations and warranties are qualified by materiality, in all respects) as of such earlier date). Notwithstanding the foregoing, # without the consent of the Required Lenders, the aggregate amount of Incremental Commitments obtained after the Restatement Effective Date pursuant to this paragraph shall not exceed $100,000,000, # without the consent of the Administrative Agent, each increase effected pursuant to this paragraph shall be in a minimum amount of at least $10,000,000 and # all Incremental Commitments shall be documented solely as an increase to the Commitments, all Loans under Incremental Commitments (“Incremental Loans”) shall be identical to the Loans, and the terms and provisions of the Incremental Commitments and Incremental Loans shall be no more favorable than those applicable to the Commitments and Loans, respectively, including, without limitation, in respect of any interest rate margin applicable to any such Incremental Loans and any undrawn commitment fee payable to any Bank or New Bank (as defined below) in connection with such Incremental Commitments. No Bank shall have any obligation to participate in any increase described in this paragraph unless it agrees to do so in its sole discretion.

Financial Commitments. RA’s obligations upon expiration or termination of this Agreement with respect to the Financial Commitments are set forth on Exhibit E.

Revolving Commitments. If for any reason the Total Revolving Outstandings at any time exceed the Aggregate Revolving Commitments then in effect, the Borrower shall promptly prepay Revolving Loans and/or Swing Line Loans and/or Cash Collateralize the L/C Obligations in an aggregate amount equal to such excess; provided, however, that the Borrower shall not be required to Cash Collateralize the L/C Obligations pursuant to this [Section 2.05(c)(i)] unless after the prepayment in full of the Revolving Loans and Swing Line Loans the Total Revolving Outstandings exceed the Aggregate Revolving Commitments then in effect.

Other Commitments. Except as otherwise agreed, it is further understood that Institute and the personnel performing the Research Collaboration may be or become involved in other activities and projects which entail commitments to other Third Parties (“Other Work”). The Principal Investigator and the personnel performing the Research Collaboration will use Commercially Reasonable Efforts to progress the Research Collaboration in accordance with terms of the Development Plan, including any timelines set forth therein. Institute and the personnel performing the Research Collaboration will each use their best efforts to avoid conflicts with the terms and obligations of this Agreement. The Principal Investigator will provide Atara with written notice as soon as practicable if he becomes aware of a conflict or potential conflict that may materially impose upon his ability to perform activities under the Development Plan and this Agreement. Nothing in this Agreement shall be construed to limit the freedom of Institute, or their researchers who are not participants in the Research Collaboration under this Agreement, from engaging in Other Work made under other agreements with other parties than Atara. Notwithstanding the foregoing, Institute and the Principal Investigator shall use all reasonable efforts to distinguish the research performed in connection with the Research Collaboration under this Agreement from all Other Work, and shall keep records pertaining to such Other Work separately from the records to be maintained pursuant to Article 8.