Document:

EX-10.5

 Exhibit 10.5 

INDEMNIFICATION AGREEMENT 

THIS INDEMNIFICATION AGREEMENT (this “Agreement”) is made and entered into as of
                , 2020 between Oak Street Health, Inc., a Delaware corporation (the “Company”), and [ ] (“Indemnitee”). 

WHEREAS, highly competent persons have become more reluctant to serve corporations as directors or officers or in other capacities unless they
are provided with adequate protection through insurance or adequate indemnification against inordinate risks of claims and actions against them arising out of their service to and activities on behalf of the corporation; 

WHEREAS, the Board of Directors of the Company (the “Board”) has determined that, in order to attract and retain qualified
individuals, the Company will attempt to maintain on an ongoing basis, at its sole expense, liability insurance to protect persons serving the Company and its subsidiaries from certain liabilities. Although the furnishing of such insurance has been
a customary and widespread practice among United States-based corporations and other business enterprises, the Company believes that, given current market conditions and trends, such insurance may be available to it in the future only at higher
premiums and with more exclusions. At the same time, directors, officers and other persons in service to corporations or business enterprises are being increasingly subjected to expensive and time-consuming litigation relating to, among other
things, matters that traditionally would have been brought only against the corporation or business enterprise itself. The Bylaws of the Company (as amended or restated, the “Bylaws”) require indemnification of the officers and
directors of the Company. Indemnitee may also be entitled to indemnification pursuant to the General Corporation Law of the State of Delaware (“DGCL”). The Bylaws and the DGCL expressly provide that the indemnification provisions
set forth therein are not exclusive, and thereby contemplate that contracts may be entered into between the Company and members of the Board, officers of the Company and other persons with respect to indemnification; 

WHEREAS, the uncertainties relating to such insurance and to indemnification have increased the difficulty of attracting and retaining such
persons; 
 WHEREAS, the Board has determined that the increased difficulty in attracting and retaining such persons is detrimental to the
best interests of the Company and its stockholders and that the Company should act to assure such persons that there will be increased certainty of such protection in the future; 

WHEREAS, it is reasonable, prudent and necessary for the Company contractually to obligate itself to indemnify, and to advance expenses on
behalf of, such persons to the fullest extent permitted by applicable law so that they will serve or continue to serve the Company free from undue concern that they will not be so indemnified; 

WHEREAS, this Agreement is a supplement to and in furtherance of the Bylaws and any resolutions adopted pursuant thereto, and shall not be
deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder; [and] 
 WHEREAS, Indemnitee may not be
willing to serve or continue to serve as an officer or director without adequate protection, and the Company desires Indemnitee to serve or continue to serve in such capacity; Indemnitee is willing to serve, continue to serve and take on additional
service for or on behalf of the Company on the condition that Indemnitee be so indemnified[; and] 

 [WHEREAS, Indemnitee has certain rights to indemnification and/or insurance provided by
General Atlantic LLC (“General Atlantic”) or affiliates of General Atlantic which Indemnitee and General Atlantic intend to be secondary to the primary obligation of the Company to indemnify Indemnitee as provided herein, with the
Company’s acknowledgment of and agreement to the foregoing being a material condition to Indemnitee’s willingness to serve on the Board].1 

[WHEREAS, Indemnitee has certain rights to indemnification and/or insurance provided by Newlight Partners LP (“Newlight”) or
affiliates of Newlight which Indemnitee and Newlight intend to be secondary to the primary obligation of the Company to indemnify Indemnitee as provided herein, with the Company’s acknowledgement of and agreement to the foregoing being a
material condition to Indemnitee’s willingness to serve on the
 Board.]2
 NOW,
THEREFORE, in consideration of Indemnitee’s agreement to serve as a director or officer from and after the date hereof, the parties hereto agree as follows: 

1. Indemnity of Indemnitee. Subject to the provisions of Section 9, the Company hereby agrees to hold
harmless and indemnify Indemnitee to the fullest extent permitted by law, as such may be amended from time to time, if Indemnitee was or is, or is threatened to be made, a party to, or otherwise becomes involved in, any Proceeding (as hereinafter
defined) by reason of Indemnitee’s Corporate Status (as hereinafter defined). In furtherance of the foregoing indemnification, and without limiting the generality thereof: 

(a) Proceedings other than Proceedings by or in the Right of the Company. Indemnitee shall be entitled to the rights of
indemnification provided in this Section l(a) if, by reason of Indemnitee’s Corporate Status, Indemnitee is, or is threatened to be made, a party to or participant in, or otherwise becomes involved in, any Proceeding
(as hereinafter defined) other than a Proceeding by or in the right of the Company. Pursuant to this Section 1(a), Indemnitee shall be indemnified against all Expenses, judgments, penalties, fines and amounts paid in
settlement actually and reasonably incurred by Indemnitee, or on Indemnitee’s behalf, in connection with such Proceeding or any claim, issue or matter therein, if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to
be in or not opposed to the best interests of the Company, and with respect to any criminal Proceeding, had no reasonable cause to believe Indemnitee’s conduct was unlawful. 

(b) Proceedings by or in the Right of the Company. Indemnitee shall be entitled to the rights of indemnification provided in this
Section 1(b) if, by reason of Indemnitee’s Corporate Status, Indemnitee is, or is threatened to be made, a party to or participant in any Proceeding brought by or in the right of the Company. Pursuant to this
Section 1(b), Indemnitee shall be indemnified against all Expenses actually and reasonably incurred by Indemnitee, or on Indemnitee’s behalf, in connection with such Proceeding if Indemnitee acted in good faith and in
a manner Indemnitee reasonably believed to be in or not opposed to the best interests of the Company; provided, however, if applicable law so provides, no indemnification 

 
  

	1 	 Bracketed language to be included in form for General Atlantic directors. 

	2 	 Bracketed language to be included in form for Newlight directors.

  
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against such Expenses shall be made in respect of any claim, issue or matter in such Proceeding as to which Indemnitee shall have been finally adjudged by a court to be liable to the Company
unless and only to the extent that the court in which the Proceeding was brought shall determine that Indemnitee is fairly and reasonably entitled to indemnification. 

(c) Indemnification for Expenses of a Party Who is Wholly or Partly Successful. Notwithstanding any other provision of this Agreement,
to the extent that Indemnitee is, by reason of Indemnitee’s Corporate Status, a party to or participant in and is successful, on the merits or otherwise, in any Proceeding or in defense of any claim, issue or matter therein, in whole or in
part, Indemnitee shall be indemnified to the maximum extent permitted by law, as such may be amended from time to time, against all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection therewith. If
Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or otherwise, as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall indemnify Indemnitee against all Expenses
actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with each successfully resolved claim, issue or matter. For purposes of this Section 1(c) and without limitation, the termination
of any claim, issue or matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to be a successful result as to such claim, issue or matter. 

(d) [Indemnification of Nominating Member. If (i) Indemnitee is or was affiliated with one or more investment partnerships that
has invested directly or indirectly in the Company (a “Nominating Member”), (ii) the Nominating Member is, or is threatened to be made, a party to or a participant in any Proceeding, and (iii) the Nominating Member’s
involvement in the Proceeding results from any claim based on the Indemnitee’s service to the Company as a director or other fiduciary of the Company, the Nominating Member will be entitled to indemnification hereunder for Expenses to the same
extent as Indemnitee and advancement of Expenses shall apply to any such indemnification of Nominating Member. The Company and Indemnitee agree that each Nominating Member is an express third party beneficiary of the terms of this
Section 1(d).]3 
 2. Additional Indemnity. In
addition to, and without regard to any limitations on, the indemnification provided for in Section 1 of this Agreement, the Company shall and hereby does, to the fullest extent permitted by applicable law, indemnify and
hold harmless Indemnitee against all Expenses, judgments, penalties, fines and amounts paid in settlement actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf if, by reason of Indemnitee’s Corporate Status, Indemnitee
is, or is threatened to be made, a party to or participant in any Proceeding (including a Proceeding by or in the right of the Company). The only limitation that shall exist upon the Company’s obligations pursuant to this Agreement, other than
those set forth in Section 9 hereof, shall be that the Company shall not be obligated to make any payment to Indemnitee that is finally determined (under the procedures, and subject to the presumptions, set forth in
Sections 6 and 7 hereof) to be unlawful. 
  

	3 	 Bracketed language to be included in forms for Newlight and General Atlantic directors. 

  
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 3. Contribution. 

(a) Whether or not the indemnification provided in Sections 1 and 2 hereof is available, in respect of any threatened, pending
or completed action, suit or proceeding in which the Company is jointly liable with Indemnitee (or would be if joined in such action, suit or proceeding), to the fullest extent permitted by applicable law, the Company shall pay, in the first
instance, the entire amount of any judgment or settlement of such action, suit or proceeding without requiring Indemnitee to contribute to such payment and the Company hereby waives and relinquishes any right of contribution it may have against
Indemnitee. The Company shall not, without the Indemnitee’s prior written consent, enter into any such settlement of any action, suit or proceeding (in whole or in part) unless such settlement (i) provides for a full and final release of
all claims asserted against Indemnitee and (ii) does not impose any Expense, judgment, fine, penalty or limitation on Indemnitee. 

(b) Without diminishing or impairing the obligations of the Company set forth in the preceding subparagraph, if, for any reason, Indemnitee
shall elect or be required to pay all or any portion of any judgment or settlement in any threatened, pending or completed action, suit or proceeding in which the Company is jointly liable with Indemnitee (or would be if joined in such action, suit
or proceeding), to the fullest extent permitted by applicable law, the Company shall contribute to the amount of Expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred and paid or payable by Indemnitee in
proportion to the relative benefits received by the Company and all officers, directors or employees of the Company, other than Indemnitee, who are jointly liable with Indemnitee (or would be if joined in such action, suit or proceeding), on the one
hand, and Indemnitee, on the other hand, from the transaction or events from which such action, suit or proceeding arose; provided, however, that the proportion determined on the basis of relative benefit may, to the extent necessary
to conform to law, be further adjusted by reference to the relative fault of the Company and all officers, directors or employees of the Company, other than Indemnitee, who are jointly liable with Indemnitee (or would be if joined in such action,
suit or proceeding), on the one hand, and Indemnitee, on the other hand, in connection with the transaction or events that resulted in such expenses, judgments, fines or settlement amounts, as well as any other equitable considerations which the law
may require to be considered. The relative fault of the Company and all officers, directors or employees of the Company, other than Indemnitee, who are jointly liable with Indemnitee (or would be if joined in such action, suit or proceeding), on the
one hand, and Indemnitee, on the other hand, shall be determined by reference to, among other things, the degree to which their actions were motivated by intent to gain personal profit or advantage, the degree to which their liability is primary or
secondary and the degree to which their conduct is active or passive. 
 (c) To the fullest extent permitted by applicable law, the Company
hereby agrees to fully indemnify and hold Indemnitee harmless from any claims of contribution which may be brought by officers, directors or employees of the Company, other than Indemnitee, who may be jointly liable with Indemnitee. 

(d) To the fullest extent permissible under applicable law, if the indemnification provided for in this Agreement is unavailable to
Indemnitee for any reason whatsoever, the Company, in lieu of indemnifying Indemnitee, shall contribute to the amount incurred by Indemnitee, whether for judgments, fines, penalties, excise taxes, amounts paid or to be paid in settlement and/or for
Expenses, in connection with any claim relating to an indemnifiable event under this Agreement, in such proportion as is deemed fair and reasonable in 

  
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light of all of the circumstances of such Proceeding in order to reflect (i) the relative benefits received by the Company and Indemnitee as a result of the event(s) and/or transaction(s)
giving cause to such Proceeding, and/or (ii) the relative fault of the Company (and its directors, officers, employees and agents) and Indemnitee in connection with such event(s) and/or transaction(s). 

4. Indemnification for Expenses of a Witness. Notwithstanding any other provision of this Agreement, to the fullest extent permitted by
applicable law and to the extent that Indemnitee is, by reason of Indemnitee’s Corporate Status, a witness, is made (or asked) to respond to discovery requests, or is otherwise asked to participate, in any Proceeding to which Indemnitee is not
a party, Indemnitee shall be indemnified against all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection therewith. 

5. Advancement of Expenses. Notwithstanding any other provision of this Agreement (other than Section 9), the
Company shall advance, to the extent not prohibited by law, all Expenses incurred by or on behalf of Indemnitee in connection with any Proceeding (or part of any Proceeding) not initiated by Indemnitee or any Proceeding initiated by Indemnitee with
the prior approval of the Board as provided in Section 9(d), within thirty (30) days after the receipt by the Company of a statement or statements from Indemnitee requesting such advance or advances from time to time,
whether prior to or after final disposition of such Proceeding. Such statement or statements shall reasonably evidence the Expenses incurred by Indemnitee. Any advances pursuant to this Section 5 shall be unsecured and
interest free. In accordance with Section 7(d) of this Agreement, advances shall include any and all reasonable Expenses incurred pursuing an action to enforce this right of advancement, including Expenses incurred
preparing and forwarding statements to the Company to support the advances claimed. This Section 5 shall not apply to claim by Indemnitee for expenses in a matter for which indemnity and advancement of expenses is excluded
pursuant to Section 9. 
 6. Procedures and Presumptions for Determination of Entitlement to
Indemnification. It is the intent of this Agreement to secure for Indemnitee rights of indemnity that are as favorable as may be permitted under the DGCL and public policy of the State of Delaware. Accordingly, the parties agree that the
following procedures and presumptions shall apply in the event of any question as to whether Indemnitee is entitled to indemnification under this Agreement: 

(a) To obtain indemnification under this Agreement, Indemnitee shall submit to the Company a written request, including therein or therewith
such documentation and information as is reasonably available to Indemnitee and is reasonably necessary to determine whether and to what extent Indemnitee is entitled to indemnification. The Secretary of the Company shall, promptly upon receipt of
such a request for indemnification, advise the Board in writing that Indemnitee has requested indemnification. Notwithstanding the foregoing, any failure of Indemnitee to provide such a request to the Company, or to provide such a request in a
timely fashion, shall not relieve the Company of any liability that it may have to Indemnitee unless, and to the extent that, such failure actually and materially prejudices the interests of the Company. 

  
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 (b) Upon written request by Indemnitee for indemnification pursuant to the first sentence
of Section 6(a) hereof, a determination with respect to Indemnitee’s entitlement thereto shall be made in the specific case by one of the following four methods, which shall be at the election of the Board: (1) by
a majority vote of the Disinterested Directors (as hereinafter defined), even though less than a quorum; (2) by a committee of Disinterested Directors designated by a majority vote of the Disinterested Directors, even though less than a quorum;
(3) if there are no Disinterested Directors, or if the Disinterested Directors so direct, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered to Indemnitee; or (4) if so directed by the Board, by
the stockholders of the Company; provided, however, that if a Change in Control has occurred, the determination with respect to Indemnitee’s entitlement to indemnification shall be made by Independent Counsel. For purposes hereof,
Disinterested Directors are those members of the Board who are not parties to the action, suit or proceeding in respect of which indemnification is sought by Indemnitee. 

(c) In the event the determination of entitlement to indemnification is to be made by Independent Counsel, the Independent Counsel shall be
selected as provided in this Section 6(c). If a Change in Control has not occurred, the Independent Counsel shall be selected by the Board, and the Company shall give written notice to the Indemnitee advising Indemnitee of
the identity of the Independent Counsel so selected. Indemnitee may, within 10 days after such written notice of selection shall have been given, deliver to the Company a written objection to such selection; provided, however, that
such objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent Counsel” as defined in Section 12 of this Agreement, and the objection
shall set forth with particularity the factual basis of such assertion. Absent a proper and timely objection, the Person so selected shall act as Independent Counsel. If a written objection is made and substantiated, the Independent Counsel selected
may not serve as Independent Counsel unless and until such objection is withdrawn or a court has determined that such objection is without merit. If a Change in Control has occurred, the Independent Counsel shall be selected by the Indemnitee
(unless the Indemnitee shall request that such selection be made by the Board, in which event the preceding sentence shall apply), and approved by the Board within 20 days after notification by Indemnitee. If (i) an Independent Counsel is to
make the determination of entitlement pursuant to this Section 6, and (ii) within 20 days after submission by Indemnitee of a written request for indemnification pursuant to Section 6(a)
hereof, no Independent Counsel shall have been selected (including as a result of an objection to the selected Independent Counsel), either the Company or Indemnitee may petition the Court of Chancery of the State of Delaware or other court of
competent jurisdiction for resolution of any objection which shall have been made by Indemnitee to the Company’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a Person selected by the court or by such
other Person as the court shall designate, and the Person with respect to whom all objections are so resolved or the Person so appointed shall act as Independent Counsel under Section 6(b) hereof. The Company shall pay any
and all reasonable fees and expenses of Independent Counsel incurred by such Independent Counsel in connection with acting pursuant to Section 6(b) hereof, and the Company shall pay all reasonable fees and expenses incident
to the procedures of this Section 6(c), regardless of the manner in which such Independent Counsel was selected or appointed. 

(d) In making a determination with respect to entitlement to indemnification hereunder, the Person making such determination shall to
the fullest extent permitted by law presume that Indemnitee is entitled to indemnification under this Agreement. Anyone seeking to overcome this presumption shall have the burden of proof to overcome such presumption. Neither the failure of the
Company (including by its directors or independent legal 

  
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counsel) to have made a determination prior to the commencement of any action pursuant to this Agreement that indemnification is proper in the circumstances because Indemnitee has met the
applicable standard of conduct, nor an actual determination by the Company (including by its directors or Independent Counsel) that Indemnitee has not met such applicable standard of conduct, shall be a defense to the action or create a presumption
that Indemnitee has not met the applicable standard of conduct. 
 (e) Indemnitee shall be deemed to have acted in good faith if
Indemnitee’s action is based on the records or books of account of the Enterprise (as hereinafter defined), including financial statements, or on information supplied to Indemnitee by the officers of the Enterprise in the course of their
duties, or on the advice of legal counsel for the Enterprise or on information or records given or reports made to the Enterprise by an independent certified public accountant or by an appraiser or other expert selected with reasonable care by the
Enterprise. In addition, the knowledge and/or actions, or failure to act, of any director, officer, agent or employee of the Enterprise shall not be imputed to Indemnitee for purposes of determining the right to indemnification under this Agreement.
Whether or not the foregoing provisions of this Section 6(e) are satisfied, it shall in any event be presumed that Indemnitee has at all times acted in good faith and in a manner Indemnitee reasonably believed to be in or
not opposed to the best interests of the Company. Anyone seeking to overcome this presumption shall have the burden of proof and the burden of persuasion by clear and convincing evidence. 

(f) If the Person empowered or selected under this Section 6 to determine whether Indemnitee is entitled to
indemnification shall not have made a determination within thirty (30) days after receipt by the Company of the request therefor, the requisite determination of entitlement to indemnification shall to the fullest extent permitted by law be
deemed to have been made and Indemnitee shall be entitled to such indemnification absent (i) a misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially
misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification under applicable law; provided, however, that such 30-day period may be extended
for a reasonable time, not to exceed an additional fifteen (15) days, if the Person making such determination with respect to entitlement to indemnification in good faith requires such additional time to obtain or evaluate documentation and/or
information relating thereto; and provided, further, that the foregoing provisions of this Section 6(f) shall not apply if the determination of entitlement to indemnification is to be made by the stockholders
pursuant to Section 6(b) of this Agreement and if (A) within fifteen (15) days after receipt by the Company of the request for such determination, the Board or the Disinterested Directors, if appropriate, resolve
to submit such determination to the stockholders for their consideration at an annual meeting thereof to be held within seventy-five (75) days after such receipt and such determination is made thereat, or (B) a special meeting of
stockholders is called within fifteen (15) days after such receipt for the purpose of making such determination, such meeting is held for such purpose within sixty (60) days after having been so called and such determination is made
thereat. 
 (g) Indemnitee shall cooperate with the Person making such determination with respect to Indemnitee’s entitlement
to indemnification, including providing to such Person upon reasonable advance request any documentation or information which is not privileged or otherwise protected from disclosure and which is reasonably available to Indemnitee

  
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and reasonably necessary to such determination. Any costs or expenses (including reasonable attorneys’ fees and disbursements) incurred by Indemnitee in so cooperating with the Person making
such determination shall be borne by the Company (irrespective of the determination as to Indemnitee’s entitlement to indemnification) and the Company hereby indemnifies and agrees to hold Indemnitee harmless therefrom. 

(h) The Company acknowledges that a settlement or other disposition short of final judgment may be successful if it permits a party to
avoid expense, delay, distraction, disruption and uncertainty. In the event that any action, claim or proceeding to which Indemnitee is a party is resolved in any manner other than by adverse judgment against Indemnitee (including, without
limitation, settlement of such action, claim or proceeding with or without payment of money or other consideration) it shall to the fullest extent permitted by law be presumed that Indemnitee has been successful on the merits or otherwise in such
action, suit or proceeding. Anyone seeking to overcome this presumption shall have the burden of proof and the burden of persuasion by clear and convincing evidence. 

(i) The termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a plea
of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith and in
a manner which Indemnitee reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal Proceeding, that Indemnitee had reasonable cause to believe that Indemnitee’s conduct was unlawful. 

7. Remedies of Indemnitee. 

(a) In the event that (i) a determination is made pursuant to Section 6 of this Agreement that Indemnitee is
not entitled to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 5 of this Agreement, (iii) no determination of entitlement to indemnification is made
pursuant to Section 6(b) of this Agreement within thirty (30) days after receipt by the Company of the request for indemnification or (iv) payment of indemnification is not made within ten (10) days after a
determination has been made that Indemnitee is entitled to indemnification or such determination is deemed to have been made pursuant to Section 6 of this Agreement, Indemnitee shall be entitled to an adjudication in an
appropriate court of the State of Delaware, or in any other court of competent jurisdiction, of Indemnitee’s entitlement to such indemnification, contribution or advancement of Expenses. Alternatively, Indemnitee, at Indemnitee’s option,
may seek an award in arbitration to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the American Arbitration Association. The Company shall not oppose Indemnitee’s right to seek any such adjudication or award
in arbitration. 
 (b) In the event that a determination shall have been made pursuant to Section 6(b) of this
Agreement that Indemnitee is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 7 shall be conducted in all respects as a de novo trial, or arbitration, on the merits,
and Indemnitee shall not be prejudiced by reason of the adverse determination under Section 6(b). In any judicial proceeding or arbitration commenced pursuant to this Section 7, Indemnitee shall be
presumed to be entitled to 

  
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indemnification under this Agreement and the Company shall have the burden of proving Indemnitee is not entitled to indemnification or advancement of Expenses, as the case may be, and the Company
may not refer to or introduce into evidence any determination pursuant to Section 6(b) of this Agreement adverse to Indemnitee for any purpose other than to establish its compliance with the terms of this Agreement. If
Indemnitee commences a judicial proceeding or arbitration pursuant to this Section 7, Indemnitee shall not be required to reimburse the Company for any advances pursuant to Section 5 until a final
determination is made with respect to Indemnitee’s entitlement to indemnification (as to which all rights of appeal have been exhausted or lapsed). 

(c) If a determination shall have been made pursuant to Section 6(b) of this Agreement that Indemnitee is entitled
to indemnification, the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant to this Section 7, absent (i) a misstatement by Indemnitee of a material fact, or an
omission of a material fact necessary to make Indemnitee’s misstatement not materially misleading, in connection with the application for indemnification, or (ii) a prohibition of such indemnification under applicable law. 

(d) In the event that Indemnitee, pursuant to this Section 7, incurs costs, in a judicial or arbitration proceeding
or otherwise, attempting to enforce Indemnitee’s rights under, or to recover damages for breach of, this Agreement, or to recover under any directors’ and officers’ liability insurance policies maintained by the Company, the Company
shall pay on Indemnitee’s behalf, in advance, any and all expenses (of the types described in the definition of Expenses in Section 12 of this Agreement) actually and reasonably incurred by Indemnitee in such efforts,
regardless of whether Indemnitee ultimately is determined to be entitled to such indemnification, advancement of expenses or insurance recovery, to the fullest extent permitted by applicable law. It is the intent of the Company that, to the fullest
extent permitted by applicable law, Indemnitee not be required to incur legal fees or other Expenses associated with the interpretation, enforcement or defense of Indemnitee’s rights under this Agreement by litigation or otherwise because the
cost and expense thereof would substantially detract from the benefits intended to be extended to Indemnitee hereunder. 
 (e) The Company
shall, to the fullest extent not prohibited by law, be precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 7 that the procedures and presumptions of this Agreement are not
valid, binding and enforceable and shall stipulate in any such court or before any such arbitrator that the Company is bound by all the provisions of this Agreement. 

(f) Notwithstanding anything in this Agreement to the contrary, no determination as to entitlement to indemnification under this Agreement
shall be required to be made prior to the final disposition of the Proceeding. 
 8.
Non-Exclusivity; Survival of Rights; [Primacy of Indemnification;] Insurance; Subrogation. 

(a) The rights of indemnification and to receive advancement of Expenses as provided by this Agreement shall not be deemed exclusive of any
other rights to which Indemnitee may at any time be entitled under applicable law, the Certificate of Incorporation of the Company (as amended or restated, the “Charter”), the Bylaws, any agreement, a vote of

  
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stockholders, a resolution of directors or otherwise, of the Company. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict any right of
Indemnitee under this Agreement in respect of any action taken or omitted by such Indemnitee in Indemnitee’s Corporate Status prior to such amendment, alteration or repeal. To the extent that a change in the DGCL, whether by statute or judicial
decision, permits greater indemnification than would be afforded currently under the Charter, Bylaws and this Agreement, it is the intent of the parties hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such
change. No right or remedy herein conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing
at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other right or remedy. 

(b) The Company shall, if commercially reasonable, obtain and maintain in effect during the entire period for which the Company is obligated
to indemnify Indemnitee under this Agreement, one or more policies of insurance with reputable insurance companies to provide the directors and officers of the Company with coverage for losses from wrongful acts and omissions and to ensure the
Company’s performance of its indemnification obligations under this Agreement. Indemnitee shall be covered by such policy or policies in accordance with its or their terms to the maximum extent of the coverage available for any such officer or
director under such policy or policies. In all such insurance policies, Indemnitee shall be named as an insured in such a manner as to provide Indemnitee with the same rights and benefits as are accorded to the most favorably insured of the
Company’s directors and officers. At the time of the receipt of a notice of a claim pursuant to the terms hereof, the Company shall give prompt notice of the commencement of such proceeding to the insurers in accordance with the procedures set
forth in the respective policies. The Company shall thereafter take all necessary or desirable action to cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such proceeding in accordance with the terms of such
policies. 
 (c) [The Company hereby acknowledges that Indemnitee has certain rights to indemnification, advancement of expenses and/or
insurance provided by [General Atlantic][Newlight] and certain affiliates that, directly or indirectly, (i) are controlled by, (ii) control or (iii) are under common control with, [General Atlantic][Newlight] (collectively, the
“Fund Indemnitors”). With respect to any amounts that are subject to indemnity under this Agreement and also subject to an indemnity obligation owed by Fund Indemnitors, the Company hereby agrees (i) that, as compared to the
Fund Indemnitors, it is the indemnitor of first resort with respect to any rights to indemnification provided to Indemnitee herein (i.e., its obligations to Indemnitee are primary and any obligation of the Fund Indemnitors to advance expenses or to
provide indemnification for the same expenses or liabilities incurred by Indemnitee is secondary), (ii) that it shall be required to advance the full amount of expenses incurred by Indemnitee and shall be liable for the full amount of all
Expenses, judgments, penalties, fines and amounts paid in settlement to the extent legally permitted and as required by the terms of this Agreement and the Charter or Bylaws of the Company (or any other agreement between the Company and Indemnitee),
without regard to any rights Indemnitee may have against the Fund Indemnitors, and (iii) that it irrevocably waives, relinquishes and releases the Fund Indemnitors from any and all claims against the Fund Indemnitors for contribution,
subrogation or any other recovery of any kind in respect thereof. The Company further agrees that no advancement or payment by the Fund 

  
 10 

 
Indemnitors on behalf of Indemnitee with respect to any claim for which Indemnitee has sought indemnification from the Company shall affect the foregoing and the Fund Indemnitors shall have a
right of contribution and/or be subrogated to the extent of such advancement or payment to all of the rights of recovery of Indemnitee against the Company. The Company and Indemnitee agree that the Fund Indemnitors are express third party
beneficiaries of the terms of this Section 8(c).] 
 (d) [Except as provided in
Section 8(c) above,] in the event of any payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee [(other than against the Fund
Indemnitors)], who shall execute all papers required and take all action necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights. 

(e) [Except as provided in Section 8(c) above,] the Company shall not be liable under this Agreement to make any
payment of amounts otherwise indemnifiable (or for which advancement of Expenses is provided) hereunder if and to the extent that Indemnitee has otherwise actually received such payment under any insurance policy, contract, agreement or otherwise.

 (f) [Except as provided in Section 8(c) above,] the Company’s obligation to indemnify or advance Expenses
hereunder to Indemnitee who is or was serving at the request of the Company as a director, officer, employee or agent of any other corporation, partnership, joint venture, trust, employee benefit plan or other enterprise shall be reduced by any
amount Indemnitee has actually received as indemnification or advancement of expenses from such other corporation, partnership, joint venture, trust, employee benefit plan or other enterprise. 

9. Exception to Right of Indemnification. Notwithstanding any provision in this Agreement, the Company shall not be obligated under
this Agreement to make any indemnity or advancement of expenses in connection with any claim made against Indemnitee: 
 (a) for which
payment has actually been made to or on behalf of Indemnitee under any insurance policy or other indemnity provision, except with respect to any excess beyond the amount paid under any insurance policy or other indemnity provision; [provided,
that the foregoing shall not affect the rights of Indemnitee or the Fund Indemnitors set forth in Section 8(c) above;] or 

(b) for an accounting of profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company within the
meaning of Section 16(b) of the Exchange Act (as hereinafter defined), or similar provisions of state statutory law or common law; or 

(c) for reimbursement to the Company of any bonus or other incentive-based or equity-based compensation or of any profits realized by
Indemnitee from the sale of securities of the Company, in each case as required under the Exchange Act (including any such reimbursements that arise from an accounting restatement of the Company pursuant to Section 304 of the Sarbanes-Oxley Act
of 2002 (the “Sarbanes-Oxley Act”) or Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act in connection with an accounting restatement of the Company or the payment to the Company of profits arising from the
purchase and sale by Indemnitee of securities in violation of Section 306 of the Sarbanes-Oxley Act); 

  
 11 

 (d) in connection with any Proceeding (or any part of any Proceeding) initiated by
Indemnitee, including any Proceeding (or any part of any Proceeding) initiated by Indemnitee against the Company or its directors, officers, employees or other indemnitees, unless (i) the Company has joined in or the Board authorized the
Proceeding (or any part of any Proceeding) prior to its initiation, (ii) the Company provides the indemnification, in its sole discretion, pursuant to the powers vested in the Company under applicable law, or (iii) the Proceeding is one to
enforce Indemnitee’s rights under this Agreement or; 
 (e)    any reimbursement of the Company by Indemnitee of
any compensation pursuant to any compensation recoupment or clawback policy adopted by the Board or the compensation committee of the Board, including but not limited to any such policy adopted to comply with stock exchange listing requirements
implementing Section 10D of the Exchange Act. 
 10. Non-Disclosure of Payments.
Except as expressly required by the securities laws of the United States of America, neither party shall disclose any payments under this Agreement unless prior approval of the other party is obtained. If any payment information must be disclosed,
the Company shall afford the Indemnitee an opportunity to review all such disclosures and, if requested, to explain in such statement any mitigating circumstances regarding the events to be reported. 

11. Duration of Agreement. All agreements and obligations of the Company contained herein shall continue until and terminate upon the
later of (i) twenty (20) years after the date that Indemnitee shall have ceased to serve as a director or officer of the Company or a director, officer, trustee, partner, managing member, fiduciary, employee or agent of any other corporation,
partnership, joint venture, trust, employee benefit plan or other enterprise which Indemnitee served at the request of the Company, and (ii) one (1) year after the final termination of any Proceeding (including any rights of appeal thereto) in
respect of which Indemnitee is granted rights of indemnification or advancement of Expenses hereunder and of any Proceeding commenced by Indemnitee pursuant to Section 7 of this Agreement relating thereto (including any
rights of appeal of any Section 7 Proceeding). Termination of this Agreement shall not adversely affect any right or protection hereunder of any Indemnitee in respect of any Proceeding (regardless of when such Proceeding is
first threatened, commenced or completed) arising out of, or related to, any act or omission occurring prior to the time of such termination. This Agreement shall be binding upon and inure to the benefit of and be enforceable by the parties hereto
and their respective successors (including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business or assets of the Company), assigns, spouses, heirs, executors and personal and
legal representatives. 
 12. Definitions. For purposes of this Agreement: 

(a) “Beneficial Owner” shall have the meaning given to such term in Rule 13d-3 under
the Exchange Act; provided, however, that Beneficial Owner shall exclude any Person otherwise becoming a Beneficial Owner by reason of the stockholders of the Company approving a merger of the Company with another entity. 

  
 12 

 (b) “Change in Control” shall be deemed to occur upon the earliest to
occur after the date of this Agreement of any of the following events: 
 (i) Acquisition of Stock by Third Party. Any
Person (as defined below), other than General Atlantic LLC and its affiliates or Newlight Partners LP and its affiliates and other than a trustee or other fiduciary holding securities under an employee benefit plan of the Company or a corporation
owned directly or indirectly by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company, is or becomes the Beneficial Owner (as defined above), directly or indirectly, of securities of the
Company representing more than 50% of the combined voting power of the Company’s then outstanding securities, unless the change in relative Beneficial Ownership of the Company’s securities by any Person results solely from a reduction in
the aggregate number of outstanding securities entitled to vote generally in the election of directors; 
 (ii) Change in
Board of Directors. During any period of two (2) consecutive years (not including any period prior to the execution of this Agreement), individuals who at the beginning of such period constitute the Board, and any new director (other than a
director designated by a Person who has entered into an agreement with the Company to effect a transaction described in Section 12(b)(i), 12(b)(iii) or 12(b)(iv)) whose election by the Board or nomination for
election by the Company’s stockholders was approved by a vote of at least two-thirds of the directors then still in office who either were directors at the beginning of the period or whose election or
nomination for election was previously so approved, cease for any reason to constitute at least a majority of the members of the Board; 

(iii) Corporate Transactions. The effective date of a merger or consolidation of the Company with any other entity,
other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior to such merger or consolidation continuing to represent (either by remaining outstanding or by being converted into voting
securities of the surviving entity) more than 50% of the combined voting power of the voting securities of the surviving entity outstanding immediately after such merger or consolidation and with the power to elect at least a majority of the board
of directors or other governing body of such surviving entity; and 

  
 13 

 (iv) Liquidation. The approval by the stockholders of the Company of a complete
liquidation of the Company or an agreement or series of agreements for the sale or disposition by the Company of all or substantially all of the Company’s assets, or, if such approval is not required, the decision by the Board to proceed with
such a liquidation, sale, or disposition in one transaction or a series of related transactions. 
 (c) “Corporate Status”
describes the status of a person who is or was a director, officer, employee, agent or fiduciary of the Company, any direct or indirect subsidiary of the Company, or of any other corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise that such person is or was serving at the express written request of the Company. 
 (d) “Disinterested
Director” means a director of the Company who is not and was not a party to the Proceeding in respect of which indemnification is sought by Indemnitee. 

(e) “Enterprise” shall mean the Company and any other corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise that Indemnitee is or was serving at the request of the Company as a director, officer, trustee, partner, managing member, employee, agent or fiduciary. 

(f) “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended. 

(g) “Expenses” shall include all reasonable attorneys’ fees, retainers, court costs, transcript costs, fees of experts
and other professionals, witness fees, travel expenses, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, ERISA excise taxes and penalties, and all other disbursements or expenses of the types
customarily incurred in connection with prosecuting, defending, preparing to prosecute or defend, investigating, participating, or being or preparing to be a witness in a Proceeding, or responding to, or objecting to, a request to provide discovery
in any Proceeding. Expenses also shall include Expenses incurred in connection with any appeal resulting from any Proceeding and any federal, state, local or foreign taxes imposed on Indemnitee as a result of the actual or deemed receipt of any
payments under this Agreement, including without limitation the premium, security for, and other costs relating to any cost bond, supersedeas bond, or other appeal bond or its equivalent. Expenses, however, shall not include amounts paid in
settlement by Indemnitee or the amount of judgments or fines against Indemnitee. 
 (h) “Independent Counsel” means a law
firm, or a member of a law firm, that is experienced in matters of corporation law and neither presently is, nor in the past five (5) years has been, retained to represent: (i) the Company or Indemnitee in any matter material to either
such party (other than with respect to matters concerning Indemnitee under this Agreement, or of other indemnitees under similar indemnification agreements), or (ii) any other party to the Proceeding giving rise to a claim for indemnification
hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any Person who, under the applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the

  
 14 

 
Company or Indemnitee in an action to determine Indemnitee’s rights under this Agreement. The Company agrees to pay the reasonable fees and disbursements of the Independent Counsel referred
to above and to fully indemnify such counsel against any and all Expenses, claims, liabilities and damages arising out of or relating to this Agreement or its engagement pursuant hereto. 

(i) “Person” shall have the meaning as set forth in Sections 13(d) and 14(d) of the Exchange Act; provided,
however, that Person shall exclude (i) the Company, (ii) any trustee or other fiduciary holding securities under an employee benefit plan of the Company, and (iii) any corporation owned, directly or indirectly, by the
stockholders of the Company in substantially the same proportions as their ownership of stock of the Company. 
 (j)
“Proceeding” includes any threatened, pending or completed action, suit, claim, counterclaim, cross claim, arbitration, mediation, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other
actual, threatened or completed proceeding, whether brought by or in the right of the Company or otherwise and whether civil, criminal, administrative or investigative, in which Indemnitee was, is or will be involved as a party or otherwise, by
reason of the fact that Indemnitee is or was an officer or director of the Company, by reason of any action taken by Indemnitee or of any inaction on Indemnitee’s part while acting as an officer or director of the Company, or by reason of the
fact that Indemnitee is or was serving at the request of the Company as a director, officer, employee, agent or fiduciary of another corporation, partnership, joint venture, trust or other enterprise; in each case whether or not Indemnitee is acting
or serving in any such capacity at the time any liability or expense is incurred for which indemnification can be provided under this Agreement; including one pending on or before the date of this Agreement, but excluding one initiated by an
Indemnitee pursuant to Section 7 of this Agreement to enforce Indemnitee’s rights under this Agreement. 

13. Severability. If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable for any reason
whatsoever: (i) the validity, legality, and enforceability of the remaining provisions of this Agreement (including, without limitation, each portion of any Section, paragraph or sentence of this Agreement containing any such provision held to
be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest extent permitted by law; (ii) such provision or
provisions shall be deemed reformed to the fullest extent necessary to conform to applicable law and to give the maximum effect to the intent of the parties hereto; and (iii) to the fullest extent possible, the provisions of this Agreement
(including, without limitation, each portion of any Section, paragraph or sentence of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall be construed
so as to give effect to the intent manifested thereby. Without limiting the generality of the foregoing, this Agreement is intended to confer upon Indemnitee and Nominating Member indemnification rights to the fullest extent permitted by applicable
laws. 
 14. Enforcement and Binding Effect. 

(a) The Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby in
order to induce Indemnitee to serve as a director or officer of the Company, and the Company acknowledges that Indemnitee is relying upon this Agreement in serving or continuing to serve as a director or officer of the Company. 

  
 15 

 (b) Without limiting any of the rights of Indemnitee under the Charter or Bylaws of the
Company as they may be amended from time to time, this Agreement constitutes the entire agreement between the parties hereto with respect to the subject matter hereof and supersedes all prior agreements and understandings, oral, written and implied,
between the parties hereto with respect to the subject matter hereof. 
 (c) The indemnification and advancement of expenses provided by,
or granted pursuant to, this Agreement shall be binding upon and be enforceable by the parties hereto and their respective successors and assigns (including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or
substantially all of the business or assets of the Company), shall continue as to an Indemnitee who has ceased to be a director, officer, employee or agent of the Company or of any other Enterprise at the Company’s request, and shall inure to
the benefit of Indemnitee and Indemnitee’s spouse, assigns, heirs, devisees, executors and administrators and other legal representatives. 

(d) The Company shall require and cause any successor (whether direct or indirect by purchase, merger, consolidation or otherwise) to all or
substantially all of the business and/or assets of the Company to expressly assume and agree to perform this Agreement in the same manner and to the same extent that the Company would be required to perform if no such succession had taken place.

 (e) The Company and Indemnitee agree herein that a monetary remedy for breach of this Agreement, at some later date, may be inadequate,
impracticable and difficult of proof, and further agree that such breach may cause Indemnitee irreparable harm. Accordingly, the parties hereto agree that Indemnitee may enforce this Agreement by seeking injunctive relief and/or specific performance
hereof, without any necessity of showing actual damage or irreparable harm and that by seeking injunctive relief and/or specific performance, Indemnitee shall not be precluded from seeking or obtaining any other relief to which Indemnitee may be
entitled. The Company and Indemnitee further agree that Indemnitee shall be entitled to such specific performance and injunctive relief, including temporary restraining orders, preliminary injunctions and permanent injunctions, without the necessity
of posting bonds or other undertaking in connection therewith. The Company acknowledges that in the absence of a waiver, a bond or undertaking may be required of Indemnitee by the court, and the Company hereby waives any such requirement of such a
bond or undertaking. 
 15. Modification and Waiver. No supplement, modification, termination or amendment of this Agreement shall be
binding unless executed in writing by both of the parties hereto. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provisions hereof (whether or not similar) nor shall such waiver
constitute a continuing waiver. 

  
 16 

 16. Notice By Indemnitee. Indemnitee agrees promptly to notify the Company in writing
upon being served with or otherwise receiving any summons, citation, subpoena, complaint, indictment, information or other document relating to any Proceeding or matter which may be subject to indemnification or advancement of Expenses covered
hereunder. The failure to so notify the Company shall not relieve the Company of any obligation which it may have to Indemnitee under this Agreement or otherwise unless and only to the extent that such failure or delay materially prejudices the
Company. 
 17. Notices. All notices and other communications given or made pursuant to this Agreement shall be in writing and shall
be deemed effectively given: (i) upon personal delivery to the party to be notified, (ii) when sent by confirmed electronic mail or facsimile if sent during normal business hours of the recipient, and if not so confirmed, then on the next
business day, (iii) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (iv) one (1) day after deposit with a nationally recognized overnight courier, specifying next day
delivery, with written verification of receipt. All communications shall be sent: 
 (a) To Indemnitee at the address set forth below
Indemnitee’s signature hereto. 
 (b) To the Company at: 

Oak Street Health, Inc. 
 30 W.
Monroe Street, Suite 1200 
 Chicago, Illinois 60603 

Attention: Chief Legal Officer 

E-mail: robert.guenthner@oakstreethealth.com 

or to such other address as may have been furnished to Indemnitee by the Company or to the Company by Indemnitee, as the case may be. 

18. Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same Agreement. This Agreement may also be executed and delivered by facsimile signature and in two or more counterparts, each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. 
 19. Headings. The headings of the paragraphs of this Agreement are inserted for
convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction thereof. 
 20. Usage of
Pronouns. Use of the masculine pronoun shall be deemed to include usage of the feminine pronoun where appropriate. 
 21. Governing
Law and Consent to Jurisdiction. This Agreement and the legal relations among the parties shall be governed by, and construed and enforced in accordance with, the laws of the State of Delaware, without regard to its conflict-of-laws rules. Except with respect to any arbitration commenced by Indemnitee pursuant to Section 7 of this Agreement, the Company and
Indemnitee hereby irrevocably and unconditionally (i) agree that any action or proceeding arising out of or in connection with this Agreement shall be brought only in the 

  
 17 

 
Chancery Court of the State of Delaware (the “Delaware Court”), and not in any other state or federal court in the United States of America or any court in any other country,
(ii) consent to submit to the exclusive jurisdiction of the Delaware Court for purposes of any action or proceeding arising out of or in connection with this Agreement. 

[THE REMAINDER OF THIS PAGE IS
INTENTIONALLY LEFT BLANK.] 

  
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 IN WITNESS WHEREOF, the parties hereto have executed this Agreement on and as of the
day and year first written above. 
  

			
	OAK STREET HEALTH, INC.
		
	By:	 	
	Name:
	Title:
	
	INDEMNITEE
	
	  

	Name:
	
	Address:
	  

	  

	  

	  

 SIGNATURE PAGE TO INDEMNIFICATION
AGREEMENTEX-10.6

 Exhibit 10.6 

DIRECTOR NOMINATION AGREEMENT 

THIS DIRECTOR NOMINATION AGREEMENT (this “Agreement”) is made and entered into as of [●], 2020, by and among Oak Street
Health, Inc., a Delaware corporation (the “Company”), General Atlantic (OSH) Interholdco, L.P. and its Affiliates (as defined herein) (collectively, “General Atlantic”) and Newlight Harbor Point SPV LLC and its
Affiliates (as defined herein) (collectively, “Newlight” and together with General Atlantic, the “Lead Sponsors”). This Agreement shall become effective (the “Effective Date”) upon the closing of
the Company’s initial public offering (the “IPO”) of shares of its common stock, par value $0.001 per share (the “Common Stock”). 

WHEREAS, as of the date hereof, the Lead Sponsors collectively own a majority of the outstanding equity interests of Oak Street Health, LLC;

 WHEREAS, the Lead Sponsors are contemplating causing the Company to effect the IPO; 

WHEREAS, the Lead Sponsors currently have the authority to appoint certain members of the board of managers of the Company’s subsidiary,
Oak Street Health, LLC; 
 WHEREAS, in consideration of the Lead Sponsors agreeing to undertake the IPO, the Company has agreed to permit
the Lead Sponsors to designate persons for nomination for election to the board of directors of the Company (the “Board”) following the Effective Date on the terms and conditions set forth herein; 

NOW, THEREFORE, in consideration of the mutual covenants contained herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, each of the parties to this Agreement agrees as follows: 
 1. Board Nomination Rights.

 (a) From the Effective Date, each Lead Sponsor shall have the right, but not the obligation, to nominate to the Board a number of
designees equal to at least: (i) three (3) Directors (as defined below), so long as such Lead Sponsor Beneficially Owns shares of Common Stock representing at least 20% of the Common Stock then outstanding, (ii) two (2) Directors, in the
event that such Lead Sponsor Beneficially Owns shares of Common Stock representing at least 10% but less than 20% of the shares of Common Stock then outstanding, and (iii) one (1) Director, in the event that such Lead Sponsor Beneficially Owns
shares of Common Stock representing at least 5% but less than 10% of the shares of Common Stock then outstanding (such persons, the “Nominees”). 

(b) In the event that any Lead Sponsor has nominated less than the total number of designees that such Lead Sponsor shall be entitled to
nominate pursuant to Section 1(a), such Lead Sponsor shall have the right, at any time, to nominate such additional designees to which it is entitled, in which case, the Company and the Directors shall take all necessary
corporation action, to the fullest extent permitted by applicable law (including with respect to fiduciary duties under Delaware law), to (x) enable such Lead Sponsor to nominate and effect the election or appointment of such additional
individuals, whether by increasing the size of the Board, or otherwise and (y) to designate such additional individuals nominated by such Lead Sponsor to fill such newly created vacancies or to fill any other existing vacancies. 

 (c) The Company shall pay all reasonable out-of-pocket expenses incurred by any Nominee in connection with the performance of his or her duties as a director and in connection with his or her attendance at any meeting of the Board. 

(d) “Beneficially Own” shall mean that a specified person has or shares the right, directly or indirectly, through any
contract, arrangement, understanding, relationship or otherwise, to vote shares of capital stock of the Company. “Affiliate” of any person shall mean any other person controlled by, controlling or under common control with such
person; where “control” (including, with its correlative meanings, “controlling,” “controlled by” and “under common control with”) means possession, directly or indirectly, of power
to direct or cause the direction of management or policies (whether through ownership of securities, by contract or otherwise). 
 (e)
“Director” means any member of the Board. 
 (f) No reduction in the number of shares of Common Stock that each Lead Sponsor
Beneficially Owns shall shorten the term of any incumbent director. At the Effective Date, the Board shall be comprised of [twelve] members and the initial Nominees shall be [●]. 

(g) In the event that any Nominee shall cease to serve for any reason, the Lead Sponsor that nominated such Nominee shall be entitled to
designate such person’s successor in accordance with this Agreement (regardless of each Lead Sponsor’s Beneficial Ownership of Common Stock at the time of such vacancy) and the Board shall promptly fill the vacancy with such successor
nominee; it being understood that any such designee shall serve the remainder of the term of the director whom such designee replaces. 
 (h)
If a Nominee is not appointed or elected to the Board because of such person’s death, disability, disqualification, withdrawal as a nominee or for other reason is unavailable or unable to serve on the Board, the applicable Lead Sponsor shall be
entitled to designate promptly another nominee and the director position for which the original Nominee was nominated shall not be filled pending such designation. 

(i) So long as a Lead Sponsor has the right to nominate at least one Nominee under Section 1(a) or any such Nominee is serving on the
Board, the Company shall maintain in effect at all times directors and officers indemnity insurance coverage reasonably satisfactory to the Lead Sponsors, and the Company’s Amended and Restated Certificate of Incorporation and Bylaws (each as
may be further amended, supplemented or waived in accordance with its terms) shall at all times provide for indemnification, exculpation and advancement of expenses to the fullest extent permitted under applicable law. 

(j) At any time that a Lead Sponsor shall have any nomination rights under this Section 1, the Company shall not
increase or decrease the number of Directors serving on the Board without the prior written consent of the Lead Sponsors having such rights. 

  
 2 

 (k) At such time as the Company ceases to be a “controlled company” and is
required by applicable law or the New York Stock Exchange (the “Exchange”) listing standards to have a majority of the Board comprised of “independent directors” (subject in each case to any applicable phase-in periods), the Nominees shall include a number of persons that qualify as “independent directors” under applicable law and the Exchange listing standards such that, together with any other
“independent directors” then serving on the Board that are not Nominees, the Board is comprised of a majority of “independent directors”; provided that at any time that a Lead Sponsor shall have any nomination rights under this
Section 1, (i) each such Lead Sponsor shall be entitled to nominate at least one (1) Nominee who does not qualify as an “independent director” and (ii) the number of “independent
directors” required to be nominated by any Lead Sponsor pursuant to this provision shall not be greater than the number of Nominees required to be “independent directors” pursuant to this provision to be nominated by any other Lead
Sponsor with the right to nominate the same number of, or more, Nominees as such Lead Sponsor. 
 (l) At any time that a Lead Sponsor shall
have any nomination rights under Section 1, the Company shall not take any action, including making or recommending any amendment to Company’s Amended and Restated Certificate of Incorporation or Bylaws (each as may be
further amended, supplemented or waived in accordance with its terms) that could reasonably be expected to adversely affect a Lead Sponsor’s rights under this Agreement, in each case without the prior written consent of the adversely affected
Lead Sponsor. 
 (m) Each Lead Sponsor hereby agrees to be present in person or by proxy and vote or cause to be voted all Common Stock
Beneficially Owned by such Lead Sponsor at each annual or special meeting of the Company at which Directors of the Company are to be elected, in favor of, or to take all actions by written consent in lieu of any such meeting as are necessary, or
other necessary action, to cause the election of the Nominees described in Section 1(a) in accordance with, and otherwise to achieve the composition of the Board of Directors and effect the intent of, the provisions of this Section 1. 

2. Company Obligations. The Company agrees that prior to the date that each Lead Sponsor and its Affiliates cease to Beneficially Own
shares of Common Stock representing at least 5% of the total voting power of the then outstanding Common Stock, (i) each Nominee is included in the Board’s slate of nominees to the stockholders (the “Board’s Slate”)
for each election of directors; and (ii) each Nominee is included in the proxy statement prepared by management of the Company in connection with soliciting proxies for every meeting of the stockholders of the Company called with respect to the
election of members of the Board (each, a “Director Election Proxy Statement”), and at every adjournment or postponement thereof, and on every action or approval by written consent of the stockholders of the Company or the Board
with respect to the election of members of the Board. Each Lead Sponsor will promptly report to the Company after such Lead Sponsor ceases to Beneficially Own shares of Common Stock representing at least 5% of the total voting power of the then
outstanding Common Stock, such that Company is informed of when this obligation terminates. The calculation of the number of Nominees that each Lead Sponsor is entitled to nominate to the Board’s Slate for any election of directors shall be
based on the percentage of the total voting power of the then outstanding Common Stock then Beneficially Owned by each Lead Sponsor (“Lead Sponsor Voting Control”) immediately prior to the mailing

  
 3 

 
to shareholders of the Director Election Proxy Statement relating to such election (or, if earlier, the filing of the definitive Director Election Proxy Statement with the U.S. Securities and
Exchange Commission). Unless a Lead Sponsor notifies the Company otherwise prior to the mailing to shareholders of the Director Election Proxy Statement relating to an election of directors, the Nominees for such election shall be presumed to be the
same Nominees currently serving on the Board, and no further action shall be required of any Lead Sponsor for the Board to include such Nominees on the Board’s Slate; provided, that, in the event a Lead Sponsor is no longer entitled to nominate
the full number of Nominees then serving on the Board, such Lead Sponsor shall provide advance written notice to the Company, of which currently servicing Nominee(s) shall be excluded from the Board Slate, and of any other changes to the list of
Nominees. If a Lead Sponsor fails to provide such notice prior to the mailing to shareholders of the Director Election Proxy Statement relating to such election (or, if earlier, the filing of the definitive Director Election Proxy Statement with the
U.S. Securities and Exchange Commission), a majority of the independent directors then serving on the Board shall determine which of the Nominees of such Lead Sponsor then serving on the Board will be included in the Board’s Slate. Furthermore,
the Company agrees for so long as the Company qualifies as a “controlled company” under the rules of the Exchange the Company will elect to be a “controlled company” for purposes of the Exchange and will disclose in its annual
meeting proxy statement that it is a “controlled company” and the basis for that determination. The Company and the Lead Sponsors acknowledge and agree that, as of the Effective Date, the Company is a “controlled company.” The
Company agrees to provide written notice of the preparation of a Director Election Proxy Statement to the Lead Sponsors at least 20 business days, but no more than 40 business days, prior to the earlier of the mailing and the filing date of any
Director Election Proxy Statement. 
 3. Committees. From and after the Effective Date hereof until such time as each Lead Sponsor and
its Affiliates cease to Beneficially Own Common Stock representing at least 5% of the total voting power of the then outstanding Common Stock, each Lead Sponsor shall have the right to designate one member of each committee of the Board, provided
that any such designee shall be a director and shall be eligible to serve on the applicable committee under applicable law or listing standards of the Exchange, including any applicable independence requirements (subject in each case to any
applicable exceptions, including those for newly public companies and for “controlled companies,” and any applicable phase-in periods). Any additional members shall be determined by the Board.
Nominees designated to serve on a Board committee shall have the right to remain on such committee until the next election of directors, regardless of the level of Lead Sponsor Voting Control following such designation. Unless a Lead Sponsor
notifies the Company otherwise prior to the time the Board takes action to change the composition of a Board committee, and to the extent the applicable Lead Sponsor has the requisite Lead Sponsor Voting Control for such Lead Sponsor to nominate a
Board committee member at the time the Board takes action to change the composition of any such Board committee, any Nominee currently designated by the applicable Lead Sponsor to serve on a committee shall be presumed to be re-designated for such committee. 
 4. Amendment and Waiver. Any provision of this Agreement may be
amended or waived if, but only if, such amendment or waiver is in writing and is signed, in the case of an amendment, by the Company and each Lead Sponsor having at least 5% of the total voting power of the then outstanding Common Stock, or in the
case of a waiver, by the party against whom the 

  
 4 

 
waiver is to be effective. No failure or delay by any party in exercising any right, power or privilege hereunder shall operate as a waiver thereof nor shall any single or partial exercise
thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege. The rights and remedies herein provided shall be cumulative and not exclusive of any rights or remedies provided by law. The Lead Sponsors
shall not be obligated to nominate all (or any) of the Nominees it is entitled to nominate pursuant to this Agreement for any election of directors but the failure to do so shall not constitute a waiver of its rights hereunder with respect to future
elections; provided, however, that in the event a Lead Sponsor fails to nominate all (or any) of the Nominees it is entitled to nominate pursuant to this Agreement prior to the mailing to shareholders of the Director Election Proxy
Statement relating to such election (or, if earlier, the filing of the definitive Director Election Proxy Statement with the U.S. Securities and Exchange Commission), the Nominating and Corporate Governance Committee of the Board shall be entitled
to nominate individuals in lieu of such Nominees for inclusion in the Board’s Slate and the applicable Director Election Proxy Statement with respect to the election for which such failure occurred and such Lead Sponsor shall be deemed to have
waived its rights hereunder with respect to such election; provided, further, however, that any such waiver shall only be effective if the Company has provided written notice to such Lead Sponsor of such Director Election Proxy Statement no less
than 20 business days, and no more than 40 business days, prior to the earlier of the mailing or filing date of such Director Election Proxy Statement. The rights and remedies herein provided shall be cumulative and not exclusive of any rights or
remedies provided by law. 
 5. Benefit of Parties. This Agreement shall be binding upon and shall inure to the benefit of the parties
hereto and their respective permitted successors and assigns. Notwithstanding the foregoing, the Company may not assign any of its rights or obligations hereunder without the prior written consent of each Lead Sponsor that Beneficially Own shares of
Common Stock representing at least 5% of the total voting power of the then outstanding Common Stock. Except as otherwise expressly provided in Section 6, nothing herein contained shall confer or is intended to confer on
any third party or entity that is not a party to this Agreement any rights under this Agreement. 
 6. Assignment. Upon written notice
to the Company, each Lead Sponsor may assign to any Affiliate (other than a portfolio company) all of its rights hereunder and, following such assignment, such assignee shall be deemed to be a “Lead Sponsor” for all purposes
hereunder. 
 7. Headings. Headings are for ease of reference only and shall not form a part of this Agreement. 

8. Governing Law. This Agreement shall be construed in accordance with and governed by the law of the State of Delaware without giving
effect to the principles of conflicts of laws thereof. 
 9. Jurisdiction. Any suit, action or proceeding seeking to enforce any
provision of, or based on any matter arising out of or in connection with, this Agreement may be brought against any of the parties in any federal court located in the State of Delaware or any Delaware state court, and each of the parties hereby
consents to the exclusive jurisdiction of such court (and of the appropriate appellate courts) in any such suit, action or proceeding and waives any objection to 

  
 5 

 
venue laid therein. Process in any such suit, action or proceeding may be served on any party anywhere in the world, whether within or without the jurisdiction of any such court. Without limiting
the foregoing, each of the parties agrees that service of process upon such party at the address referred to in Section 16, together with written notice of such service to such party, shall be deemed effective service of
process upon such party. 
 10. WAIVER OF JURY TRIAL. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL
BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT. 
 11. Entire Agreement. This Agreement
constitutes the entire agreement among the parties with respect to the subject matter hereof and supersedes all prior agreements, understandings and negotiations, both written and oral among the parties with respect to the subject matter hereof.

 12. Counterparts; Effectiveness. This Agreement may be signed in any number of counterparts, each of which shall be deemed an
original. This Agreement shall become effective when each party shall have received a counterpart hereof signed by each of the other parties. An executed copy or counterpart hereof delivered by facsimile shall be deemed an original instrument. 

13. Severability. If any provision of this Agreement or the application thereof to any person or circumstance shall be invalid or
unenforceable to any extent, the remainder of this Agreement and the application of such provisions to other persons or circumstances shall not be affected thereby and shall be enforced to the greatest extent permitted by law. 

14. Further Assurances. Each of the parties hereto shall execute and deliver such further instruments and do such further acts and
things as may be required to carry out the intent and purpose of this Agreement. 
 15. Specific Performance. Each of the parties
hereto agree that irreparable damage would occur if any provision of this Agreement were not performed in accordance with the terms hereof and that the parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement
or to enforce specifically the performance of the terms and provisions hereof in any federal or state court located in the State of Delaware, in addition to any other remedy to which they are entitled at law or in equity. 

16. Notices. All notices, requests and other communications to any party or to the Company shall be in writing (including telecopy or
similar writing) and shall be given, 

  
 6 

 If to the Company: 

Oak Street Health, Inc.. 
 30 W.
Monroe Street 
 Suite 1200 

Chicago, Illinois 60603 

Attention: Chief Legal Officer 

With a copy to (which shall not constitute notice): 

Kirkland & Ellis LLP 

300 N. LaSalle 
 Chicago, IL 60654

 Attention: Robert M. Hayward, P.C. 

Robert E. Goedert, P.C. 

Facsimile: (312) 862-2200 

If to any member of General Atlantic or any of its Nominees: 

c/o General Atlantic Service Company, L.P. 

55 East 52nd Street, 33rd Floor 

New York, NY 10055 
 Attention:
Gordon Cruess 
 Email: gcruess@generalatlantic.com 

If to any member of Newlight or any of its Nominees: 

c/o Newlight Partners LP 
 320
Park Avenue, 25th Floor 
 New York, NY 10022 

Attention: [●] 
 Email:
[●] 
 With a copy to (which shall not constitute notice): 

Paul, Weiss, Rifkind, Wharton & Garrison LLP 

1285 Avenue of the Americas 
 New
York, NY 10019-6064 
 Attention: Matthew Abbott 

Email: mabbott@paulweiss.com 
 or to such other
address or telecopier number as such party or the Company may hereafter specify for the purpose by notice to the other parties and the Company. Each such notice, request or other communication shall be effective when delivered at the address
specified in this Section 16 during regular business hours. 

  
 7 

 17. Enforcement. Each of the parties hereto covenants and agrees that the
disinterested members of the Board have the right to enforce, waive or take any other action with respect to this Agreement on behalf of the Company. 

*    *    *    *    * 

  
 8 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the date first above
written. 
  

			
	OAK STREET HEALTH, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	GENERAL ATLANTIC (OSH) INTERHOLDCO, L.P. 
		
	By:	 	General Atlantic (SPV) GP, LLC,
		 	its General Partner
		
	By:	 	General Atlantic LLC,
		 	its Sole Member
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	[NEWLIGHT HARBOR POINT SPV LLC]
		
	By:	 	  

	Name:	 	
	Title:

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